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Patent Searching and Data


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 (3-3-17 Suenaga, Takatsu-ku, Kawasaki-sh, Kanagawa 02, 〒2138502, JP)
ITAKURA, Shunji (3-3-17 Suenaga, Takatsu-ku, Kawasaki-sh, Kanagawa 02, 〒2138502, JP)
HIROSAKI, Yu (3-3-17 Suenaga, Takatsu-ku, Kawasaki-sh, Kanagawa 02, 〒2138502, JP)
Application Number:
JP2018/013048
Publication Date:
January 03, 2019
Filing Date:
March 28, 2018
Export Citation:
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Assignee:
FUJITSU GENERAL LIMITED (3-3-17, Suenaga Takatsu-ku, Kawasaki-sh, Kanagawa 02, 〒2138502, JP)
International Classes:
F25B49/02; F25B1/00
Foreign References:
JP2016099056A2016-05-30
JP2008045792A2008-02-28
JP2015105808A2015-06-08
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (Toranomon Mitsui Building, 8-1 Kasumigaseki 3-chome, Chiyoda-k, Tokyo 13, 〒1000013, JP)
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