Centrifugal pump with switched reluctance motor drive

Details Centrifugal pump with switched reluctance motor drive Centrifugal pump with switched reluctance motor drive

F - Mech Eng,Light,Heat,Weapons

04

B

F04B 17/00 (2006.01) F04B 35/04 (2006.01) F04D 1/12 (2006.01) F04D 13/06 (2006.01)

Patent

CA 2478349

A centrifugal pump, particularly of the pitot tube type (26), is specifically configured and coupled with a switched reluctance motor (14) to provide improved pumping characteristics and economical operating advantages in the pump assembly (12) including the ability to rapidly decrease pump speed (e.g., from 100% to 10%) in seconds (i.e., three to six seconds) and, likewise, to rapidly increase (e.g., zero percent to 80% or greater) in seconds (i.e., five to ten seconds), despite the larger mass and inertia characteristics of some centrifugal pumps. The pump assembly of the present invention is also configured to provide a smaller footprint, thereby rendering the pump more suitable to a wider variety of applications than has been previously available to conventional pitot tube pumps.

L'invention concerne une pompe centrifuge, en particulier du type tube de Pitot (26), spécifiquement configurée et couplée à un moteur à réluctance (14) commuté afin d'améliorer des caractéristiques de pompage et des avantages de fonctionnement économiques dans l'ensemble pompe (12), notamment sa capacité de réduction de régime rapide (par exemple, de 100 % à 10%) en secondes (c'est-à-dire de trois à six secondes) ainsi que sa capacité d'augmentation de régime rapide (par exemple, de 0 % à 80 % ou plus) en secondes (c'est-à-dire, de cinq à dix secondes) malgré les caractéristiques de masse et d'inertie plus marquées de certaines pompes centrifuges. L'ensemble pompe de l'invention est également configuré afin d'occuper moins de place, ce qui rend ladite pompe plus appropriée pour être utilisée dans une plus grande variété d'applications que ce n'était le cas avec les pompes à tube de Pitot classiques.

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