EXHAUST EMISSION CONTROL SYSTEM
To provide an exhaust emission control system for enabling appropriate NOx elimination according to the states of an internal combustion engine and a NOx catalyst.SOLUTION: A NOx catalyst 21 is provided in an exhaust passage 12 of an engine 10. A hydrocarbon supply part 31 supplies hydrocarbon as re...
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| creator | MOTOO KOHEI |
| description | To provide an exhaust emission control system for enabling appropriate NOx elimination according to the states of an internal combustion engine and a NOx catalyst.SOLUTION: A NOx catalyst 21 is provided in an exhaust passage 12 of an engine 10. A hydrocarbon supply part 31 supplies hydrocarbon as reductant to the NOx catalyst 21. An operation state detection part 41 detects the operation state of the engine 10. A catalyst state change estimation part 42 estimates a change in the state of the NOx catalyst 21 on the basis of the operation state detected by the operation state detection part 41. A reductant species control part 43, a reformer 25, and a heater 26 control the species of the hydrocarbon to be supplied to the NOx catalyst 21 on the basis of the change in the state of the NOx catalyst 21 estimated by the catalyst state change estimation part 42.SELECTED DRAWING: Figure 1
【課題】内燃機関およびＮＯｘ触媒の状態に応じて、適切なＮＯｘ浄化が可能な排気浄化システムを提供する。【解決手段】ＮＯｘ触媒２１は、エンジン１０の排気通路１２に設けられる。炭化水素供給部３１は、ＮＯｘ触媒２１に還元剤としての炭化水素を供給する。運転状態検出部４１は、エンジン１０の運転状態を検出する。触媒状態変化推定部４２は、運転状態検出部４１により検出した運転状態に基づき、ＮＯｘ触媒２１の状態の変化を推定する。還元剤種制御部４３、改質器２５、ヒータ２６は、触媒状態変化推定部４２により推定したＮＯｘ触媒２１の状態の変化に基づき、ＮＯｘ触媒２１に供給される炭化水素の種類を制御する。【選択図】図１ |
| format | Patent |
| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_JP2019203387A</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>JP2019203387A</sourcerecordid><originalsourceid>FETCH-epo_espacenet_JP2019203387A3</originalsourceid><addsrcrecordid>eNrjZJB3jfBwDA0OUXD19QwO9vT3U3D29wsJ8vdRCI4MDnH15WFgTUvMKU7lhdLcDEpuriHOHrqpBfnxqcUFicmpeakl8V4BRgaGlkYGxsYW5o7GRCkCADqJIm8</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>EXHAUST EMISSION CONTROL SYSTEM</title><source>esp@cenet</source><creator>MOTOO KOHEI</creator><creatorcontrib>MOTOO KOHEI</creatorcontrib><description>To provide an exhaust emission control system for enabling appropriate NOx elimination according to the states of an internal combustion engine and a NOx catalyst.SOLUTION: A NOx catalyst 21 is provided in an exhaust passage 12 of an engine 10. A hydrocarbon supply part 31 supplies hydrocarbon as reductant to the NOx catalyst 21. An operation state detection part 41 detects the operation state of the engine 10. A catalyst state change estimation part 42 estimates a change in the state of the NOx catalyst 21 on the basis of the operation state detected by the operation state detection part 41. A reductant species control part 43, a reformer 25, and a heater 26 control the species of the hydrocarbon to be supplied to the NOx catalyst 21 on the basis of the change in the state of the NOx catalyst 21 estimated by the catalyst state change estimation part 42.SELECTED DRAWING: Figure 1
【課題】内燃機関およびＮＯｘ触媒の状態に応じて、適切なＮＯｘ浄化が可能な排気浄化システムを提供する。【解決手段】ＮＯｘ触媒２１は、エンジン１０の排気通路１２に設けられる。炭化水素供給部３１は、ＮＯｘ触媒２１に還元剤としての炭化水素を供給する。運転状態検出部４１は、エンジン１０の運転状態を検出する。触媒状態変化推定部４２は、運転状態検出部４１により検出した運転状態に基づき、ＮＯｘ触媒２１の状態の変化を推定する。還元剤種制御部４３、改質器２５、ヒータ２６は、触媒状態変化推定部４２により推定したＮＯｘ触媒２１の状態の変化に基づき、ＮＯｘ触媒２１に供給される炭化水素の種類を制御する。【選択図】図１</description><language>eng ; jpn</language><subject>BLASTING ; COMBUSTION ENGINES ; COMBUSTION ENGINES IN GENERAL ; ENGINE PLANTS IN GENERAL ; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES ; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL ; HEATING ; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS ; INTERNAL-COMBUSTION PISTON ENGINES ; LIGHTING ; MACHINES OR ENGINES IN GENERAL ; MECHANICAL ENGINEERING ; STEAM ENGINES ; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF ; WEAPONS</subject><creationdate>2019</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20191128&DB=EPODOC&CC=JP&NR=2019203387A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20191128&DB=EPODOC&CC=JP&NR=2019203387A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>MOTOO KOHEI</creatorcontrib><title>EXHAUST EMISSION CONTROL SYSTEM</title><description>To provide an exhaust emission control system for enabling appropriate NOx elimination according to the states of an internal combustion engine and a NOx catalyst.SOLUTION: A NOx catalyst 21 is provided in an exhaust passage 12 of an engine 10. A hydrocarbon supply part 31 supplies hydrocarbon as reductant to the NOx catalyst 21. An operation state detection part 41 detects the operation state of the engine 10. A catalyst state change estimation part 42 estimates a change in the state of the NOx catalyst 21 on the basis of the operation state detected by the operation state detection part 41. A reductant species control part 43, a reformer 25, and a heater 26 control the species of the hydrocarbon to be supplied to the NOx catalyst 21 on the basis of the change in the state of the NOx catalyst 21 estimated by the catalyst state change estimation part 42.SELECTED DRAWING: Figure 1
【課題】内燃機関およびＮＯｘ触媒の状態に応じて、適切なＮＯｘ浄化が可能な排気浄化システムを提供する。【解決手段】ＮＯｘ触媒２１は、エンジン１０の排気通路１２に設けられる。炭化水素供給部３１は、ＮＯｘ触媒２１に還元剤としての炭化水素を供給する。運転状態検出部４１は、エンジン１０の運転状態を検出する。触媒状態変化推定部４２は、運転状態検出部４１により検出した運転状態に基づき、ＮＯｘ触媒２１の状態の変化を推定する。還元剤種制御部４３、改質器２５、ヒータ２６は、触媒状態変化推定部４２により推定したＮＯｘ触媒２１の状態の変化に基づき、ＮＯｘ触媒２１に供給される炭化水素の種類を制御する。【選択図】図１</description><subject>BLASTING</subject><subject>COMBUSTION ENGINES</subject><subject>COMBUSTION ENGINES IN GENERAL</subject><subject>ENGINE PLANTS IN GENERAL</subject><subject>GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES</subject><subject>GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL</subject><subject>HEATING</subject><subject>HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS</subject><subject>INTERNAL-COMBUSTION PISTON ENGINES</subject><subject>LIGHTING</subject><subject>MACHINES OR ENGINES IN GENERAL</subject><subject>MECHANICAL ENGINEERING</subject><subject>STEAM ENGINES</subject><subject>SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2019</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZJB3jfBwDA0OUXD19QwO9vT3U3D29wsJ8vdRCI4MDnH15WFgTUvMKU7lhdLcDEpuriHOHrqpBfnxqcUFicmpeakl8V4BRgaGlkYGxsYW5o7GRCkCADqJIm8</recordid><startdate>20191128</startdate><enddate>20191128</enddate><creator>MOTOO KOHEI</creator><scope>EVB</scope></search><sort><creationdate>20191128</creationdate><title>EXHAUST EMISSION CONTROL SYSTEM</title><author>MOTOO KOHEI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2019203387A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; jpn</language><creationdate>2019</creationdate><topic>BLASTING</topic><topic>COMBUSTION ENGINES</topic><topic>COMBUSTION ENGINES IN GENERAL</topic><topic>ENGINE PLANTS IN GENERAL</topic><topic>GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES</topic><topic>GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL</topic><topic>HEATING</topic><topic>HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS</topic><topic>INTERNAL-COMBUSTION PISTON ENGINES</topic><topic>LIGHTING</topic><topic>MACHINES OR ENGINES IN GENERAL</topic><topic>MECHANICAL ENGINEERING</topic><topic>STEAM ENGINES</topic><topic>SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>MOTOO KOHEI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>MOTOO KOHEI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>EXHAUST EMISSION CONTROL SYSTEM</title><date>2019-11-28</date><risdate>2019</risdate><abstract>To provide an exhaust emission control system for enabling appropriate NOx elimination according to the states of an internal combustion engine and a NOx catalyst.SOLUTION: A NOx catalyst 21 is provided in an exhaust passage 12 of an engine 10. A hydrocarbon supply part 31 supplies hydrocarbon as reductant to the NOx catalyst 21. An operation state detection part 41 detects the operation state of the engine 10. A catalyst state change estimation part 42 estimates a change in the state of the NOx catalyst 21 on the basis of the operation state detected by the operation state detection part 41. A reductant species control part 43, a reformer 25, and a heater 26 control the species of the hydrocarbon to be supplied to the NOx catalyst 21 on the basis of the change in the state of the NOx catalyst 21 estimated by the catalyst state change estimation part 42.SELECTED DRAWING: Figure 1
【課題】内燃機関およびＮＯｘ触媒の状態に応じて、適切なＮＯｘ浄化が可能な排気浄化システムを提供する。【解決手段】ＮＯｘ触媒２１は、エンジン１０の排気通路１２に設けられる。炭化水素供給部３１は、ＮＯｘ触媒２１に還元剤としての炭化水素を供給する。運転状態検出部４１は、エンジン１０の運転状態を検出する。触媒状態変化推定部４２は、運転状態検出部４１により検出した運転状態に基づき、ＮＯｘ触媒２１の状態の変化を推定する。還元剤種制御部４３、改質器２５、ヒータ２６は、触媒状態変化推定部４２により推定したＮＯｘ触媒２１の状態の変化に基づき、ＮＯｘ触媒２１に供給される炭化水素の種類を制御する。【選択図】図１</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | BLASTING COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL ENGINE PLANTS IN GENERAL GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INTERNAL-COMBUSTION PISTON ENGINES LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING STEAM ENGINES SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF WEAPONS |
| title | EXHAUST EMISSION CONTROL SYSTEM |
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