EXHAUST GAS DISCHARGE DEVICE, AND, CONSTRUCTION MACHINE

摘要

PROBLEM TO BE SOLVED: To provide an exhaust gas discharge device in which temperature of exhaust gas discharged from a post treatment device is effectively reduced while height of a diffuser is suppressed.SOLUTION: The exhaust gas discharge device related to the present invention comprises: a through- hole 17 which penetrates through inside and outside of a machine chamber and into which an exhaust pipe 9 is inserted; a pipe 10 which is connected to the through-hole 17 and provided while forming a clearance between the pipe 10 and the outer circumferential surface of the exhaust pipe 9 so that an air flow in the machine chamber is allowed to flow from the through-hole 17 to the outside of the machine chamber; and a diffuser 11 which is fixed to an outer circumferential side of the pipe 10, has openings 19 in the periphery and is provided to cause air flow from outside the machine chamber, air flow from inside the machine chamber and exhaust gas 22 discharged from the exhaust pipe 9 to pass through the diffuser.SELECTED DRAWING: Figure 4