US 7,367,299 B2
Variable ratio rocker assembly
David N. Vaseleniuck, 4387 Racing Dr., Denver, N.C. 28037-6214 (US)
Filed on Jan. 03, 2007, as Appl. No. 11/619,403.
Claims priority of provisional application 60/756154, filed on Jan. 04, 2006.
Prior Publication US 2007/0151532 A1, Jul. 05, 2007
Int. Cl. F01L 1/34 (2006.01)
U.S. Cl. 123—90.16  [123/90.39; 123/90.41] 20 Claims
OG exemplary drawing
 
1. A variable ratio rocker assembly, comprising:
(a) a rocker arm adapted to move a valve between a closed position and an open position;
(b) a radiused follower adapted to interact with a portion of the rocker arm, wherein the follower causes the rocker arm to move the valve between the closed position and the open position; and
(c) a push rod for moving the follower in response to a camshaft, such that when the pushrod moves upwardly to move the follower and cause the rocker arm to move the valve to the open position, a contact point between the follower and the rocker arm moves along the rocker arm towards a center of the rocker arm to variably increase a lift ratio of the rocker assembly.