Fuel filter in a fuel injection apparatus for internal combustio

Details Fuel filter in a fuel injection apparatus for internal combustio Fuel filter in a fuel injection apparatus for internal combustio

1993-09-24

1994-11-01

Merritt, Karen B.

Fluid sprinkling, spraying, and diffusing

Unitary injection nozzle and pump or accumulator plunger

239575, 239DIG23, 210172, 2104164, 210446, 210451, F02M 5700, F02M 5702, F02M 5944, F02M 5100

Patent

active

053601645

ABSTRACT:
A fuel injection apparatus for internal combustion engines, having a pump piston, axially guided in a cylinder bore of a pump housing, driven in a reciprocating manner by a cam drive; the pump piston defines a pump work chamber with its face end. The pump work chamber communicates with an injection valve via a pressure conduit and fuel from a reservoir is fed in and removed via a fuel line that has a feed pump; the triggering of the supply onset and end of supply of the unit fuel injector is achieved by means of a magnet valve inserted in the feed line in the region of the pump housing. In order to prevent the deposit of dirt particles in the pump, the unit fuel injector has a fuel filter in the pump housing, which is inserted in a diversion chamber below the magnet valve, and upstream of which a baffle plate is provided in the direction of the magnet valve to protect the filter from the intense diversion stream.

REFERENCES:
patent: 4392672 (1983-07-01), Deckard
patent: 4540122 (1985-09-01), Teerman
patent: 4565319 (1986-01-01), Potter
patent: 4572433 (1986-02-01), Deckard
patent: 4618095 (1986-10-01), Spoolstra
patent: 4811715 (1989-03-01), Djordjevic et al.
patent: 4941612 (1990-07-01), Li

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