发明名称 |
VALVE OPERATION IN AN INTERNAL COMBUSTION ENGINE |
摘要 |
An apparatus and method for operating a plurality of valves in an engine uses valve actuators to move each valve. Accelerometers are used to detect acceleration of the valves and particularly the moment when they seat. A knock sensor detects an acoustic impulse made by the valves when they seat. A controller correlates signals from the sensor and accelerometers, wherein a signal from the sensor that correlates in time with a signal from an accelerometer indicates seating of the respective valve, which indicates a closure of the respective valve. The controller measures a magnitude of the acoustic impulse to be used as feedback in controlling the operation of the respective valve actuator, and provide softer landings of the valve.
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申请公布号 |
US2006150932(A1) |
申请公布日期 |
2006.07.13 |
申请号 |
US20050035194 |
申请日期 |
2005.01.13 |
申请人 |
NABER JEFFREY D;DEUTSCH ROBERT W;FRANKOWSKI DAVID;GOBLE MONROE;PLEE STEVEN L |
发明人 |
NABER JEFFREY D.;DEUTSCH ROBERT W.;FRANKOWSKI DAVID;GOBLE MONROE;PLEE STEVEN L. |
分类号 |
F01L9/04 |
主分类号 |
F01L9/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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