Title:
AIR CONDITIONING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/164210
Kind Code:
A1
Abstract:
An air conditioning system, comprising an indoor heat exchanger (1), an outdoor heat exchanger (2), a centrifugal compressor (3), a subcooler (4), and a first throttling element (5). The centrifugal compressor (3) comprises multi-stage compression chambers (31); the subcooler (4) is communicated with an inlet of the centrifugal compressor (3) and is used for performing heat exchange on a refrigerant from the indoor heat exchanger (1) or the outdoor heat exchanger (2) so as to send the refrigerant subjected to the heat exchange into the multi-stage compression chambers (31) of the centrifugal compressor (3); and the first throttling element (5) is provided at the upstream of the subcooler (4) and is used for throttling the refrigerant entering the subcooler (4). The centrifugal compressor (3) is provided with multi-stage compression chambers (31), the air suction volume is increased, and the refrigeration or heating capacity is improved.
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Inventors:
XIONG JIANGUO (CN)
SU YUHAI (CN)
ZHANG SHIQIANG (CN)
LI LIMIN (CN)
SU YUHAI (CN)
ZHANG SHIQIANG (CN)
LI LIMIN (CN)
Application Number:
PCT/CN2019/091494
Publication Date:
August 20, 2020
Filing Date:
June 17, 2019
Export Citation:
Assignee:
GREE ELECTRIC APPLIANCES INC ZHUHAI (CN)
International Classes:
F25B40/00; F25B31/02; F25B41/20; F25B41/34
Foreign References:
| CN109682105A | 2019-04-26 | |||
| CN106382760A | 2017-02-08 | |||
| US3335738A | 1967-08-15 | |||
| JP2004069213A | 2004-03-04 | |||
| US4748820A | 1988-06-07 | |||
| CN102692104A | 2012-09-26 | |||
| FR2365763A2 | 1978-04-21 | |||
| CN1708663A | 2005-12-14 | |||
| CN108885055A | 2018-11-23 | |||
| CN101878402A | 2010-11-03 | |||
| CN108369037A | 2018-08-03 | |||
| US3948060A | 1976-04-06 | |||
| JP2004020064A | 2004-01-22 | |||
| JP2013210159A | 2013-10-10 |
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
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