Fuel injection apparatus

Details Fuel injection apparatus Fuel injection apparatus

1990-08-01

1991-09-03

Bertsch, Richard A.

Pumps

With condition responsive pumped fluid control

417440, 417462, 123447, 123506, F04B 4902

Patent

active

050448935

ABSTRACT:
A fuel pumping apparatus of the rotary distributor type includes a spill passage 20 connected with the bore 12 which houses the pumping plungers 9. A seating 22 is defined about the spill passage and a valve member 23 is provided for cooperating with the seating. A piston 25 is coupled to the valve member and is slidable in a cylinder. The piston defines a surface against which fuel under pressure from the bore 12 can act to lift the valve member from the seating. The application of fuel under pressure to the surface of the piston is controlled by an electro-magnetically operable control valve 32A.

REFERENCES:
patent: 4474158 (1984-10-01), Mowbray
patent: 4691679 (1987-09-01), Lakin
patent: 4920940 (1990-05-01), Harris et al.
patent: 4922944 (1990-06-01), Glanvall

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