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Title:
VORTEX BLOWER, IMPELLER USED FOR THE SAME AND METHOD FOR MANUFACTURING THE SAME
Document Type and Number:
Japanese Patent JP2005337165
Kind Code:
A
Abstract:

To improve productivity of a vortex blower by making an impeller easily form as an integral unit.

A three dimensional blade of an impeller is provided under a condition where gap between a plurality of blades become penetrating space along a rotation shaft direction. A fixed cover part is provided with facing a side surface of a casing part of the impeller. The cover part covers the space and part in an opposite side to stationary flow passage and flow passage of fluid is formed together with the blade.


Inventors:
Ishikawa, Shizuka
Ishida, Fumiaki
Takeda, Satoshi
Asabuki, Hiroshi
Application Number:
JP2004000159290
Publication Date:
December 08, 2005
Filing Date:
May 28, 2004
Export Citation:
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Assignee:
HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO LTD
International Classes:
F04D23/00; (IPC1-7): F04D23/00
Domestic Patent References:
JPS5077912A
JP2003161290A
JPS59168593U
JP2680136B2
JPH06272692A
Foreign References:
DE4424629C1
Attorney, Agent or Firm:
小川 勝男
田中 恭助