FUEL INJECTION PUMPS FOR INTERNAL COMBUSTION ENGINES

The maximum quantity of fuel supplied by a fuel injection pump to an internal combustion engine operable with or without pressure-charging is set by limiting the travel of a fuel quantity adjusting member (2) by means of an adjusting device (11) which is subjected in a first direction to a force der...

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Bibliographic Details
Main Author KARL KONRATH
Format Patent
LanguageEnglish
Published 15.11.1989
Subjects
BLASTING
COMBUSTION ENGINES
CONTROLLING COMBUSTION ENGINES
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
LIGHTING
MECHANICAL ENGINEERING
SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF
WEAPONS
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Summary:The maximum quantity of fuel supplied by a fuel injection pump to an internal combustion engine operable with or without pressure-charging is set by limiting the travel of a fuel quantity adjusting member (2) by means of an adjusting device (11) which is subjected in a first direction to a force derived from a pressure (in chamber 14) which varies in dependence upon speed and in the opposite direction to a force derived from a control pressure (in chamber 23) which varies in dependence upon both speed and the density or pressure of the air fed to the engine. The speed dependence is provided by fuel supplied by a pump 18 to a suction chamber (17) of the fuel injection pump and used to pressurise chambers (14), (34) and (23). The dependence upon inlet air pressure is determined by a diaphragm 44 which adjusts the position of a control edge 30 to vary a discharge cross section 31 to control fuel flow from a line 25 to a return line 33.
Bibliography:Application Number: GB19870006854