In terms of wear, the main bearing becomes smaller due to the offset of the inertial force balance, and the gas force of the piston can be reduced and balanced, and the load condition is improved, so the life is also improved. The connecting rod size head bearing also reduces the gas pressure difference at both ends of the piston, the friction loss is reduced, and the life is also improved. Valve life is also extended by the pressure differential and compression ratio. Due to the two-stage compression, the compression power is smoothed and reduced, and the motor output power is correspondingly stable and small, which is beneficial to the improvement of the life and efficiency of the motor. After the exhaust gas temperature is lowered, the lubrication condition of the compressor will be greatly improved. The gas transmission coefficient is increased as the volume, pressure, temperature, and leakage coefficient increase.
In the refrigerator application, the compression power consumption can be reduced; the intermediate pressure of the two-stage compression, combined with the refrigeration and refrigeration characteristics of the refrigerator, can reasonably determine the ratio of the two-stage piston area, optimize the freezing and refrigerating evaporation pressure and temperature, and reduce the heat exchange temperature difference. , to reduce the frost in the refrigerator, and to achieve the purpose of reducing the ineffective heat loss, the refrigeration coefficient can be increased about. In short, after using the single-stage two-stage fully enclosed compressor, the inertial force and the gas force are partially balanced, which is much better than the existing micro single-row single-stage fully enclosed compressor, and can greatly extend the service life of the compressor. Reduce energy consumption in applications. The above is the preliminary concept of the structure of the miniature fully enclosed single-stage two-stage compressor, which is mainly based on the existing refrigerator compressor manufacturing process and equipment, and in the case of a small increase in cost, the refrigerator is mini-closed with high quality and low cost. The single-stage two-stage compressor conforms to the energy-saving trend of the refrigerator, which plays a certain role in the energy-saving application of the refrigerator.
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