Fuel injection valve

Abstract

Abstract A FUEL INJECTION VALVE FOR INTERNAL COMBUSTION ENGINE HAS A HOUSING HAVING A FUEL INLET AND A FUEL OUTLET. THE HOUSING HAS A VALVE SEAT HAVING AN AXIS AT THE FUEL OUTLET A VALVE MEMBER IS ARRANGED WITHIN THE HOUSING AND AXIALLY ALIGNED WITH THE VALVE SEAT AND MOVABLE ALONG THE AXIS THE VALVE SEAT BETWEEN A FIRST POSITION SPACED FROM THE VALVE SEAT AND A SECOND POSITION ENGAGING THE VALVE SEAT. AN ELECTROMAGNET IS PROVIDED WITHIN THE HOUSING WHICH INCLUDES AN ARMATURE CONNECTED TO THE VALVE MEMBER AND TOGETHER FORMING A UNIT FOR MOVING THE VALVE MEMBER AND SAID ELECTROMAGNET IS ENERGIZED FROM THE SECOND POSITION TO THE FIRST POSITION. A SPRING, ANCHORED AT ONE END OF THE HOUSING, COOPERATES WITH THE UNIT AND CONNECTED THERETO TO YIELDABLY MAINTAIN THE VALVE MEMBER IN THE SECOND POSITION. TWO MEMBRANES ARE PROVIDED WITHIN THE HOUSING WHICH ARE SPACED FROM ONE ANOTHER IN AXIAL DIRECTION OF THE VALVE MEANS. THE MEMBRANE BEING CONNECTED TO THE PARALLEL PLANES, EACH MEMBRANE BEING CONNECTED TO THE UNIT AND TO THE HOUSING FOR MAINTAINING A VALVE MEMBER IN AXIAL ALIGNMENT WITH THE VALVE SEAT. THE ELECTROMAGNET HAS A CENTRAL CORE COAXIAL WITH THE VALVE SEAT AXIS AND A COAXIAL ANNULAR POLE RING. THE ARMATURE HAS A PORTION WHICH MADE FROM SOFT IRON AND WHICH FACES THE CORE AND THE POLE RING. THE ARMATURE PORTION FACING THE CORE AND THE POLE RING IS IN THE SHAPE OF A FLAT DISK, THE REST OF THE ARMATURE BEING MADE OF A LIGHT-WEIGHT METAL.

Inventors

• 👤 Hans Sturmer

Bibliographic Details