PISTON PUMP

The invention relates to a piston pump in particular a high pressure fuel pump comprising a housing (1) a piston and a drive shaft (2) having a cam section (3) on which the piston is at least indirectly supported via a guide roller (5) that is rotatably mounted in a roller plunger (4) wherein latera...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	MEIER GERHARD, GENTE ARNOLD, MEINZER DOMINIK, MAURER FRANK, SCHETTER MARKUS, DUTT ANDREAS, ALEKER JOCHEN, GREINER MATTHIAS
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COMBUSTION ENGINES HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF WEAPONS
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Beschreibung
Zusammenfassung:	The invention relates to a piston pump in particular a high pressure fuel pump comprising a housing (1) a piston and a drive shaft (2) having a cam section (3) on which the piston is at least indirectly supported via a guide roller (5) that is rotatably mounted in a roller plunger (4) wherein laterally on either of the two sides of the cam section (3) a rim (6) is provided that protrudes in the radial direction beyond the cam section (3) wherein the rim (6) tapers on one front face directed towards the guide roller (5) to an outer circumference of the rim (6) wherein the rim (6) is in particular conical so that an angular opening results wherein the cam roller comprises a convex curvature directed towards the rim (6) preferably with a radius (r). Alternatively also the rim can have a convex curvature and the roller can taper conically.