Title:
REFRIGERATING AND AIR-CONDITIONING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2018/011841
Kind Code:
A1
Abstract:
A refrigerating and air conditioning apparatus according to the present invention is provided with: a refrigeration cycle circuit in which a compressor, a condenser, a first expansion mechanism, and an evaporator are connected by piping; a first solenoid valve provided to the piping between the condenser and the first expansion mechanism; a supercooler provided between the condenser and the first solenoid valve; injection piping, one end of which is connected between the supercooler and the first solenoid valve, and the other end of which is in communication with a compression chamber of the compressor; a second solenoid valve provided to the injection piping; a second expansion mechanism provided in a position between the compressor and the second solenoid valve in the injection piping; bypass piping, a first end part of which is connected between the condenser and the second solenoid valve, and a second end part of which is connected between the second solenoid valve and the second expansion mechanism; and a third solenoid valve provided to the bypass piping, the apparatus being configured such that when the third solenoid valve is opened when the second solenoid valve is closed, a smaller amount of liquid refrigerant flows into the second expansion mechanism than the amount of liquid refrigerant that flows into the second expansion mechanism when the second solenoid valve is opened.
Inventors:
ASAI SHINICHI (JP)
SHINKAI KOJI (JP)
SHINKAI KOJI (JP)
Application Number:
PCT/JP2016/070375
Publication Date:
January 18, 2018
Filing Date:
July 11, 2016
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F25B1/00
Domestic Patent References:
| WO2013001688A1 | 2013-01-03 | |||
| WO2015136706A1 | 2015-09-17 |
Foreign References:
| JPS60148566U | 1985-10-02 | |||
| US20020021972A1 | 2002-02-21 | |||
| EP3023711A1 | 2016-05-25 | |||
| JPH05164413A | 1993-06-29 | |||
| JPH02187567A | 1990-07-23 | |||
| JPH08233379A | 1996-09-13 |
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
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