variable speed mechanically-driven vehicular water pump with supplementary electrical drive

variable speed mechanically-driven vehicular water pump with supplementary electrical drive

The mechanical drive shaft 3 is engageable with the pump impeller 4 by a clutch 8,12,20,22. The electrical drive comprises a rotor, in the form of magnetic elements 12 attached to the impeller 4, a stator 24,15 including coils 28 arranged around the impeller 4 in proximity to the coils 28, and a pow...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: CHRISTOPHER DAVID BUSH, JAMES RICHARD VANSCHAGEN, ROBIN ASHBY, MARTIN GREEN, IAIN WILLIAM GOULDSON, STEPHEN JOHN JOYCE
Format: Patent
Sprache:eng
Schlagworte:
BLASTING
HEATING
LIGHTING
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT PUMPS
POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS
PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
WEAPONS
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Beschreibung
Zusammenfassung:The mechanical drive shaft 3 is engageable with the pump impeller 4 by a clutch 8,12,20,22. The electrical drive comprises a rotor, in the form of magnetic elements 12 attached to the impeller 4, a stator 24,15 including coils 28 arranged around the impeller 4 in proximity to the coils 28, and a power supply to the stator. The clutch 8,12,20,22 is arranged to rotationally disengage the rotary driving member 3 and the impeller 4 when the electrical drive is energised to rotate the rotor 12 at a rotational speed above that of the rotary driving member 3. Other embodiments include the use of an over-run clutch, and a combined electrical drive and magnetic clutch, the latter is not implicitly claimed for.