Compressing and injecting mixed cycle refrigerating device for electric refrigerator

• Main Authors: HUANG QIAN, CAO LIHONG, LIU ZHENLI, ZHANG QINGZHENG, LIU YICAI
• Format: Patent
• Language: Chinese; English
• Published: 11.06.2008
• Subjects: BLASTING; COLD ROOMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHERSUBCLASS; HEAT PUMP SYSTEMS; HEATING; ICE-BOXES; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; REFRIGERATION OR COOLING; REFRIGERATORS; WEAPONS

The utility model relates to a compression/ injection mixed circulation refrigerant method for a refrigerator and a device thereof. An injection is connected between the two evaporator outlets of the freezing chamber and the cold chamber and the air return pipe of a compressor, so as to mix refrigerants of two different pressures generated by the two evaporators of the two chambers and to form a mixed fluid with moderate pressure entering into the air return pipe of the compressor, thus enhancing air return pressure of a compressor, reducing pressure ratio and improving the refrigerant performance of a compressor. The utility model has simple structure, is easy to produce with low cost and reliable performance, is suitable for connection with system pipelines of various refrigerator type, can improve uniform and effective temperature control of freezing and cold chambers of a refrigerator and reduce considerable available energy loss caused by too large heat transfer temperature difference of the cold chamber