Fuel injector device and method of producing the same

Details Fuel injector device and method of producing the same Fuel injector device and method of producing the same

1991-02-13

1992-05-05

Dolinar, Andrew M.

Internal-combustion engines

Charge forming device

Fuel injection system

123432, 298901, 29890142, 72377, 239492, 23953312, 239601, F02M 5108, B21K 2108

Patent

active

051098237

ABSTRACT:
A fuel injector device has a fuel swirling element disposed upstream of a valve seat and capable of imparting a swirling force to a fuel supplied thereto, a fuel injection nozzle orifice disposed downstream of the valve seat, and a fuel distributing adapter disposed downstream of the fuel injection nozzle orifice and capable of distributing the flow of the fuel injected by the fuel injection nozzle orifice in two directions. The adapter has an axial fuel passage having a fuel inlet of a diameter greater than that of the injection orifice and an outlet end of a substantially "8"-shape having a minimum diameter smaller than that of the inlet end. The adapter can be formed by preparing a blank having an axial fuel passage and then conducting a plastic work by a punch press on an end face of the blank so as to restrict the outlet end of the fuel passage.

REFERENCES:
patent: 3150442 (1964-09-01), Straw et al.
patent: 3528613 (1970-09-01), Berlyn
patent: 3858812 (1975-01-01), Williams et al.
patent: 4317357 (1982-03-01), Moen
patent: 4519370 (1985-05-01), Iwata
patent: 4773374 (1988-09-01), Kiuchi et al.
patent: 5018501 (1991-05-01), Watanabe et al.

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