Fuel-injecting apparatus for an internal combustion engine

Claim 1

FUEL INJECTION APPARATUS FOR AN INTERNAL COMBUSTION ENGINE PROVIDED WITH A COMBUSTION SPACE COMPRISING A BODY PROVIDED WITH A CAVITY, A COMMUNICATING CONDUIT FOR CONNECTING SAID CAVITY WITH A FUEL PUMP, A NOZZLE COMMUNICATING WITH SAID CAVITY FOR INJECTING THE FUEL FROM SAID CAVITY INTO SAID COMBUSTION SPACE, SAID NOZZLE BEING FORMED CONICALLY IN THE DIRECTION OF SAID COMBUSTION SPACE, A VALVE MEMBER SLIDABLY GUIDED IN SAID BODY AND EXTENDING THROUGH SAID CAVITY FOR SEALING THE COMMUNICATION THEREOF WITH SAID NOZZLE, RESILIENT MEANS FOR URGING SAID VALVE MEMBER INTO CLOSING POSITION, SAID VALVE MEMBER HAVING A SECTION LOCATED WITHIN SAID CAVITY AND SUBJECTED TO THE PRESSURE OF THEFUEL THEREIN FOR OPENING SAID VALVE MEMBER BY SAID PRESSURE, A FUEL-GUIDING MEMBER, A STEM HAVING A CONSTRICTED PORTION INTERMEDIATE BOTH ENDS THEREOF RIGIDLY CONNECTING SAID FUEL-GUIDING MEMBER, TO SAID VALVE MEMBER, THE END OF SAID STEM ADJACENT SAID FUEL GUIDING MEMBER SLOPING TOWARD SAID CONSTRICTED PORTION AND HAVING A DIAMETRIC DIMENSION SUBSTANTIALLY THE SAME AS THE DIAMETRIC DIMENSION OF SAID FUEL-GUIDING MEMBER, SAID FUEL-GUIDING MEMBER INCLUDING A CLEARLY DEFINED UPPER EDGE LOCATGED CLOSELY IN FRONT OF THE ORIFICE OF SAID NOZZLE WITH SAID VALVE MEMBER SEATED IN SAID CLOSING POSITION, SAID FUEL GUIDING MEMBER BEING OF SLIGHTLY SMALLER DIAMETER THAN SAID ORIFICE AND CONICALLY FORMED SIMILAR TO SAID NOZZLE AND ADAPTED TO ENTER SAID NOZZLE UPON LIFTING OF SAID VALVE MEMBER FROM ITS SEAT UNDER PRESSURE BY SAID FUEL FED INTO SAID CAVITY IN EXCESS OF THE IDLING AMOUNT TO PROVIDE AN ANNULAR SLOT FOR ISSUING A NARROW JET OF FUEL.