Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
FREEZING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2021/065914
Kind Code:
A1
Abstract:
A freezing apparatus according to the present invention sets a volume ratio between an outdoor heat exchanger and an indoor heat exchanger to a volume ratio suited for an HFO-based refrigerant, and suppresses an excess or deficiency of the refrigerant. The refrigerant is an HFO refrigerant or a mixed refrigerant containing an HFO refrigerant, and the indoor heat exchanger (41) and the outdoor heat exchanger (23) are both cross-fin-type heat exchangers or stacked heat exchangers. Moreover, if the outdoor heat exchanger (23) has a one-row configuration, a volume ratio S [%] of the outdoor heat exchanger (23) with respect to the indoor heat exchanger (41) satisfies the relational expression of 100≤S≤1.0112E-03×ρ^2-1.5836E+00×ρ+8.2472E+02, in which ρ [kg/m^3] is the average density of a saturated liquid-gas at a condensation temperature of 45ºC.

Inventors:
IWATA, Ikuhiro
KUMAKURA, Eiji
YAMADA, Takuro
KAJI, Ryuhei
HIROKAWA, Tomoki
Application Number:
JP2020/036922
Publication Date:
April 08, 2021
Filing Date:
September 29, 2020
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
DAIKIN INDUSTRIES, LTD. (4-12 Nakazaki-Nishi 2-Chome, Kita-ku, Osaka-sh, Osaka 23, JP)
International Classes:
F25B39/00; F25B49/02; F25B1/00; F24F1/0059
Attorney, Agent or Firm:
SHINJYU GLOBAL IP (1-4-19 Minamimori-machi, Kita-ku, Osaka-sh, Osaka 54, JP)
Download PDF: