| 摘要 |
PURPOSE: A compressor is provided, which makes driving shaft rotated smoothly and improves durability of the compressor by preventing a bush from being separated from a cylinder block. CONSTITUTION: A compressor comprises a cylinder block(100), a front housing, a driving shaft, and a bush(110). The cylinder block has a center bore(102) and a plurality of cylinder bores(102a). The front housing has an axis hole passing through the center, is combined with the cylinder block, and forms a crank chamber. The driving shaft transfers power for the linear reciprocating motion of the piston. The driving shaft is installed through the center bore and axis hole. The bush is installed on at least one side of the center bore and axis hole in order to smoothly rotate the driving shaft. The fixing groove(103) is recessed along the inner circumference of the center bore. One or more fixed protrusion(113) is protruded from the location corresponding to the fixing groove in the outer circumference of the bush.
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