Electric control valve

Abstract

An electrically operated control valve adapted to fit within a bore of a cooperating apparatus. The valve including an interchangeable stator and lower body member. The valve further includes a valve means having a swingable self-aligning valve closure element.

What is claimed is: 
     
       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 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. .Iadd.   
     
     
       2.  A control valve adapted to be received within a bore of a cooperating apparatus, the control valve comprising: a lower body member comprising a plurality of passages including a axially extending bore;   armature means including a magnetic member movable in response to a magnetic field and a piston member movable therewith, reciprocable within said axially extending bore and situated within said lower body member;   a valve seat positioned about one of said plurality of passages;   valve means, movable with said armature means for permitting the flow of fluid through said passage, and partially situated within said lower body member and including self-aligning means for aligning with and seating 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 movable closure element comprising: walls the end of which define a valve face and a bottom having an opening therethrough, said bottom including a conically shaped lower surface adapted to engage said upper surface of said nut and a spherically shaped upper surface, said opening adapted to permit said closure element to be mounted onto 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 positionable in contacting engagement with said upper surface of said closure element; and   spring means for biasing said upper surface of said preloas spacer towards an open condition. .Iaddend. .Iadd.     
     
     
       3.  The valve as defined on claim 2 wherein said magnetic field is generated by a stator. .Iaddend. .Iadd.4. A control valve comprising; an electromagnetically actuated armature movable relative to a flow passage;   a valve seat disposed about said flow passage;   valve means situated in said flow passage comprising a valve closure element, including a valve face, movable with said armature and further including self-aligning means for permitting said valve face to align with and seal upon said valve seat wherein said self-aligning means comprises:   a first member having a spherically shaped upper surface secured to an extending portion of said armature;   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 conically shaped lower surface in contacting engagement with the upper surface of said first member and a spherically shaped upper surface, said opening adapted to permit said valve cap to receive said extending portion of said armature;   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 extending portion, 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. .Iaddend. .Iadd.5.  The control valve as defined in claim 4 further including means for biasing said valve closure element in an open condition. .Iaddend. .Iadd.6. The control valve as defined in claim 5 wherein said biasing means includes: a spring for biasing said upper surface of said preload spacer towards an open condition. .Iaddend. .Iadd.7. The control valve as defined in claim 4 wherein said first member comprises a nut received upon said extending portion. .Iaddend. .Iadd.8. The control valve as defined in claim 7 wherein said armature includes a magnetically attractable portion situated in an extension of said flow passage and a piston member depending therefrom, said piston member defining the extending portion of said armature. .Iaddend.