Title:
FREEZING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2023/135958
Kind Code:
A1
Abstract:
A freezing apparatus according to the present disclosure operates while switching the gas cooler used, the freezing apparatus comprising: a refrigerant circuit which is composed of a low-stage compression mechanism, a water-cooled intercooler that cools a refrigerant discharged from the low-stage compression mechanism, a high-stage compression mechanism that suctions and compresses the refrigerant that has passed through the water-cooled intercooler, a water-cooled gas cooler and an air-cooled gas cooler that cool the refrigerant discharged from the high-stage compression mechanism, an expansion mechanism, and an evaporator; and an injection circuit which connects a refrigerant pipe on the upstream side of the expansion mechanism and a suction refrigerant pipe of the high-stage compression mechanism via an injection expansion mechanism.
Inventors:
YAMADA YUYA
Application Number:
PCT/JP2022/043693
Publication Date:
July 20, 2023
Filing Date:
November 28, 2022
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
F25B6/02; F25B1/00; F25B1/10; F25B29/00; F25D19/00
Domestic Patent References:
| WO2016084175A1 | 2016-06-02 | |||
| WO2017203608A1 | 2017-11-30 |
Foreign References:
| JP2021134954A | 2021-09-13 | |||
| JP2020118354A | 2020-08-06 | |||
| JP2020094760A | 2020-06-18 |
Attorney, Agent or Firm:
WASHIDA & ASSOCIATES (JP)
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