Fuel i.e. ethanol, pump for motor vehicle, has brushless electric motor provided as rotary drive for pump wheel, and including stator unit that is completely covered with plastic material, where motor is arranged in pump housing

The fuel pump has a pump housing (3) in which a pump wheel (23) and a brushless electric motor (2) are arranged. The motor is provided as a rotary drive for the pump wheel. The motor has a stator unit (4) that is completely covered with a plastic material (30). The stator unit is jar-shaped and has...

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Bibliographische Detailangaben
Hauptverfasser:	SCHNEIDER, HELMUT, BERBATOV, NIKOLAY, BOETTGER, AXEL, SUZUKI, YUZURU, NEUMANN, RUDOLF, BORSAI, PETER
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	BLASTING COMBUSTION ENGINES CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DYNAMO-ELECTRIC MACHINES ELECTRICITY GENERATION HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INDEXING SCHEME FOR ASPECTS RELATING TONON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES ORJET-PROPULSION PLANTS INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUSSUBCLASSES OF CLASSES F01-F04 LIGHTING MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT PUMPS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF WEAPONS
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Beschreibung
Zusammenfassung:	The fuel pump has a pump housing (3) in which a pump wheel (23) and a brushless electric motor (2) are arranged. The motor is provided as a rotary drive for the pump wheel. The motor has a stator unit (4) that is completely covered with a plastic material (30). The stator unit is jar-shaped and has an open end (18) and a closed end (14). A stator (9) with stator poles (10) and stator windings (12) is integrated in the stator unit. The closed end has a contact holder (13) for electrically connecting the windings with outwardly guided connections. An independent claim is also included for a method for manufacturing a fuel pump. Die Erfindung bezieht sich auf eine Kraftstoffpumpe mit einem Pumpengehäuse (3), in dem ein Pumpenrad (23) und ein bürstenloser Elektromotor (2) als Drehantrieb für das Pumpenrad (23) angeordnet sind. Die Statoreinheit (4) der Kraftstoffpumpe (1) ist erfindungsgemäß vollständig mit Kunststoff (30, 32) ummantelt und damit vor Korrosion durch den Kraftstoff geschützt.