Relevant bibliographies by topics / Hydraulic Oil Leakage

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Hydraulic Oil Leakage'

Author: Grafiati
Published: 7 June 2025
Last updated: 16 July 2025

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Journal articles on the topic "Hydraulic Oil Leakage"

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Mulyukov, D. R., D. R. Ardislamova, V. O. Bortsov, et al. "IMPACT OF LEAKAGE MODEL SELECTION ON HYDRAULIC FRACTURING DATA INTERPRETATION." Problems of Gathering Treatment and Transportation of Oil and Oil Products, no. 6 (December 19, 2024): 136–48. https://doi.org/10.17122/ntj-oil-2024-6-136-148.

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The paper examines the issues of modeling a hydraulic fracturing crack, which arises when analyzing the leakage of hydraulic fracturing fluid into the formation. Fluid leakage into the formation are subdivided into normal (not dependent on pressure) and pressure-dependent. Pressure-dependent leakages occur during hydraulic fracturing in fields with low filtration properties. The importance of accounting for such leakage is demonstrated by a specific example. It is shown that the choice of a pressure-independent leakage model affects the required calculated volume of injected fluid. In case of
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Rong, Li, Chen Lunjun, Su Ming, Zeng Qi, and Liu Yong. "Study on Friction and Wear Characteristics of Aluminum Alloy Hydraulic Valve Body and Its Antiwear Mechanism." Archives of Foundry Engineering 17, no. 1 (2017): 207–15. http://dx.doi.org/10.1515/afe-2017-0037.

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Abstract In order for the working status of the aluminum alloyed hydraulic valve body to be controlled in actual conditions, a new friction and wear design device was designed for the cast iron and aluminum alloyed valve bodies comparison under the same conditions. The results displayed that: (1) The oil leakage of the aluminum alloyed hydraulic valve body was higher than the corresponding oil leakage of the iron body during the initial running stage. Besides during a later running stage, the oil leakage of the aluminum alloyed body was lower than corresponding oil leakage of the iron body; (2
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Dziubak, Tadeusz, and Paweł Szczepaniak. "Modelling Internal Leakage in the Automatic Transmission Electro-Hydraulic Controller, Taking into Account Operating Conditions." Energies 16, no. 22 (2023): 7667. http://dx.doi.org/10.3390/en16227667.

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The basic malfunction of automatic transmissions (ATs) is oil flow through hydraulic precision pair clearances called an “internal leakage”, leading to difficulties in controlling the AT. There are no sufficiently accurate methods for assessing the impact of “internal leakage” on the AT technical condition in the course of operation. A proprietary hydraulic precision pair internal leak flow model has been proposed in the paper. The novelty of the model is applying electro-hydraulic controller precision pair clearance values as data that was determined through measurements involving an actual o
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Jiang, Zhou, Yiming zhao, and Hui Ai. "A horizontal hydraulic cylinder head oil contamination recovery device." Journal of Physics: Conference Series 3032, no. 1 (2025): 012049. https://doi.org/10.1088/1742-6596/3032/1/012049.

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Abstract Leakage from the head of a horizontal hydraulic cylinder is a common equipment defect. If not handled properly, the leaking hydraulic oil can cause environmental pollution. This paper designs a horizontal hydraulic cylinder head oil contamination recovery device based on the actual conditions of the Three Gorges Ship Lock. It effectively prevents the leakage of hydraulic oil from the cylinder head from polluting the machine room environment and even the water in the lock chamber. The device is easy to install and has good versatility.
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Inaguma, Yoshiharu. "A practical approach for analysis of leakage flow characteristics in hydraulic pumps." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 227, no. 5 (2012): 980–91. http://dx.doi.org/10.1177/0954406212456933.

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This article presents a practical approach to leakage flow analysing for various types of hydraulic pumps. In this study, the influence of pump-operating conditions such as operating pressures, pump speeds and oil temperature on the leakage flow characteristics is investigated and a mathematical model to calculate the leakage flow is proposed. Currently, an external gear, an internal gear or a vane pump is commonly used for an automatic transmission. These pumps have their own leakage flow characteristics, which depend not only on pump-operating conditions but also on structures and dimensions
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Su, Chang, and Wei Jia Su. "Fault Tree Analysis on Hydraulic System Causing Fire of Heavy Self-Dumping Truck." Advanced Materials Research 619 (December 2012): 425–30. http://dx.doi.org/10.4028/www.scientific.net/amr.619.425.

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The fire accident of heavy mineral self-dumping truck is one of the most serious disaster in mine safety production. Research on the reasons that cause fire accident is an important study for ensuring safety production. By analyzing three elements that constitute self-dumping truck fire accident, the characteristics and easy ignition points as well as major combustion parts of self-dumping truck fire accident, we confirm that the hydraulic system leakage is the major factor that causes fire. To find out the fault reason of hydraulic system oil leakage, we analyze the composition and working pr
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Achitaev, A. A., A. I. Valetskaya, M. F. Noskov, and V. I. Tatarnikov. "Application of an adaptive controller for controlling the rotational velocity of hydrogenerators taking into account the technological state of a Kaplan turbine." iPolytech Journal 26, no. 3 (2022): 415–25. http://dx.doi.org/10.21285/1814-3520-2022-3-415-425.

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The impact of oil leakages in a turbine on the main power system parameters is investigated in reactive hydraulic turbines with adjustable-blade runners (Kaplan turbines) installed at Maynskaya, Nizhne-Bureiskaya and Vilyuyskaya hydroelectric power plants. The main theoretical relations and conclusions were obtained by the methods of mathematical simulation and integral calculations in the MATLAB software environment. A method is proposed for monitoring leakages in the housing of an adjustable-blade runner and smoothing the fluctuations of various parameters (amplitude, rotational velocity, ph
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Lou, Xi Yin. "Research on Oil Temperature Control Technology of Mobile Machinery in Closed Hydraulic Transmission System." Advanced Materials Research 1037 (October 2014): 274–77. http://dx.doi.org/10.4028/www.scientific.net/amr.1037.274.

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Hydraulic oil temperature with the system condition, environment temperature and heat exchange characteristics, is one of the most significant parameters affecting the performance of hydraulic system. Oil temperature directly changes oil viscosity and leakage characteristics, which affects the damping effect on system performance of hydraulic oil ratio, thereby affects the stability of the hydraulic system and dynamic response. At the same time, it also can cause the seal metamorphism and oil oxidation failure, which causes corrosion and formation of sediments, which affect the normal operatio
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Li, Fei, and Lingzhi Yan. "Analysis and Research on Vibration of Hydraulic System at the Three Gorges Ship Lift Chamber." Advances in Engineering Technology Research 11, no. 1 (2024): 450. http://dx.doi.org/10.56028/aetr.11.1.450.2024.

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The hydraulic pump station at the lower head of the Three Gorges ship lift chamber primarily controls the opening and locking of the chamber gate, the lifting and locking of the anti-collision truss, the tensioning and release of the anti-collision buffer cylinder, and the extension and retraction of the sealing frame. The chamber gate is influenced by external forces such as water flow during the opening and closing process. The anti-collision truss, being in a single-arm suspended state, is affected by external wind forces during its lifting and lowering process. The operation of these mecha
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Xu, Su Ying. "Research for Guide Groove Configuration of Rotary Valve." Advanced Materials Research 989-994 (July 2014): 2874–77. http://dx.doi.org/10.4028/www.scientific.net/amr.989-994.2874.

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Rotary valve is a device to achieve fast commutation hydraulic transmission . Rotary valve is driven by a hydraulic motor drive and can achieve rapid conversion of the hydraulic circuit . Rotary valve spool by a rotating shaft , housing , shafts and bearings and other components. Guide grooves machined on the spool shaft is evenly distributed for hydraulic cylinder into the oil and return oil conversion. The coordinate gap between the spool shaft and valve chamber bore Because will affect the leakage in the leak. How to improve the guide groove structure? We can put the guide groove by high an
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Dissertations / Theses on the topic "Hydraulic Oil Leakage"

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Majdic, Franc. "Comparison of spool radial grooves influence between water and oil hydraulics." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-199629.

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In this paper numerical flow calculations with respect to the annular gaps with added radial grooves normaly used on the spools of directional control valves were carried out. The impact of various annular gap geometries and radial grooves during variable pressure conditions, and while using different hydraulic fluids, on the flows through annular gaps were investigated for different flow regimes. Samples with different geometries and numbers of radial groves on the spool of the directional control valve were also made for the purpose of carrying out flow measurements. The two different hydrau
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賴政何. "Study of Effects of Hydraulic Sleeves Length to the Oil Film Leakage." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/94079870604402099426.

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碩士<br>國立彰化師範大學<br>電機工程學系<br>99<br>In this thesis, the influence of different contact areas between hydraulic cylinder sleeves and cylinders on the lifetime of hydraulic cylinder is investigated. Three different sizes of sleeves, 1810, 1815 and 1820, are utilized to test the durability by hydraulic-pneumatic test machine under the pressure 100 kgf/cm2, and investigate the amount of oil film exuding from cylinder. Most of hydraulic with more exuding are horizontal big loading. Therefore, the study adopt horizontal hydraulic with 7.1kg loading, which naturally deflects the cylinder by the influen
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Books on the topic "Hydraulic Oil Leakage"

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Troubleshooting hydraulic components: Using leakage path analysis methods : a practical guide. R.S. McLaren, 1993.

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Book chapters on the topic "Hydraulic Oil Leakage"

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Wang, Jianjun, Sulan Hao, and Wenlei Li. "Study on Multiple Hydraulic Cylinders Synchronous Control Under Impact Load." In Lecture Notes in Mechanical Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-1876-4_39.

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AbstractIn engineering, it is often necessary to use multiple hydraulic cylinders to drive the load at the same time. Under the impact load, because of the compressibility and leakage of hydraulic oil is inevitable, it is difficult to accurately control the speed of the actuator. Firstly, the compression and leakage of the hydraulic oil under the impact load are analyzed theoretically, and the main factors affecting the speed stability of the hydraulic cylinder are obtained. A multiple hydraulic cylinders synchronous control experimental circuit with electro-hydraulic proportional PID control is designed, which is composed of pump station, oil cylinders, displacement detection sensors and computer control system. The master–slave control strategy, electro-hydraulic proportional closed-loop control and fuzzy PID weighted control algorithm are adopted, and the simulation results show that this method can realize the stable control of hydraulic cylinder speed, and improve the synchronous control accuracy of multiple hydraulic cylinders, and the synchronous accuracy is within 0.5 mm. Finally, the experimental platform is built for practical verification, and through data acquisition and displacement monitoring of the system, it can be proved this method can realize the accurate synchronization of displacement driven by four hydraulic cylinders. The results show that the system is easy to control and has high synchronization accuracy, which can provide a reference for the design of multiple actuators synchronization control.
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Fuse, Kishan, Bhasuru Abhinaya, Jaydeep Solanki, Kiran Wakchaure, and Nagorao Surner. "Integrating FMEA and DEMATEL Methods for Identification of Leakage of Oil in Hydraulic Cylinder Assembly." In Lecture Notes in Mechanical Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-4324-7_31.

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Conference papers on the topic "Hydraulic Oil Leakage"

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Rao, Peter. "Robust Hydraulic Filter Rated Using Dynamic Efficiency Test Method Will Increase Aircraft Reliability and Safety." In Vertical Flight Society 73rd Annual Forum & Technology Display. The Vertical Flight Society, 2017. http://dx.doi.org/10.4050/f-0073-2017-12223.

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Hydraulic contamination is a major contributor to flight control anomalies, binding, and leakage of hydraulic components. Typically, filters are rated using Beta Ratio/Efficiency at certain micron sizes per standard lab tests such as ISO 16889 or Mil-F-8815D (Ref. 1, 2). These are all steady flow tests at 100°F. Unfortunately, during normal aircraft operations, hydraulic filters are exposed to a wide range of operating conditions such as high oil temperatures, vibration due to pressure pulsations and flight maneuvers, cyclic flow and thermal excursions. The current hydraulic filters used on Ar
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Raneda, Albert, Mikko Siuko, and Tapio Virvalo. "Comparison of a Hydraulic Vane Actuator With Oil and Water." In ASME 2001 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/imece2001/fpst-25004.

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Abstract The aim of this paper is to compare the performance of a hydraulic vane actuator with oil and water as the pressure medium. If the same performance level can be achieved with water and oil hydraulics, water as the pressure medium is preferred in applications where external oil leakage is not allowed or in applications that need fireproof fluids. In order to compare the performance, a theoretical analysis of the actuator characteristics is carried out. The analysis includes a linear model of the hydraulic drive and allows identifying which factors should be analyzed in detail. As a res
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Bin Liu, Qinghe Zhou, Bang Li, and Jiakun Hu. "Analysis and correction of oil leakage of a hydraulic actuator." In CSAA/IET International Conference on Aircraft Utility Systems (AUS 2018). Institution of Engineering and Technology, 2018. http://dx.doi.org/10.1049/cp.2018.0153.

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Zhang, Yongwei, Yongji Liu, Zhaoxiong Wang, Yuhua Tao, Liman Yang, and Yunhua Li. "Prediction of Oil Contamination in Aviation Hydraulic System and Active Leakage Strategy." In 2022 IEEE 17th Conference on Industrial Electronics and Applications (ICIEA). IEEE, 2022. http://dx.doi.org/10.1109/iciea54703.2022.10006227.

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He, Xupeng, Marwa Alsinan, Hyung Kwak, and Hussein Hoteit. "High-Resolution Micro-Continuum Approach to Model Matrix-Fracture Interaction and Fluid Leakage." In SPE Middle East Oil & Gas Show and Conference. SPE, 2021. http://dx.doi.org/10.2118/204531-ms.

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Abstract Understanding the fundamental mechanism of fracture-matrix fluid exchange is crucial for the modeling of fractured reservoirs. Traditionally, high-resolution simulations for flow in fractures often neglect the matrix-fracture leakage influence on the fracture hydraulic properties, i.e., assuming impermeable fracture walls. This work introduces a micro-continuum approach to capture the matrix-fracture leakage interaction and its effect on the rock fractures’ hydraulic properties. Because of the multiscale nature of fractured media, full physics Navier-Stokes (NS) representation everywh
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Leem, Junghun, Yon Azwa Sazali, Latief Riyanto, and Muhammad Syafeeq Ebining Amir. "Near Wellbore Cement Integrity of CO2 Geologic Storage in Mature Gas Field, Malaysia." In SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition. SPE, 2023. http://dx.doi.org/10.2118/215209-ms.

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Abstract Appraising CO2 leakage risks and ensuring the long-term CO2 containment integrity of existing and new wells are key factors in guaranteeing the sustainability of potential CO2 geologic storage in a depleted mature gas field. Particularly, considering CO2 leakage through cement itself (i.e., sheath and plug) and cement interfaces with casing is critical in assessing the CO2 leakage risks and the long-term containment integrity sustainability. To estimate CO2 leakage through cement sheath/plug and cement-casing interfaces, two separate work scopes were identified and addressed. First, a
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Liang, Yue, Zhixiao Wang, and Zhichun Wang. "Research on Fault Diagnosis of Hydraulic Oil Leakage in the ABS System of Automobile." In 5th International Conference on Vehicle, Mechanical and Electrical Engineering. SCITEPRESS - Science and Technology Publications, 2019. http://dx.doi.org/10.5220/0008865400500053.

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Majdič, Franc. "Research on the water hydraulic pressure relief valve." In International conference Fluid Power 2021. University of Maribor Press, 2021. http://dx.doi.org/10.18690/978-961-286-513-9.3.

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Water hydraulics is increasingly becoming a viable alternative to oil hydraulics due to its environmental sustainability. The leakage of water hydraulic components is one of the reasons why water hydraulics is not more widely used. One of the missing water hydraulic components is also the two- stage pressure relief valve. Various valve designs have been investigated. FEM and CFD analyses of the relief valve were performed. Some prototypes were made and tested in the pressure range of 50 to 200 bar at a maximum flow rate of 30 lpm. The functional characteristics of the valve were studied, and t
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Sasaki, Akira, Shinji Uchiyama, and Mario Kawasaki. "Investigation of O-Ring Deterioration Due to Polymerized Oil Oxidation Products." In World Tribology Congress III. ASMEDC, 2005. http://dx.doi.org/10.1115/wtc2005-64104.

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Oil leakage itself is not serious for machine operation but it is one of the most troublesome problems for hydraulic and lubricating systems maintenance. Oil leakage endangers the working environment and causes injury and fire in factories. It is generally understood that oil leakage is caused by deterioration or wear of sealing materials like rubber. Maintenance people have sometimes seen some deposits on the deteriorated oil seals. However no studies have been made in the past on the relation between the deterioration of the rubber materials and the deposits. This paper demonstrates by exper
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Song, Jinchun, Shichang Zhou, and Lipeng Liu. "An Automatic Shut-Off Valve for Hydraulic Accumulators." In ASME 1996 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1996. http://dx.doi.org/10.1115/imece1996-0542.

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Abstract This paper introduces an automatic shut-off valve device used in conjunction with a hydraulic accumulator that compensates for leakage in hydraulic accumulator circuits. This device shuts off automatically to prevent the pressurized oil inside the accumulator from draining out whenever the pressure of the circuit drops to zero. Therefore, it saves the time and energy of recharging the accumulators.
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