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Title:
PUMP DEVICE
Document Type and Number:
Japanese Patent JP2009065762
Kind Code:
A
Abstract:

To provide a pump device that achieves a pump without drive unit without use of a moving valve in a pump casing.

Direct current is passed through a coil 22 wound on a doughnut-shaped pump casing to cause a recirculating flow 24 containing a powdery magnetic substance 26 in the cavity in the pump casing 12. Water is thereby pumped.


Inventors:
Kishimoto, Koichi
Application Number:
JP2007000230541
Publication Date:
March 26, 2009
Filing Date:
September 05, 2007
Export Citation:
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Assignee:
NIDEC SHIBAURA CORP
International Classes:
H02K44/04; F04B9/00
Attorney, Agent or Firm:
蔦田 璋子
蔦田 正人
中村 哲士
富田 克幸



 
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