Lost motion valve control apparatus
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United States of America Patent
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Nov 5, 2013
Grant Date -
Jul 26, 2012
app pub date -
Aug 4, 2010
filing date -
Aug 4, 2009
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A valve control device for an internal combustion engine with an engine valve and a camshaft having a cam profile including a first lift profile is disclosed. The device includes a first body and second body. The device is configurable in first and second configurations. When in the first configuration, relative movement between the first and second body, caused when said first lift profile engages a cam engagement surface, inhibits a valve actuating linkage from actuating said engine valve. Embodiments of the device include a means which, when in the second configuration, prevents relative movement between the first and second bodies when the first lift profile engages the cam engagement surface to enable the valve actuating linkage to actuate said engine valve, and when the device is in the second configuration, the means may be arranged so substantially all of the force exerted as the valve is actuated is compressive.
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