Fuel injection device

Details Fuel injection device Fuel injection device

1990-04-02

1992-06-30

Bertsch, Richard A.

Pumps

Expansible chamber type

Pumping member position controlled port

123458, 123506, 25112916, 417440, F04B 3910

Patent

active

051258072

ABSTRACT:
A fuel injection device for diesel engines, having at least one pump plunger (4), which is sealingly guided in a plunger bushing (5) and forms, together with said plunger bushing (5), a high-pressure space (11) that is connected to a low-pressure space (13) by means of a control element during the downward motion of the fuel pump plunger, said high-pressure space (11) being placed in free flow communication with an injection valve (49) via an injection line 48. The use of a continuously open flow connection between the high-pressure space 11 and the injection valve 49 minimizes dead space thereby permitting development of high injection pressures.

REFERENCES:
patent: 2700397 (1955-01-01), Compton
patent: 3701366 (1972-10-01), Tirelli et al.
patent: 3779225 (1973-12-01), Watson et al.
patent: 4445484 (1984-05-01), Marion
patent: 4616675 (1986-10-01), Amrhein
patent: 4619239 (1986-10-01), Wallenfang
patent: 4785787 (1988-11-01), Riszk et al.
patent: 4840162 (1989-06-01), Brunel
patent: 4971116 (1990-11-01), Suzuki et al.
patent: 4988967 (1991-01-01), Miller et al.

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