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1

SLAVINSKAS, Stasys, Gvidonas LABECKAS, and Tomas MICKEVIČIUS. "Effect of biodiesel on the development of split injection characteristics." Combustion Engines 177, no. 2 (2019): 103–7. http://dx.doi.org/10.19206/ce-2019-218.

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The paper presents the experimental test results of a common rail injection system operating with biodiesel and the diesel fuel. The three fuel split injection strategies were implemented to investigate the effects made by biodiesel and a fossil diesel fuel on the history of injector inlet pressure and the injection rate. In addition, the three intervals between split injections and the different injection pressures were used to obtain more information about the studied subjects. The obtained results showed that the peak mass injection rates of the main injection phase were slightly higher whe
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2

Shinde, Mr Bhushan Subhash, Dr Usha C. Pawar, and Mr Rajesh Kumar. "Diesel Engine Fuel Pump Pressure, Time Setting and Calibration." International Journal for Research in Applied Science and Engineering Technology 10, no. 3 (2022): 2014–31. http://dx.doi.org/10.22214/ijraset.2022.41025.

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Abstract: For a diesel engine, fuel pressure time setting and calibration are very important parameters, which influence and increase the engine efficiency, performance, emissions, and combustion. Other injection parameters affecting engine performance are rate of injection, injection pattern, number of injections etc. A single cylinder research engine was used to experimentally determine the effects of fuel injection strategies and injection timings on engine combustion, performance and emission characteristics. The experiments were conducted at constant speed (2500 rpm) with two FIPs (500 an
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3

Çelik, Bahattin, and Doğan Şimşek. "The determination of optimum injection pressure in an engine fuelled with soybean biodiesel/diesel blend." Thermal Science 18, no. 1 (2014): 229–38. http://dx.doi.org/10.2298/tsci120807023c.

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In this study, the optimum blend rate and injection pressure in a four-stroke, single cylinder, direct injection diesel engine using soybean methyl ester were investigated experimentally. The tests were conducted at two stages. Firstly, the engine was tested with diesel fuel, B25 (25% biodiesel+75% diesel fuel), B50, B75 and B100 fuels at full load and at a constant speed. According to the test results, it was determined that the most suitable fuel was B25 in terms of performance and emission. Secondly, the engine was tested at different loads with diesel fuel at original injection pressure an
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4

Yoon, Sam Ki, Jun Cong Ge, and Nag Jung Choi. "Influence of Fuel Injection Pressure on the Emissions Characteristics and Engine Performance in a CRDI Diesel Engine Fueled with Palm Biodiesel Blends." Energies 12, no. 20 (2019): 3837. http://dx.doi.org/10.3390/en12203837.

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This experiment investigates the combustion and emissions characteristics of a common rail direct injection (CRDI) diesel engine using various blends of pure diesel fuel and palm biodiesel. Fuel injection pressures of 45 and 65 MPa were investigated under engine loads of 50 and 100 Nm. The fuels studied herein were pure diesel fuel 100 vol.% with 0 vol.% of palm biodiesel (PBD0), pure diesel fuel 80 vol.% blended with 20 vol.% of palm biodiesel (PBD20), and pure diesel fuel 50 vol.% blended with 50 vol.% of palm biodiesel (PBD50). As the fuel injection pressure increased from 45 to 65 MPa unde
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5

Gao, Tongyang, Shui Yu, Tie Li, and Ming Zheng. "Impacts of multiple pilot diesel injections on the premixed combustion of ethanol fuel." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 232, no. 6 (2017): 738–54. http://dx.doi.org/10.1177/0954407017706858.

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Engine experiments were carried out to study the impact of multiple pilot injections of a diesel fuel on dual-fuel combustion with a premixed ethanol fuel, using compression ignition. Because of the contrasting volatility and the reactivity characteristics of the two fuels, the appropropriate scheduling of pilot diesel injections in a high-pressure direct-injection process is found to be effective for improving the clean and efficient combustion of ethanol which is premixed with air using a low-pressure port injection. The timing and duration of each of the multiple pilot injections were inves
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6

Prakash, Vaibhav, B. Praveen Ramanujam, C. Sanjeev Nivedan, N. Nallusamy, and P. Raghu. "Effect of Various Injection Pressures on Spray Characteristics of Karanja Oil Methyl Ester (KOME) and Diesel in a DI Diesel Engine." Applied Mechanics and Materials 787 (August 2015): 815–19. http://dx.doi.org/10.4028/www.scientific.net/amm.787.815.

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The performance and emissions from diesel engines are greatly influenced by the degree of atomization of the fuel spray. The characteristics of the spray affect the physics of formation of the air-fuel mixture. They depend on density and viscosity of fuel, injection pressure, pressure and temperature of fuel. The spray structure is primarily dependent on the fuel injection pressure. This study involves the carrying out of experimental investigations on biodiesel and diesel fuel sprays in a DI diesel engine for different injection pressures. The spray cone angle and spray tip penetration length
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7

Sulistyo, Bambang, Herminarto Sofyan, Thomas Sukardi, and Agus Widyianto. "Performance and Emission Characteristics Using Dual Injection System of Gasoline and Ethanol." Automotive Experiences 6, no. 2 (2023): 245–58. http://dx.doi.org/10.31603/ae.8070.

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This study successfully investigated the engine performance and emission characteristics of a dual injection system that uses both gasoline and ethanol fuels. The study utilized a microcontroller-based control system (PGM-FI) to substitute ethanol fuel injection for gasoline injection. Ethanol fuel was injected at the inlet with three different pressures: 1.0 bar, 1.2 bar, and 1.4 bar, while gasoline injector pressure was fixed at 2 bar. Results showed that substituting ethanol injection with a pressure of 1 bar resulted in a slight decrease in torque and power, but it was the best compared to
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8

Narender, B. Raja, S. Narasimha Kumar, and B. Hadya. "Impact of Fuel Injection Pressure and Timing on the Performance and Emissions of a Low Heat Rejection CI Engine with Fish Oil Methyl Ester, DEE and Butanol Blend." Journal of Engineering Research and Reports 27, no. 1 (2025): 59–75. https://doi.org/10.9734/jerr/2025/v27i11368.

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This study examines how different fuel injection pressures and timings affect the performance and emissions of a Low Heat Rejection (LHR) engine running on blends of fish oil methyl ester, diethyl ether, and butanol. Results indicate that optimizing the injection pressure up to 230 bar enhances engine performance, fuel efficiency, and emission control. Research supports that increasing fuel injection pressure improves performance and combustion characteristics. For instance, studies have shown that high injection pressures can reduce and soot emissions without compromising fuel economy. The de
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9

Henein, N. A., B. Jawad, and E. Gulari. "Effects of Physical Properties of Fuels on Diesel Injection." Journal of Engineering for Gas Turbines and Power 112, no. 3 (1990): 308–16. http://dx.doi.org/10.1115/1.2906496.

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The physical properties of the fuel, such as density, viscosity, surface tension, and bulk modulus of elasticity, affect many aspects of the diesel injection process. The effects of these fuel properties on the fuel pressure in the high-pressure line, rate of injection, leakage, spray penetration, and droplet size distribution were determined experimentally. The mechanism of spray development was investigated by injecting the fuel into a high-pressure chamber. A pulsed Malvern drop-size analyzer, based on Fraunhofer diffraction, was utilized to determine droplet size ranges for various fuels.
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10

Sirivella, Vijaya Bhaskar *. "EVALUATION ON INFLUENCE OF FUEL INJECTION PRESSURE ON EMISSION CHARACTERISTICS OF CIDI ENGINE USING JATROPHA OIL METHYL ESTER." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 6, no. 10 (2017): 647–52. https://doi.org/10.5281/zenodo.1036702.

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Ever-growing energy demands, diminishing conventional fossil fuel reserves and global inconsistent climatic changes due to emission of dangerous gases, has led to focus on environmental friendly, alternative renewable energy sources. Recently, biodiesels have emerged as the potential alternate to diesel fuel in renewable energy sources. The present work aims to evaluate the effect of fuel injection pressure on the emission characteristics of DI diesel engine when fuelled with Jatropha Curcas Oil Methyl Ester (JCOME). The experimental evaluation was carried out using a four-stroke, single cylin
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11

Grekhov, L. V., V. A. Markov, D. O. Onishchenko, and D. A. Moiseev. "Methods for calculating fuel heating at injection with pressure of up to 400 MPa in a diesel engine." Proceedings of Higher Educational Institutions. Маchine Building, no. 10 (763) (October 2023): 84–95. http://dx.doi.org/10.18698/0536-1044-2023-10-84-95.

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The study is driven by the trend of the rapidly growing injection pressure in diesel and gasoline engines with fuel injection into the combustion chamber. Experimental results were obtained by pouring fuel through a model nozzle and through the electrohydraulic diesel injectors. The paper describes reasons for the fuel significant heating at the injection and proposes its mathematical substantiation. For different tasks and fuels, three methods for the heating calculation during fuel injection at the ultra-high pressures were demonstrated. It was revealed that most important was fuel heating b
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12

Banji, Titilope Ibukun, Gregg Arney, and Daniel B. Olsen. "Fuel Injection Optimization for Large-Bore Two-Stroke Natural-Gas Engines." Energies 18, no. 3 (2025): 624. https://doi.org/10.3390/en18030624.

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Recent methane emissions regulations present a challenge for the large-bore, natural-gas-fueled engines used at over 1700 compression stations across the US. Poor air–fuel mixing in the main combustion chamber of these engines results in low combustion efficiency and the resulting methane emissions. High-pressure fuel injection is believed to be a significant development in improving air–fuel mixing in natural-gas engine combustion chambers. This study aims to determine the sensitivity of in-cylinder mixing to injection pressures using Computational Fluid Dynamics (CFD) simulations, determine
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13

Zahari, Nuraqilah, Bukhari Manshoor, Izzuddin Zaman, et al. "EVALUATION OF GASOLINE DIRECT INJECTION SPRAY MORPHOLOGY FOR VARIES INJECTION PRESSURE USING DISCRETE PHASE MODEL (DPM) APPROACH." International Journal of Innovation and Industrial Revolution 7, no. 20 (2025): 330–43. https://doi.org/10.35631/ijirev.720021.

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Gasoline fuels are a primary fuel that is used widely in engine applications. However, it has contributed to carbon dioxide and particulate matter which led to greenhouse gas emissions. Researchers have conducted many studies to overcome this emission and improve engine fuel injection. These include altering the injection timing, optimizing the fuel-air mixture, and developing advanced technologies such as direct and multi-point injection systems. This study uses the Computational Fluid Domain approach to analyze the spray pattern and characteristics of gasoline direct injection into an engine
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14

Shibata, Gen, Shogo Nishiuchi, Puqing Xie, Shuntaro Takai, Hideyuki Ogawa, and Yoshimitsu Kobashi. "Measurements of fuel adhesion on cylinder walls and fuel wall-flow behavior with post diesel fuel injections." International Journal of Engine Research 21, no. 2 (2019): 352–66. http://dx.doi.org/10.1177/1468087419855200.

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Post fuel injection in the expansion stroke is used for diesel particulate filter regeneration; however, fuel spray impinges on the cylinder liner due to the low temperature and pressure conditions. Fuel adhesion and fuel flowing down across the cylinder liner, the so-called “wall-flow,” was observed by high-speed video images, and this adhesion is a cause of diesel engine lubricant oil dilution and the deterioration of fuel consumption in diesel engines. In this article, the fuel adhesion and the wall-flow of post diesel fuel injections were investigated with a high pressure-temperature const
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15

Simpson, Tyler, and Christopher Depcik. "Multiple Fuel Injection Strategies for Compression Ignition Engines." Energies 15, no. 14 (2022): 5214. http://dx.doi.org/10.3390/en15145214.

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Until the early 1990s, the predominant method of fuel delivery for compression ignition engines was the mechanical pump-line-nozzle system. These systems typically consisted of a cam-driven pump that would send pressurized fuel to the fuel injectors where injection timing was fixed according to the pressure needed to overcome the spring pressure of the injector needle. These configurations were robust; however, they were limited to a single fuel injection event per thermodynamic cycle and respectively low injection pressures of 200–300 bar. Due to their limited flexibility, a poorly mixed and
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16

ROSCA, Radu, Petru CÂRLESCU, Edward RAKOSI, and Gheorghe MANOLACHE. "Comparative analysis of two injection systems fueled with biodiesel." Combustion Engines 137, no. 2 (2009): 109–16. http://dx.doi.org/10.19206/ce-117195.

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The paper presents experimental results concerning the fueling of two injection systems for D.I. Diesel engines with Biodiesel fuels. The neat Biodiesel (B100) was obtained from waste vegetable oil (collected from a local branch of McDonald’s), using the base catalyzed method; diesel fuel was also used in order to test the injection equipments and obtain reference values. The fuel injection pumps used during the tests were RO-PES4A90D410RS2240 (romanian) and a Bosch type one (PES5MW55/320/RS/120403), with the corresponding high pressure fuel lines and injectors. The injection equipment was mou
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17

Dodge, L. G., T. J. Callahan, T. W. Ryan, J. A. Schwalb, C. E. Benson, and R. P. Wilson. "Injection Characteristics of Coal-Water Slurries in Medium-Speed Diesel Equipment." Journal of Engineering for Gas Turbines and Power 114, no. 3 (1992): 522–27. http://dx.doi.org/10.1115/1.2906620.

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The injection characteristics of several micronized coal-water slurries (CWSs, where “s” implies plural) were investigated at high injection pressures (40 to 140 MPa, or 6,000 to 20,000 psi). Detailed spray characteristics including drop-size distributions and cone angles were measured using a continuous, high-pressure injection system spraying through various hole shapes and sizes into a continuous, elevated-pressure air flow. Penetration and cone angle were also measured using intermittent injection into an elevated-pressure quiescent chamber. Cone angles and fuel-air mixing increased rapidl
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18

Liang, Chao, Ya Xu Chu, and Jian Zhang. "The Research of Fuel Pressure Fluctuations within Diesel Injection Pump Cavity on Cam Shaft Rotate Speed." Applied Mechanics and Materials 494-495 (February 2014): 436–39. http://dx.doi.org/10.4028/www.scientific.net/amm.494-495.436.

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Fuel pressure fluctuations in a diesel injection pump cavity can affect the injection quantity balance. Among them, the injection pump rotational speed is a major factor affecting fuel pump fuel pressure fluctuations within the cavity. This article through the use of HYDSIM software for different speeds of volatility in fuel injection pump cavity pressures for Simulation.
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19

Dhanamurugan, A., and R. Subramanian. "Performance and Emission Characteristics of a Diesel Engine with Various Injection Pressures Using Bael Biodiesel." Applied Mechanics and Materials 592-594 (July 2014): 1714–18. http://dx.doi.org/10.4028/www.scientific.net/amm.592-594.1714.

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Fuel injection pressures in diesel engines play an important role to distribute the fuel jet quickly and to form a uniform gas mixture after fuel injection in order to reduce fuel consumption and emissions. In this study, an attempt has been made to study the effect of injection pressure on a single cylinder direct injection diesel engine fueled with diesel, diesel – bael biodiesel blend (B20) and methyl ester of bael (Aegle marmelos) seed oil with injection pressures of 220,230,240 and 250 bar. Increasing the injector opening pressure has been found to increase brake thermal efficiency and re
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20

Jeftić, Marko, Zhenyi Yang, Graham T. Reader, and Ming Zheng. "Fuel efficiency analysis and peak pressure rise rate improvement for neat n-butanol injection strategies." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 231, no. 1 (2016): 50–65. http://dx.doi.org/10.1177/0954407016632141.

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Engine tests were conducted to investigate the efficiency and the peak pressure rise rate performance of different fuel injection strategies for the direct injection of neat n-butanol in a compression ignition engine. Three different strategies were tested: a single-shot injection; a pilot injection; a post-injection. A single-shot injection timing sweep revealed that early injections had the highest indicated efficiency while late injections reduced the peak pressure rise rate at the cost of a slightly reduced thermal efficiency. Delayed single-shot injections also had increased emissions of
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21

Zhao, Jianhui, Leonid Grekhov, Alexander Denisov, and Dmitry Onishchenko. "Operation-related features of diesel fuel injection systems at pressures up to 400 MPa." IOP Conference Series: Earth and Environmental Science 983, no. 1 (2022): 012058. http://dx.doi.org/10.1088/1755-1315/983/1/012058.

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Abstract The interest in the high pressure injection in diesel engines continues to grow. Optimal injection pressure is a function of the engine parameters and its application and is open to question. The study investigates the injection features of diesel fuel at pressures above 300-400 MPa. The injection pressure level, at which the fuel flow through the nozzle ceases to grow, was experimentally determined, and an improved simulation method for the heavy fuel injection modelling was proposed.
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22

Aalam, C. Syed. "Effect of Fuel Injection Pressure on Spray Characterization of Mahua Biodiesel Blend Using CRDI Injection System." International Journal for Research in Applied Science and Engineering Technology 10, no. 6 (2022): 2189–90. http://dx.doi.org/10.22214/ijraset.2022.44248.

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Abstract: In this study, the effect of fuel injection pressure on spray characterization of mahua biodiesel blend (B20) was visually analysed using CRDI fuel injection system. To analyse the spray characteristics, biodiesel blend fuel (B20) has injected at different injection pressures like 20, 30, 40and 50 MPa pressures. The fuel injection pressures and fuel injection durations were varied using electronic control module fitted with CRDI system. The spray structure of mahua biodiesel blend (B20) were recorded using a high-speed camera. For testing purpose one port of CRDI unit was connected w
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23

Jwa, Kyeonghun, Ardhika Setiawan, and Ocktaeck Lim. "Effect of Pilot Injection with Various Starts of Second Injection Command (SOIC2) and Fuel Injection Pressures on Gasoline Compression Ignition Combustion." International Journal of Energy Research 2023 (February 14, 2023): 1–14. http://dx.doi.org/10.1155/2023/2402918.

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This experimental study was conducted using a single-cylinder compression ignition (CI) engine with a pilot injection strategy to determine the effect of fuel injection pressure and the timing of the second start of injection (SOI2) on combustion and emission characteristics. This experiment used a mixture of 80% commercial gasoline (G80%) and 20% soybean biodiesel (B20%), by volume. The pilot injection strategy was applied with varying SOI2. Meanwhile, the first start of injection (SOI1) was constant at -350° ATDC and 900 bar fuel injection pressure. A range of fuel injection pressures from 4
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24

Zhai, Chang, Kuichun Li, Pengbo Dong, et al. "Experimental Study on the Spray Characteristics of Diesel and Hydrotreated Vegetable Oil (HVO) Fuels under Different Injection Pressures." Processes 12, no. 8 (2024): 1697. http://dx.doi.org/10.3390/pr12081697.

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This investigation employed the diffused back-illumination (DBI) technique to analyze the spray characteristics of hydrotreated vegetable oil (HVO) fuel at three injection pressures and compared them with conventional diesel fuel. The results showed that as the injection pressure increased, the peak injection rates of both the HVO and diesel increased. At injection pressures above 120 MPa, the injection rates of both fuels were nearly identical, though differences were observed at lower pressures. Increasing the injection pressure reduced the injection delay. The HVO fuel exhibited a shorter s
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25

WISŁOCKI, Krzysztof, Ireneusz PIELECHA, Jakub CZAJKA, and Dmitrij MASLENNIKOV. "The qualitative spray analysis of liquid fuel in high-pressure piezoelectric injection system." Combustion Engines 143, no. 4 (2010): 31–44. http://dx.doi.org/10.19206/ce-117129.

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The paper presents the methodology and tests results of the influence of the fuel injection pressure and combustion chamber back pressure on the changes of the fuel spray geometrical parameters injection uniformity and its quality during the injection. While evaluating the geometrical fuel spray parameters the spray penetration, speed of propagation were taken into account and while evaluating the quality of the fuel atomization the outflow of the fuel from the injector were considered. The tests reported here were performed for one value of the air back pressure at the various injection press
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26

Zahari, Nuraqilah, Bukhari Manshoor, Mohamad Hafizuddin Roslan, et al. "Simulation of Liquid NH3 Spray Characteristics for Gasoline Direct Injection (GDI) under Engine-Relevant Conditions." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 126, no. 2 (2025): 62–72. https://doi.org/10.37934/arfmts.126.2.6272.

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Fuel/air mixing characteristics of liquid ammonia under direct injection engines have gained significant attention in the automotive industry due to their potential for improving fuel efficiency and reducing emissions. This study employed a simulation approach to investigate the spray characteristics of liquid ammonia for Gasoline Direct Injection (GDI) under Engine-Relevant Conditions. Conversely, lower injection pressures resulted in shorter spray penetration due to reduced fuel momentum and weaker atomisation. The main variable in this study is injection pressure, which is 50 bar, 80 bar an
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27

Khalid, Amir, Azwan Sapit, M. N. Anuar, et al. "Analysis of Fuel Injection Parameter on Biodiesel and Diesel Spray Characteristics Using Common Rail System." Advanced Materials Research 974 (June 2014): 362–66. http://dx.doi.org/10.4028/www.scientific.net/amr.974.362.

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Precise control of fuel injection is essential in modern diesel engines especially in controlling the precise injection quantity, flexible injection timing, flexible rate of injection with multiple injections and high injection pressures. It was known that the fuel-air mixing is mainly influenced by the fuel injection system and injector nozzle characteristics. Thus, mixture formation during ignition process associated with the exhaust emissions. The purpose of this study is to investigate the influence of spray characteristics on the mixture formation. In this study, common rail injector syst
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28

Armas, Octavio, Carmen Mata, and Simon Martínez-Martínez. "Effect of diesel injection parameters on instantaneous fuel delivery using a solenoidoperated injector with different fuels." Revista Facultad de Ingeniería Universidad de Antioquia, no. 64 (October 2, 2012): 9–21. http://dx.doi.org/10.17533/udea.redin.13101.

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This work describes an experimental setup for obtaining pressure variation and rate of injection profiles per engine stroke. This study focuses on the following experimental parameters: flow meter's backpressure, injection pressure, and duration of the process. An IAV EVI-2-type flow meter is used to measure the rate of injection. The work has been carried out using a common rail system with a solenoid-operated injector. As result, time proÆ les of: current intensity throughout the injector (electric pulse), pressure variation in flow meter (p) and the rate of injection are presented. The stu
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29

Lee, H.-K., M. F. Russell, C. S. Bae, and H. D. Shin. "Development of cavitation and enhanced injector models for diesel fuel injection system simulation." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 216, no. 7 (2002): 607–18. http://dx.doi.org/10.1243/095440702760178622.

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To expedite the application of fuel injection equipment to diesel engines, powertrain engineers are simulating the rate of injection with computer models. Many of the simple models give quite substantial errors if fuel cavitation in the high pressure system and the variations in bulk modulus with temperature and pressure are not included. This paper discuses cavitation and a companion paper discusses the treatment of non-linear bulk modulus. Diesel fuel injection nozzle hole size has been reduced and the injection pressures have been raised, to improve combustion, and the termination of the in
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30

Zhang, Xiao Ming, Feng Xu, Jian Min Liu, and Fu Zhou Feng. "Filtering Design and Analysis of Clamp-On Pressure Signals of High Pressure Fuel Pipe." Advanced Materials Research 834-836 (October 2013): 891–95. http://dx.doi.org/10.4028/www.scientific.net/amr.834-836.891.

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Measuring the clamp-on pressure of high pressure fuel pipe is a shortcut for obtaining injection parameters and fault diagnosis of the fuel injection pumps [1,. Based on the analysis of the fuel injection process of fuel injection pump, analyzed the differences of practical injection process and geometric injection process, and obtained the theory waveform feature points of diesel engine high pressure pipe fuel injection process. In order to obtain the clamp-on pressure waveform which feature points consistent with the theoretical waveform, designed the hardware filter based on MAX293. Conside
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31

Du, Bingxuan, and Zhenfeng Zhao. "Experimental Investigation on the Effects of Injection Parameters on the Air-Assisted Diesel Spray Characteristics." International Journal of Aerospace Engineering 2022 (February 28, 2022): 1–21. http://dx.doi.org/10.1155/2022/6814732.

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The air-assisted fuel injection (AAFI) system may be installed in the spark ignition aviation piston engine for the atomization of heavy fuels. However, studies on the effects of injection parameters on the spray characteristics are insufficient, which affects the improvement of AAFI engine performance. In this study, air-assisted diesel spray characteristics are investigated experimentally using a high-speed backlit imaging technique. The effects of main air-assisted injection control parameters such as fuel injection pressure, fuel temperature, and fuel injection duration on the spray charac
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32

Singh, Ripudaman, Taehoon Han, Mohammad Fatouraie, Andrew Mansfield, Margaret Wooldridge, and Andre Boehman. "Influence of fuel injection strategies on efficiency and particulate emissions of gasoline and ethanol blends in a turbocharged multi-cylinder direct injection engine." International Journal of Engine Research 22, no. 1 (2019): 152–64. http://dx.doi.org/10.1177/1468087419838393.

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The effects of a broad range of fuel injection strategies on thermal efficiency and engine-out emissions (CO, total hydrocarbons, NOx and particulate number) were studied for gasoline and ethanol fuel blends. A state-of-the-art production multi-cylinder turbocharged gasoline direct injection engine equipped with piezoelectric injectors was used to study fuels and fueling strategies not previously considered in the literature. A large parametric space was considered including up to four fuel injection events with variable injection timing and variable fuel mass in each injection event. Fuel ble
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33

Wang, Yang, Pengbo Dong, Wuqiang Long, et al. "Characteristics of Evaporating Spray for Direct Injection Methanol Engine: Comparison between Methanol and Diesel Spray." Processes 10, no. 6 (2022): 1132. http://dx.doi.org/10.3390/pr10061132.

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In the context of global efforts to pursue carbon neutrality, the research on the application technology of methanol fuel in internal combustion engines has ushered in a new peak. In order to provide a theoretical basis for the development of direct injection methanol engines, the spray characteristics of methanol with high-pressure direct injection were studied. Based on the visualization experimental device of constant volume vessels, the diffused background-illumination extinction imaging (DBI) and schlieren methods were applied to examine the distinctions in the evaporating spray propertie
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34

Liu, Zhenming, Nan Liu, and Jingbin Liu. "Study of the Influencing Factors on the Small-Quantity Fuel Injection of Piezoelectric Injector." Micromachines 13, no. 5 (2022): 813. http://dx.doi.org/10.3390/mi13050813.

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The piezoelectric injection-system provides a reliable approach for precise small-quantity fuel injection due to its fast, dynamic response. Considering the nonlinearity of a piezoelectric actuator, the complete electro-mechanical-hydraulic model of the piezoelectric injector was established and verified experimentally, which showed that it could accurately predict the fuel injection quantity. The small-quantity fuel injection with different driving voltages, pulse widths, and rail pressures was analyzed. The effects of key structural parameters of the injector on the delivery, control-chamber
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35

Lešnik, Luka, Breda Kegl, Eloísa Torres-Jiménez, Fernando Cruz-Peragón, Carmen Mata, and Ignacijo Biluš. "Effect of the In-Cylinder Back Pressure on the Injection Process and Fuel Flow Characteristics in a Common-Rail Diesel Injector Using GTL Fuel." Energies 14, no. 2 (2021): 452. http://dx.doi.org/10.3390/en14020452.

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The presented paper aims to study the influence of mineral diesel fuel and synthetic Gas-To-Liquid fuel (GTL) on the injection process, fuel flow conditions, and cavitation formation in a modern common-rail injector. First, the influence on injection characteristics was studied experimentally using an injection system test bench, and numerically using the one-dimensional computational program. Afterward, the influence of fuel properties on internal fuel flow was studied numerically using a computational program. The flow inside the injector was considered as multiphase flow and was calculated
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36

Bhikuning, Annisa. "The Simulation of Performance and Emissions from Rapeseed and Soybean Methyl Ester in Different Injection Pressures." Automotive Experiences 4, no. 3 (2021): 112–18. https://doi.org/10.31603/ae.4682.

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Biodiesel is one of the promising alternative fuels of the future that is environmentally friendly. Biodiesel can be produced from rapeseed, soybeans, coconut oil, jatropha and many others. It is important to analyze the effect of comparison between diesel fuel and biodiesel to study the effect of combustion and emissions of these fuels. In this research, the simulation of combustion and emission is done with Diesel RK. Three fuels are studied; diesel fuel, rapeseed methyl ester (RME) and soybean methyl ester (SME). The engine was simulated at 2000 rpm and the injection pressures were 944, 119
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37

Sechenyh, Vitaliy, Daniel J. Duke, Andrew B. Swantek, et al. "Quantitative analysis of dribble volumes and rates using three-dimensional reconstruction of X-ray and diffused back-illumination images of diesel sprays." International Journal of Engine Research 21, no. 1 (2019): 43–54. http://dx.doi.org/10.1177/1468087419860955.

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Post-injection fuel dribble is known to lead to incomplete atomisation and combustion due to the release of slow-moving, and often surface-bound, liquid fuel after the end of injection. This can have a negative effect on engine emissions, performance and injector durability. To better quantify this phenomenon, we developed an image-processing approach to measure the volume of ligaments produced during the end of injection. We applied our processing approach to an Engine Combustion Network ‘Spray B’ 3-hole injector, using datasets from 220 injections generated by different research groups, to d
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38

Li, Pimao, Youtong Zhang, Tieshuan Li, and Lizhe Xie. "Elimination of fuel pressure fluctuation and multi-injection fuel mass deviation of high pressure common-rail fuel injection system." Chinese Journal of Mechanical Engineering 28, no. 2 (2015): 294–306. http://dx.doi.org/10.3901/cjme.2014.1216.180.

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39

Sang, Hai Lang, Guang Zhao Yue, Zhi Hua Lv, et al. "Study of Diagnosis Algorithm for Coherence of Fuel Injection of High-Pressure Common Rail Fuel System." Applied Mechanics and Materials 229-231 (November 2012): 648–51. http://dx.doi.org/10.4028/www.scientific.net/amm.229-231.648.

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This paper analyzes the relationship between fuel rail pressure and fuel injection amount and presents a diagnosis algorithm for coherence of injection in cylinders based on the fuel rail pressure. A simplified model of common-rail fuel system in multi-cylinder diesel engine was built and basic analysis was completed based on this model. The analysis induced that the rail pressure drop dp/dt is mainly relevant with QInj. The experimental investigation of common-rail fuel system shows the pressure drop happens during the fuel injection period, which is induced by fuel injection. Both model anal
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Li, Ming Hai, Biao Liu, and You Bo Ning. "Analysis on Effects of Fuel Cam on High-Pressure Fuel System." Advanced Materials Research 328-330 (September 2011): 948–52. http://dx.doi.org/10.4028/www.scientific.net/amr.328-330.948.

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GT-Suite software is used to establish the simulation model of high-pressure fuel injection system for diesel engine. Simulation parameters are modified based on the comparison with given experimental results. In order to improve diesel engine fuel injection performance, the cam profile was improved to ensure a high injection pressure and smooth operating characteristics. A more reasonable fuel cam profile was designed by analyzing the injection characteristics and dynamics. It improves the fuel mixture formation and combustion, so diesel economy and emissions performance are also guaranteed.
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41

Wang, T. C., J. S. Han, X. B. Xie, et al. "Parametric Characterization of High-Pressure Diesel Fuel Injection Systems." Journal of Engineering for Gas Turbines and Power 125, no. 2 (2003): 412–26. http://dx.doi.org/10.1115/1.1498268.

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The focus of the study described herein is the characterization of the high-pressure hydraulic electronic unit injector (HEUI) and of the electronic unit injector (EUI) diesel injection systems. The characterization items include injection pressure, injection rate, injector response time, needle lift, start up injection transient, and dynamic discharge coefficient of the nozzles. Macroscopic and microscopic spray visualizations were also performed. The effects of injection conditions and nozzle configurations on injection characteristics were reviewed. Nozzle sac pressure was measured to corre
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Lei, Yun Hong, Xiao Jie Song, Wen Gang Chen, and Wei Liu. "PXI-Based High Performance Data Acquisition System for Fuel Injection System of Diesel Engine." Advanced Materials Research 433-440 (January 2012): 3837–40. http://dx.doi.org/10.4028/www.scientific.net/amr.433-440.3837.

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High-performance data acquisition system is designed on the foundation of studying the working principle of diesel engine fuel injection system and analyzing the characteristics of fuel injection pressure waveform. The fuel injection pressure waveform can be accurately captured by the data acquisition system which based on embedded pressure sensors and NI PXI-6143 multifunction data acquisition card, and then the fuel injection opening pressure and the maximum injection pressure can be calculated. Fuel supply advance angle can be obtained by comparing the injection pressure waveform and the to
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43

Xu, Dan, Qing Yang, Xiaodong An, Baigang Sun, Dongwei Wu, and Zhihao Zhang. "Experimental investigation of dwell time characteristics in high-pressure double-solenoid-valve fuel injection system." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 233, no. 13 (2019): 3281–92. http://dx.doi.org/10.1177/0954407018822423.

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The double-solenoid-valve fuel injection system consists of an electronic unit pump and an electronic injector. It can realize the separate control of fuel supply and injection and has the advantages of adjusting pressure by cycle and flexible controlling of the injection rate. The interval angle between the pilot and main injection directly affects the action degree and the characteristics of two adjacent injections, affecting engine performance. This work realizes multiple injection processes on the test platform of a high-pressure double-solenoid-valve fuel injection system, with maximum in
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44

Nhad K. Frhan Al-Abboodi. "The Combined Effect of the Piston Bowl Geometry and Injection Fuel Pressure on the Compression Ignition Engine Characteristics." CFD Letters 14, no. 8 (2022): 43–62. http://dx.doi.org/10.37934/cfdl.14.8.4362.

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In this study, the combined effect of the piston bowl geometry and fuel injection pressures on combustion, performance and emission characteristics of compression ignition (CI) engine fueled with baseline Diesel (D100) and microalgae-biodiesel (MA100) was studied. In this paper, the comparison study for the two different piston bowl geometry, namely: hemispherical combustion chamber (HCC) and toroidal re-entrant combustion chamber (TRCC), was carried out with the various fuel injection pressures (200-240 bar) performed. A single-cylinder, direct injection, and four strokes were chosen to simul
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45

Nishiguchi, Hironobu, Masatoshi Kodera, and Sadatake Tomioka. "Effects of the Fuel Species on the Combustion Pressure in a Two Staged Fueled Scramjet Combustor." Aerospace 12, no. 1 (2025): 66. https://doi.org/10.3390/aerospace12010066.

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Two-staged fuel injection configuration for scramjet combustors has been shown to be effective in distributing heat release in the combustor for preventing the unstart transition of the engine by suppressing peak pressure while increasing the pressure thrust. In this study, the effect of fuel species on combustion characteristics in a two-staged fueled scramjet combustor was investigated. Wall pressure measurements in a two-staged fueled scramjet combustor were conducted in a combustion wind tunnel facility with fuels having different reactivity, such as H2 and CH4. Reynolds-Averaged Navier–St
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Chau, Vo Tan, Tran Dang Long, Huynh Ba Vang, Nguyen Minh Hoang, Ngo Hong Phuc, and Nguyen Quoc Sy. "A STUDY ON THE INJECTION RATE CHARACTERISTICS OF THE SOLENOID COMMON-RAIL INJECTOR UNDER USING A HIGH-PRESSURE FUEL SYSTEM." Jurnal Teknologi 85, no. 3 (2023): 25–33. http://dx.doi.org/10.11113/jurnalteknologi.v85.19106.

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The combustion of diesel engines is mainly controlled by fuel injection. Determining the fuel injection flow rate combined with the common-rail fuel injection system is a key solution to effectively improve engine performance and exhaust emissions. This work aims to investigate the influence of high injection pressures with a 6-holes-solenoid common rail injector on the injection rate characteristics in the range of 400 bar to 1600 bar, and a constant injector energizing time of 1.5 ms. The injection rate characteristics were carried out based on the pressure difference in the Zuech measuring
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Qaisar, Hayat, Li Yun Fan, Bing Qi Tian, and Zhen Ma Xiu. "Numerical Modeling and Simulation of Pressure Wave in Combination Electronic Unit Pump High Pressure Pipeline." Advanced Materials Research 805-806 (September 2013): 1823–26. http://dx.doi.org/10.4028/www.scientific.net/amr.805-806.1823.

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High pressure (HP) fuel pipeline is one of the major components of Combination Electronic Unit Pump (CEUP) diesel fuel injection system and has significant contribution in building up of high pressure required during fuel injection cycle. A MATLAB numerical model of pressure wave inside HP fuel pipeline of CEUP system using damped wave equation has been developed in MATLAB to study and simulate pressure wave propagation through fuel pipeline at various operating conditions of diesel engine. Finite Difference method has been applied to model and simulate pressure equation at various equidistant
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48

Chistyakov, A. Yu, G. B. Gorelik, and O. N. Mozolev. "Modeling the processes of fuel supply during the operation of marine diesel engine using water-fuel emulsion." Transactions of the Krylov State Research Centre S-I, no. 1 (2021): 152–54. http://dx.doi.org/10.24937/2542-2324-2021-1-s-i-152-154.

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The article presents the results of the mathematical modeling of marine diesel’s fuel supply processes during the screw characteristic while using diesel fuel and water-fuel emulsion with 30% water content as alternative fuel. As a result of the research, the features of the fuel supply processes and the effect of alternative fuel on the serial fuel equipment injection characteristics during operation in nominal and partial modes were identified. Considering the quality of fuel equipment operation the following features were taken into account, they are: changing fuel supply characteristics; f
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49

Nikolic, Boban, Breda Kegl, Sasa Markovic, and Melanija Mitrovic. "Determining the speed of sound, density and bulk modulus of rapeseed oil, biodiesel and diesel fuel." Thermal Science 16, suppl. 2 (2012): 505–14. http://dx.doi.org/10.2298/tsci120426187n.

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Modern tendencies in the development of diesel engines include the operation of the system for injecting diesel fuel at pressures higher than 100 MPa. Knowing the characteristics of liquid fuels such as speed of sound, bulk modulus and density depending on pressure, is important for predicting the behavior of fuel injection systems for diesel engines and optimization of the same. The paper presents an original method and apparatus (device) for determining the speed of sound and density of fluids depending on the pressures. With this method, values of these characteristics for rapeseed oil, bio
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Tsai, Wen Chang, and Zong Hua Wu. "Use of Taguchi Method to Optimize the Operating Parameters of a High-Pressure Injector Driving Circuit." Applied Mechanics and Materials 130-134 (October 2011): 2795–99. http://dx.doi.org/10.4028/www.scientific.net/amm.130-134.2795.

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This paper develops a superior injector driving circuit for a 500c.c. motorcycle GDI engine. The POWER MOSFET component is introduced in the design of the three-pulse injector driving circuit. Experiments for the designed electric driving circuit are investigated to verify its feasibility. The experiments of the H.P. injector driving circuit are conducted for the fuel injection quantity of the H.P. injector under 80~100 bar fuel pressure, 1200~2000 μs injection pulse duration and DC 55~65V power supply voltage. PWM control is introduced to the last pulse 3A holding current for fast cut-off res
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