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ARRANGEMENT STRUCTURE OF REDUCING AGENT TANK ON CONSTRUCTION MACHINE
PROBLEM TO BE SOLVED: To enable a construction machine, mounted with a reducing agent tank for storing a reducing agent to be used in an exhaust gas purification device, to curb an increase in a temperature of the reducing agent even when the reducing agent tank is arranged close to a heat producing control valve.SOLUTION: A tank storage chamber 8 with a urea water tank 12 stored therein is arranged above a valve storage chamber 7 with a control valve 13 stored therein. The urea water tank 12 is placed above a barrier plate 15a which separates the tank storage chamber 7 from the valve storage chamber 8 one above the other with a space to be an air circulation passage S between the urea water tank 12 and the barrier plate 15a. In addition, a gap A is provided between a cover body covering the tank storage chamber 7 and the cover body covering the valve storage chamber 8 which are arranged one above the other so that external air can flow into and out of the air circulation passage S through the gap A.SELECTED DRAWING: Figure 10
【課題】排ガス浄化装置で用いられる還元剤を貯留する還元剤タンクを搭載してなる建設機械において、還元剤タンクを発熱体であるコントロールバルブの近傍に配設しても、還元剤の温度上昇を抑制できるようにする。【解決手段】コントロールバルブ１３が収納されるバルブ収納室７の上方に尿素水タンク１２が収納されるタンク収納室８を設けるとともに、尿素水タンク１２を、タンク収納室７とバルブ収納室８とを上下に区隔する隔板１５ａの上方に、該隔板１５ａとの間に空気流通路Ｓとなる空隙を存する状態で配する一方、タンク収納室７を覆うカバー体とバルブ収納室８を覆うカバー体の上下間に間隙Ａを設けて、該間隙Ａから前記空気流通路Ｓに外気が流出入するように構成した。【選択図】図１０
ARRANGEMENT STRUCTURE OF REDUCING AGENT TANK ON CONSTRUCTION MACHINE
PROBLEM TO BE SOLVED: To enable a construction machine, mounted with a reducing agent tank for storing a reducing agent to be used in an exhaust gas purification device, to curb an increase in a temperature of the reducing agent even when the reducing agent tank is arranged close to a heat producing control valve.SOLUTION: A tank storage chamber 8 with a urea water tank 12 stored therein is arranged above a valve storage chamber 7 with a control valve 13 stored therein. The urea water tank 12 is placed above a barrier plate 15a which separates the tank storage chamber 7 from the valve storage chamber 8 one above the other with a space to be an air circulation passage S between the urea water tank 12 and the barrier plate 15a. In addition, a gap A is provided between a cover body covering the tank storage chamber 7 and the cover body covering the valve storage chamber 8 which are arranged one above the other so that external air can flow into and out of the air circulation passage S through the gap A.SELECTED DRAWING: Figure 10
【課題】排ガス浄化装置で用いられる還元剤を貯留する還元剤タンクを搭載してなる建設機械において、還元剤タンクを発熱体であるコントロールバルブの近傍に配設しても、還元剤の温度上昇を抑制できるようにする。【解決手段】コントロールバルブ１３が収納されるバルブ収納室７の上方に尿素水タンク１２が収納されるタンク収納室８を設けるとともに、尿素水タンク１２を、タンク収納室７とバルブ収納室８とを上下に区隔する隔板１５ａの上方に、該隔板１５ａとの間に空気流通路Ｓとなる空隙を存する状態で配する一方、タンク収納室７を覆うカバー体とバルブ収納室８を覆うカバー体の上下間に間隙Ａを設けて、該間隙Ａから前記空気流通路Ｓに外気が流出入するように構成した。【選択図】図１０
ARRANGEMENT STRUCTURE OF REDUCING AGENT TANK ON CONSTRUCTION MACHINE
建設機械における還元剤タンクの配設構造
KONNO TORU (author)
2016-06-23
Patent
Electronic Resource
Japanese
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