Fuel injection pumping apparatus

Details Fuel injection pumping apparatus Fuel injection pumping apparatus

1988-02-03

1989-07-04

Miller, Carl Stuart

Internal-combustion engines

Engine speed regulator

Having condition responsive means with engine being part of...

123450, F02M 3900

Patent

active

048440337

ABSTRACT:
A fuel injection pumping apparatus for supplying fuel to a compression ignition engine has an annular cam ring which has internal cam lobes for imparting inward movement through cam followers respectively to pumping plungers mounted in a rotary distributor member. Stop rings are mounted alongside the cam ring to determine the maximum outward movement of the plungers. The stop rings are angularly adjustable to enable the maximum amount of fuel supplied to the engine to be varied. Two adjusting devices are provided the first being a piston which is subject to a fluid pressure varying with speed. The piston is biased by a spring and sets the stop rings to allow an excess of fuel for engine starting purposes and the second is a diaphragm assembly responsive to the air pressure in the engine inlet manifold. In order to save space the piston is slidable within a housing which also accommodates the diaphragm assembly and the diaphragm assembly is coupled to the stop rings by means of a push rod which passes through an aperture in the piston.

REFERENCES:
patent: 3077823 (1963-02-01), Parks
patent: 3726263 (1973-04-01), Kemp
patent: 3742925 (1973-07-01), Gordon
patent: 4149507 (1979-04-01), Little
patent: 4154204 (1979-05-01), Bonin
patent: 4380223 (1983-04-01), Jefferson
patent: 4474157 (1984-10-01), Skinner
patent: 4640247 (1987-02-01), Bruning

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