Pump-injector device for an internal combustion engine

Details Pump-injector device for an internal combustion engine Pump-injector device for an internal combustion engine

1981-07-24

1983-10-25

Myhre, Charles J.

Internal-combustion engines

Charge forming device

With fuel pump

123495, 123500, 239125, 239 95, B05B 900

Patent

active

044112386

ABSTRACT:
This device comprises a body provided with a bore in which a plunger is slidably mounted, this plunger is movable between a lower position in which it obturates injection nozzles provided through the bottom of the bore, and an upper position where it is spaced from the bottom. Metering means comprise a feed groove provided in the piston wall and opening on the tapered end thereof, this groove having an upper edge inclined to the piston axis. This upper edge co-operates with a fuel inlet port. A similar groove is provided in the piston wall, this groove having an inclined upper edge co-operating with a fuel discharge port. Fuel metering is achieved by rotation of the plunger about its axis.

REFERENCES:
patent: 1157315 (1915-10-01), Lemp
patent: 1252254 (1918-01-01), Fisher
patent: 2518901 (1950-08-01), King
patent: 3131866 (1964-05-01), Cummins
patent: 3241768 (1966-03-01), Croft
patent: 4280659 (1981-07-01), Gaal

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