Title:
二重反転式ファン
Document Type and Number:
Japanese Patent JP7226903
Kind Code:
B2
Abstract:
To provide a double inversion fan of high air capacity.SOLUTION: This invention has a first fan 1 including a first impeller 10 with several first blades 10a arranged in a radial manner around a center of a predetermined central axis J; a first motor part 11 for rotating the first impeller 10 around the central axis J and a first case 12A enclosing an outer circumference of the first impeller 10; and a second fan 2 comprising a second impeller 20 having several second blades 20a arranged in a radial manner around a center of the central axis J, a second motor part 21 for rotating the second impeller 20 around the central axis J and a second case 22A enclosing an outer circumference of the second impeller 20. The first case 12A and the second case 22A are contacted to each other at their end surfaces at a first position P1 in an axial direction, the first motor part 11 and the second motor part 21 are arranged to face in a reverse direction to each other in an axial direction and at the same time their end surfaces are oppositely faced at the second position P2 different from the first position P1.SELECTED DRAWING: Figure 4
Inventors:
Yoshihiko Kato
Takahiro Banba
Yoshihisa Kagawa
Takanori Abe
Takahiro Banba
Yoshihisa Kagawa
Takanori Abe
Application Number:
JP2019007881A
Publication Date:
February 21, 2023
Filing Date:
January 21, 2019
Export Citation:
Assignee:
Nippon Densan Servo Co., Ltd.
International Classes:
F04D19/02; F04D25/16; F04D29/52; H02K7/14; H02K16/00
Domestic Patent References:
| JP2008106705A | ||||
| JP2007077890A | ||||
| JP4076570B1 | ||||
| JP2010019183A | ||||
| JP2008038637A | ||||
| JP2008286137A |
Attorney, Agent or Firm:
Shu Oikawa
Kei Kajiwara
Yuki Narita
Masahisa Matsumoto
Ancient city Satoshi
Kei Kajiwara
Yuki Narita
Masahisa Matsumoto
Ancient city Satoshi