Fuel injection pump for internal combustion engines

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

1996-11-15

1997-12-02

Moulis, Thomas N.

Internal-combustion engines

Charge forming device

Fuel injection system

251355, F07M 4100

Patent

active

056924755

ABSTRACT:
A fuel injection pump for internal combustion engines which has a moving part supported in a housing bore and on its jacket face on one side, has an exit opening that is under high pressure, and whose bearing is improved by virtue of the fact that at least one closed annular groove is provided on the jacket face of the part or in the wall of the housing bore, axially adjacent to the exit opening. As a result, a more even pressure distribution of the pressure field prevailing in the regions of the exit opening is achieved on the circumference of the moving part and as a result, a less damage prone, improved bearing with great high pressure tightness of the moving part is provided.

REFERENCES:
patent: 3096070 (1963-07-01), Wolfensperger
patent: 4522174 (1985-06-01), Babitzka et al.
patent: 5207201 (1993-05-01), Schlagmuller
patent: 5465691 (1995-11-01), Capaldo

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