Patent ID: 7357108
Filing Date: 2008-04-15
Classification: F01L

Abstract:
1. A valve operating system for an engine that includes a piston that reciprocates along a piston axis, the valve operating system comprising: a valve member movable between a first position and a second position; a crankshaft rotatable about a crank axis; a first plane normal to the crank axis; a second plane normal to the first plane and parallel to the piston axis such that the piston axis is projectable onto the first plane to define a first line and onto the second plane to define a second line; a shaft rotatable about a cam axis in response to rotation of the crankshaft, the cam axis projectable onto the first plane to define a third line and onto the second plane to define a fourth line, the first line and the third line together defining a first angle and the second line and the fourth line together defining a second angle, at least one of the first angle and the second angle being oblique; a cam member rotatable in response to rotation of the shaft, the cam member including a contoured surface; and a rocker arm interacting with the valve member and the contoured surface to move the valve member in response to rotation of the cam member.