PROBLEM TO BE SOLVED: To provide a combine that can purify exhaust gas by suppressing release of a high temperature exhaust gas discharged from an engine and efficiently removing particulate substances in the exhaust gas by a DPF.SOLUTION: A DPF 26 which removes particulate substances contained in exhaust gas is arranged in a space formed in a position just behind the engine 11 by a threshing section and the lower part of the tank inclination bottom wall of a grain tank. In this arrangement, an exhaust pipe 30 connected to the DPF 26 is installed long along the lower part of the travelling machine base in a manner reaching the rar part of the travelling device. The DPF 26 is housed and covered in a box like cover body 27, which is composed, in the bottom wall 27a of a rectangular shape in a plane view and in the front and back of the bottom wall 27a, of the front wall 31 and the rear wall 32 that are erected with an inclined side on the upper part, and of the right inclined side wall 33 and the left inclined side wall 35 that are formed in a manner connecting the right hypotenuse and the left hypotenuse of the front wall 31 and the rear wall 32 respectively, and which is connected in the upper sides mutually of the right inclined side wall 33 and the left inclined side wall 35, while the cover body 27 is installed in the travelling machine base.COPYRIGHT: (C)2014,JPO&INPIT【課題】エンジンから排出される高温排気ガスの放熱を抑制し、DPFによる排気ガス中の粒子状物質を効率よく除去して排気ガスを浄化できるコンバインを提供する。【解決手段】エンジン11の直後位置で脱穀部とグレンタンクのタンク傾斜底壁の下方とで形成される空間部内に、排気ガスに含まれる粒子状物質を除去するDPF26を配置するにあたり、DPF26に接続される排気パイプ30を、走行機台の下方に沿わせ走行装置の後部に至るように長く設けて、DPF26を、平面視方形状の底壁27aと、該底壁27aの前後に、その上部に傾斜辺を有して立設される前壁31と後壁32と、該前壁31と後壁32の右斜辺と左斜辺とをそれぞれ接続するように形成される右傾斜側壁33と左傾斜側壁35とからなり、右傾斜側壁33と左傾斜側壁35を互いの上辺を接続した箱状のカバー体27内に収容して覆うと共に、カバー体27を前記走行機台に設置した。【選択図】図8
