PROBLEM TO BE SOLVED: To reduce a risk of ignition to waste straw, in a technology using a DOC and a DPF as an exhaust gas purification device of a diesel engine in a combine harvester.SOLUTION: In the combine harvester in which a grain threshing machine (5) is arranged at one side of the right and left on a traveling undercarriage (2) and a grain tank (4) is arranged at the other side, the DOC (9) and the DPF (10) are arranged in a region between the grain threshing machine (5) and the grain tank (4) in this order from the front side, the other end of a front exhaust pipe (8) connected to the engine (7) arranged at the front side of the grain tank (4) at its one side is connected to the upper part of the DOC (9), and a rear exhaust pipe (11) which passes through the inside of the DOC (9) and progresses to the outside from the DPF (10) is connected to the lower part of the DPF (10).COPYRIGHT: (C)2013,JPO&INPIT【課題】コンバインにおけるディーゼルエンジンの排気ガス浄化装置としてDOCとDPFを用いた技術において、排藁への着火の危険性を少なくする。【解決手段】走行車台(2)上の左右一側に脱穀装置(5)を設け、他側にグレンタンク(4)を設けたコンバインにおいて、脱穀装置(5)とグレンタンク(4)との間の部位に、DOC(9)とDPF(10)を前側からこの順に配置し、グレンタンク(4)の前側に設けたエンジン(7)に一端を接続した前部排気管(8)の他端をDOC(9)の上部に接続し、該DOC(9)の内部を通過してDPF(10)から外部へ排出する後部排気管(11)をDPF(10)の下部に接続する。【選択図】図1
