JP2012193620A5 - - Google Patents
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- JP2012193620A5 JP2012193620A5 JP2011056111A JP2011056111A JP2012193620A5 JP 2012193620 A5 JP2012193620 A5 JP 2012193620A5 JP 2011056111 A JP2011056111 A JP 2011056111A JP 2011056111 A JP2011056111 A JP 2011056111A JP 2012193620 A5 JP2012193620 A5 JP 2012193620A5
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- exhaust gas
- injection nozzle
- ozone
- exhaust pipe
- upstream
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Description
本発明の第１の観点は、図１に示すように、エンジン１１の排気管１６に設けられ排ガス中のＮＯｘをＮ2に還元可能な選択還元型触媒１９と、選択還元型触媒１９より排ガス上流側の排気管１６に臨む流体噴射ノズル２３を有しこの流体噴射ノズル２３から選択還元型触媒１９で還元剤として機能する尿素系流体２２を排気管１６に供給する流体供給手段２１と、選択還元型触媒１９より排ガス上流側であって流体噴射ノズル２３より排ガス上流側の排気管１６に臨むオゾン噴射ノズル４３を有しこのオゾン噴射ノズル４３から排ガス中のＮＯをＮＯ2に酸化可能なオゾン４２を排気管１６に供給するオゾン供給手段４１とを備えた排ガス浄化装置である。 As shown in FIG. 1, the first aspect of the present invention is a selective reduction catalyst 19 provided in the exhaust pipe 16 of the engine 11 and capable of reducing NOx in the exhaust gas to N 2 , and the exhaust gas from the selective reduction catalyst 19. A fluid supply means 21 having a fluid injection nozzle 23 facing the upstream exhaust pipe 16 and supplying a urea-based fluid 22 that functions as a reducing agent in the selective reduction catalyst 19 from the fluid injection nozzle 23 to the exhaust pipe 16; Ozone that has an ozone injection nozzle 43 that faces the exhaust pipe 16 upstream of the reduction catalyst 19 and upstream of the fluid injection nozzle 23 and that can exhaust NO from the ozone injection nozzle 43 to NO 2. The exhaust gas purifying apparatus includes ozone supply means 41 for supplying 42 to the exhaust pipe 16.
なお、上記実施の形態では、本発明の排ガス浄化装置をディーゼルエンジンに適用したが、本発明の排ガス浄化装置をガソリンエンジンに適用してもよい。また、上記実施の形態では、本発明の排ガス浄化装置をターボ過給機付ディーゼルエンジンに適用したが、本発明の排ガス浄化装置を自然吸気型ディーゼルエンジン又は自然吸気型ガソリンエンジンに適用してもよい。更に、上記実施の形態では、オゾン発生器として無声放電型のものを用いたが、オゾン発生器として沿面放電型のもの、空気に紫外線を放射してオゾンを発生する方式のもの、水を電気分解してオゾンを発生する方式のもの等を用いてもよい。
In the above embodiment, the exhaust gas purification apparatus of the present invention is applied to a diesel engine. However, the exhaust gas purification apparatus of the present invention may be applied to a gasoline engine. In the above embodiment, the exhaust gas purifying apparatus of the present invention is applied to a turbocharged diesel engine. However, the exhaust gas purifying apparatus of the present invention is applied to a naturally aspirated diesel engine or a naturally aspirated gasoline engine. Good . In a further, in the above-described embodiment, used was a silent discharge type as an ozone generator, that of creeping discharge type as an ozone generator, of a type which generates ozone by radiating ultraviolet rays to the air, water A method of generating ozone by electrolysis may be used.
Claims (1)
前記選択還元型触媒(19)より排ガス上流側の排気管(16)に臨む流体噴射ノズル(23)を有しこの流体噴射ノズル(23)から前記選択還元型触媒(19)で還元剤として機能する尿素系流体(22)を前記排気管(16)に供給する流体供給手段(21)と、
前記選択還元型触媒(19)より排ガス上流側であって前記流体噴射ノズル(23)より排ガス上流側の排気管(16)に臨むオゾン噴射ノズル(43)を有しこのオゾン噴射ノズル(43)から前記排ガス中のＮＯをＮＯ2に酸化可能なオゾン(42)を前記排気管(16)に供給するオゾン供給手段(41)と
を備えた排ガス浄化装置。 A selective reduction catalyst (19) provided in the exhaust pipe (16) of the engine (11) and capable of reducing NOx in the exhaust gas to N 2 ;
It has a fluid injection nozzle (23) facing the exhaust pipe (16) upstream of the exhaust gas from the selective reduction catalyst (19) and functions as a reducing agent from the fluid injection nozzle (23) in the selective reduction catalyst (19). Fluid supply means (21) for supplying urea-based fluid (22) to the exhaust pipe (16);
The ozone injection nozzle (43) has an ozone injection nozzle (43) facing the exhaust pipe (16) upstream of the selective reduction catalyst (19) and upstream of the fluid injection nozzle (23) and upstream of the exhaust gas. exhaust gas purifying device provided with the exhaust pipe oxidizable ozone (42) into NO 2 and ozone supply means for supplying (16) (41) NO in the exhaust gas from.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011056111A JP2012193620A (en) | 2011-03-15 | 2011-03-15 | Exhaust gas purification device |
| EP12756980.4A EP2687694A4 (en) | 2011-03-15 | 2012-03-06 | Exhaust gas purification device |
| CN201280011011.9A CN103547774B (en) | 2011-03-15 | 2012-03-06 | Waste gas cleaning plant |
| US14/003,540 US9021792B2 (en) | 2011-03-15 | 2012-03-06 | Exhaust gas purification device |
| PCT/JP2012/055606 WO2012124531A1 (en) | 2011-03-15 | 2012-03-06 | Exhaust gas purification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011056111A JP2012193620A (en) | 2011-03-15 | 2011-03-15 | Exhaust gas purification device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2012193620A JP2012193620A (en) | 2012-10-11 |
| JP2012193620A5 true JP2012193620A5 (en) | 2014-04-24 |
Family
ID=47085749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2011056111A Pending JP2012193620A (en) | 2011-03-15 | 2011-03-15 | Exhaust gas purification device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2012193620A (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016501334A (en) * | 2012-11-20 | 2016-01-18 | ノストラム エナジー ピーティーイー．リミテッドＮｏｓｔｒｕｍ Ｅｎｅｒｇｙ Ｐｔｅ．Ｌｔｄ． | Internally cooled exhaust gas recirculation system and method for internal combustion engines |
| JP5719857B2 (en) | 2013-02-01 | 2015-05-20 | 日野自動車株式会社 | Exhaust purification system and ozone generator |
| JP6052257B2 (en) * | 2014-09-18 | 2016-12-27 | 株式会社デンソー | Reducing agent addition device |
| JP6333694B2 (en) * | 2014-09-30 | 2018-05-30 | 日野自動車株式会社 | Ozone generation control device |
| JP6459535B2 (en) * | 2015-01-16 | 2019-01-30 | 株式会社デンソー | Ozone supply device |
| JP6376088B2 (en) | 2015-09-08 | 2018-08-22 | 株式会社デンソー | Ozone supply device |
| JP6369455B2 (en) | 2015-12-24 | 2018-08-08 | 株式会社デンソー | Ozone supply control device |
| JP6610318B2 (en) | 2016-02-11 | 2019-11-27 | 株式会社デンソー | Ozone supply control device and ozone supply system |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3556728B2 (en) * | 1995-04-11 | 2004-08-25 | バブコック日立株式会社 | Exhaust gas denitration method and apparatus |
| JP2000262852A (en) * | 1999-03-16 | 2000-09-26 | Research Institute Of Innovative Technology For The Earth | Method for low temperature denitration |
| JP4529822B2 (en) * | 2005-07-05 | 2010-08-25 | トヨタ自動車株式会社 | Exhaust gas purification device for internal combustion engine |
| JP2009226327A (en) * | 2008-03-24 | 2009-10-08 | Toyota Motor Corp | CATALYST FOR SELECTIVELY REDUCING NOx |
| JP4952645B2 (en) * | 2008-04-25 | 2012-06-13 | トヨタ自動車株式会社 | Exhaust gas purification device for internal combustion engine |
| JP4726926B2 (en) * | 2008-05-22 | 2011-07-20 | 株式会社デンソー | Exhaust gas purification device for internal combustion engine |
| JP2010255583A (en) * | 2009-04-28 | 2010-11-11 | Toyota Motor Corp | Exhaust emission control device for internal combustion engine |
-
2011
- 2011-03-15 JP JP2011056111A patent/JP2012193620A/en active Pending
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