H - Electricity – 02 – K
Patent
H - Electricity
02
K
H02K 7/14 (2006.01) F04D 13/06 (2006.01) H02K 3/52 (2006.01) H02K 5/128 (2006.01) H02K 11/04 (2006.01) H02K 29/08 (2006.01)
Patent
CA 2298588
A pump comprising a pump casing having an inlet and an outlet, and an impeller having a rotary axis and being rotatably mounted within the pump casing for rotation about the rotary axis is provide. The impeller is configured and positioned relative to the pump casing so that the rotation of the impeller is effective to urge fluid from the inlet to flow through the outlet. A rotor assembly, coupled to and rotatable with the impeller, is provided with a plurality of permanent magnetic poles which are arranged in a generally flat array. A stator assembly is spaced apart from and generally facing the generally flat array of magnetic poles and includes a stator and a plurality of magnetic windings positioned and adapted to effect rotation of the rotor and the impeller upon energization thereof. A bulkhead is positioned between the rotor and the stator. The bulkhead includes a centrally located mounting feature. A stationary axle is located partially in and supported by the mounting feature and extends outwardly across the bulkhead. A bearing is rotatably mounted on the axle and is adapted to rotate with the rotor assembly and the impeller. A heatsink member is provided and is effective to conductively remove heat generated by the stator assembly and electronic controls.
L'invention porte sur une pompe comportant un carter présentant une entrée et une sortie et un impulseur monté tournant sur un axe mobile à l'intérieur du carter. L'impulseur est configuré et disposé par rapport au carter pour que sa rotation entraîne un liquide de l'entrée vers la sortie. Un rotor lié à l'impulseur et tournant avec lui comporte plusieurs pôles magnétiques permanents disposés sensiblement en un réseau plat. Le stator séparé du susdit réseau plat de pôles magnétiques et lui faisant face comporte le stator proprement dit et plusieurs enroulements magnétiques disposés et conçus pour entraîner en rotation le rotor et l'impulseur lorsqu'on les alimente. Une cloison séparant le rotor du stator comporte un élément de fixation en position centrale. L'axe fixe partiellement monté dans l'élément de fixation et reposant partiellement sur lui se prolonge vers l'extrémité en traversant la cloison. Un palier monté tournant sur l'axe est conçu pour tourner avec le rotor et l'impulseur. Un radiateur élimine par conduction la chaleur produite par le stator et les commandes électriques.
Cooper David J.
Mckee Gary F.
Saveliev Mike
Borden Ladner Gervais Llp
Shurflo Pump Manufacturing Co.
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