Fuel injection device

Details Fuel injection device Fuel injection device

1991-04-22

1991-11-26

Bertsch, Richard A.

Pumps

Expansible chamber type

Pumping member position controlled port

123506, 417499, 417552, F04B 704

Patent

active

050678809

ABSTRACT:
A fuel injector for diesel engines, having at least one pump plunger (1), which is sealingly guided in a plunger bushing (2) and, together with said bushing, defines a high-pressure space (5). The pump plunger (1) has an internal suction valve (6) which creates a fuel injection pump having a small dead volume in the high-pressure region and low construction cost. The suction valve (6) may be provided with a cone-shaped compression spring (7) disposed in the high-pressure region (5) or with a stroke limiting stop (28, 28a).

REFERENCES:
patent: 2783713 (1957-03-01), Klein et al.
patent: 2928352 (1960-03-01), Aldinger
patent: 3058455 (1962-10-01), Hofer et al.
patent: 3311062 (1967-03-01), Knapp et al.
patent: 4445434 (1984-05-01), Marion
patent: 4484866 (1984-11-01), Runkle
patent: 4829646 (1989-05-01), Cigolotti et al.

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