发明授权
- 专利标题： Random error generation of tooth index to eliminate pump noise
- 专利标题（中）： 随机误差产生牙齿指数消除泵噪声
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申请号： US282234申请日： 1999-03-21
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公开(公告)号： US6164944A公开(公告)日： 2000-12-26
- 发明人: Berthold Martin , Valentin Botosan
- 申请人： Berthold Martin , Valentin Botosan
- 申请人地址： MI Auburn Hills
- 专利权人： DamilerChrysler Corporation
- 当前专利权人： DamilerChrysler Corporation
- 当前专利权人地址： MI Auburn Hills
- 主分类号： F04C2/08
- IPC分类号： F04C2/08 ; F04C15/00 ; F04C2/10 ; F04C2/20
摘要：
A pump gear for an automatic transmission oil pump having a plurality of teeth. The thickness of each tooth varies randomly from a baseline thickness T.sub.B. Correspondingly, the clearance between each tooth varies randomly between each pair of adjacent teeth. The random variation in tooth thickness prevents the formation of resonant frequencies when the gear pump operates, thereby reducing noise produced by the automatic transmission oil pump.
公开/授权文献
- US5472800A High-temperature fuel cell with external manifolds 公开/授权日：1995-12-05
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