WORK VEHICLE AND COMBINE HARVESTER AS THE WORK VEHICLE

摘要

PROBLEM TO BE SOLVED: To reduce, by lowering the temperature of an outer peripheral surface of an exhaust pipe, the failure of neighboring equipment caused by heat and lower the temperature of exhaust gas to lessen deterioration in the environment of workers.SOLUTION: A work vehicle is equipped with an upward exhaust tube (61) for guiding exhaust gas of an engine (9) to the outside of the vehicle. The exhaust tube (61) is formed of an inner exhaust pipe (61A) and an enclosure tube (61B) enclosing the outer periphery of the exhaust pipe (61A). Between the outer peripheral surface of the exhaust pipe (61A) and the inner peripheral surface of the enclosure tube (61B), a fluid chamber (100) is formed, in which a fluid such as air, water and oil can be stored. A circulation device (106) is provided for circulating the fluid between the fluid chamber (100) and a cooler (105) equipped outside the fluid chamber (100). Further, a control device (115) is provided for automatically operating the circulation device (106) when the temperature of exhaust gas exceeds a first set temperature.