| 摘要 |
<P>PROBLEM TO BE SOLVED: To perform heating-cooling in a cabin by effectively utilizing a pipe for a heating medium in the cabin. <P>SOLUTION: A circulating passage 4 includes a high temperature side pipe conduit 20 for making a heated heating medium (a heat medium) flow and a low temperature side pipe conduit 21 for making a cooled heating medium (a coolant) flow. The pipe 5 includes an intermediate part 5a for going round a predetermined range in the cabin 3 and both end parts 5b extending outside the cabin 3 from the inside of the cabin 3. A first valve 30 is selectively set in a basic state, a high temperature side connecting state and a low temperature side connecting state. In the basic state, both end parts 5a of the pipe 5 are cut off from the high temperature side pipe conduit 20 and the low temperature side pipe conduit 21, and the heating medium does not flow in the pipe 5 from the circulating passage 4. In the high temperature side connecting state, both end parts 5b of the pipe 5 are respectively connected to the upstream side and the downstream side of the high temperature side pipe conduit 20, and the heat medium flows in the pipe 5. In the low temperature side connecting state, both end parts 5b of the pipe 5 are respectively connected to the upstream side and the downstream side of the low temperature side pipe conduit 21, and the coolant flows in the pipe 5. <P>COPYRIGHT: (C)2012,JPO&INPIT |
