MOTOR PUMP

Japanese Patent JP2004336914

A

To provide a motor pump with high efficiency, high durability, simple structure, small and safe productivity.

This motor pump comprises a motor stator 5; a cylindrical body provided in the inner circumference of the motor stator 5; a sleeve 7 provided in the inner circumference of the cylindrical body; a spiral slot 7s provided in the peripheral surface of the sleeve 7; a rotor 8 provided in the inner circumference of the sleeve 7 and which rotates integral with the sleeve 7. The motor rotor 8 rotates by rotating field in which the motor stator 5 is generated, and the sleeve 7 rotates integral with the motor rotor 8. The spiral slot 7s is formed in the peripheral surface of the sleeve 7, and the sleeve 7 is fitted to the cylinder body with a slight space, thus pump operation is generated by the screw operation of the spiral slot 7s, and handling liquid is send from the starting end to the terminal end of the spiral slot 7s during being boosted by the rotation of the sleeve 7.

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MIYAKE YOSHIO
KONISHI YASUTAKA
UCHIDA HIROSHI
KANEDA KAZUHIRO

JP2003130724A

November 25, 2004

May 08, 2003

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EBARA CORP

F04D3/02; H02K5/128; H02K7/14; (IPC1-7): H02K7/14; F04D3/02; H02K5/128

Isamu Watanabe
Shintaro Hotta
Ryoji Kosugi
Tomohiro Mori

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