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Mechanical Variable Valve Duration
Chrysler Other IdeaSubmitted 5 years ago
A mechanical valve train that gives you the ability to adjust the duration and the valve lift infinitely throughout the entire rpm range. This system is geared toward a naturally aspirated engine,providing it with a flat torque curve. Working prototype has proved flat torque curve.
The mechanically operable variable timing device for use with a rocker arm pivot point that is able to adjust the valve timing and lift on a valve stem by adjusting the pivot point of the rocker arm. The mechanically operated variable timing device includes a cam that rotates independent of engine RPM in order to adjust the pivot point of the rocker arm, which in turn adjust the lift and valve timing of the engine at any RPM. The mechanically operated variable timing device places that cam above a plunger, which is positioned over the respective rocker arm. The plunger is biased upwardly via a spring positioned between the ball fulcrum of the rocker arm and a bottom portion of the plunger. A pivot shaft is threadably engaged to a threaded hole located on a top surface of the engine block.
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