Shurflo Pump Manufacturing Company, Inc.

Other

Shurfle Pump Manufacturing Co.

David J Cooper

Gary F McKee

Mike Saveliev

Patrick Joseph Weaver

Dynamo electric machines and stators for use in such machines are provided. The stators comprise plates configured to be substantially flat and a plurality of spaced apart projections or teeth extending away from the plate and, together with the plate defining a plurality of slots therebetween. The stators comprise masses of metal particles. Using stators made from such metal particles provides enhanced machine efficiency, which is believed to be because of reduced eddy current effects in the stator. Motors including rotors having generally flat arrays of permanent magnetic poles and such stators which are spaced apart from and generally facing the permanent magnetic poles and have a plurality of magnetic windings, and pumps powered by such motors are included within the scope of the present invention.

Dynamo electric machines and stators for use in same

Impeller pump driven by a dynamo electric machine having a stator

A pump including 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 provided. 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.

Pump driven by brushless motor

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Tustin Ranch, CA, United States of America

David J Cooper