Title:
CENTRIFUGAL IMPELLER AND CENTRIFUGAL BLOWER USING IT
Document Type and Number:
WIPO Patent Application WO/2008/072558
Kind Code:
A1
Abstract:
A centrifugal impeller (14) and a centrifugal blower (1) include a main plate
(15), blades (18), an annular plate (20), and a cylindrical wall (22). The blades
(18) are annularly disposed on the outer peripheral side of the front surface
(17) of the main plate (15). The annular plate (20) is attached to the tip ends
(19) of the blades (18). The cylindrical wall (22) is so provided on the rear surface
(21) of the main plate (15) as to be coaxial with the main plate (15). With this
constitution, the centrifugal impeller (14) and the centrifugal blower (1)
with improved air-blowing efficiency and reduced noise can be obtained.
Inventors:
SHIRAHAMA SEIJI
YOSHIKAWA HITOSHI
YOSHIKAWA HITOSHI
Application Number:
PCT/JP2007/073639
Publication Date:
June 19, 2008
Filing Date:
December 07, 2007
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD (JP)
SHIRAHAMA SEIJI
YOSHIKAWA HITOSHI
SHIRAHAMA SEIJI
YOSHIKAWA HITOSHI
International Classes:
F04D29/28; F04D29/44; F04D29/66
Foreign References:
| JPS5489506U | 1979-06-25 | |||
| JP2006090297A | 2006-04-06 | |||
| JP2004204756A | 2004-07-22 | |||
| JP2002161896A | 2002-06-07 | |||
| JPS5935699U | 1984-03-06 | |||
| JPH041621U | 1992-01-08 | |||
| JPS322415Y1 | ||||
| JPH01170797A | 1989-07-05 | |||
| JPH05231392A | 1993-09-07 | |||
| JP2005121310A | 2005-05-12 | |||
| JP2006299965A | 2006-11-02 | |||
| JPS5592100U | 1980-06-25 | |||
| JPS63128291U | 1988-08-22 |
Attorney, Agent or Firm:
IWAHASHI, Fumio et al. (Industrial Co. Ltd.,1006, Oaza Kadoma,Kadoma-shi, Osaka 01, JP)
Download PDF:
Previous Patent: CUTTING TOOL FOR FLOWER ARRANGEMENT-USE WATER RETAINING RESIN FOAM BLOCK
Next Patent: MICRO-SPINDLE
Next Patent: MICRO-SPINDLE