Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
BLOWER AND REFRIGERATION DEVICE COMPRISING BLOWER
Document Type and Number:
WIPO Patent Application WO/2018/110445
Kind Code:
A1
Abstract:
The present invention improves the efficiency of a blower. In this blower, a first extended section (61) comprises a first extended end (611) overlapping with a bell mouth upwind-side end (66) when viewed from a radial direction (dr2), and said first extended section (61) extends along a rotational axis direction (dr1) on the inner side in the radial direction (dr2) of a bell mouth (65). A second extended section (62) comprises a second extended end (621) overlapping with the bell mouth (65) when viewed from the rotational axis direction (dr1), and said second extended section (62) is connected to the first extended end (611) and extends along the radial direction (dr2) to the second extended end (621). The second extended end (621) overlaps with a virtual point (P1) in a location where the bell mouth upwind-side end (66) is extended linearly on the upwind side along the rotational axis direction (dr1). A third extended section (63) is connected to the second extended end (621), extends along the radial direction (dr2) further to the exterior in the radial direction (dr2) than the bell mouth upwind-side end (66), and has a size (L1) (the length of the third extended section (63) in the radial direction (dr2)) that is at least 0.5 times the length of a distance (D1) (the linear distance between the bell mouth upwind-side end (66) and the virtual point (P1)).

Inventors:
SHIBUYA KENTO
SANAGI TSUNEHISA
SOMAHARA KOUJI
MATSUI KAZUYASU
Application Number:
PCT/JP2017/044153
Publication Date:
June 21, 2018
Filing Date:
December 08, 2017
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
DAIKIN IND LTD (JP)
International Classes:
F04D29/32; F04D29/16
Domestic Patent References:
WO2015125486A12015-08-27
Foreign References:
JPH09505375A1997-05-27
JP2013053532A2013-03-21
JPS5211203U1977-01-26
US20020164247A12002-11-07
Other References:
See also references of EP 3557077A4
Attorney, Agent or Firm:
SHINJYU GLOBAL IP (JP)
Download PDF: