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公开(公告)号:US5131431A
公开(公告)日:1992-07-21
申请号:US796589
申请日:1991-11-22
申请人: Andrew G. Vullmahn
发明人: Andrew G. Vullmahn
IPC分类号: F16K11/083
CPC分类号: F16K11/083 , Y10T137/86654 , Y10T137/86662
摘要: A hydraulic circuit includes a supply and exhaust valve provides a housing having a tapered passage and a tapered plug rotatable in the passage. The plug is biased into sealing engagement with the passage by a spring assembly acting on an inlet conduit providing a power fluid inlet. Rotation of the plug connects the inlet conduit to one of two housing ports to deliver power fluid to either the rod end or the cylinder end of a fluid motor to either retract and extend the piston rod. The plug also provides two additional independent fluid passages connecting other conduits leading to the motor and sump.
摘要翻译: 液压回路包括供排气门,提供具有锥形通道的壳体和可在通道中旋转的锥形塞。 插头通过作用在提供动力流体入口的入口导管上的弹簧组件偏压成与通道密封接合。 插头的旋转将入口导管连接到两个壳体端口之一,以将动力流体输送到流体马达的杆端或气缸端部,以缩回和延伸活塞杆。 插头还提供两个附加的独立流体通道,其连接通向电动机和贮槽的其它导管。