MAGNETIC PUMP

Japanese Patent JP3866504

B2

PROBLEM TO BE SOLVED: To prevent adverse effect by foreign matter in a fluid, and to easily judge the quality of the finished products at a time of examination, even if the mounting state of a thrust washer supporting an impeller is improper when a pump is assembled according to a series of steps.
SOLUTION: This magnetic pump comprises a housing body A in which a pump chamber 1 and an impeller shaft 2 are disposed; an impeller B of which blade portion 5 is formed on one end side in an axial direction of an inner magnet portion 6, and of which loop-like projection portion 6c is formed on the other end face to surround a bearing hole, which impeller B is rotatably mounted to the impeller shaft 2, a partition wall member C having a housing portion 9, into which the inner magnetic portion 6 is freely inserted, and a boss hole 9b which is formed in the bottom face of the housing portion 9 and into which the tip of the impeller shaft 2 is inserted, and a thrust washer 11. With the partition wall member C to installed the housing body A, a space Ta between the loop-like projection portion 6c and the bottom face 9a of the housing portion 9 is made smaller than the thickness Tb of the thrust washer 11.

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WO/2019/070048	EXTRACORPOREAL-CIRCULATION BLOOD PUMP DEVICE
WO/2016/024952	METHODS AND SYSTEMS FOR ROUTING PRESSURIZED FLUID UTILIZING ARTICULATING ARMS

Osamu Sato

JP2000356789A

January 10, 2007

November 22, 2000

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Yamada Manufacturing Co., Ltd.

F04D13/02; F04D29/046; F04B53/00; F04D29/04; F04D29/043; (IPC1-7): F04D13/02; F04B53/00; F04D29/04

JP11343988A
JP61025990A
JP2000034995A
JP2000220591A

Kunio Iwahori

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