Kyle R. Teach,Thomas A. Nichols,David V. Rotole,Walter C. Wright
申请号：
US14455578
公开号：
US20160037721A1
申请日:
2014.08.08
申请国别(地区):
US
年份:
2016
代理人:
摘要：
A pressure control system is described for a vehicle having a hydraulically actuated header. The system may include a hydraulic lifting circuit for raising and lowering the header, a hydraulic float circuit for floating the header, and a drain tank. A lifting circuit control valve may be configured to control drainage of hydraulic fluid from the hydraulic lifting circuit to the drain tank. A float circuit control valve may be configured to control drainage of hydraulic fluid from the hydraulic float circuit to the drain tank. A user interface may be configured to receive one or more inputs to control drainage of hydraulic fluid from the hydraulic circuits. Based upon the one or more inputs, at least one of the control valves may be opened, in order to depressurize, respectively, one of the hydraulic circuits.
