Distributor type fuel injection pump

Details Distributor type fuel injection pump Distributor type fuel injection pump

1980-04-14

1982-08-03

Myhre, Charles J.

Internal-combustion engines

Charge forming device

With fuel pump

123364, 123506, F02M 5934

Patent

active

043423019

ABSTRACT:
In a distributor type fuel injection pump including a load-responsive pressure adjusting device which is responsive to engine loads for allowing drainage of part of the fuel in the suction chamber of the pump into a zone under lower pressure in the pump when the engine is operated within a predetermined load range, a pressure setting valve is provided in a drainage passage forming part of the pressure adjusting device, which is adapted to open at a predetermined pressure. The pressure setting valve enables establishment of necessary fuel pressure for normal actuation of a fuel injection timing control device provided in the pump within a low engine speed (rpm) range even during operation of the pressure adjusting device.

REFERENCES:
patent: 3726608 (1973-04-01), Bostwick et al.
patent: 3943902 (1976-03-01), Skinner
patent: 4220128 (1980-09-01), Kobayashi
patent: 4273090 (1981-06-01), Hofer et al.

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