Valve-stroke controls
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United States of America Patent
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-
Dec 23, 2008
Grant Date -
Nov 18, 2004
app pub date -
Apr 29, 2004
filing date -
Nov 6, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A valve-stroke control apparatus continuously varies the stroke of a valve in an engine, and selectively maintains it in a closed position, while the-engine is in operation. The control apparatus includes a force-transmitting rod which is pivoted by a cam and a cam-contact roller. An additional roller on one end of said force-transmitting rod engages a transverse contact surface of a stroke-length setting lever. The contact surface has a contour such that pivoting of the force-transmitting rod causes movement between the contact surface and the additional roller, which in turn displaces the force-transmitting rod longitudinally in a direction associated with valve opening. Such displacement is introduced by way of a rotary articulation into a rocking lever that activates the valve.
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