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Title:
AXIAL FLOW FAN AND MANUFACTURE THEREOF
Document Type and Number:
Japanese Patent JPH0712097
Kind Code:
A
Abstract:

PURPOSE: To provide an axial flow fan and a manufacturing method thereof by which the boss part and the blade parts are joined together by welding after these are cast separately.

CONSTITUTION: In an axial flow fan 1 having the boss part 2 and the blade parts 3, the boss part 2 and the blade parts 3 are formed respectively separately, and the blade parts 3 are joined at necessary intervals in the circumferential direction to a side wall of the boss part 2 by welding. Thereby, manufacture of an axial flow fan is simplified extremely, and weight reduction of a casting mold, simplification of manufacture and cost reduction are realized, and on the other hand, weight reduction is realized by thinning thickness of moldings.


Inventors:
TOKUNAGA MASAMICHI
Application Number:
JP17743193A
Publication Date:
January 17, 1995
Filing Date:
June 23, 1993
Export Citation:
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Assignee:
HIROSE TEKKOGYO KK
International Classes:
F04D29/32; F04D29/34; (IPC1-7): F04D29/34; F04D29/32
Domestic Patent References:
JPH03151599A1991-06-27
Attorney, Agent or Firm:
Mikito Tanaka



 
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