Title:
遠心送風機および空気調和装置
Document Type and Number:
Japanese Patent JP6695403
Kind Code:
B2
Abstract:
To make a centrifugal blower have high performance and low noise.SOLUTION: A centrifugal blower includes a centrifugal fan having a main plate and a side plate facing in a direction of a rotation axis, and a casing accommodating the centrifugal fan and having a circumferential wall extending along an outer peripheral edge of the centrifugal fan. The circumferential wall has a tongue part. A wind speed in a gap between the outer peripheral edge of the centrifugal fan and the tongue part is faster in a side of the main plate of the centrifugal fan than in a side of the side plate of the centrifugal fan.SELECTED DRAWING: Figure 4
Inventors:
Kouji Atsushi
Naofumi Ikeda
Naofumi Ikeda
Application Number:
JP2018209362A
Publication Date:
May 20, 2020
Filing Date:
November 07, 2018
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
F04D29/66; F04D29/44; F24F1/0018; F24F1/028
Domestic Patent References:
| JP2012021431A | ||||
| JP2010077851A | ||||
| JP2009287427A |
Foreign References:
| CN104728172A |
Attorney, Agent or Firm:
Youichi Yamagata
Kenkai Sato
Masahiko Shinohara
Minoru Maeda
Kenkai Sato
Masahiko Shinohara
Minoru Maeda