COMBUSTION ENGINES IMPROVING THE FUEL INJECTION CHARACTERISTICS OF INTERNAL IMPROVING THE FUEL INJECTION CHARACTERISTICS OF INTERNAL COMBUSTION ENGINES

摘要

A method and apparatus for improving the fuel injection characteristics of internal combustion engine means, particularly in relation to diesel engines operating on the spaced burning loci principle as featured in United States Kruckenberg et al. U.S. Pat. No. 3,543,735. associated This improvement is practiced in systems where the time increment of injection of an injection nozzle is longer than the time increment of the pumping stroke of a fuel pump. In such systems, at relatively lower engine speed and/or load conditions, the volume of a fuel increment displaced by a fuel pump during each working engine stroke is increased and a portion of fuel is diverted between the fuel pump piston means and injection nozzle means of the engine. In a system such as this, at relatively higher engine speed and/or load conditions, a relatively lower volume of fuel is displaced during each pumping increment of the fuel pump and at least the full diversion of fuel does not take place.