| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve such the problem that when a rotary shaft is supported by two bearings disposed so as to sandwich three or more adjacent compression mechanism parts, a large shaft bending is caused in the rotary shaft by compression reaction force received from the compression mechanism part because of its long distance between the bearings, contact and interference between surfaces of respective sliding surfaces of the compression mechanism parts and the bearings are caused by the large shaft bending and reduction of reliability of a hermetic compressor is caused. <P>SOLUTION: In the hermetic compressor including, in a hermetic case, the rotary shaft, an electric motor part provided to one end side of the rotary shaft and at least three compression mechanism parts coaxially provided to the other end side of the rotary shaft, the rotary shaft is formed to be divided between any adjacent compression mechanism parts of the compression mechanism parts and has connection parts connecting the divided rotary shafts so as to be synchronously rotated and bearings the number of which is equal to or more than the number of the compression mechanism parts supporting the rotary shaft. <P>COPYRIGHT: (C)2012,JPO&INPIT |
