Patent ID: 11906986
Assignee: PARKER HANNIFIN EMEA S.À.R.L.
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F  G | IPC F  G

Claim 1:
2. The counter pressure valve arrangement according to claim 1,
wherein the valve member is configured to shift to the first position effecting fluid communication between the pump port and the counter pressure regulating port for supplying pressurised hydraulic fluid to the return line when the pressure level of the hydraulic fluid in the return line is below a first threshold value or below a second fixed or variable threshold value, and
wherein the valve member is configured to shift to the second position effecting fluid communication between the counter pressure regulating port and the tank port for discharging hydraulic fluid from the return line to the tank when the pressure level of the hydraulic fluid in the return line is above a first fixed or variable threshold value.