| 摘要 |
<p>A channel-switching valve is provided, which can play a role of a plurality of channel switching means which are required when connecting a plurality of heat exchangers in parallel when a refrigerant is passed in a normal direction, and when connecting a plurality of heat exchangers in series when the refrigerant is passed in a reverse direction, for example, in a heat pump including the plurality of heat exchangers, and thereby, can realize simplification of a configuration of the heat pump, reduction in an occupied space, cost and energy consumption, and the like. A channel-switching valve includes a valve main body 20 provided with a valve chamber 21 having an upper side valve seat section 22A and a lower side valve seat section 22B, a valve body 30 which is rotated with an upper and a lower end surfaces of the valve body opposed to and in contact with the upper side valve seat section 22A and the lower side valve seat section 22B, an actuator 15 which rotationally drives the valve body 30, wherein a plurality of upper side inlet/outlet ports 11a to 14a and an upper side main port 25a are formed in the upper side valve seat section 22A, while a plurality of lower side inlet/outlet ports 11b to 14b which are paired with the plurality of upper side inlet/outlet ports 11a to 14a, and a lower side main port 25b which is paired with the upper side main port 25a are formed in the lower side valve seat section 22B, the valve body 30 is provided with communication paths 31 and 32 which can allow the respective ports paired at a top and bottom to communicate with each other, and the valve chamber 21 is divided into an upper chamber section 21 A and a lower chamber section 21B by the valve body 30.</p> |
