Patent ID: 7296548
Filing Date: 2007-11-20
Classification: F01L,Y10T

Abstract:
1. A valve lifter assembly for deactivating a cylinder valve in an engine, the lifter assembly comprising: a lifter body including a wall, the wall having an inner surface, the wall defining at least one pin receiving feature therein, the lifter body having a first lifter end configured for engaging a cam of the engine; a pin housing including an outer surface, the pin housing defines a radially directed pin bore therein, the pin housing is disposed within the lifter body such that at least a portion of the outer surface of the pin housing wall is adjacent to at least a portion of the inner surface of the wall of the lifter body; a locking member disposed in the pin housing in an unlocked position, the locking member being selectively disposed in the pin housing and the at least one pin receiving feature defined in the lifter body in a locked position; and a stop member extending at least partially into the pin bore to limit the radially inward motion of the locking member, wherein when the locking member is positioned in the locked position the pin housing is secured to the lifter body to prevent relative movement there between and thereby transmit rotational movement of the cam to operate the valve, and when the locking member is in the unlocked position the pin housing is permitted to move relative to the lifter body to isolate the rotational movement of the cam to deactivate the valve.