Exhaust valve device for vehicle

Abstract

Provided is an exhaust valve device 1 for a vehicle in which a valve element 7 is supported to be able to be opened and closed in an exhaust passage 4 by a rotating shaft 5 axially supported by a valve body 3, a motor unit 13 is attached to the valve body 3 via a thermal insulation bracket 11, and an output shaft 13a of the motor unit 13 is coupled to the rotating shaft 5, the exhaust valve device 1 including: an outer circumferential, guide surface 10a provided at the valve body 3 and having an arc shape around an axial line C of the rotating shaft 5 at the center; and an inner circumferential guide surface 12a provided at the thermal insulation bracket 11 and brought into slide contact with the outer circumferential guide surface 10a to guide the thermal insulation bracket 11 to be secured at a prescribed securing angle to the valve body 3 around the axial line C of the rotating shaft 5 at the center.

Dependencies are inferred from the claim text.