HYDRAULIC SYSTEM HAVING A RETURN PRESSURE COMPENSATOR

摘要

A hydraulic system (22) for a work machine (10) is disclosed. The hydraulic system has a reservoir (34) configured to hold a supply of fluid and a source (18) configured to pressurize the fluid. The hydraulic system also has a fluid actuator (30), a first valve (27), and a second valve (32). The first valve is configured to selectively fluidly communicate the source with the fluid actuator to facilitate movement of the fluid actuator in a first direction. The second valve is configured to selectively fluidly communicate the fluid actuator with the reservoir to facilitate movement of the fluid actuator in the first direction. The hydraulic system further has a proportional pressure compensating valve (36) configured to control a pressure of a fluid directed between the fluid actuator and the reservoir.