Rotary compressors have been widely used in domestic refrigerators and air conditioners due to their small number of parts, compact structure and high volumetric efficiency. Among them, scroll compressors and rolling piston compressors are developing. Rapidly, its market share has increased year by year, and gradually replaced the trend of reciprocating piston compressors. However, scroll compressors require extremely high precision in the matching of components, so their manufacturing costs remain high for a long time. At the same time, there are still very difficult gas axial force problems in such compressors. For piston compressors, there are disadvantages such as large eccentric motion quality and large gap leakage loss. For the above reasons, the results severely restrict the further improvement of the performance of the conventional rotary compressor. Therefore, the search for a new rotary compressor with low cost, low friction and low leakage characteristics has always been a research topic of great concern to scientists and technicians in the field. The size of the thermal expansion valve depends on the cooling capacity of the cooling machine and the evaporation temperature of the evaporation coil in the solution. Too large or too small will directly affect the cooling effect. In view of the above problems existing in the existing rotary compressor, the author proposes a new type of rotary cylinder refrigeration compressor, which innovatively adopts the structure of the embedded blade and the rotating cylinder, and also The new technology of fixed-axis rotation not only inherits the advantages of compact structure and high volumetric efficiency of the traditional rotary compressor, but also has the characteristics of simple manufacturing process, low vibration noise, low friction loss and less leakage loss. A new rotary refrigeration compressor with promising applications.
According to the material flow direction of the die head and the angle between the center line of the screw, the extruder can divide the die head into right angle die head and oblique angle die head.
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