PROBLEM TO BE SOLVED: To provide a combine harvester capable of preventing degradation of the cooling capacity caused by dust while improving engine cooling efficiency.SOLUTION: A sub radiator (5) is provided outside an engine (2) mounted on the upper side of a combine harvester frame (1). A second filter (59a) is provided outside the sub radiator (5). A main radiator (3) is provided on the front side of the engine (2) offset to the inner side of the combine harvester from the sub radiator (5). A first filter (58a) is provided on the outer side of the main radiator (3). A main cooling fan (19) is provided inside the main radiator (3). A sub cooling fan (20) is provided inside the sub radiator (5). A drive path is provided, which drives the sub cooling fan (20) from ends on the outer side of the combine harvester body of a crank shaft (21) projected to right and left sides of the engine (2) to output the rotation-driving force, and drives the main cooling fan (19) from ends inside the combine harvester of the crank shaft (21) bypassing the engine (2).COPYRIGHT: (C)2012,JPO&INPIT【課題】コンバインのエンジン冷却効率を高める。【解決手段】機体フレーム(1)の上側に搭載したエンジン(2)の外側にサブラジエータ(5)を設け、サブラジエータ(5)の外側に第二濾過体(59a)を設け、エンジン(2)の前側にはサブラジエータ(5)よりも機体内側に偏倚させてメインラジエータ(3)を設け、メインラジエータ(3)の外側に第一濾過体(58a)を設け、メインラジエータ(3)の内側にメイン冷却ファン(19)を設け、サブラジエータ(5)の内側にはサブ冷却ファン(20)を設け、エンジン(2)の左右両側に突出させた回転駆動力を出力するクランク軸(21)の機体外側の端部からサブ冷却ファン(20)を駆動し、クランク軸(21)の機体内側の端部からエンジン(2)を迂回してメイン冷却ファン(19)を駆動する駆動経路を設ける。【選択図】図2
