【発明の名称】マグネットポンプ

Japanese Patent JP3403719

B2

A magnetic pump comprises a front casing (1) for forming an interior pump space (2) and having an inlet (3) for drawing in a fluid to be pumped and an outlet (4) for discharging the fluid, a rear casing (6) for forming a cylindrical space (5) extending from the pump space (2), a supporting shaft (7) having a rear end supported by a rear end of the rear casing (6) and a front end facing to the pump space (2), and a rotator (10) rotatably supported by the supporting shaft (7). The rotator (10) includes a totally cylindrical magnetic can (13) having an inner circumference on which a cylindrical rotary bearing mounted and an outer circumference on which a driven magnet is mounted, and an impeller (14) secured on a front end of the magnetic can (13) and accommodated in the pump space (2) so as to rotate integrally with the magnetic can (13). A rear bearing (19) is located at a rear end of the rotary bearing (11) via a cushion member (18). A rear thrust bearing (20) is arranged at a portion opposite to the rear bearing in the thrust direction for contacting the rear bearing (19) when the rotary bearing (11) moves backward during an abnormal run of the pump. One of the rear bearing (19) and the rear thrust bearing (20) has such a tapered cross section that reduces a sliding area.

JPH0861285	MAGNETIC COUPLING PUMP
JP2001272133	ENGINE HEAT PUMP SYSTEM
JP6861638	Blood pump

Kiyoshi Tategami
Yoshihiro Iba
Toshinori Yanagihara
Kazuo Okada

JP2001517058A

May 06, 2003

August 09, 2000

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Iwaki Co., Ltd.

F04D13/02; F04D29/04; F04D29/041; (IPC1-7): F04D13/02

JP712084A
JP8105396A
JP10205482A
JP10184302A
JP8182243A
JP608494U
JP399893U

Itami Masaru

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