Title:
AIR CONDITIONING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2021/200787
Kind Code:
A1
Abstract:
An air conditioning apparatus (1) is provided with a heat-source-side unit (2), a plurality of usage-side units (3a, 3b, 3c, 3d), an intermediate unit (4), and two connecting conduits (5, 6). The intermediate unit (4) individually switches a plurality of usage-side heat exchangers (31a, 31b, 31c, 31d) to function as radiators or evaporators for cooling. The two connecting conduits (5, 6) connect the heat-source-side unit (2) and the intermediate unit (4). The intermediate unit (4) has an ejector (41) and a gas-liquid separator (42). The ejector (41) uses a drive flow to pressurize the coolant evaporated by evaporators. Coolant that flows out from the ejector (41) flows into the gas-liquid separator (42). The ejector (41) functions in cooling-dominant mixed cooling/heating operation in which the combined cooling operation load of the plurality of usage-side units (3a, 3b, 3c, 3d) is greater than the combined heating operation load thereof.
Inventors:
KUMAKURA EIJI
YOSHIMI ATSUSHI
YAMADA TAKURO
IWATA IKUHIRO
MIYAZAKI TAKERU
YOSHIMI ATSUSHI
YAMADA TAKURO
IWATA IKUHIRO
MIYAZAKI TAKERU
Application Number:
PCT/JP2021/013191
Publication Date:
October 07, 2021
Filing Date:
March 29, 2021
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
F25B5/02; F25B1/00; F25B13/00; F25B5/04
Domestic Patent References:
| WO2012092686A1 | 2012-07-12 |
Foreign References:
| JP2016070596A | 2016-05-09 | |||
| EP3263374A1 | 2018-01-03 | |||
| JP2016070595A | 2016-05-09 |
Other References:
See also references of EP 4113033A4
Attorney, Agent or Firm:
SHINJYU GLOBAL IP (JP)
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