Electric control valve

Claim 1

A two piece control valve adapted to be received within a bore of a cooperating apparatus, the control valve comprising: a stator; a lower body member positioned adjacent to said stator including a plurality of passages including an axially extending bore; armature means including a magnetic member and a piston member reciprocable within said axially extending bore and situated within the said lower body member; valve means, movable with said armature means in response to the magnetic field generated by said stator for permitting the outflow of fuel therefrom; said valve means partially situated within said lower body member and including a movable valve closure element having a valve face and a stationary member defining a valve seat; said valve means further including self aligning means to permit said valve face to align with and seal upon said valve seat; said self-aligning means comprising: a nut having a spherically shaped upper surface and secured to an end of said piston member extending from said lower body member; a cup-shaped valve cap having walls the end of which define said valve face and a bottom having an opening therethrough, said bottom including a lower surface having a conically shaped surface and a spherically shaped upper surface, said opening adapted to permit said valve cap to be mounted onto the said extending portion of said piston member; said self-aligning means further including a preload spacer having an upper surface and a bottom surface and a centrally located opening adapted to receive said piston member, said bottom of said preload spacer having a conically shaped lower surface and positioned in contacting engagement with said upper surface of said valve cap; and spring means for biasing said upper surface of said preload spacer towards an open condition.