Kühlvorrichtung

Details

Veröffentlichungs-Nr.

EP3228954

Aktenzeichen

EP17165170

Anmeldetag

6. April 2017

Veröffentlichung

13. Dezember 2017

Rechtsraum

EP

IPC

F25B13/00F25B25/00F25B49/02

Abstract

A cooling apparatus includes a compressor 10, an airside heat exchanger 11, an expansion valve 12, and a usage-side heat exchanger 5, which are sequentially connected by a refrigerant pipe 6. In addition, the cooling apparatus includes a first valve 13 which is provided between the airside heat exchanger 11 and the expansion valve 13; a bypass circuit 15 for a pump operation cycle which bypasses the first valve 13 and which includes a refrigerant circulation pump 14; a compressor bypass circuit 18 which bypasses the compressor 10; and a second valve 19 which is provided in the compressor bypass circuit 18. A plurality of refrigeration cycles are provided which switch a compressor operation cycle which drives the compressor 10 and operates as a state where the first valve 13 is opened and a state where the second valve 19 is closed and a pump operation cycle which drives the refrigerant circulation pump 14 and operates as a state where the first valve 13 is closed and a state where the second valve 19 is opened, and the plurality of refrigeration cycles are disposed on an upstream side and a downstream side in a flow direction of a cooling medium.

Anmelder

Firma

Hitachi-Johnson Controls Air Conditioning, Inc.

Land

🇯🇵 Japan

Fachgebiete