Fuel injection system and apparatus for use therein

Abstract

Abstract A "UNIVERSAL" FUEL INJECTION SYSTEM ADAPTABLE FOR USE WITH ANY OF A VARIETY OF TYPES OF DIESEL ENGINES, IN WHICH THE TIMING AND DURATION OF THE FUEL INJECTION INTERVALS, AS WELL AS THE QUANTITY OF FUEL INJECTED, CAN READILY BE SELECTED OR ADJUSTED TO QUIT THE REQUIREMENTS OF ANY OF SAID ENGINES. A SEPARATE FUEL INJECTOR FOR EACH CYLINDER OF THE ENGINE IS SUPPLIED WITH DISCRETE METERED QUANTITIES OF FUEL AND A PISTON DISCHARGES TO FUEL THROUGH A NOZZLE IS RESPONSE TO HIGH PRESSURE FROM A COMMON RAIL, UPON ACTUATION BY AN ELECTRICAL TIMING SIGNAL THE TIMING SIGNAL IS CONTROLLABLE, AS IT IS THE SOURCE OF THE ME- TERED FUEL, THEREBY TO PERMIT INDPENDENT SELECTION AND ADJUSTMENT OF TIMING AND FUEL QUANTITY, AND VARIATION OF THE COMMON RAIL PRESSURE PRODUCES AN INVERSE VARIATION IN THE DURATION OF EACH INJECTION DISCHARGE. INJECTION ACCURACY AND EFFICIENCY ARE ENHANCED, AND SECONDARY INJECTION AVOIDED, BY USE OF A SPILL-COLLECTING ACCUMULATOR CONNECTED TO THE FUEL CHAMBER IN EACH INJECTOR TO RECEIVE THE SPILL AT THE END OF THE INJECTION STROKE AND RETURN THE SPILL TO THE CHAMBER BEFORE THE NEXT INJECTION OPERATION.

Inventors

• 👤 Russel B Hussey
• 👤 John A Kimberley
• 👤 Warren E Snyder

Bibliographic Details