| 摘要 |
PROBLEM TO BE SOLVED: To provide a scroll compressor having a high and low pressure bypass mechanism capable of maintaining the accuracy of the tilt of a bearing in assembly by suppressing the reversal of high and low pressures in a closed container in airtight test and when a refrigerant is sealed therein to eliminate the displacement of a frame. SOLUTION: This scroll compressor comprises a chamber 22 having a communication hole 25 formed in a fixed scroll 1 for communicating an intake pressure atmosphere low pressure space 23 with a high pressure space 24 and a muffler chamber 21 having a delivery valve 20 disposed on the opposite side of the swing scroll 3 side of a fixed scroll so as to cover a part of the communication hole and communicating or cutting off a compression space and a high pressure space with or from each other and allowed to communicate with the compression chamber from the delivery port of the fixed scroll to the delivery valve, a valve seat 31 formed at the lower part of the communication hole, and a ball valve 26 stored in the communication hole, closely fitted to the valve seat when the communication hole is closed to close the communication hole, and separating from the valve seat when the communication hole is opened to suppress the movement thereof into the high pressure chamber by the chamber. COPYRIGHT: (C)2005,JPO&NCIPI
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