Fuel injection pump for internal combustion engines

Details Fuel injection pump for internal combustion engines Fuel injection pump for internal combustion engines

1992-06-11

1993-12-28

Miller, Carl S.

Internal-combustion engines

Charge forming device

With fuel pump

123449, F02M 3704

Patent

active

052730174

ABSTRACT:
A fuel injection pump for internal combustion engines comprises a suction space, a fuel duct, an electrically actuated valve controlling the fuel duct, a fuel supply tank, a distributor having a distributing opening, a plurality of pressure ducts connectable with injection locations of an internal combustion engine via injection lines, a pump plunger which defines a pump work space connectable with the suction space during a suction stroke and during a control portion of the delivery stroke of the pump plunger via the fuel duct, while fuel is delivered from the fuel supply tank to the suction space connectable during a respective delivery stroke of the pump plunger via the distributor opening with one of the plurality of pressure ducts. The valve has a closing phase which determines a high pressure fuel delivery into the injection lines, a fuel return, and a bypass line is provided to a fuel return and branches from the fuel duct between the suction space and the valve.

REFERENCES:
patent: 4385614 (1983-05-01), Eheim
patent: 4437444 (1984-03-01), Yasuhara
patent: 4480619 (1984-11-01), Igashira
patent: 4530337 (1985-07-01), Laufer
patent: 4838233 (1989-06-01), Hayashi
patent: 4971012 (1990-11-01), Brunnel
patent: 5033443 (1991-07-01), Kato
patent: 5115783 (1992-05-01), Nakamura
Patent Abstracts of Japan, vol. 9, No. 313, 10 Dec. 1985 & JP, A 60 147 544, Mar. 8, 1983.

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