compressor, interference fit, crankshaft, rotor
In recent years small sized compressors have been introduced to the market, by reducing the height, length and width of the compressor. This improvement allows refrigerator’s compressor housing area become smaller; hence cabinet volume of the refrigerator increases. One of the parameters affecting the height of the compressor is the length of interference fit between crankshaft and rotor which is also critical to prevent split off the rotor from crankshaft during operational life. In this study theoretical model is suggested for crankshaft-rotor interference fit phenomenon and it is verified by experimental study. In addition, finite element solution is used for simulation of press fit forces. Using this model, parametric study is carried out to determine the minimum possible interference fit length for a given compressor model.