Prestroke controller for engine fuel injection pump

Details Prestroke controller for engine fuel injection pump Prestroke controller for engine fuel injection pump

1995-07-27

1997-04-08

Miller, Carl S.

Internal-combustion engines

Charge forming device

With fuel pump

123300, 123373, F02M 3704

Patent

active

056178301

ABSTRACT:
A prestroke controller 31 for an engine fuel injection pump 30 utilizes a magnetic coupling 26 and, by taking advantage of the fact that the secondary side (driven side internal magnet) of the magnetic coupling can be controlled to a desired position without being driven by force from a flyweight 11 on the primary side (driving side external magnet), not only secures speed timer characteristics but also provides a greater degree of freedom in determining the injection timing advance characteristic. The prestroke controller 31 includes the magnetic coupling 26 as a member of a displacement transfer section provided between the flyweight 11 and the timing control rod 6 and also includes an add-on device 36 for injection timing advance adjustment which can be engaged with or disengaged from the timing control rod 6 and is capable of controlling the prestroke independently of the magnetic coupling 26.

REFERENCES:
patent: 3698373 (1972-10-01), Nagasawa
patent: 3827419 (1974-08-01), Isomura
patent: 4294210 (1981-10-01), Bassoli
patent: 4619233 (1986-10-01), Yamaguchi
patent: 4630586 (1986-12-01), Guntert
patent: 4754737 (1988-07-01), Ishida
patent: 4825842 (1989-05-01), Steiger
patent: 5382792 (1995-01-01), Hurst et al.
Patent Abstract of Japan, vol. 16, No. 10 (M-1199), 13 Jan. 1992 & JP-A-03 233144 (Zexel Corp.) 17 Oct. 1991.

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