Patent attributes
A first-pump arrangement flow path, temperature-adjustment target-device arrangement flow paths, and a second-pump arrangement flow path are connected to a communication flow path in this order from one end side to the other end side of the communication flow path. A first heat exchanger is disposed in the first-pump arrangement flow path among numerous flow paths, which is connected to the communication flow path at a position on a side of the first-pump arrangement flow path, rather than the flow path in which a second heat exchanger is disposed. The switching portion is operated to establish communication between plural flow paths, starting from the flow path connected to the communication flow path at the position closest to the one end side among the numerous flow paths, up to the flow path connected to the communication flow path at an n-th position counted from the one end side among the numerous flow paths.
