Fuel injection pump

Details Fuel injection pump Fuel injection pump

1978-01-27

1982-09-14

Myhre, Charles J.

Internal-combustion engines

Charge forming device

Fuel injection system

123459, 123503, 123505, 123506, 417279, 417282, F02M 5934

Patent

active

043489982

ABSTRACT:
A fuel injection pump for an internal combustion engine including a low pressure sump and a sump piston, reciprocating in a cylinder, for imparting elevated pressure to the fuel for delivery to injection valves. The pressure chamber in the pump cylinder can be opened to the sump at some adjustable point of the piston stroke to limit fuel delivery. A secondary conduit between the pressure chamber and the sump includes a flow throttle that variably restricts the return flow of fuel as adjusted by fluid pressure which is regulated by a secondary fuel control mechanism. This mechanism is subject to closed-loop control via an air flow rate meter disposed in the induction tube and also acts as a limiting stop for the baffle plate of the air flow rate meter.

REFERENCES:
patent: 1267460 (1918-05-01), Salfeld
patent: 1974851 (1934-09-01), Hurst
patent: 3614944 (1971-10-01), Ulbing
patent: 3667438 (1972-06-01), Moulin et al.
patent: 3699939 (1972-10-01), Eckert et al.
patent: 4069799 (1978-01-01), Krainski et al.
patent: 4073275 (1978-02-01), Hofer et al.

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