| 摘要 |
<P>PROBLEM TO BE SOLVED: To sensitively and precisely detect the intake air temperature inside an intake air passage in a throttle body device for an engine. <P>SOLUTION: The throttle body device has an intake air temperature sensor 8 provided in a detecting hole 15 opened in the intake air passage 2 of a throttle body S comprising a temperature sensing element 12, and a sensor main body 14 holding the temperature sensing element 12 so as to cover it and installed in the throttle body S. In the throttle body device, while a shielding cylinder 17 inserted into the detecting hole 15 is installed in the throttle body S, the sensor main body 14 is provided with a needle-like detecting part 14a for holding the temperature sensing element 12, and a support part 14b integrally continued to a base end of the detecting part 14a and having a diameter larger than the detecting part 14a. The support part 14b is supported by the shielding cylinder 17. The detecting part 14a around which a heat insulating layer A1 is provided, is arranged in the shielding cylinder 17. The temperature sensing element 12 protrudes from the shielding cylinder 17 and is made to face to the intake air passage 2. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
