The Piston Ring-Cylinder Bore Interface Leakage of Bent-Axis Piston Pumps Based on Elastohydrodynamic Lubrication and Rotation Speed

Table 1

Simulation parameters setting.

Description	Numerical value	Unit
Suction pressure	0.1	MPa
Discharge pressure	10, 15, 20	MPa
Rotation speed	700, 800, 900, 1000, 1100, 1200, 1300	r/min
Oil viscosity (at 40°C)	0.046	Pa.s
Diameter of distribution circle in piston head	68.1	mm
Diameter of cylinder bore	16	mm
Number of pistons	7
Swivel angle	40	deg
Width of piston ring	3.2	mm