| 摘要 |
PURPOSE:To enable stable control of temperature by a method wherein a valve of an in-car sensor is provided with a diaphragm for receiving the feedback amount of a controlled variable which is fed from a bimetal to a valve main body as a result of a temperature change, in an in-car sensor type temperature controller. CONSTITUTION:A power servo 11 drives a mixing damper (not shown) which changes the feedback amount of cool/warm air into the interior of an automobile, while a vacuum tank 12 supplies the servo 11 with a negative pressure as a driving force. An in-car sensor 10 establishes or cuts off the communication between the servo 11 and the tank 12, according to the temperature inside a pipe 13 which transfer the automobile interior temperature. For this purpose, in the sensor 10, a valve port 15 for fitting a valve 14 therein is formed in the bottom portion of a valve main body 16 supported by a diaphragm 25, and the port 15 is communicated with the inside of the pipe 13 through a hole 17. With the top portion of the valve main body 16 is engaged a leaf spring 18 which is energized about a fulcrum 19 as a center. The valve main body 16 is fixed to a side plate 21, and a bimetallic strip 23 between support plates 24 is fixedly engaged 22 with the top portion of the plate 21. |
