Sudbrink Matthew R.,Shah Kena,Knobloch Dean A.,Henry James W.
申请号：
US201615086797
公开号：
US9986674(B2)
申请日:
2016.03.31
申请国别(地区):
美国
年份:
2018
代理人:
Henkel Rebecca L.`DeMille Rickard K.
摘要：
An agricultural tillage implement has a main frame section, a left wing section, and a right wing section. Lift wheels and gauge wheels are actuated by hydraulic cylinders supplied by a hydraulic system. Solenoid valves connect groups of hydraulic cylinders to each other and to bypass circuits. The solenoid valves and the bypass circuits function to selectively allow coordinated control and individual control of the lift wheels and gauge wheels. The hydraulic system has at least one hydraulic flow divider and combiner dividing hydraulic flow and pressure between at least one left hydraulic circuit and at least one right hydraulic circuit. The at least one hydraulic flow divider and combiner functions to coordinate the motion of the left rear lift wheels and gauge wheels, and the right rear lift wheels and gauge wheels, and may be overridden by bypass valves.
