| 摘要 |
PROBLEM TO BE SOLVED: To provide a bearing device of a compressor for a refrigerator which can widen a clearance between a sliding surface of a bearing and a crankshaft surface in starting, while narrowing the clearance between the sliding surface of the bearing and the crankshaft surface, in regular operation of the compressor for the refrigerator. SOLUTION: A thickness of a resin sliding layer 3 is set so that a bearing clearance C2 in starting becomes relatively large within a range of 2.5-20% to a bearing clearance C1 in the normal service operation. Thus, since reduction in compression efficiency of the compressor for the refrigerator by axial run-out of a crankshaft 4 is prevented in the normal service operation, while narrowing the bearing clearance C1, since the bearing clearance C2 becomes large within a range of 2.5-20% to the normal service operation in starting, direct contact between the sliding surface of the bearing 1 and the crankshaft 4 surface can be prevented. COPYRIGHT: (C)2010,JPO&INPIT |
