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polepiston type compressor capacitance starts and circulates the electric machine design ABSTRACT£ºIn single phase electric machine of technique function index sign hasing attained national standard foundation, further decrease electric machine¡¯s noise, increasing electric machine¡¯s efficiency, economize energy, economize the original material and lower the price of product possibly, the demand improves the cold compressor in system that be used as the fridge" heart" drives ¡ª¡ªthe single-phase induction motor, the function that to increase the cold compressor in system, make fridge acquired more satisfied function index sign.This lesson a study single phase with the capacitande starts and circulates, the electric machine starts function and circulates function all are very good, the single-phase electric machine is the best electric machine at present, the foreground is very optimistic.According to the customer request of the cold compressor in fridge system electric machine with actual usage situation , and the characteristics of the cold compressor in fridge system electric machine, use the most economic method design electric machine, is point of departure that electric machine design.This design is in like this foundation and request to wait the proceeding with the customer according to the function, characteristics, work environment of the cold compressor in fridge system electric machine of, start, lift for the sake of the further ameliorative low pressure high-efficiency, lower the noise, guarantee the movement dependable.