Patent ID: 6561167
Filing Date: 2003-05-13
Classification: F02B,F02M,Y02T

Abstract:
An air assist fuel injector comprising: an armature;a solenoid assembly having a casing and a solenoid coil for actuating said armature, said solenoid coil located at least partially in said casing, said casing having a wall that defines a recess for receiving at least an outlet of a fuel injector, said wall including at least one conduit passing therethrough, said conduit communicating an area external said casing with said recess, said conduit being separate from said recess, said solenoid assembly further including a metallic housing that houses said solenoid coil, said casing abutting at least a portion of a cylindrical and exterior surface of said metallic housing; a metallic tube attached to said metallic housing and extending to a location upstream of said solenoid coil with respect to a direction of flow of liquid fuel and gas through said air assist fuel injector, said metallic tube having a wall with at least one conduit passing therethrough; and a poppet attached to said armature such that said poppet is actuated when said solenoid coil is energized.