Fuel injection pump for internal combustion engines

Details Fuel injection pump for internal combustion engines Fuel injection pump for internal combustion engines

1991-12-23

1993-07-13

Bertsch, Richard A.

Pumps

Expansible chamber type

Pumping member position controlled port

417289, 123503, F04B 704, F02M 5920

Patent

active

052267946

ABSTRACT:
A fuel injection pump having a pump piston in a bore of a pump cylinder, wherein the pump piston is rotatable for fuel control, and having a niche disposed in the pump cylinder for receiving a control slide, wherein the niche can be made by non-cutting shaping. The niche has a flat niche bottom, which changes into two oblique niche walls, which extend in two straight parallel niche walls facing one another, these parallel niche walls in turn, change into oblique faces and terminate in slideways, in which the control slide is guided against twisting by slide runners that simultaneously act as impact aprons. The niche is embodied by non-cutting shaping in such a way that its wall thickness relative to the cylindrical outer shape of the pump cylinder is embodied as virtually constant.

REFERENCES:
patent: 4811716 (1989-07-01), Guntert
patent: 4842497 (1989-06-01), Hafele

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