Sloping-edge-controlled fuel injection pump for internal combust

Details Sloping-edge-controlled fuel injection pump for internal combust Sloping-edge-controlled fuel injection pump for internal combust

1990-07-12

1992-03-24

Miller, Carl Stuart

Internal-combustion engines

Charge forming device

With fuel pump

123300, 417494, F02M 3704

Patent

active

050978128

ABSTRACT:
The invention relates to a sloping-edge-controlled fuel injection pump for internal combustion engines, in particular as a direct injector for commercial vehicles. A cam-operated pump plunger, defining the pump working chamber and having an upper control edge effecting the start of delivery and a lower sloping control edge effecting the end of delivery, is guided axially and in a rotationally movable manner in the pump cylinder and has two peripheral grooves which, with two bypasses in the pump cylinder, interrupt the delivery, each bypass, in the projection perpendicular to the axis of the pump cylinder, partly overlapping feed bores arranged in the pump cylinder.

REFERENCES:
patent: 2565681 (1951-08-01), Fleck
patent: 4367706 (1983-01-01), Scheying
patent: 4445828 (1984-05-01), Sontheimer
patent: 4448167 (1984-05-01), Schmid
patent: 4619233 (1986-10-01), Yamaguchi
patent: 4630586 (1986-12-01), Gontert
patent: 4674461 (1987-06-01), Hiyama
patent: 4830587 (1989-05-01), Guntert
patent: 4881506 (1989-11-01), Hoecker

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