| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and a structure for retaining airtightness at the connection section of a super critical heat pump cycle and connecting a high-pressure pressure sensor to high-pressure piping, or the like. SOLUTION: A connector made of the same material as the body housing of a pressure sensor, and a copper tube that can be brazed to piping are used to make an adaptor comprising the connector of the same material, namely one end and the other are made of the copper tube and the pressure sensor, respectively, by brazing in a furnace. The connector side of the same material as the body housing of the pressure sensor of the adaptor is welded to the pressure sensor by laser, and the copper tube side is connected to the high-pressure piping by brazing. By using the above means, the pressure sensor can be connected to the refrigerant piping of the super critical heat pump cycle while retaining airtightness in the connection section. COPYRIGHT: (C)2004,JPO&NCIPI
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