Fuel injection valve for internal combustion engines

Details Fuel injection valve for internal combustion engines Fuel injection valve for internal combustion engines

1996-06-26

1998-02-17

Weldon, Kevin

Fluid sprinkling, spraying, and diffusing

Fluid pressure responsive discharge modifier* or flow...

Fuel injector or burner

239600, F02M 4700

Patent

active

057183864

ABSTRACT:
A fuel injection valve for internal combustion engines, with a valve body tightened on a valve retaining body, a valve member is guided in a bore of the valve body so that the valve member can move axially and in which the bore has a radially enlarged pressure chamber into which at least one supply conduit which extends beside the bore feeds. An adjusting nut which braces the valve body against the valve retaining body with an inner, conically embodied annular shoulder rests against a conical annular step of the valve body. The annular step is disposed at a level of the pressure chamber. In order to achieve a precisely localized and reliable transmission of radial clamping forces onto the valve body, the angle (.alpha.D) formed by the conical annular step on the valve body with the valve member axis is smaller than the angle (.alpha.S) formed by the conical annular shoulder of the adjusting nut with this axis. An annular edge of the valve body, which is formed between the radially inner, lower end of the annular step and an annular face end, is continuously exposed.

REFERENCES:
patent: 4635854 (1987-01-01), Ishibashi
patent: 4669668 (1987-06-01), Ogawa
patent: 5165607 (1992-11-01), Stevens
patent: 5205492 (1993-04-01), Khinchuk

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