Liquid fuel injection nozzles

Details Liquid fuel injection nozzles Liquid fuel injection nozzles

1978-12-13

1980-02-05

Love, John J.

Fluid sprinkling, spraying, and diffusing

Fluid pressure responsive discharge modifier* or flow...

Fuel injector or burner

F02M 4702

Patent

active

041868846

ABSTRACT:
A fuel injection nozzle has a valve member biased to the closed position by a spring and a piston housed in a bore connected to the inlet of the nozzle by way of a non-return valve. A space between the piston and valve member is vented to a drain. In order to minimize leakage of fuel, the piston and the bore in which it is located define a groove which is connected to the fuel inlet so that any fuel leaking from the end of the piston subjected to the pressure of fuel at the inlet collects in the groove and returns to the inlet when the pressure of fuel at the inlet falls.

REFERENCES:
patent: 2595639 (1952-05-01), Chmura et al.
patent: 3797753 (1974-03-01), Fenne et al.
patent: 3831863 (1974-08-01), Fenne
patent: 3910503 (1975-10-01), Barber

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