An arrangement 10 of a fuel pump 12 on the crankcase 14 of an internal combustion engine is disclosed. The pump has a housing 22 which encloses a camshaft bore 26, in which a camshaft 30 is arranged, and a compression bore 28 which guides a piston 44. The crank housing 22 encloses an inner space S14 and is provided with an opening 18 in which part of the pump 20 is engaged. An end of the camshaft 30F extends through the opening for connection to a driving means. The arrangement defines a flow path F which allows fluid communication joining the piston bore 28 to camshaft bore via the internal space of the crankcase S14. The arrangement allows pressure to balance either side of the cam follower and minimises the number of manufacturing steps. The invention extends to a fuel pump adapted to be part of the arrangement, which may be a diesel pump.
High pressure fuel pump
2019-05-29
Patent
Elektronische Ressource
Englisch
IPC: | F02M Zuführen von Brennstoff-Luft-Gemischen oder deren Bestandteilen bei Brennkraftmaschinen allgemein , SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / F02B INTERNAL-COMBUSTION PISTON ENGINES , Brennkraftmaschinen mit innerer Verbrennung mit Verdrängerwirkung / F04B Verdrängerkraft- und Verdrängerarbeitsmaschinen für Flüssigkeiten , POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS |
High‐Pressure Fuel Pump Design Technology
Wiley | 2019
|Komatsu high pressure fuel injection pump KP21
Kraftfahrwesen | 1990
|Komatsu High Pressure Fuel Injection Pump “KP21”
SAE Technical Papers | 1990
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