REFRIGERATION CIRCUIT Russian patent published in 2014 - IPC F25B39/02 F28F1/08 F28F19/04 

FIELD: heating.

SUBSTANCE: invention relates to a refrigeration circuit. The essence of the invention is the refrigeration circuit (3) for household appliances, in particular household appliances for cooling, such as refrigerators and freezers, comprises a first heat exchanger (5) made with the ability of fluid communication with the compressor (4), which provides cooling of cooling fluid medium which flows through it, and its transition to substantially liquid phase. It also comprises a second heat exchanger (7) fluidly communicating with the said first heat exchanger (5) and acting in the space (2) to be cooled. The second heat exchanger (7) provides a partial transition of the cooling fluid medium in gaseous phase with heat absorption thereby the said space (2) is cooled. The cooling fluid medium is circulated from the first heat exchanger (5) to the second heat exchanger (7) and, thus, enters into the compressor (4) for the next cycle. The capillary device (6) is located between the first heat exchanger (5) and the second (7) heat exchanger for expanding the said cooling fluid medium. One of the said first heat exchanger (5) and the second heat exchanger (7) comprises a flexible tube (9), and the part of the said tube (9) has such a corrugated profile, which gives it flexibility, and the said tube (9) in section comprises a layer (100) of plastic and a layer (101) comprising the metallic material. The metal layer (101) is connected to the plastic layer, and the said metallic material is configured with the ability to form a barrier against moisture. The said layer (100) of plastic is a layer the structural purpose of which is maintaining the shape of the tube (9), and is preferably made of a thermoplastic material. The metal layer (101) is flexible, it does not have a function of a supporting structure and comprises a single-layered metal film or a multilayer film comprising one or more metal films connected or not connected to the layer of material made with the ability to maintaining the shape.

EFFECT: improving the efficiency of heat exchanging and providing waterproofing.

16 cl, 27 dwg, 1 tbl