Thermal Effects on the Fluid Film in the Cylinder Block/Valve Plate Interface due to Compression and Expansion of the Fluid

Chacon, Rene

doi:10.5739/jfpsij.11.136

Cited by 5 publications

(1 citation statement)

References 6 publications

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“…L. Shang et al [24] also proposed a temperature prediction model considering hydraulic oil compression and expansion, the heat transfer caused by energy loss and power loss, and the temperature change of the pump outlet and shell was well predicted. Chacon et al [25] proposed a thermoelastohydrodynamic model to solve the pressure and temperature distribution in a fluid film, the temperature distribution in a solid, and its elastic deformation under the influence of pressure and heat. Petrovic et al [26] studied the working performance, efficiency, and reliability of CPAP and analyzed the effect of temperature on the pump efficiency by taking into account the viscosity of hydraulic oil.…”

Section: Introductionmentioning

confidence: 99%

Study on Temperature Characteristics of Lubrication Film of Valve Plate Pair in Axial Piston Pumps

Zhang,

Ma,

et al. 2024

Applied Sciences

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The film temperature distribution of the valve plate pair in axial piston pumps affects its lubrication, leakage, and friction. In order to investigate the film temperature distribution of the valve plate pair in axial piston pumps, a test platform was constructed including three displacement sensors for the oil film thickness and eleven thermocouples for the film temperature distribution of the valve plate pair. An accurate film shape model of the valve plate pair was built according to the three-point film thickness test data. Based on the film shape model, the film temperature model of the valve plate pair was developed considering the viscous oil temperature characteristics, the energy loss caused by leakage and viscous friction in the film, and the heat conduction among the oil, cylinder block, and valve plate. The influence of different swash plate tilt angles and operating pressures on the valve plate film temperature was studied. The test results indicate that the film temperature of the valve plate pair increases as the working pressure and swash plate tilt angle increase. The theoretical and experimental absolute errors of the film temperature in the circumferential range [−60°, 60°] of the valve plate high-pressure side are less than 3.5 °C. As the swash plate tilt angle varies from 12° to 16° and working pressure from 3 MPa to 7 MPa, the minimum film thickness position and the maximum temperature point move accordingly in the circumferential range [−15°, 5°] of the valve plate pair.

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Section: Introductionmentioning

confidence: 99%

Study on Temperature Characteristics of Lubrication Film of Valve Plate Pair in Axial Piston Pumps

Zhang,

Ma,

et al. 2024

Applied Sciences

View full text Add to dashboard Cite

show abstract

Review of cylinder block/valve plate interface in axial piston pumps: Theoretical models, experimental investigations, and optimal design

Zhao

et al. 2021

Chinese Journal of Aeronautics

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Flow characteristics of integrated motor-pump assembly with phosphate ester medium for aerospace electro-hydrostatic actuators

Zhao

et al. 2023

Chinese Journal of Aeronautics

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Thermal Effects on the Fluid Film in the Cylinder Block/Valve Plate Interface due to Compression and Expansion of the Fluid

Cited by 5 publications

References 6 publications

Study on Temperature Characteristics of Lubrication Film of Valve Plate Pair in Axial Piston Pumps

Study on Temperature Characteristics of Lubrication Film of Valve Plate Pair in Axial Piston Pumps

Review of cylinder block/valve plate interface in axial piston pumps: Theoretical models, experimental investigations, and optimal design

Flow characteristics of integrated motor-pump assembly with phosphate ester medium for aerospace electro-hydrostatic actuators

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