Patent ID: 6116570
Filing Date: 2000-09-12
Classification: F01L,F16K

Abstract:
An electromagnetic actuator comprising:an upper electromagnet,a lower electromagnet spaced from said upper electromagnet,an armature mounted for movement between said upper and lower electromagnets,a valve operatively associated with said armature such that movement of said armature moves said valve between open and closed positions,a hydraulic lash adjuster between said armature and said valve, said hydraulic lash adjuster having an adjuster housing and a piston movable via hydraulic fluid within said adjuster housing to compensate for lash between said armature and said valve, andport structure constructed and arranged to communicate hydraulic fluid from a source thereof with said piston,wherein said hydraulic lash adjuster is constructed and arranged to direct hydraulic fluid, received from said port structure, to said piston only when said valve is in the closed position thereof.