| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem that that when an end of an inlet connection pipe is press-fitted and fixed to a refrigerant gas inlet and another end is brazed to an end of an inlet outer pipe, brazing material cools and solidifies before the inlet outer pipe heated cools to room temperature and contracts, the inlet connection pipe is subject to internal stress compressively acting in an axial direction along with the contracting action of the inlet outer pipe in the axial direction, distortion in a cylinder diameter direction is caused and a disadvantage of uneven wearing, blocking of rotary motion or the like is caused. SOLUTION: A ratio between a plate thickness t of the inlet connection pipe and a diameterϕD of the inlet is set between 4% and 5% so that the internal stress is minimized and a clearance leakage amount of refrigerant gas is minimized. COPYRIGHT: (C)2005,JPO&NCIPI
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