发明授权
- 专利标题: Engine valve actuation system
- 专利标题(中): 发动机气门驱动系统
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申请号: US10309801申请日: 2002-12-04
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公开(公告)号: US06907851B2公开(公告)日: 2005-06-21
- 发明人: Travis E. Barnes , Judson R. Bruce , Sean O. Cornell , Douglas E. Handly , Scott A. Leman , David M. Milam , Wade J. Robel , Di Wu
- 申请人: Travis E. Barnes , Judson R. Bruce , Sean O. Cornell , Douglas E. Handly , Scott A. Leman , David M. Milam , Wade J. Robel , Di Wu
- 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
- 代理商 Steve D Lundquist; Michael L Woods; J. W. Burrows
- 主分类号: F01L1/14
- IPC分类号: F01L1/14 ; F01L1/26 ; F01L9/02 ; F01L13/00 ; F01L13/06
摘要:
An engine valve actuation system is provided. The engine valve actuation system includes an intake valve that is moveable between a first position to prevent a flow of fluid and a second position to allow a flow of fluid. A cam assembly is configured to move the intake valve between the first position and the second position. A fluid actuator is configured to selectively prevent the intake valve from moving to the first position. A source of fluid is in fluid communication with the fluid actuator. A directional control valve is configured to control a flow of fluid between the source of fluid and the fluid actuator. A check valve is disposed between the directional control valve and the source of fluid, only allowing fluid flow from the fluid source to the directional control valve. A bleed orifice may be disposed between the directional control valve and the source of fluid, in parallel with the check valve.
公开/授权文献
- US20030221644A1 Engine valve actuation system 公开/授权日:2003-12-04
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