Title:
BLOWER
Document Type and Number:
WIPO Patent Application WO/2019/123680
Kind Code:
A1
Abstract:
Provided is a blower wherein the turbulence of air flowing on the air intake opening side in the axial direction of an impeller is suppressed to make the blower more quiet. The center (C) of a circular arc extending continuously from the other axial end section (A) of the parallel wall surface (31a4) of a bell-mouth (31a) toward the other axial end side and passing through the other axial end section (A) of the parallel wall surface (31a4) and through the other axial end section (B) of a rim (12) is located radially outside a straight line (D) extending in the axial direction and passing through the other axial end section (B) of the rim (12), and the distance (L) from the straight line (D) to the center (C) of the circular arc is in the range of 0 to 1.7 times the distance (R) from a rotation center (E) to the straight line (D).
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Inventors:
KAWASAKI MASATOSHI (JP)
Application Number:
PCT/JP2018/019423
Publication Date:
June 27, 2019
Filing Date:
May 15, 2018
Export Citation:
Assignee:
SANDEN AUTOMOTIVE CLIMATE SYSTEMS CORP (JP)
International Classes:
F04D29/44; F04D29/16; F04D29/66
Foreign References:
| JPH05306699A | 1993-11-19 | |||
| JP2014047750A | 2014-03-17 | |||
| JPH08135599A | 1996-05-28 | |||
| JP2015028299A | 2015-02-12 | |||
| JPS60145497A | 1985-07-31 | |||
| US20120141262A1 | 2012-06-07 |
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