A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
EXHAUST GAS PURIFICATION DEVICE
To prevent contamination of foreign substances collected by a urea water filter into urea water which is returning to a urea water tank.SOLUTION: An exhaust gas purification device 14 comprises a urea selective reduction catalyst 21, a urea water jet valve 24, a urea water tank 25, a urea water pipe 26, a urea water supply device 30, and a urea water filter 34. The urea water filter 34 has a filter case 35 and a filter element 36, and the urea water pipe 26 has a tank side urea water pipe 27 and a jet valve side urea water pipe 28. On the other end side of the tank side urea water pipe 27, provided are a tank side supply pipe 37 allowing urea water to flow to the jet valve side urea water pipe 28 through the filter element 36 and a tank side return pipe 39 allowing urea water being returning to the filter case 35 from the jet valve side urea water pipe 28 to the urea water tank 25 without through the filter element 36.SELECTED DRAWING: Figure 4
【課題】尿素水フィルタによって捕集した異物が尿素水タンク内に戻る尿素水に混入するのを抑える。【解決手段】排気ガス浄化装置１４は、尿素選択還元触媒２１、尿素水噴射弁２４、尿素水タンク２５、尿素水管路２６、尿素水供給装置３０、尿素水フィルタ３４を備える。尿素水フィルタ３４は、フィルタケース３５とフィルタエレメント３６とを有し、尿素水管路２６は、タンク側尿素水管路２７と噴射弁側尿素水管路２８とを有している。タンク側尿素水管路２７の他端側には、尿素水をフィルタエレメント３６を通して噴射弁側尿素水管路２８へと流通させるタンク側供給管路３７と、噴射弁側尿素水管路２８からフィルタケース３５に戻された尿素水をフィルタエレメント３６を通さずに尿素水タンク２５に戻すタンク側戻し管路３９とが設けられている。【選択図】図４
EXHAUST GAS PURIFICATION DEVICE
To prevent contamination of foreign substances collected by a urea water filter into urea water which is returning to a urea water tank.SOLUTION: An exhaust gas purification device 14 comprises a urea selective reduction catalyst 21, a urea water jet valve 24, a urea water tank 25, a urea water pipe 26, a urea water supply device 30, and a urea water filter 34. The urea water filter 34 has a filter case 35 and a filter element 36, and the urea water pipe 26 has a tank side urea water pipe 27 and a jet valve side urea water pipe 28. On the other end side of the tank side urea water pipe 27, provided are a tank side supply pipe 37 allowing urea water to flow to the jet valve side urea water pipe 28 through the filter element 36 and a tank side return pipe 39 allowing urea water being returning to the filter case 35 from the jet valve side urea water pipe 28 to the urea water tank 25 without through the filter element 36.SELECTED DRAWING: Figure 4
【課題】尿素水フィルタによって捕集した異物が尿素水タンク内に戻る尿素水に混入するのを抑える。【解決手段】排気ガス浄化装置１４は、尿素選択還元触媒２１、尿素水噴射弁２４、尿素水タンク２５、尿素水管路２６、尿素水供給装置３０、尿素水フィルタ３４を備える。尿素水フィルタ３４は、フィルタケース３５とフィルタエレメント３６とを有し、尿素水管路２６は、タンク側尿素水管路２７と噴射弁側尿素水管路２８とを有している。タンク側尿素水管路２７の他端側には、尿素水をフィルタエレメント３６を通して噴射弁側尿素水管路２８へと流通させるタンク側供給管路３７と、噴射弁側尿素水管路２８からフィルタケース３５に戻された尿素水をフィルタエレメント３６を通さずに尿素水タンク２５に戻すタンク側戻し管路３９とが設けられている。【選択図】図４
EXHAUST GAS PURIFICATION DEVICE
排気ガス浄化装置
IMI MASAHARU (author) / NISHIGUCHI HITOSHI (author) / FUJII TOSHINORI (author)
2019-09-26
Patent
Electronic Resource
Japanese
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