| 摘要 |
PROBLEM TO BE SOLVED: To provide a highly-reliable three-way solenoid valve capable of reliably changing a refrigerant flow channel while securing a refrigerant flow rate even under the environment of a large differential pressure without increasing the size of an electromagnetic coil and so forth.SOLUTION: A valve body 2 is provided with a communication hole 2k connected to a back pressure chamber 2eb which is defined on the opposite side to a second valve seat 4 side of a second valve element 7, and is provided with a third valve seat 5 between the communication hole 2k and a second outflow port 2c. There are equipped a third valve element 8 movably provided so as to contact with and separate from the third valve seat 5, a coil spring 12b biasing the third valve element 8 toward the third valve seat 5, and operation rods 9 interposed between a first valve element 6 and the third valve element 8. |
