Kältekreislaufvorrichtung

Details

Veröffentlichungs-Nr.

EP4741733

Anmeldetag

10. September 2025

Veröffentlichung

26. März 2026

Rechtsraum

EP

IPC

F25B1/00, F25B1/04, F25B43/00

Abstract

A refrigeration cycle apparatus with which highly efficient operation is possible has been demanded. An air conditioner (100) includes a first refrigerant circuit (110) and a second refrigerant circuit (120). The first refrigerant circuit includes a first compressor (10), a first heat exchanger (40) functioning as a radiator for a refrigerant, a first expansion valve (50), and a second heat exchanger (60) functioning as a heat absorber for the refrigerant. The second refrigerant circuit connects a portion between the first compressor and the first heat exchanger and a portion between the first heat exchanger and the first expansion valve. The second refrigerant circuit includes a second compressor (20). Suction pressure of the first compressor is lower than suction pressure of the second compressor. The first compressor is a scroll compressor, and the second compressor is a rotary compressor. Alternatively, the first compressor is a scroll compressor having a first design compression ratio, and the second compressor is a scroll compressor having a second design compression ratio smaller than the first design compression ratio.

Anmelder

Firma

DAIKIN INDUSTRIES, LTD.

Land

🇯🇵 Japan