Dependence of the Characteristics of a High-Pressure Piston Pair on the Properties of PES-3 Working Fluid and the Pressure Distribution in the Piston-Cylinder Gap

The use of the liquid PES-3 in a high-pressure piston pair is modeled and the parameters of the piston pair are determined. Equations are derived for a mathematical model describing the variation of the pressure in the gap between the piston and cylinder. The distribution of the pressure in the gap...

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Bibliographic Details
Published in:Measurement techniques 2021, Vol.63 (10), p.811-815
Main Author: Aslanyan, A. E.
Format: Article
Language:English
Subjects:
Analytical Chemistry
Characterization and Evaluation of Materials
Cylinders
Mathematical models
Measurement Science and Instrumentation
Mechanical Measurements
Physical Chemistry
Physics
Physics and Astronomy
Pressure distribution
Stress concentration
Working fluids
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Summary:The use of the liquid PES-3 in a high-pressure piston pair is modeled and the parameters of the piston pair are determined. Equations are derived for a mathematical model describing the variation of the pressure in the gap between the piston and cylinder. The distribution of the pressure in the gap between the piston and cylinder is calculated for piston pressures below 1.6 GPa. The profiles of the gaps between a deformed piston and the cylinder are calculated for different piston pressures and the dependences of the piston downstroke velocity and gap efficiency on the piston pressure are calculated for different gaps of the undeformed piston pair. The results of this study can be used for the design of piston pairs operating in PES-3 fluid at pressures ranging from 0.01–1.6 GPa.
ISSN:0543-1972
1573-8906
DOI:10.1007/s11018-021-01857-w