Fuel injection pump

Details Fuel injection pump Fuel injection pump

1995-09-18

1997-07-15

Moulis, Thomas N.

Internal-combustion engines

Charge forming device

With fuel pump

417499, F02M 3704, F02M 5920

Patent

active

056473265

ABSTRACT:
In a fuel injection pump equipped with a plunger producing preflow effect, pressurized fuel is delivered at least in the low engine speed region by driving the plunger using a region of a cam on the decreasing velocity side of its maximum velocity point. As a result, the fuel delivery rate is reduced during low-speed engine operation and increased during high-speed engine operation, providing an ideal fuel delivery rate for an indirect-injection type engine equipped with swirl chambers or auxiliary chambers.

REFERENCES:
patent: 4975029 (1990-12-01), Hatz
patent: 5209208 (1993-05-01), Siebert et al.
patent: 5219280 (1993-06-01), Yashiro
patent: 5286178 (1994-02-01), Schaef
patent: 5487651 (1996-01-01), Guentert et al.
patent: 5558067 (1996-09-01), Blizard et al.
Patent Abstracts of Japan Fuel Injection Pump, vol. 18 No. 283, May 30, 1994.

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