Title:
AIR-CONDITIONING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/003532
Kind Code:
A1
Abstract:
An air-conditioning device (1) wherein the amount of refrigerant filling a refrigerant circuit (100) is set within a range defined by a lower limit filling amount and an upper limit filling amount. The lower limit filling amount is an amount with which the refrigerant supercooling degree at the refrigerant outlet side of a supercooling heat exchanger (23) is 0 degrees and the refrigerant dryness degree is 0, when a cooling operation is carried out under an overload condition in which the refrigerant does not easily condense in an outdoor heat exchanger (22) functioning as a condenser. The upper limit filling amount is an amount with which the refrigerant supercooling degree at the refrigerant outlet side of the outdoor heat exchanger (22) is 0 degrees and the refrigerant dryness degree is 0, when a cooling operation is carried out under a rated condition in which the refrigerant more easily condenses in the outdoor heat exchanger (22) than in the overload condition.
Inventors:
SANADA SHINTARO (JP)
ITAKURA SHUNJI (JP)
HIROSAKI YU (JP)
ITAKURA SHUNJI (JP)
HIROSAKI YU (JP)
Application Number:
PCT/JP2018/013048
Publication Date:
January 03, 2019
Filing Date:
March 28, 2018
Export Citation:
Assignee:
FUJITSU GENERAL LTD (JP)
International Classes:
F25B49/02; F25B1/00
Foreign References:
| JP2016099056A | 2016-05-30 | |||
| JP2008045792A | 2008-02-28 | |||
| JP2015105808A | 2015-06-08 | |||
| JP2010065999A | 2010-03-25 |
Other References:
See also references of EP 3647688A4
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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