发明授权
US06658842B2 Hydraulic system 失效
液压系统

Hydraulic system
摘要:
A hydraulic system includes an air sucking hydraulic circuit 8, an air sucking control valve 5, and a check valve 6 provided in or before and after the air sucking hydraulic circuit 8, hereby allowing a hydraulic fluid from the air sucking control valve 5 to flow to the hydraulic actuator 4 and preventing a flow of a hydraulic fluid from the hydraulic actuator 4 to the air sucking control valve 5.
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