US Patent 8631895 Exhaust device for work vehicle

An exhaust device for a work vehicle including: an exhaust pipe for guiding exhaust to a vehicle exterior. The exhaust pipe includes: an exhaust guide pipe into which exhaust from an engine is introduced, a bending section for changing an exhaust direction; an external protective pipe that externally fits onto a downstream-side guide pipe; an ejector section for suctioning and introducing external air between an outer periphery of the exhaust guide pipe and an inner periphery of the external protective pipe; and an external air introduction section provided to an upstream-side end section of the external protective pipe.