| 摘要 |
PROBLEM TO BE SOLVED: To provide a bypass valve device which prevents harmful effects from being exerted on adjustment of an amount of intake air passing through a bypass by inclination of a bypass valve.SOLUTION: A bypass valve device 1 includes: a box shaped bypass valve 10 which opens and closes a measuring hole 13 opened in a valve guide hole 9; and a slide piece 19 which is housed in the bypass valve 10 and driven by a motor 12. A coil spring 20 disposed between a motor 12-side first end wall 17 of the bypass valve 10 and the slide piece 19 presses a second end wall 18 of the bypass valve 10, which is located at the opposite side of the motor 12, to a tip part of the slide piece 19. The measuring hole 13 is located in a portion of the bypass valve 10 which is located at the opposite side of the motor 12. |
