Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
TURBO COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2021/065363
Kind Code:
A1
Abstract:
In order to cool a coil of an electric motor (20) of a turbo compressor (10) using a simple configuration, in this turbo compressor, which is provided in a refrigerant circuit (70) that performs a refrigeration cycle, and which compresses a refrigerant: a refrigerant passage (56) through which the refrigerant flows, and a plurality of ejection openings (57) which eject the refrigerant from the refrigerant passage (56) toward coil ends (24, 25) of the electric motor (20) are formed in bearing holders (51, 52) which employ bearings (40) to support a drive shaft (26) linking an impeller (30) and the electric motor (20); and the ejection openings (57) are formed distributed around the bearing holders (51, 52) in the circumferential direction.

Inventors:
FUJIWARA Hideki (Umeda Center Building, 4-12, Nakazaki-nishi 2-chome, Kita-ku, Osaka-sh, Osaka 23, JP)
OKADA Kuuma (Umeda Center Building, 4-12, Nakazaki-nishi 2-chome, Kita-ku, Osaka-sh, Osaka 23, JP)
Application Number:
JP2020/033815
Publication Date:
April 08, 2021
Filing Date:
September 07, 2020
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
DAIKIN INDUSTRIES, LTD. (4-12 Nakazaki-nishi 2-chome, Kita-ku, Osaka-sh, Osaka 23, JP)
International Classes:
F04D29/58; F04D17/10; F04D29/056; F04D29/058; H02K7/09; H02K9/19
Attorney, Agent or Firm:
MAEDA & PARTNERS (2-1 Dojimahama 1-chome, Kita-ku, Osaka-sh, Osaka 04, JP)
Download PDF:



 
Previous Patent: CONVEYOR DEVICE AND ANALYSIS SYSTEM

Next Patent: CATHETER