Internal-combustion engines – Charge forming device – With fuel pump
Patent
1981-06-26
1984-01-03
Lazarus, Ira S.
Internal-combustion engines
Charge forming device
With fuel pump
239 88, F02M 5920
Patent
active
044237154
ABSTRACT:
A pump-injector assembly comprises a plunger slidable in a bore. The plunger has a first or upper position in which fuel is admitted into the lower part of the injector bore through an inlet port, and a second or lower position in which a tapered lower end of the plunger obturates fuel spray nozzles provided through the bottom of the bore. A recess is provided in the plunger wall and communicates with the bottom of the bore through a longitudinal passageway of the plunger. A ramp inclined to the plunger axis is formed by the upper edge of the recess and co-operates with a fuel outlet port located on the wall of the injector bore to control the beginning of the injection. Rotation of the plunger relative to this outlet port permits adjustment of the amount of injected fuel charge.
REFERENCES:
patent: 1847718 (1932-03-01), Herr
patent: 2147390 (1939-02-01), Vaudet
patent: 2173812 (1939-09-01), Bischof
patent: 2317618 (1943-04-01), King
patent: 2635590 (1953-04-01), Simon
patent: 2986134 (1961-05-01), Bernard
patent: 3368491 (1968-02-01), Shook et al.
patent: 3667437 (1972-06-01), Dreisin
patent: 4146178 (1979-03-01), Bailey
patent: 4327694 (1982-05-01), Henson et al.
Briand Louis
Ecomard Andre
Pinchon Philippe
Institut Francais du Pe'trole
Lazarus Ira S.
Moy Magdalgn
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