| 摘要 |
PURPOSE:To prevent erroneous operation of a temperature control damper apparatus due to transfer of the liquid coolant sealed in a temperature sensing tube by installing a spiral trap in the vicinity of the temperature sensing tube in a capillary tube which connects a bellows to the temperature sensing tube. CONSTITUTION:A bellows 4, capillary tube 6, and a temperature sensing tube 7 form a communication tube, and a spiral trap 6a at least in one turn is set in a capillary tube 6 in the vicinity of the temperature sensing tube 7, and liquid coolant is sealed in the communication tube. Flow-down of the liquid coolant can be prevented by installing the trap 6a the course to the capillary tube 6, and the coexisting state of gas and liquid is always formed in the inside of the temperature sensing tube, and restriction of height due to installation of the bellows 4 and the temperature sensing tube 7 is eliminated. Accordingly, erroneous operation due to transfer of the liquid coolant sealed in the temperature sensing tube of a temperature control damper apparatus can be prevented. |
