A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
EXHAUST GAS AFTERTREATMENT UNIT AND WORK VEHICLE
PROBLEM TO BE SOLVED: To provide an exhaust gas aftertreatment unit capable of improving replenishing performance of cooling water in a reducing agent injection device, and a work vehicle.SOLUTION: An exhaust gas aftertreatment unit 20 includes a cooling water path 25 for guiding cooling water to a reducing agent injection device 24. The cooling water path 25 includes: a first flow passage F1 continuing to an inner flow passage 24a of the reducing agent injection device 24; and a second flow passage F2 and a third flow passage F3 that are branched from the first flow passage F1. A branch point FP at which the first flow passage F1 is branched into the second flow passage F2 and the third flow passage F3 is located above a connection portion between the reducing agent injection device 24 and the first flow passage F1. The third flow passage F3 extends from the branch point FP to an upper side of the second flow passage F2. The second flow passage F2 and the third flow passage F3 are merged with each other on the side opposite to the branch point FP.SELECTED DRAWING: Figure 7
【課題】還元剤噴射装置への冷却水の補充性を改善することが可能な排気ガス後処理ユニット及び作業車両を提供する。【解決手段】排気ガス後処理ユニット２０は、冷却水を還元剤噴射装置２４に導く冷却水経路２５を備える。冷却水経路２５は、還元剤噴射装置２４の内部流路２４ａに連なる第１流路Ｆ１と、第１流路Ｆ１から分岐する第２流路Ｆ２及び第３流路Ｆ３とを含む。第１流路Ｆ１が第２流路Ｆ２及び第３流路Ｆ３に分岐する分岐点ＦＰは、還元剤噴射装置２４と第１流路Ｆ１との接続部分よりも上方に位置する。第３流路Ｆ３は、分岐点ＦＰから第２流路Ｆ２よりも上方に延びる。第２流路Ｆ２と第３流路Ｆ３は、分岐点ＦＰの反対側において合流する。【選択図】図７
EXHAUST GAS AFTERTREATMENT UNIT AND WORK VEHICLE
PROBLEM TO BE SOLVED: To provide an exhaust gas aftertreatment unit capable of improving replenishing performance of cooling water in a reducing agent injection device, and a work vehicle.SOLUTION: An exhaust gas aftertreatment unit 20 includes a cooling water path 25 for guiding cooling water to a reducing agent injection device 24. The cooling water path 25 includes: a first flow passage F1 continuing to an inner flow passage 24a of the reducing agent injection device 24; and a second flow passage F2 and a third flow passage F3 that are branched from the first flow passage F1. A branch point FP at which the first flow passage F1 is branched into the second flow passage F2 and the third flow passage F3 is located above a connection portion between the reducing agent injection device 24 and the first flow passage F1. The third flow passage F3 extends from the branch point FP to an upper side of the second flow passage F2. The second flow passage F2 and the third flow passage F3 are merged with each other on the side opposite to the branch point FP.SELECTED DRAWING: Figure 7
【課題】還元剤噴射装置への冷却水の補充性を改善することが可能な排気ガス後処理ユニット及び作業車両を提供する。【解決手段】排気ガス後処理ユニット２０は、冷却水を還元剤噴射装置２４に導く冷却水経路２５を備える。冷却水経路２５は、還元剤噴射装置２４の内部流路２４ａに連なる第１流路Ｆ１と、第１流路Ｆ１から分岐する第２流路Ｆ２及び第３流路Ｆ３とを含む。第１流路Ｆ１が第２流路Ｆ２及び第３流路Ｆ３に分岐する分岐点ＦＰは、還元剤噴射装置２４と第１流路Ｆ１との接続部分よりも上方に位置する。第３流路Ｆ３は、分岐点ＦＰから第２流路Ｆ２よりも上方に延びる。第２流路Ｆ２と第３流路Ｆ３は、分岐点ＦＰの反対側において合流する。【選択図】図７
EXHAUST GAS AFTERTREATMENT UNIT AND WORK VEHICLE
排気ガス後処理ユニット及び作業車両
MIZUNO HIROYUKI (author) / IDE SATORU (author) / KOTANI DAISUKE (author)
2017-11-02
Patent
Electronic Resource
Japanese
IPC:
F01N
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL
,
Schalldämpfer oder Auspuffvorrichtungen für Gase von Kraft- und Arbeitsmaschinen oder von Kraftmaschinen allgemein
/
B60K
Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen
,
ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES
/
E02F
Baggern
,
DREDGING
EXHAUST GAS AFTERTREATMENT UNIT AND CONSTRUCTION VEHICLE EQUIPPED WITH SAME
European Patent Office | 2015
EXHAUST GAS AFTERTREATMENT UNIT, AND CONSTRUCTION VEHICLE EQUIPPED WITH SAME
| European Patent Office | 2015