Title:
AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2020/158888
Kind Code:
A1
Abstract:
An air conditioner (1) comprises: a refrigerant circuit (10, 13) in which a refrigerant flows through, in order, a compressor (21), a condenser (23), a second expansion valve (28), a medium pressure receiver (81), a first expansion valve (24), and an evaporator (31) connected by refrigerant piping; and a control means (200) that controls the second expansion valve (28) and the first expansion valve (24). The control means (200) performs SC control to control the degree that a condensing side expansion valve is opened so that the SC value, which is the difference between the condensing temperature and the outlet temperature, is a target value, and changes the target value SCt according to the difference Δt between the condensing temperature and the ambient temperature in the condenser.
Inventors:
FUNAKI TOMOYUKI (JP)
TOGASAKI MASAHIRO (JP)
SUZUKI MASAHIRO (JP)
TAKAO DAIKI (JP)
GOTO SATOSHI (JP)
TAKAHASHI KOSUKE (JP)
TOGASAKI MASAHIRO (JP)
SUZUKI MASAHIRO (JP)
TAKAO DAIKI (JP)
GOTO SATOSHI (JP)
TAKAHASHI KOSUKE (JP)
Application Number:
PCT/JP2020/003518
Publication Date:
August 06, 2020
Filing Date:
January 30, 2020
Export Citation:
Assignee:
FUJITSU GENERAL LTD (JP)
International Classes:
F25B49/02
Domestic Patent References:
| WO2009047906A1 | 2009-04-16 |
Foreign References:
| JP2014167381A | 2014-09-11 | |||
| JP2013164251A | 2013-08-22 | |||
| JP2015068614A | 2015-04-13 | |||
| JP2011007482A | 2011-01-13 | |||
| JP2012211723A | 2012-11-01 | |||
| JP2017075760A | 2017-04-20 |
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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