COMBINE HARVESTER

• Main Authors: MURAMOTO KYOHEI, UEJI YOSHITAKA, UEDA HIKARU, ICHIMARU TOMOYUKI, YAMAMOTO JIRO
• Format: Patent
• Language: English; Japanese
• Published: 19.03.2020
• Subjects: AGRICULTURE; ANIMAL HUSBANDRY; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES; ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; BLASTING; ENGINE PLANTS IN GENERAL; FISHING; FORESTRY; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL; HARVESTING; HEATING; HUMAN NECESSITIES; HUNTING; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; MOWING; PERFORMING OPERATIONS; STEAM ENGINES; TRANSPORTING; TRAPPING; VEHICLES IN GENERAL; WEAPONS

To provide a combine harvester from which urea water remaining in a urea water supplying device of an exhaust emission control device can be easily discharged.SOLUTION: An exhaust emission control device (20) for clarifying exhaust gas of an engine (E) is provided. The exhaust emission control device (20) comprises: an oxidation catalyst (21) oxidizing unburnt gas in exhaust gas discharged from the engine (E); an SCR catalyst (22) reducing nitrogen oxide in the exhaust gas after passing through the oxidation catalyst (21) using ammonia generated from urea water to clarify the exhaust gas; a jetting device (23) jetting the urea water to the SCR catalyst (22); a supplying device (24) supplying the urea water to the jetting device (23); and a urea water tank (25) storing the urea water to be supplied to the supplying device (24). In a machine body side view, the supplying device (24) is provided on an upper side of a machine body frame (1) above the urea water tank (25) via a fixation member (76) and a water discharge aperture (71) is formed on a region facing the supplying device (24), of the machine body frame (1).SELECTED DRAWING: Figure 5 【課題】排気浄化装置の供給装置に残留した尿素水を容易に排水することができるコンバインを提供する。【解決手段】エンジン（Ｅ）の排気ガスを浄化する排気浄化装置（２０）を設け、排気浄化装置（２０）は、エンジン（Ｅ）から排出される排気ガス中の未燃焼ガスを酸化する酸化触媒（２１）と、酸化触媒（２１）通過後の排気ガス中の窒素酸化物を尿素水から発生するアンモニアで還元して浄化するＳＣＲ触媒（２２）と、ＳＣＲ触媒（２２）に尿素水を噴射する噴射装置（２３）と、噴射装置（２３）に尿素水を供給する供給装置（２４）と、供給装置（２４）に供給する尿素水を貯留する尿素水タンク（２５）を備え、機体側面視において、供給装置（２４）を固定部材（７６）を介して尿素水タンク（２５）よりも上方の機体フレーム（１）の上側に設け、供給装置（２４）に対向する機体フレーム（１）の部位に、排水開口部（７１）を形成した。【選択図】図５