To provide a gas discharge device of a work vehicle capable of regulating backflow discharge of retaining water in a tail pipe that discharges exhaust gas of an engine, to prevent contamination of a bonnet or the like easily.SOLUTION: An exhaust gas discharge structure of a work vehicle covers the outer periphery of a tail pipe 12 with a cylindrical heat shielding cover 16 in order to discharge exhaust gas toward the lateral upper side of a bonnet 4 through the tail pipe 12. In the exhaust gas discharge structure, a diffuser part 13 including an air introduction path 13a having a predetermined length is formed on the upper outer periphery of a tail exhaust part 12b, and on a lower part side of the inner periphery of a lower cover cylinder part 16f that covers the lower part of the diffuser part 13 and a protruding pipe part 12c side, a damming member 25 is provided so as to regulate the leakage of retaining water accumulated in the lower cover cylinder part 16f.SELECTED DRAWING: Figure 3
【課題】エンジンの排気ガスを排出するテールパイプ内の留り水の逆流排出を規制し、ボンネット等の汚染を簡単に防止できる作業車両のガス排出装置を提供する。【解決手段】テールパイプ12を介しボンネット4の側方上方に向けて排気ガスを排出するに、該テールパイプ12の外周を筒状の遮熱カバー16で覆う作業車両の排気ガス排出構造であって、前記テール排気部12bの上部外周に所定長さのエアー導入路13aを有するディフューザ部13を構成すると共に、ディフューザ部13下方と突出パイプ部12c側を覆う下部カバー筒部16fの筒内周下部側に、該下部カバー筒部16fに溜まる留り水の漏れ出しを規制する堰き止め部材25を設けた構成にする。【選択図】図3
EXHAUST GAS DISCHARGE STRUCTURE OF WORK VEHICLE
作業車両の排気ガス排出構造
2020-10-01
Patent
Elektronische Ressource
Japanisch
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 |