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公开(公告)号:US5474307A
公开(公告)日:1995-12-12
申请号:US401649
申请日:1995-03-10
申请人: Richard DeBiasse , Donald J. Altobe
发明人: Richard DeBiasse , Donald J. Altobe
摘要: A piston head assembly has one, two or more grooves to receive piston rings. One or more of the grooves may receive multiple piston rings. A circumferential groove from the bottom of the elastomeric material allows oil pressure to aid in sealing. A novel piston ring employs a circumferential channel facing outwardly with a shorter bottom channel facing outwardly with a shorter bottom channel sidewall. The elastomeric material extends to form a circumferential extension cooperative with a subgroove of the piston ring groove.
摘要翻译: 活塞头组件具有一个,两个或更多个凹槽以接收活塞环。 一个或多个槽可以容纳多个活塞环。 从弹性体材料的底部的圆周凹槽允许油压帮助密封。 新颖的活塞环采用面向外的周向通道,较短的底部通道面向外具有较短的底部通道侧壁。 弹性体材料延伸以形成与活塞环槽的次槽相配合的周向延伸。