Patent ID: 6810851
Filing Date: 2004-11-02
Classification: F02B,F02D,F02M,Y02T

Abstract:
An apparatus suitable for controlling a flow of a fluid within an intake passage of a reciprocating piston internal combustion engine, comprising:a flow body mounted within the intake passage, wherein a fluid flow passage is defined between an inner surface of the intake passage and an outer surface of the flow body, a valve member disposed within the intake passage and being reciprocally movable along the axial direction of the intake passage between a valve open position and a valve closed position, wherein at least a portion of the valve member defines a solenoid armature, a first solenoid disposed on a first side of the solenoid armature and being arranged and constructed to attract the valve member towards the valve open position when the first solenoid is actuated, and a second solenoid disposed on a second, opposite side of the solenoid armature and being arranged and constructed to attract the valve member towards the valve closed position when the second solenoid is actuated, wherein a portion of the fluid flow passage is defined through the second solenoid and the valve member is arranged and constructed to sealingly close the fluid flow passage when disposed on the valve closed position, and wherein the valve member is normally biased towards a central position between the first and second solenoid.