Patent ID: 6575126
Filing Date: 2003-06-10
Classification: F01L,F02M,F15B,F16K

Abstract:
A valve assembly adapted for an internal combustion engine, the valve assembly comprising:a valve housing having a first end and an opposing second end; an engine valve having a valve stem, the valve stem located within the valve housing, the engine valve moveable between an open position and a closed position; an armature coupled to the valve stem, the armature moveable between a first position and a second position; a first solenoid adjacent the first end of the valve housing, the first solenoid operable to move the armature to the first position and the engine valve to the closed position in response to a first digital pulse; a second solenoid adjacent the second end of the valve housing, the second solenoid operable to move the armature to the second position and the engine valve to the open position in response to a second digital pulse; a spring to couple the armature to the valve stem such that the engine valve is moveable to the closed position before the armature reaches the first position, wherein the armature is coupled to the valve stem such that the spring provides stored energy to move the armature away from the first position.