Fuel injection system in particular unit fuel injector, for inte

Details Fuel injection system in particular unit fuel injector, for inte Fuel injection system in particular unit fuel injector, for inte

1990-04-13

1991-10-15

Miller, Curt Stuart

Internal-combustion engines

Charge forming device

Fuel injection system

123496, 239 88, 239 91, F02M 700

Patent

active

050564889

ABSTRACT:
A fuel injection system for internal combustion engines, having a pump chamber defined by the pump piston and a pressure chamber adapted to communicate with the injection nozzle; and further including an intermediate piston disposed between the two work chambers, in which during the compression stroke of the intermediate piston a throttle conduit which branches off from the pump chamber can be opened, in order to allow some of the fluid to flow out of the pump chamber while leaving the injection quantity located in the pressure chamber unchanged, to thereby attain a lengthening of the injection duration.

REFERENCES:
patent: 4235374 (1980-11-01), Walter et al.
patent: 4407253 (1983-10-01), Bauer
patent: 4489886 (1984-12-01), Kato
"Bosch-Verteilereinspritzpumpe mit Fliehkraftregler", Bosch Technische Berichte, Band 6, 1978, Heft 2, Bild 15 auf Seite 98 und Seite 99, translation of AR: Bosch-Distributor Injection Pump with Centrifugal Governor, Bosch Technical Instructions, vol. 6, 1978, No. 2, Fig. 15 on pp. 98 and 99.

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