Fuel injection pump having means for retarding the fuel injectio

Details Fuel injection pump having means for retarding the fuel injectio Fuel injection pump having means for retarding the fuel injectio

1978-07-26

1980-04-08

Freeh, William L.

Pumps

With condition responsive pumped fluid control

Plural separate sensing means for a single fluid controller

417294, 417292, 123140MC, 123179L, F04B 4900, F02M 5924, F02M 5936

Patent

active

041970594

ABSTRACT:
FIGS. 1 and 1a show a fuel injection pump assembly having an axially and rotatably mounted fuel metering sleeve valve 60 rotated by an engine driven pumping member 34 whereby the valve helix 68 selectively covers and uncovers a fuel spill hole 74 leading to a fuel delivery valve 82, the pump having a centrifugal injection timing advance mechanism 108, 110, 112 connecting the pumping member 34 and the metering valve by a pin and slot type connection permitting an angular rotation of the metering valve relative to the pumping member to advance the position of the helix 68 relative to the spill port 74 per revolution of the pumping member, and other means 170, 172, 95 operable at will to retard the fuel injection timing schedule regardless of the position of the injection timing advance mechanism.

REFERENCES:
patent: 3635603 (1972-01-01), Eheim
patent: 3640259 (1972-02-01), Garcia
patent: 3777730 (1973-12-01), Gates

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