Fuel injection nozzle for internal combustion engines

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

1982-05-20

1985-07-02

Love, John J.

Fluid sprinkling, spraying, and diffusing

Terminal outlet formed between parts mounted for relative...

Spray fluid pressure responsive discharge modifier

2395334, 2395339, B05B 132

Patent

active

045263230

ABSTRACT:
A fuel injection nozzle for internal combustion engines having a hollow needle in which a valve needle is displaceably supported, which cooperates with an internal valve seat of the hollow needle. Associated with the valve needle are a valve spring and a stop attached to the housing, which restrain the valve needle with respect to the hollow needle as it moves in the opening direction, thus opening the valve. The closing movement of the hollow needle is limited by a stop on the nozzle body, which with a counterpart shoulder on the hollow needle efficaciously forms a shield with respect to the combustion chamber for the bearing gap between the hollow needle and the nozzle body. The hollow needle may advantageously be embodied as a closing member opening outward and cooperating with the nozzle body in order to control further injection openings. The injection nozzle has the advantage that operation is possible without leaking oil, with two injection hole cross sections being opened in a time-controlled manner effected via the needle stroke.

REFERENCES:
patent: 2063709 (1936-12-01), Taylor
patent: 4394972 (1983-07-01), Potter

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