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
【課題】ディフューザの高さを抑えた上で、上述した後処理装置から排出される排気ガスの温度を効果的に低減する排気ガス排出装置を提供する。【解決手段】本発明に係る排気ガス排出装置は、機械室の内外を貫通し排気管9を挿通した貫通口17と、貫通口17に連結し、貫通口17から、機械室内の空気流の、機械室外への流れを許容するように排気管9の周囲に隙間を形成して設けたパイプ10と、パイプ10の外周側に取り付け、周囲に開口部19を有し、前記機械室外からの空気流と前記機械室内からの空気流及び前記排気管9からの排気ガス22とを通過するように設けたディフューザ11と、を有するものである。【選択図】図4
EXHAUST GAS DISCHARGE DEVICE, AND, CONSTRUCTION MACHINE
排気ガス排出装置、及び、建設機械
2016-07-11
Patent
Electronic Resource
Japanese
IPC: | F01N GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL , Schalldämpfer oder Auspuffvorrichtungen für Gase von Kraft- und Arbeitsmaschinen oder von Kraftmaschinen allgemein / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / E02F Baggern , DREDGING |