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Journal articles on the topic 'Pump components'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Liu, De Hui, Li Wen Liu, Gang Tang, Hong Min Wen, and Quan Guo Lu. "A Design and Research on GMM Precision Flow Pump." Applied Mechanics and Materials 602-605 (August 2014): 117–21. http://dx.doi.org/10.4028/www.scientific.net/amm.602-605.117.

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A new type of the precision flow pump is developed with the giant magnetostrictive materials as the driving source. Experiment has been conducted to test the performance of the pump with designed key components. The pump as the preloading mechanism, adopting an elastomer instead of a spring, not only simplifies the structure, but also improves the performance of the pump. A design is also made to some key components such as the giant magnetostrictive rod and driving coil. The result of experiment shows that the pump flow resolution records 1 ml/min~400ml/min and the maximum output pressure 0.6

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2

Rifai, Moh Sahal, Nanang Ruhyat, and Arief Surachman. "Performance Analysis of Centrifugal Pumps Before and After Wear Ring Restoration." International Journal of Innovation in Mechanical Engineering and Advanced Materials 7, no. 1 (2025): 43. https://doi.org/10.22441/ijimeam.v7i1.30324.

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A pump is a mechanical device used to move fluids from a lower elevation to a higher one. In general, pumps are classified into two types: positive displacement pumps and non-positive displacement pumps. Centrifugal pumps fall into the latter category and operate by converting mechanical energy into kinetic energy to transport fluids. A centrifugal pump consists of several key components, including the casing, shaft, bearing, coupling, and impeller. In the case of closed impeller-type centrifugal pumps, wear rings (wearing components) are installed to provide a clearance between the impeller a

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3

Rylski, Adam, and Krzysztof Siczek. "Study on the Operating Conditions of Micropump Components." Advanced Materials Research 1051 (October 2014): 813–18. http://dx.doi.org/10.4028/www.scientific.net/amr.1051.813.

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The micropumps driven by AC, DC brush, DC brushless or stepper motors can be used in pharmaceutical industry. The particular property of such pumps is magnet coupling between motor and pump. The aim of the analysis has been to investigate the operating conditions for bearing in such pump during flow of water, oil and glycerin – water solution and to investigate the dependency of the glycerin – water solution flow upon the outlet – inlet pressure difference and upon the speed of motor driving pump. It has been also investigated the possibility of application for NdFeB – NdFeB magnet assembly in

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4

Hong, Shunjun, and Xiaozhou Hu. "Study on the Non-Steady-State Wear Characteristics and Test of the Flow Passage Components of Deep-Sea Mining Pumps." Applied Sciences 12, no. 2 (2022): 782. http://dx.doi.org/10.3390/app12020782.

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In the process of conveying coarse-grained minerals, the internal flow-through passage components of mining pumps are subject to wear. The flow of coarse particles in such pumps is complex and changes constantly, making it necessary to study the non-steady-state wear characteristics and test the flow passage components. The evolution of the surface wear rate for the flow passage components during one third of a rotation cycle (120°) of a mining pump impeller with small, design, and large flow rates was analyzed in this study based on a discrete phase model (DPM). The flow that occurs during an

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5

Hong, Shunjun, and Xiaozhou Hu. "Experimental Study and Analysis on Wear Characteristics of Mining Pumps Transporting Solid-Liquid Two-Phase Flows." Applied Sciences 14, no. 13 (2024): 5634. http://dx.doi.org/10.3390/app14135634.

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The use of mining pumps to transport solid-liquid two-phase flows results in solid particles causing varying degrees of wear in the flow-passing components of the pump. In this study, a computational fluid dynamics analysis was performed employing SST k-ω turbulence and discrete phase models to predict the wear characteristics of small two-stage mining pumps. The wear rates of the flow-passing components (first- and second-stage impellers and guide vanes) of the pump were simulated considering three solid-particle sizes under three flow conditions (low flow, rated flow, and high flow), with th

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6

Majdan, Radoslav, Zdenko Tkáč, Rudolf Abrahám, Bohuslav Stančík, Milena Kureková, and Radoslav Paulenka. "Effect of Ecological Oils on the Quality of Materials of Hydraulic Pump Components." Advanced Materials Research 801 (September 2013): 1–6. http://dx.doi.org/10.4028/www.scientific.net/amr.801.1.

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This paper presents the effect of three oil types on the quality of hydraulic pumps after testing on a special test bench. The quality of material of hydraulic pump components was evaluated on the basis of its wear. In the special test bench, hydraulic pumps were loaded by cyclic pressure with different oil types. There were tested a mineral oil-based liquid HV and two biodegradable types, i.e. a vegetable oil-based liquid HETG and polyalphaolefin oil-based liquid HEPR. The wear level of hydraulic pumps was evaluated on the basis of flow efficiency and the weight and roughness of internal comp

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7

Alhamidiy, Abdillah Nur, Ali Masduqi, Bustami Bustami, and Bagas Wahyu Adhi. "STUDI OPTIMASI POMPA DISTRIBUSI SPAM KOTA PALANGKA RAYA UNTUK EFISIENSI ENERGI." Jurnal Teknik Sipil Giratory UPGRIS 1, no. 1 (2024): 47–55. http://dx.doi.org/10.26877/giratory.v1i1.19460.

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SPAM of Palangka Raya City has a distribution unit which is powered by six pumps but only two pumps are functioning due to frequent damage to the pumps. The pumps that function is Pump III and Pump V. This research aims to evaluate pump efficiency and specific energy consumption (SEC) so that technical recommendations for optimizing existing distribution pumps are known. Pump III is installed with a VSD with a SEC value of 0.14 KWh/m3 with a pump efficiency of 70.41% so it does not require minor or major repairs but requires a new backup pump because it works 24 hours while Pump V has a SEC of

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8

Zindani, Divya, Apurba Kumar Roy, and Kaushik Kumar. "Vibration Analysis of Mixed Flow Pump Impeller Blade Designed Using Mean Stream Line Method." Applied Mechanics and Materials 852 (September 2016): 476–82. http://dx.doi.org/10.4028/www.scientific.net/amm.852.476.

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Mixed flow pumps applications have been exploited in a large number of diversified fields of engineering. They find applications as an important component in waste water treatment systems, power stations, irrigation systems etc. User requirements make these pumps to work very close to the functioning requirements and therefore under these conditions the vibrations are bound to occur in different moving components of the pump. It would be difficult to analyse the pump vibrations, considering the pump as a single system. Analysing vibrations in different moving components of the pump will not on

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9

Cunningham, Peter. "Lining pump components with fluoroplastics." World Pumps 2004, no. 458 (2004): 44–47. http://dx.doi.org/10.1016/s0262-1762(04)00397-9.

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10

O'Hara, Peter. "Material improvements in pump components." World Pumps 1996, no. 361 (1996): 44–48. http://dx.doi.org/10.1016/s0262-1762(99)81246-2.

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11

Akhmedpashaev, M. M., M. U. Akhmedpashaev, and Zh B. Begov. "Life of Submersible-Pump Components." Russian Engineering Research 38, no. 10 (2018): 752–54. http://dx.doi.org/10.3103/s1068798x18100039.

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12

Ainul Bashir, Nur Azmi, Restiadi Bayu Taruno, Yana Hendriana, and Labibah Zahrotul Hasanah. "The Implementation of a Smart Energy System with IoT Concept for River Water Distribution Pumps in Rainfed Agricultural Areas." International Journal of Artificial Intelligence & Robotics (IJAIR) 6, no. 2 (2024): 65–74. https://doi.org/10.25139/ijair.v6i2.9027.

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Water pumps for irrigating rainfed rice fields are typically located near or at the edge of rivers, for example, in several locations in Bulakelor and Luwunggede, Brebes Regency villages. Similar situations are found in some rice fields in Sendangadi, Mlati, Sleman, and Piyungan, Bantul, where irrigation pumps are near or at the edge of rivers. According to residents, this reduces the suction power needed. Unfortunately, this also affects the terrain, making it damp and the roads muddy and even slippery, which makes the journey to the pump location difficult and risky, like slipping into a riv

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13

Zariatin, Dede Lia, and Agri Suwandi. "Advanced design of a small-scale mini gerotor pump in a high-temperature and high-viscosity fluid thermal system." Eastern-European Journal of Enterprise Technologies 1, no. 8 (121) (2023): 30–39. http://dx.doi.org/10.15587/1729-4061.2023.272674.

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In this research, the development of a small-scale heat transfer gerotor pump with an advanced arrangement for high-viscosity and high-temperature fluids is described comprehensively. The small-scale pump design aims to meet the needs of modular components for industry and research, especially for small-scale heat transfer applications such as residential heating systems. VDI 2221 approach was used to construct an advanced gerotor pump with an internal reservoir unit that can generate additional pressure and minimize the slip factor, thereby increasing its volumetric efficiency. The developed

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14

Fakher, Sherif, Abdelaziz Khlaifat, M. Enamul Hossain, and Hashim Nameer. "A comprehensive review of sucker rod pumps’ components, diagnostics, mathematical models, and common failures and mitigations." Journal of Petroleum Exploration and Production Technology 11, no. 10 (2021): 3815–39. http://dx.doi.org/10.1007/s13202-021-01270-7.

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AbstractIn many oil reservoirs worldwide, the downhole pressure does not have the ability to lift the produced fluids to the surface. In order to produce these fluids, pumps are used to artificially lift the fluids; this method is referred to as artificial lift. More than seventy percent of all currently producing oil wells are being produced by artificial lift methods. One of the most applied artificial lift methods is sucker rod pump. Sucker rod pumps are considered a well-established technology in the oil and gas industry and thus are easy to apply, very common worldwide, and low in capital

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15

Ağır, İsmail. "Designing a Cost-Efficient Belt-Driven 3D-Printed Syringe Pump." Afyon Kocatepe University Journal of Sciences and Engineering 24, no. 3 (2024): 749–57. http://dx.doi.org/10.35414/akufemubid.1400218.

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In biotechnology, biomedicine, and bioengineering research, precise liquid transfer and control are essential. Laboratories depend on diverse pumps and fluid control systems, with syringe pumps emerging as a preferred option due to their compatibility with biological fluids. Due to the high cost and limited customization options in existing commercial syringe pumps, researchers have begun designing their own custom devices, utilizing the expanding 3D printing technology and open-source electronics. Nevertheless, 3D-printed pumps often integrate metal components such as lead screws and rods to

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16

Sanada, Cassia, and Osmay Oharriz. "Coating Technology for Pump Energy Savings." Materials Performance 56, no. 12 (2017): 40–44. https://doi.org/10.5006/mp2017_56_12-40.

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Pumps are essential to the daily operation of water and wastewater treatment plants. Premature failures of pump components can be caused by cavitation phenomena, erosion-corrosion, and other mechanisms. Rough and pitted surfaces increase friction, reduce pump efficiency, and lead to considerable operating costs. While conventional solutions cannot properly address the problems, modern coating technologies have proven to effectively protect pumps against erosion-corrosion while improving pumping efficiency.

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17

Tian, Ye, Chen Lu, and Zi Li Wang. "Approach for Hydraulic Pump Fault Diagnosis Based on WPT-SVD and SVM." Applied Mechanics and Materials 764-765 (May 2015): 191–97. http://dx.doi.org/10.4028/www.scientific.net/amm.764-765.191.

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As the failure of a hydraulic pump is always instantaneous, the failure data are difficult to obtain. High-efficiency fault diagnosis under small-sample conditions for hydraulic pumps is urgently required in engineering applications. A fault diagnosis approach based on wavelet packet transform (WPT), singular value decomposition (SVD), and support vector machine (SVM) is proposed in this study. First, the nonlinear, non-stationary vibration signal of the hydraulic pump is decomposed into components by WPT. Second, singular value vectors are acquired as feature vectors by applying SVD to the co

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18

Dede, Lia Zariatin, and Suwandi Agri. "Advanced design of a small-scale mini gerotor pump in a high-temperature and high-viscosity fluid thermal system." Eastern-European Journal of Enterprise Technologies 1, no. 8(121) (2023): 30–39. https://doi.org/10.15587/1729-4061.2023.272674.

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Abstract:

In this research, the development of a small-scale heat transfer gerotor pump with an advanced arrangement for high-viscosity and high-temperature fluids is described comprehensively. The small-scale pump design aims to meet the needs of modular components for industry and research, especially for small-scale heat transfer applications such as residential heating systems. VDI 2221 approach was used to construct an advanced gerotor pump with an internal reservoir unit that can generate additional pressure and minimize the slip factor, thereby increasing its volumetric efficiency. The devel

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19

Fabiś-Domagała, Joanna, Grzegorz Filo, Hassan Momeni, and Mariusz Domagała. "Instruments of identification of hydraulic components potential failures." MATEC Web of Conferences 183 (2018): 03008. http://dx.doi.org/10.1051/matecconf/201818303008.

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This paper presents an analysis of potential failures of hydraulic components on the example of a hydraulic gear pump with the use of instruments of quality management. The “five why” method was implemented to evaluate failures as well as the bases for the causes which have an influence on pumps failures. The causes are connected with operation condition of gear pumps and the quality of working fluid. In the next step, by using a systematic diagram, appropriate improvement actions for the identified causes were determined.

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20

Hasan, Saiful, Erpan Sahiri, Suprayitno Suprayitno, and Endin Tri Hartanto. "ANALYSIS OF DETERMINING CRITICAL COMPONENTS USING FMECA METHOD IN SEAWATER PUMP OF DIESEL GENERATOR CATERPILLAR 3412." JOURNAL ASRO 10, no. 3 (2019): 124. http://dx.doi.org/10.37875/asro.v10i3.170.

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The seawater pump on the Caterpillar 3412 Diesel Generator is one of the important component to make the Diesel generator can work well. This section serves to circulate seawater for the heat transfer process. The seawater pump is part of a cooling system of the engine which keeps the engine temperature from being too overheat. Seawater pumps with continuous operational conditions, resulting in reduced component reliability. This study applies the FMECA method to identify opportunities for failure at the seawater pump. From the calculation of FMECA, it is obtained an assessment of the level of

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21

Sevda Agammadova, Jamal Mammadov, Sevda Agammadova, Jamal Mammadov, and Rashad Orujov Rashad Orujov. "INVESTIGATING CAVITATION PHENOMENON IN EXTERNAL GEAR PUMPS." ETM - Equipment, Technologies, Materials 20, no. 02 (2024): 61–68. http://dx.doi.org/10.36962/etm20022024-61.

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External gear pumps find widespread application across various industries owing to their simplicity, efficiency, and reliability in fluid transfer tasks. However, cavitation poses a significant challenge to these pumps, potentially impairing their performance and leading to premature failure. This article delves into innovative approaches for mitigating cavitation effects, with a specific focus on material selection and surface coatings. By harnessing advanced materials and coatings, enhanced durability of pump components can be achieved, minimizing cavitation-induced damage and ultimately imp

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22

Li, Qingyu, Laiyi Jing, Qunying Sun, Li Ji, and Songying Chen. "The finite element modeling of the impacting process of hard particles on pump components." Open Physics 20, no. 1 (2022): 596–608. http://dx.doi.org/10.1515/phys-2022-0048.

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Abstract Shield pumps which transport a variety of complex media are widely used in chemical industry, mineral industry, and other fields. However, the hard particles in the media erode the flow passage in the shield pump, seriously affecting the service life of the pump. Therefore, it is important to study the erosion process in the flow passage to extend the service life of the pump. This erosion process in the shield pump can be investigated by experiments, but it is difficult for the current experimental method to copy the real industrial service environment of impellers. For example, the

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23

Hong, Shunjun, and Xiaozhou Hu. "Research on Wear Characteristics and Experiment on Internal Through-Passage Components for a New Type of Deep-Sea Mining Pump." Processes 10, no. 1 (2021): 58. http://dx.doi.org/10.3390/pr10010058.

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The conveyor electric pump for deep-sea mining is a key piece of equipment in deep-sea mineral transportation systems, as its flow capacity and wear resistance affect the reliability of the entire system. In this study, aimed at solving problems such as mining pumps being prone to clogging and wear, which could lead to performance degradation, a mining pump with wide flow paths and high performance was designed, and hydraulic performance tests were conducted on the new pump. The test results obtained were in good agreement with the numerical simulation results. Based on the reliability of the

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24

Mevada, Shraddha A., and Amit Bhuptani. "Performance Enhancement in Submersible Pump Impellers: Design and Optimization Approaches." International Journal for Research in Applied Science and Engineering Technology 12, no. 5 (2024): 77–80. http://dx.doi.org/10.22214/ijraset.2024.61437.

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Abstract: Submersible pumps are essential components in various industries, including water supply, wastewater management, and oil extraction. Their efficiency and reliability are crucial for ensuring consistent fluid transport. At the core of submersible pumps lies the impeller, which directly influences pump performance. This paper examines advanced design and optimization approaches to enhance the performance of submersible pump impellers. By analyzing key factors such as blade geometry, material selection, and impeller design parameters, we explore methods to improve hydraulic performance,

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25

Kauranne, Heikki. "Effect of Operating Parameters on Efficiency of Swash-Plate Type Axial Piston Pump." Energies 15, no. 11 (2022): 4030. http://dx.doi.org/10.3390/en15114030.

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In an effort to improve the energy economics of hydraulic systems, attention should be paid to reducing power losses in two main entities, energy converting components, and energy controlling and conveying components. Achieving the former requires utilizing components’ most energy efficient operating range. The energy converting efficiency of a pump, which is the primary energy converter in a hydraulic system, is determined by several operational factors. Of these, only pressure and rotational speed are normally considered, but also the fluid temperature and derived capacity with variable disp

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26

Shi, Fengxia, Xuexue Zong, Guangbiao Zhao, Denghui Zhang, Pengcheng Wang, and Haonan Zhan. "Study on the Influence of Split Blades on the Force Characteristics and Fluid–Structure Coupling Characteristics of Pumps as Turbines." Energies 18, no. 7 (2025): 1642. https://doi.org/10.3390/en18071642.

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In order to study the influence of split blades on the turbine force characteristics and fluid–structure coupling characteristics of pumps, this paper selected the IS 80-50-315 centrifugal pump, used as a reverse-acting hydraulic turbine, as the research object, optimized the original pump-acting turbine impeller, and adopted different combinations of long and short blades. Based on the SIMPLE algorithm and RNG k–ε turbulence model, a complete three-dimensional unsteady numerical simulation was conducted on the internal flow field of the pump-turbine. The results show that the split blades red

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27

Ainley, Steven B., Ronald D. Flack, Klaus Brun, and Tony J. Rovello. "Laser Velocimeter Measurements in the Pump of an Automotive Torque Converter Part I – Effect of Speed Ratio." International Journal of Rotating Machinery 6, no. 3 (2000): 167–80. http://dx.doi.org/10.1155/s1023621x00000166.

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A torque converter was tested at four turbine/pump rotational speed ratios (0.200, 0.400, 0.600, and 0.800) all with a constant pump rotational speed in order to determine the effect of speed ratio on the torque converter pump flow field. Laser velocimetry was used to measure three components of velocity within the pump and a shaft encoder was employed to record the instantaneous pump angular position. Shaft encoder information was correlated with measured velocities to develop flow field blade-to-blade profiles and vector plots. Measurements were obtained in both the pump mid- and exit planes

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28

Baroiu, Nicușor, Virgil Gabriel Teodor, Viorel Păunoiu, Georgiana-Alexandra Moroșanu, and Ionaș-Cătălin Dumitrescu. "Reverse Engineering Used to Profile a Gerotor Pump Rotor." Applied Sciences 13, no. 19 (2023): 11069. http://dx.doi.org/10.3390/app131911069.

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In most situations, for the proper design of a gerotor pump, numerous parameters must be taken into account: the pump geometry, the properties of the materials from which the pumps are made (Young’s modulus, Poisson’s coefficient, friction coefficients, etc.), the hydraulic characteristics of the circulated fluids (fluid density, kinematic viscosity, etc.), the working performance of the pump (speed ranges, pressure, flow rate, etc.), with greater or lesser influence on volumetric efficiency, work capacity, or energy consumption. The paper presents a study regarding the inspection of the recip

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29

Chen, Zhengsu, Yaguang Heng, Qifeng Jiang, Tielin Liu, and Xipeng Luo. "Comparative analysis of internal flow characteristics and particle trajectories of centrifugal pumps with different impeller structures under solid-liquid two-phase flow conditions." Journal of Physics: Conference Series 2707, no. 1 (2024): 012039. http://dx.doi.org/10.1088/1742-6596/2707/1/012039.

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Abstract The disc pump is a non-conventional centrifugal pump that utilizes centrifugal force and boundary layer effects to transport fluids. This pump is widely used in industries such as petrochemicals. However, due to the presence of particles in the solid-liquid two-phase flow, it causes wear and performance degradation of the pump’s flow components. However, due to the presence of particles in the solid-liquid two-phase flow, it can cause wear and performance degradation of the pump components. To study the internal flow characteristics of solid-liquid flow and the particle trajectory in

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30

Wang, Cheng Long, Qing Liang Zeng, Guang Yu Zhou, and Sheng Gang Zhao. "Design and Realization of Automatic Testing System for Hydraulic Pump." Advanced Materials Research 189-193 (February 2011): 2727–30. http://dx.doi.org/10.4028/www.scientific.net/amr.189-193.2727.

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Based on the application analysis of hydraulic pump CAT test-bench, an automatic testing system of hydraulic pump CAT test-bench combined with technology of measurement and control was raised, including the detailed introduction of its work principle, components and software. By this testing system, tests of hydraulic pumps were realized automatically, accurately and efficiently.

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31

Sekret, Robert, and Anna Nitkiewicz. "Exergy analysis of the performance of low-temperature district heating system with geothermal heat pump." Archives of Thermodynamics 35, no. 1 (2014): 77–86. http://dx.doi.org/10.2478/aoter-2014-0005.

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Abstract Exergy analysis of low temperature geothermal heat plant with compressor and absorption heat pump was carried out. In these two concepts heat pumps are using geothermal water at 19.5 oC with spontaneous outflow 24 m3/h as a heat source. The research compares exergy efficiency and exergy destruction of considered systems and its components as well. For the purpose of analysis, the heating system was divided into five components: geothermal heat exchanger, heat pump, heat distribution, heat exchanger and electricity production and transportation. For considered systems the primary exerg

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32

Fuchiwaki, Masaki, Yoshitaka Naka, and Kazuhiro Tanaka. "Performance of a Micro Pump Driven by Conducting Polymer Soft Actuator Based on Polypyrrole." Advanced Materials Research 93-94 (January 2010): 615–18. http://dx.doi.org/10.4028/www.scientific.net/amr.93-94.615.

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Micro pumps are essential components of micro-fluidic systems and bio-sensing systems. In particular, the micro pump used for -TAS transports fluids at a micro flow rate with high precision. This micro pump is also used to transport high-viscosity fluids because there are various types of drugs to be transported. We developed a micro pump driven by a conducting polymer soft actuator that opens and closes. Although the developed micro pump contains no valve, the micro pump can transport fluids in one direction without backflow. A newly developed micro pump driven by a conducting polymer soft a

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33

SZLACHETKA, Marcin, Rafał SOCHACZEWSKI, and Michał GĘCA. "Experimental research of oil pump for a compression-ignition aircraft engine." Combustion Engines 179, no. 4 (2019): 142–46. http://dx.doi.org/10.19206/ce-2019-423.

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The paper presents an analysis of the constructions of oil pumps for an aircraft compression ignition engine. It is a two-stroke liquid-cooled engine with a power of 100 kW. The system has 3 cylinders and 6 opposed pistons. The paper estimates the required oil pump capacity to make the engine components well-lubricated. Next, automotive oil pumps for diesel engines are analyzed to select a correct pump for aircraft diesel engine applications. Three pump constructions of different constructions and dimensions of a rotor were selected. A measurement bench was designed and built to test these oil

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34

Eka Nur Wahid, Dede Fauzul Iman, and Repaldi Repaldi. "Rancang Bangun Pengembangan Sistem Pompa Galon Air Otomatis Dengan Sensor Infrared Untuk Efisiensi Penggunaan Air Minum." Jurnal Elektronika dan Teknik Informatika Terapan ( JENTIK ) 1, no. 4 (2023): 227–36. http://dx.doi.org/10.59061/jentik.v1i4.540.

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This study examines the automation of electric gallon pumps for drinking water. This automation involves replacing the manual button on the gallon pump with a sensor, which turns on the pump and dispenses drinking water when the glass gets closer without pressing the button. This tool can also be used for gallons of drinking water ranging in size from 5 liters, 10 liters, to 15 liters. The system is designed for practical applications, and all its components are tested to understand their respective functions so as to understand the type of module that suits their needs. Test results reveal th

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35

Chen, Yongchao, Guoming Chen, Chang Du, and Kang Liu. "Wear-Resistant Boronizing for 17-4PH Components of Fluid Pump." Metals 14, no. 9 (2024): 1072. http://dx.doi.org/10.3390/met14091072.

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The fluid pump was the key component of the formation tester; the pump cylinder, piston, and piston rod of the fluid pump often suffer from wear scratches and seal failure, which greatly reduces the service reliability of the instrument. To improve the wear resistance of the fluid pump, 17-4PH steel specimens were treated by boronizing at 750 °C for 20 h. Specimens with and without boronizing were studied by OM, SEM, XRD, microhardness test, and wear resistance test. Layers of about 60 μm thickness formed during boronization contain a mixture of FeB, CrB, and α(B)-Fe phases, which leads to a s

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36

GIL, Leszek, Piotr IGNACIUK, and Andrzej NIEWCZAS. "INVESTIGATION OF WEAR OF INJECTION SYSTEM COMPONENTS IN DIESEL ENGINE FUELED WITH VEGETABLE FUELS." Scientific Journal of the Military University of Land Forces 158, no. 4 (2010): 100–108. http://dx.doi.org/10.5604/01.3001.0002.2743.

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The paper presents the results of test-stand experiments of the pumping sections of the in-line injection pumps. The analysis included damage of the piston occurring when the pump was supplied with regular diesel fuel and methyl esters of linseed dodder. The research was conducted with MOTORPAL injection pumps used in the 4CT90 diesel automotive engine.

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A.T. Funmilayo and E. G. Saturday. "Cost effective maintenance strategy for centrifugal pumps using reliability centred maintenance." International Journal of Frontiers in Engineering and Technology Research 5, no. 2 (2023): 001–11. http://dx.doi.org/10.53294/ijfetr.2023.5.2.0031.

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The aim of this work is to obtain a maintenance strategy that is cost effective for centrifugal pumps using reliability centred maintenance (RCM). The components of the centrifugal pump used for the study are the shaft, impeller, bearing, mechanical seal, coupling, shaft sleeve, wear-ring casing, suction flange and discharge flange. The motor that drives the pump was also considered. Two basic tools of the RCM strategy were applied. These are the failure modes, effects and criticality analysis (FMECA) and logic tree analysis (LTA). Failure data for a period of 10 years about a centrifugal pump

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Lin, Yaolin, Zhenyan Bu, Wei Yang, Haisong Zhang, Valerie Francis, and Chun-Qing Li. "A Review on the Research and Development of Solar-Assisted Heat Pump for Buildings in China." Buildings 12, no. 9 (2022): 1435. http://dx.doi.org/10.3390/buildings12091435.

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The building sector accounts for over 40% of global energy consumption. The utilization of renewable energy systems such as the solar-assisted heat pump (SAHP) in buildings has been shown to improve building energy efficiency and achieve carbon neutrality. This paper presents a review of the research and development of solar-assisted heat pumps for buildings in China. It firstly introduces the different stages of solar-assisted heat pump research. Secondly, the research on different types of heat pumps, the core components of heat pumps, the computer software used, and the economic feasibility

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Brini, Marisa, Tito Calì, Denis Ottolini, and Ernesto Carafoli. "Calcium Pumps: Why So Many?" Comprehensive Physiology 2, no. 2 (2012): 1045–60. https://doi.org/10.1002/j.2040-4603.2012.tb00429.x.

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AbstractCa2+‐ATPases (pumps) are key to the regulation of Ca2+ in eukaryotic cells: nine are known today, belonging to three multigene families. The three endo(sarco)plasmic reticulum (SERCA) and the four plasma membrane (PMCA) pumps have been known for decades, the two Secretory Pathway Ca2+ ATPase (SPCA) pumps have only become known recently. The number of pump isoforms is further increased by alternative splicing processes. The three pump types share the basic features of the catalytic mechanism, but differ in a number of properties related to tissue distribution, regulation, and role in th

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Yohana, Eflita, Bachtiar Yusuf, Muhammad Arrafi Lazuardi, Mohamad Endy Julianto, and Vita Paramita. "Analysis of High Vibration Causing 211-P-25A Centrifugal Pump Damage in Hydrocraker Process." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 80, no. 2 (2021): 13–21. http://dx.doi.org/10.37934/arfmts.80.2.1321.

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The more developing technology enhances the need for energy; this requires the maximization of the performance of power plant components and energy. Refinery Unit (RU) is currently one of the real applications. Reliable equipment is required in running a massive industry. In running the oil production process at Refinery Unit (RU), the thing that needs to be put into consideration is pumps. A pump is a device for distributing fluids from one place to another. In Refinery Unit (RU), the pump is not only for oil but also for other fluids. In this research at Refinery Unit, the pump that is to be

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Farida, Nike Nur, Muhammad Sidqi Rozin Rabbani, and Nicko Nur R. "Effect of Engine Rotation on Mechanical Water Pump and Microcontroller-Based Electric Water Pump for Liquid-Cooled Motor Engine on Coolant Temperature." Jurnal Teknik Mesin 22, no. 1 (2025): 1–9. https://doi.org/10.9744/jtm.22.1.1-9.

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A liquid-cooled motor's cooling system is essential in maintaining engine performance. This study compares mechanical and electric water pumps based on microcontrollers to improve cooling efficiency. This study aims to measure the influence of the two types of pumps on engine temperature. This study uses an experimental method, installing the two types on machines with liquid cooling systems. In this study, thermostat components are also used. Measurements are made on the temperature of the coolant at various engine revolutions (RPM). The results showed that the electric water pump significant

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Liu, Hao, Hongyi Zhang, and Saqib Javed. "Long-Term Performance Measurement and Analysis of a Small-Scale Ground Source Heat Pump System." Energies 13, no. 17 (2020): 4527. http://dx.doi.org/10.3390/en13174527.

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Recent data suggest that heat pumps, despite having the potential to cover over 90% of the global space and water heating demands, only provide less than 5% of global heating. Heat pumps, in general, and ground source heat pumps, specifically, offer significant potential for energy savings and carbon emissions reduction in buildings. The realization of these potential benefits, however, requires proper design, installation, and operation of the entire heat pump system. This paper presents the performance analysis of a Swedish ground source heat pump system providing space heating and hot water

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Gruver, J. K., R. D. Flack, and K. Brun. "Laser Velocimeter Measurements in the Pump of an Automotive Torque Converter: Part I—Average Measurements." Journal of Turbomachinery 118, no. 3 (1996): 562–69. http://dx.doi.org/10.1115/1.2836703.

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A torque converter was tested for two turbine/pump rotational speed ratios, 0.065 and 0.800, and a laser velocimeter was used to measure three components of velocity within the pump. Shaft encoders were used to record the instantaneous pump angular position, which was correlated with the velocities. Average flow velocity profiles were obtained for the pump inlet, mid-, and exit planes. Large separation regions were seen in the mid- and exit planes of the pump for a speed ratio of 0.800. Strong counterclockwise secondary flows were observed in the midplane and strong clockwise secondary flows w

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El-Demerdash, Azza S., Shimaa A. Kamel, Eman Y. T. Elariny, et al. "Natural Inhibitors of Salmonella MDR Efflux Pumps AcrAB and AcrD: An Integrated In Silico, Molecular, and In Vitro Investigation." International Journal of Molecular Sciences 25, no. 23 (2024): 12949. https://doi.org/10.3390/ijms252312949.

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Multidrug-resistant (MDR) Salmonella remains a significant global health threat. This study aimed to explore the potential of essential oil components as novel inhibitors of the Salmonella MDR efflux pumps AcrAB and AcrD. Salmonella isolates were characterized for serotype, antibiotic resistance, and efflux pump activity. Essential oil components were screened for inhibitory effects using phenotypic and genotypic methods. In silico docking and molecular dynamics simulations were conducted to investigate binding interactions and stability. Salmonella Typhimurium was the predominant serotype wit

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Patel, Krishna, and Akif Ündar. "Centrifugal Pump Generates Superior Hemodynamic Performance Compared to a new Diagonal Blood Pump in Neonatal and Pediatric ECMO Circuits." World Journal for Pediatric and Congenital Heart Surgery 13, no. 2 (2022): 235–41. http://dx.doi.org/10.1177/21501351211057426.

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Purpose With newer generation diagonal and centrifugal blood pumps gaining popularity, the objective of this study was to compare the DP3-i-cor diagonal and RotaFlow centrifugal pumps in terms of hemodynamic performance using simulated neonatal and pediatric extracorporeal membrane oxygenation (ECMO) circuits. Description The DP3-i-cor diagonal pump is a part of the newly FDA-approved NovaLung system. The experimental circuit consisted of either the DP3-i-cor diagonal or RotaFlow centrifugal pump, a polymethylpentene membrane oxygenator, neonatal and pediatric arterial/venous cannulae, and 1/4

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Emzain, Zakki Fuadi, Zean Galang Wardhana, Satworo Adiwidodo, Siti Duratun Nasiqiati Rosady, Prasetyo Prasetyo, and Muhammad Andi Nova. "Implementation of Failure Mode and Effect Analysis (FMEA) for centrifugal pump maintenance in water supply distribution system." Jurnal Polimesin 22, no. 3 (2024): 295. http://dx.doi.org/10.30811/jpl.v22i3.4739.

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A centrifugal pump is an essential mechanical device in the Regional Drinking Water Company (PDAM) to distribute sterile water from the reservoir to local community houses by flowing the fluid through the pipeline. However, improper and inadequate maintenance of centrifugal pumps can result in component damage, including bearings that are broken, ripped, or damaged mechanical seals. Therefore, for the water supply to continue smoothly, proper maintenance needs to be carried out so that the engine's performance will be maintained and last longer. This study aims to conduct a maintenance analysi

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Newton, Haley S., Scott D. Niles, James Ploessl, and Wayne Richenbacher. "Electrostatic Potential Generated During Extracorporeal Pump Prime Circulation Before Cardiopulmonary Bypass Initiation." Journal of ExtraCorporeal Technology 39, no. 1 (2007): 39–42. http://dx.doi.org/10.1051/ject/200739039.

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The development of electrostatic potentials generated during cardiopulmonary bypass (CPB) procedures using polyvinylchloride (PVC) tubing in conjunction with roller pumps has been previously documented. The resulting damage from the electrostatic discharge (ESD) has been reported to affect gas transfer devices, but details of potential damage to electronic components commonly used during extracorporeal circulation have not been similarly described. The purpose of this study was to measure the ability of a triboelectric potential to be generated from a primed, circulating, adult CPB pump before

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Ratushnyak, Georgy, Katerina Anokhina, and Vyacheslav Datsyuk. "FEASIBILITY OF USING HEAT PUMPS IN ENERGYSUPPLY OF THERMOCATALYTIC REACTORS." Modern technology, materials and design in construction 33, no. 2 (2023): 198–202. http://dx.doi.org/10.31649/2311-1429-2022-2-198-202.

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Modern thermocatalytic rreactors for cleaning of gases must have high yield and to provide continuity of process. For the catalytic cleaning the different on a method co-operating is used with a catalyst and functional setting vehicles. For the increase of energy efficiency of thermocatalytic reactors it is expedient to apply alternative energy sources, in particular, heat-pumps. Taking into account advantages of heat-pumps, in particular, simplicity of editing, economy, automation, universality, compactness, quite, ecofriendlyness, reliability, longevity, a thermocatalytic reactor offers for

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Dewa Pascal Ariyanto, Panji Setyo Nugroho, Della Astri Widayani, et al. "Developing a Low-Cost Syringe Pump as a Support System for Electrospinning." Jurnal Nasional Teknik Elektro dan Teknologi Informasi 13, no. 3 (2024): 203–11. http://dx.doi.org/10.22146/jnteti.v13i3.12415.

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Electrospinning is one of the techniques used to fabricate nanofibers. The syringe pump is one of the main parts of electrospinning, responsible for injecting the solution into the chamber with high precision. The syringe pump has a simple operating system, but it has a high price on the market. Its high price has been one of the obstacles for research groups in the fabrication of nanofibers. Hence, this research aimed to solve the problem of expensive syringe pumps by developing a low-cost syringe pump using affordable components. This research utilized methods from a literature study of syri

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Adityawarman, Dzaky Fauzan Hilmy, Alvera Apridalianti Melkias, and Sapto Prayogo. "Perancangan Ulang Komponen Condensate Booster Pump pada System Re-Injeksi di PLTP X." Jurnal Surya Teknika 11, no. 1 (2024): 325–31. http://dx.doi.org/10.37859/jst.v11i1.7288.

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PLTP X is a power plant located in West Java, at this time PLTP X uses 2 condensate booster pumps that experience a discrepancy between the pump operation area specification and the actual condition. This problem causes vibration and decreased efficiency thus causing damage to the pump components. The purpose of this research itself is to design pump components in the form of impellers, shafts, pegs, & volutes. Another goal is to calculate the energy savings resulting from the design. This research has a quantitative and experimental nature. The data used is operational data of the PLTP X

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