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公开(公告)号:US4389922A
公开(公告)日:1983-06-28
申请号:US294545
申请日:1981-03-20
摘要: A lubricating valve for a moveable piston, the valve supplying lubricant at low pressure and being reversible automatically in response to a reversal of the higher pressure which drives the piston.
摘要翻译: 用于可移动活塞的润滑阀,阀在低压下供应润滑剂并且响应于驱动活塞的较高压力的反转而自动地可逆。