To provide a temperature regulation circuit capable of determining failures of a plurality of valves via one internal pressure sensor.SOLUTION: A temperature regulation circuit 1 comprises: a first coupling passage 8 that connects a first connection part 13 of a first temperature regulation circuit 4 and a first connection part of a second temperature regulation circuit 6; a second coupling passage 9 that connects a second connection part 15 of the first temperature regulation circuit 4 and a second connection part 14 of the second temperature regulation circuit 6; a three-way valve EWV provided at the first connection part of the second temperature regulation circuit 6; and a shutoff valve FSV provided between the second connection part 15 of the first temperature regulation circuit 4 and the first connection part 13. An internal pressure sensors Ps is provided at the first connection part 13 of the first temperature regulation circuit 4 or at the second connection part 15.SELECTED DRAWING: Figure 2
【課題】1つの内圧センサで複数の弁の故障を判定できる温度調整回路を提供する。【解決手段】温度調整回路1は、第1温度調節回路4の第1接続部13と第2温度調節回路6の第1接続部とを接続する第1結合通路8と、第1温度調節回路4の第2接続部15と第2温度調節回路6の第2接続部14とを接続する第2結合通路9と、第2温度調節回路6の第1接続部に設けられ三方弁EWVと、第1温度調節回路4の第2接続部15と第1接続部13との間に設けられる遮断弁FSVと、を備える。第1温度調節回路4の第1接続部13又は第2接続部15には内圧センサPsが設けられている。【選択図】図2
TEMPERATURE REGULATION CIRCUIT
温度調整回路
2021-03-01
Patent
Electronic Resource
Japanese
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