| 摘要 |
PROBLEM TO BE SOLVED: To miniaturize component parts only by bending stepped conduits without coupling them, and prevent leakage of a refrigerant. SOLUTION: A refrigerant inflow port 15 and a refrigerant outflow port 16 are formed in an expansion valve 13. The refrigerant inflow port 15 and the refrigerant outflow port 16 are connected to each other through a valve hole 131. A first stepped conduit 17 is connected to the refrigerant inflow port 15, and a second stepped conduit 18 is connected to the refrigerant outflow port 16. A brazing material 19 is applied between an opening edge part of the refrigerant inflow port 15 and an outer peripheral surface of a fitting pipe part 174. A brazing material 20 is applied between an opening edge part of the refrigerant outflow port 16 and an outer peripheral surface of a fitting pipe part 183. The stepped conduits 17 and 18 are integrally formed. COPYRIGHT: (C)2003,JPO
|
