Results 151 to 160 of about 393 (184)
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Lubrication Analysis of the Thrust Bearing in the Valve Plate of a Swash-Plate Type Axial Piston
ASME/STLE 2011 Joint Tribology Conference, 2011This application study of a swash-plate type axial piston pump was concerned about the hydrostatic lubrication characteristics of cylinder barrel and valve plate which are main rotating body and its opposite moving part respectively. A computer simulation was implemented to assess thrust bearing and mechanical sealing functions of the fluid film ...
J. H. Shin, H. E. Kim, K. W. Kim
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Numerical Analysis and Characteristics of Variable Displacement Swash Plate Type Compressor
Applied Mechanics and Materials, 2015Variable swash plate compressors recently have been used to improve fuel efficiency and SCM 435 or UNS C67300 were used as the material to manufacture them.As a result of structure analysis through static analysis that used ANSYS, SCM 435 currently being used was found structurally safe as it has that maximum stress is within the allowable range of ...
Seo Hyun Sang +4 more
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Analysis of Performance Characteristics of Swash-Plate-Type Hydraulic Piston Motor
Transactions of the Korean Society of Mechanical Engineers A, 2012Key Words:PistonAssembly(피스톤조립체),HydrostaticBearingRatio(정압베어링비),HydraulicMotor(유압모터),VolumetricEfficiency(용적효율)초록: 유압피스톤모터는정압베어링부분의마찰손실과용적손실, 기구적운동부분의마찰손실, 오일의관로저항에의한압력저하,압축성에의한체적손실그리고하우징오일처닝(churning)손실등이있다.이러한손실중에서일정한틈새의유막(oil film, 8 15μm)으로고속회전하는피스톤슈(piston shoe)와슈플레이트(shoeplate)사이정압베어링부분의마찰및용적손실이유압모터의전체효율을좌우한다.본연구에서는최고압력35MPa, 최고회전수2500rpm ...
Yong-Bum Lee, Kwang-Min Kim
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2016 IEEE International Conference on Mechatronics and Automation, 2016
Machinery industry has constantly driven research on automation systems that use mechanical energy to increase the efficiency, productivity and convenience of production systems. In particularly the hydraulic systems using hydraulic fluid have higher power outputs than those of other systems, which is why they have long been used in construction and ...
Yoo Seong Jeong +4 more
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Machinery industry has constantly driven research on automation systems that use mechanical energy to increase the efficiency, productivity and convenience of production systems. In particularly the hydraulic systems using hydraulic fluid have higher power outputs than those of other systems, which is why they have long been used in construction and ...
Yoo Seong Jeong +4 more
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10PC20 Swash Plate Type Variable Displacement Compressor for Automotive Air Conditioners
SAE Technical Paper Series, 1992<div class="htmlview paragraph">Up to now, various compressor models for automotive air conditioners have been manufactured to answer the needs of car manufacturers for fuel economy and quietness. The 10PC20 compressor, developed for automotive air conditioners, is the world's first swash plate type compressor having a continuously variable ...
Toshiki Taya +3 more
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Scaling the Speed Limitations for Axial-Piston Swash-Plate Type Hydrostatic Machines
Journal of Dynamic Systems, Measurement, and Control, 2014This paper proposes a scaling law for estimating the speed limitations for a family of axial-piston swash-plate type hydrostatic machines. The speed limitations for this machine are considered from three mechanical perspectives: (1) cylinder-block tipping, (2) cylinder-block filling, and (3) slipper-tipping.
Noah D. Manring +4 more
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A temperature adaptive piston design for swash plate type axial piston machines
International Journal of Fluid Power, 2016AbstractThe authors propose a temperature adaptive piston design for axial piston machines of swash plate type. The proposed piston helps to keep the film thickness between piston and cylinder close to optimal with respect to energy dissipation while operating temperature can change in a wide range. The authors utilize the thermal deformation of piston
Lizhi Shang, Monika Ivantysynova
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Increasing the Power Density for Axial-Piston Swash-Plate Type Hydrostatic Machines
Journal of Mechanical Design, 2013Power density is an assumed attribute of an axial-piston swash-plate type hydrostatic machine. As such, very little research has been conducted to examine the nature and limit of this machine's power density and the literature is all but void of this important topic.
Noah D. Manring +4 more
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Energy efficiency modeling and validation of a novel swash plate-rotating type hydraulic transformer
Energy, 2020Abstract This paper reports a mathematical model and an experimental validation for the efficiency of a new type of hydraulic transformer, which utilizes a new structure of rotating swash plate. Such a type allows the valve plate being fixed without relative movement to the 3 pressure ports, reducing the throttling loss.
Junjie Zhou, Chongbo Jing, Wei Wu
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A study on the optimum design for the valve plate of a swash plate-type oil hydraulic piston pump
Journal of Mechanical Science and Technology, 2015Numerous studies have been conducted on hydraulic systems operating under high pressure. However, such systems are difficult to realize because of mechanical limitations as a result of tribological problems between relative sliding parts. Design techniques, manufacturing techniques, and tribological characteristics must be improved or innovated to ...
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