Fuel injection pump of distribution type

Details Fuel injection pump of distribution type Fuel injection pump of distribution type

1991-08-22

1992-09-08

Cross, E. Rollins

Internal-combustion engines

Engine speed regulator

Having condition responsive means with engine being part of...

123503, 123449, F02M 3704, F02D 700

Patent

active

051449269

ABSTRACT:
A fuel injection pump of the distribution type provided with a load timer is disclosed. This load timer includes a relief hole formed axially in a governor shaft, a first communication passage extending through a peripheral wall of the governor shaft surrounding the relief hole, and a second communication passage extending through a peripheral wall of a governor sleeve. As a load of an engine increases, the governor sleeve is retracted, and the area of communication between the first and second communication passages is decreased, so that the pressure within a pump chamber is increased. As a result, a fuel injection timing determined by a main timer is advanced. The injection pump further includes an atmospheric pressure compensation mechanism which adjusts the position of pivotal movement of a first lever in response to the decrease of the atmospheric pressure so as to move a control sleeve to decrease a fuel injection amount, and also so as to retract the governor sleeve to advance the fuel injection timing.

REFERENCES:
patent: 3960127 (1976-06-01), Vuaille
patent: 4308834 (1982-01-01), Eheim
patent: 4384560 (1983-05-01), Jager
patent: 4432321 (1984-02-01), Matsuda et al.
patent: 4449500 (1984-05-01), Kawatei et al.
patent: 4469066 (1984-09-01), Yuzawa
patent: 4508080 (1985-04-01), Nakamura
patent: 4513715 (1985-04-01), Braun et al.
patent: 4562810 (1986-01-01), Miyaki
patent: 4664081 (1987-05-01), Eheim et al.
patent: 4819606 (1989-04-01), Kawano

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