Fuel injection pump for supercharged diesel internal combustion engines, in particular a distributor-type injection pump
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United States of America Patent
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-
Jan 5, 1982
Grant Date -
N/A
app pub date -
Sep 28, 1979
filing date -
Nov 2, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A fuel injection pump is disclosed for supercharged Diesel internal combustion engines, in particular, a distributor-type injection pump in which the full-load fuel supply quantity is limited by means of a variable stop, controlled in accordance with rpm and air quantity. The injection pump includes a control apparatus whose control member forms a three-dimensional cam, which is rotated by a charge pressure control element and is displaced in the longitudinal direction by a hydraulic adjustment piston actuated in accordance with the rpm level. The three-dimensional surface of the cam includes protuberances whose profile is picked up and transmitted to a full-load stop of an rpm regulator located in an interior chamber of the injection pump, while the adjustment piston, in abutting relationship with the three-dimensional cam, is actuated for axial movement by the pressure of the fuel located in the interior chamber of the pump, and controlled in accordance with rpm.
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