Fuel injection pump

Details Fuel injection pump Fuel injection pump

1994-02-25

1995-05-09

Miller, Carl S.

Internal-combustion engines

Charge forming device

With fuel pump

12317917, F02M 3704

Patent

active

054130794

ABSTRACT:
A fuel injection pump in which the injection onset is varied by means of an injection adjuster, which has a two part adjusting piston acted upon by a hydraulic control pressure, which piston is adjustable counter to a restoring spring and by means of a bolt, engages the cam drive of the fuel injection pump in order to adjust the injection onset. To reduce the highest pressure in the high-pressure chamber of the fuel injection pump and to form the course of injection pressure, the adjusting piston is embodied in two parts, with a first piston that is adjustable relative to the second piston counter to a compression spring and the second piston is connected with the bolt. This makes possible a deflection motion of the piston relative to the second piston and a reduction in the pump piston stroke speed.

REFERENCES:
patent: 2910975 (1959-11-01), Evans
patent: 3147746 (1964-09-01), Hofer
patent: 3486492 (1969-12-01), Lehnerer
patent: 4355621 (1982-10-01), Yasuhara
patent: 4368709 (1983-01-01), Yasuhara
patent: 4493302 (1985-01-01), Kawamura

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