Fuel injection pump

Details Fuel injection pump Fuel injection pump

1994-02-25

1995-12-12

Gluck, Richard E.

Pumps

Expansible chamber type

Pumping member position controlled port

123449, F02M 5100, F02M 5302

Patent

active

054744300

ABSTRACT:
A fuel injection pump of the distributor type for a multicylinder internal combustion engine has a pump piston that both rotates and is driven in the lifting direction for generating a fuel injection pressure in a pump work chamber, and a magnet valve that blocks and unblocks the pump work chamber in the direction of a relief conduit for designating the beginning and end of pumping. The rotational movement of the pump piston is generated by a drive shaft and its lifting motion is generated by a cam drive. For use of the fuel injection pump in an engine having more than four cylinders, the cam drive has a first cam disk connected to the pump piston in a manner fixed against relative rotation with front cams, and a second cam disk connected to the drive shaft in a manner fixed against relative rotation with front cams. An unrotatable but axially displaceable roller holder supports rollers that roll off respectively one of the cam disks.

REFERENCES:
patent: 2699766 (1955-01-01), Fodor
patent: 2759422 (1956-08-01), Miller
patent: 4470763 (1984-09-01), Yasuhara
patent: 4793313 (1988-12-01), Paganon et al.

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