发明授权
- 专利标题: Three way valve and electro-hydraulic actuator using same
- 专利标题(中): 三通阀和电动液压执行器使用相同
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申请号: US10729539申请日: 2003-12-05
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公开(公告)号: US06955114B2公开(公告)日: 2005-10-18
- 发明人: Alan R. Stockner , Norval J. Wiemken , Scott F. Shafer , Gene R. Slinkard , Mark S. Cavanagh , Ye Tian
- 申请人: Alan R. Stockner , Norval J. Wiemken , Scott F. Shafer , Gene R. Slinkard , Mark S. Cavanagh , Ye Tian
- 申请人地址: US IL Peoria
- 专利权人: Caterpillar Inc
- 当前专利权人: Caterpillar Inc
- 当前专利权人地址: US IL Peoria
- 代理机构: Liell & McNeil
- 主分类号: F02M47/00
- IPC分类号: F02M47/00 ; F02M47/02 ; F02M51/00 ; F02M63/00 ; F15B13/02 ; F15B13/044 ; F16K11/00 ; G05D16/00
摘要:
The present invention relates to high speed control valves which are especially applicable for use in fuel injection systems. Producing a valve with a quick response time within acceptable packaging constraints and with a structure that allows the valve to be mass produced with consistent performance between valves is extremely problematic. By moving flow restrictions within the valve away from the valve seats, flow forces on the valve member can be reduced, while possibly also permitting a reduction in the necessary travel distance of the valve member to improve response time and other performance characteristics. The valve is particularly applicable in controlling hydraulic pressure applied to the closing hydraulic surface of a direct control needle valve in a fuel injector.
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