| 摘要 |
PROBLEM TO BE SOLVED: To provide an air conditioner having an inexpensive compact refrigeration cycle with high capacity, relating to a bypass valve and the air conditioner using the valve. SOLUTION: The bypass valve comprises a circular cylindrical valve case 1 having a valve chamber 10 and a valve seat 3 formed at a lower part, and a valve member 7 airtightly sliding in the valve case 1 to open and close the valve seat 3. The valve chamber 10 of the valve case 1 is provided with a first guide pipe 1a connected to a discharge side of a compressor, a second guide pipe 1b connected to a four-way valve, and a third guide pipe 2 connected to an indoor heat exchanger and opened and closed by the valve member 7. The valve case 1 has a pressure chamber 11 provided above the valve member 7. The pressure chamber 11 is provided, at an end opposite to the valve seat 3, with a tube in communication with a pilot valve of the four-way valve and a return spring 9 urging the valve member 7 toward the valve seat 3 and supported by a stopper 5.
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