HYDRAULIC SYSTEM

摘要

A hydraulic system is provided, the hydraulic system including a hydraulic load defining a first chamber and a second chamber. Additionally, the hydraulic system includes a pressure source, a fluid storage vessel, a load sense line, and a spool valve. The spool valve fluidly connects the fluid storage vessel to one of the first or second chambers and fluidly connects the pressure source to the other of the first or second chambers. A bypass line is also provided defining a flow path between the hydraulic load and the fluid storage vessel that bypasses the spool valve. Fluid flow may encounter less resistance through the bypass line, such that the hydraulic system may run more efficiently and with a reduced risk for cavitation in the hydraulic load.

主权项

1. A hydraulic system comprising:
a hydraulic load defining a first chamber and a second chamber, the first chamber defining a first chamber pressure; a load sense line defining a load sense pressure; a pressure source configured to provide pressurized fluid to one of the first or second chambers of the hydraulic load; a fluid storage vessel defining a tank pressure configured to receive fluid from one of the first or second chambers of the hydraulic load; a control valve configured to fluidly connect the fluid storage vessel to one of the first or second chambers and the pressure source to the other of the first or second chambers; and a bypass line defining a flow path between the first chamber of the hydraulic load and the fluid storage vessel that bypasses the control valve, the bypass line configured to allow a fluid flow when a difference between the load sense pressure and the first chamber pressure is greater than a predetermined threshold, and when a difference between the tank pressure and the first chamber pressure is greater than a predetermined threshold.