Fuel injection nozzle for internal combustion engines

Details Fuel injection nozzle for internal combustion engines Fuel injection nozzle for internal combustion engines

1983-05-05

1985-05-14

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Fluid pressure responsive discharge modifier* or flow...

Fuel injector or burner

F02M 4702

Patent

active

045167303

ABSTRACT:
A fuel injection nozzle for internal combustion engines is proposed which has a stepped piston which converts a medium pressure in the fuel inflow line into high pressure in accordance with the ratio between its piston surface areas. The stepped piston and the high-pressure chamber are disposed to surround the valve needle in accordance with the invention, resulting in a space-saving embodiment. The closing spring of the valve needle can be advantageously accommodated in the high-pressure chamber and can simultaneously act as the return spring for the stepped piston so that a separate part for that purpose can be dispensed with.

REFERENCES:
patent: 4205789 (1980-06-01), Raufeisen
patent: 4215821 (1980-08-01), Eblen

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