Valve return device, and an engine equipped with such a device
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United States of America Patent
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Jul 31, 2007
Grant Date -
Oct 6, 2005
app pub date -
Mar 16, 2005
filing date -
Mar 17, 2004
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to a return device for returning a valve of an internal combustion engine, the device comprising: a piston secured to said valve and mounted to slide in a cylinder; a pressurized fluid feed connected to said cylinder via a feed channel; and a pressure relief valve connected to said cylinder via a discharge channel and arranged to limit the pressure prevailing in the cylinder to a predetermined maximum pressure; and means for regulating the maximum pressure as a function of the feed pressure using an affine-type relationship. The invention also relates to an internal combustion engine equipped with such a device.
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