WO2005073526A1 - Scrマフラー - Google Patents
Scrマフラー Download PDFInfo
- Publication number
- WO2005073526A1 WO2005073526A1 PCT/JP2005/001456 JP2005001456W WO2005073526A1 WO 2005073526 A1 WO2005073526 A1 WO 2005073526A1 JP 2005001456 W JP2005001456 W JP 2005001456W WO 2005073526 A1 WO2005073526 A1 WO 2005073526A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- reducing agent
- exhaust gas
- scr
- exhaust pipe
- plate
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2066—Selective catalytic reduction [SCR]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/9404—Removing only nitrogen compounds
- B01D53/9409—Nitrogen oxides
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
- F01N2240/20—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a flow director or deflector
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
- F01N2570/14—Nitrogen oxides
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Definitions
- the present invention relates to an SCR muffler equipped with an SCR catalyst for selectively reducing and purifying nitrogen oxide (NOx) contained in exhaust gas.
- NOx nitrogen oxide
- vent holes such as punching holes (see, for example, Japanese Utility Model Publication No. 2-115912).
- the reducing agent supply nozzle vibrates due to the influence of vehicle vibration, exhaust gas, etc., so that the reducing agent or reducing agent precursor such as urea water is uniformly dispersed. In this state, it is difficult to spray and supply exhaust gas. NOx) purification efficiency is low!
- the present invention improves the flow of exhaust gas, and nitrogen oxide (NO) contained in the exhaust gas.
- the purpose is to provide an SCR muffler that can improve the purification efficiency of X).
- the present invention improves the purification efficiency of nitrogen oxides (NOx) by the SCR catalyst by suppressing or mitigating vibrations caused by the influence of vehicle vibrations and exhaust gas received by the reducing agent supply nozzle. It is another object of the present invention to provide an SCR muffler capable of improving the durability of a supply nozzle for reducing agent and the like.
- NOx nitrogen oxides
- the present invention provides an SCR catalyst for selectively reducing and purifying nitrogen oxides (NOx) contained in exhaust gas, and an exhaust gas that causes the exhaust gas to flow into the SCR catalyst.
- an SCR muffler equipped with a pipe and a means for supplying a reducing agent or the like for supplying a reducing agent or a reducing agent precursor to the exhaust gas from the exhaust pipe, an exhaust gas is provided downstream of the reducing agent supply means and upstream of the SCR catalyst. It is characterized by the provision of a plate with vent holes to disperse and equalize the gas flow.
- the plate is attached to the end of the exhaust pipe, has a larger diameter than the exhaust pipe, and is disposed only in a region where the vent hole has a larger diameter than the exhaust pipe. It may be a feature.
- the plate of the present invention may have a cross-sectional shape that is convex toward the upstream side in the exhaust pipe.
- the present invention provides an SCR catalyst for selectively reducing and purifying nitrogen oxide (NOx) contained in the exhaust gas, an exhaust gas flowing into the SCR catalyst, and a vent hole in the muffler insertion portion.
- a SCR muffler equipped with an exhaust pipe and a supply of reducing agent or the like for supplying a reducing agent or a reducing agent precursor to the exhaust gas, characterized in that only the exhaust pipe is blocked with a plate without vent holes.
- the plate of the present invention may have a cross-sectional shape that is convex toward the upstream side in the exhaust pipe.
- the present invention provides an SCR catalyst for selectively reducing and purifying nitrogen oxide (NOx) contained in exhaust gas, an exhaust pipe for allowing the exhaust gas to flow into the SCR catalyst, and reducing to exhaust gas.
- NOx nitrogen oxide
- a SCR muffler equipped with a reducing agent supply nozzle for supplying a reducing agent or reducing agent precursor a plate having a vent hole is inserted into the reducing agent supply nozzle, and the plate is held in an exhaust pipe.
- FIG. 1 is a basic model diagram of an SCR muffler in an embodiment of the present invention.
- FIG. 2 is a schematic diagram of an SCR muffler in the case where only the exhaust pipe 2 is closed with a plate without a vent hole.
- FIG. 3 is a cross-sectional view of a plate 4 having vent holes 5 in the first embodiment of the present invention.
- FIG. 4 is a view showing the flow of exhaust gas flowing into the SCR catalyst 1 in the first embodiment of the present invention.
- FIG. 5 is a view showing the flow of exhaust gas flowing into the SCR catalyst 1 when only the exhaust pipe 2 is closed with the plate 4 having no vent hole in the first embodiment of the present invention.
- FIG. 6 is a basic model diagram of an SCR muffler in a second embodiment of the present invention.
- FIG. 7 is a projection view inside the exhaust pipe in the second embodiment of the present invention.
- Reducing agent supply means Reducing agent supply nozzle
- FIG. 1 is a basic model diagram of the SCR muffler according to the first embodiment of the present invention.
- the SCR catalyst 1 for selectively reducing and purifying nitrogen oxide (NOx) contained in exhaust gas, and the exhaust gas to SCR
- An exhaust pipe 2 that flows into the catalyst 1 and a reducing agent supply means 3 that supplies a reducing agent or a reducing agent precursor to the exhaust gas are provided, downstream of the reducing agent supply means 3 and upstream of the SCR catalyst 1.
- a plate 4 having vent holes 5 for dispersing and equalizing the flow of exhaust gas is provided.
- the force showing the exhaust pipe 2 inserted into the muffler is shown.
- the exhaust pipe 2 and the muffler without the exhaust pipe 2 being inserted into the muffler are formed into a body. Also good. Further, there are no restrictions on the form such as a series type, a parallel type, a round type and a cylindrical type.
- the plate 4 having the air holes 5 is described as closing the exhaust pipe 2 and the muffler, but the present invention is not limited to such a form. It is not a thing. That is, the plate 4 having the vent hole 5 may be provided at the downstream end port of the exhaust pipe 2 close to the SCR catalyst 1, but as another form, the downstream side of the supply means 3 such as the reducing agent and the SCR catalyst 1 However, it may be provided in the middle of the exhaust pipe 2 or may be provided in the muffler itself without being provided in the exhaust pipe 2.
- the present invention uses the plate 4 having no vent hole to It may be in the form of blocking only.
- the exhaust gas passes through the exhaust pipe 2, flows from the upstream side to the downstream side, and flows into the SCR catalyst 1.
- Exhaust gas is emitted from internal combustion engines such as diesel engine, and as harmful substances, unburned hydrocarbons (HC), monoxide-carbon (CO), monoxide-nitrogen (NO), diacid Contains nitrogen oxides (NOx) such as nitrogen (NO)
- the reducing agent or reducing agent precursor includes a reducing agent precursor such as a substance that liberates the reducing agent as well as the reducing agent itself, Any of hydrocarbon, cyanuric acid, ammonia, ammonium carbonate, ammonium carnomate, urea and the like may be used. Of these, a plurality may be combined. Furthermore, such a reducing agent or reducing agent precursor may be in a solid state, a liquid state or a gaseous state!
- the reducing agent supply means 3 may supply ammonia itself as a reducing agent! / ⁇ Strength Ammonia has a strong odor and is highly toxic at a relatively high concentration. What is spray-fed as a reducing agent precursor is preferable. At this time, urea in the urea water is contacted and mixed with the exhaust gas in the exhaust pipe, and is thermally decomposed or hydrolyzed to release ammonia as a reducing agent. In this embodiment, urea water is sprayed and supplied to the exhaust gas in the exhaust pipe through the addition nozzle.
- the exhaust gas further flows in the downstream direction in the exhaust pipe, reaches the upstream side of the SCR catalyst 1, and reaches the plate 4 having the vent hole 5.
- FIG. 3 is a cross-sectional view of the plate 4 having the vent hole 5 according to the first embodiment of the present invention.
- the vent hole 5 is not disposed in the central portion that closes the exhaust pipe 2, and is from the exhaust pipe port.
- a plurality of circular vent holes 5 are arranged concentrically and in a staggered manner only at the periphery of the large-diameter region.
- the vent hole 5 in the present invention may have any shape such as a circle, an ellipse, a long hole, a fan, and other polygons, but these are preferably punched holes. Multiple combinations may be used.
- the size and number of the vent holes 5 may be large or small. Further, it is preferable that the vent holes 5 are arranged only in a region having a diameter larger than that of the exhaust pipe which is preferably arranged uniformly and in contrast!
- the plate 4 in the present invention may have any shape such as a circular shape, an elliptical shape, a square shape, a conical shape, or other polygonal shapes, or a flat shape or a convex shape. Also,
- the cross-sectional shape of the convex plate is not limited to a semicircular shape, a triangular pyramid, or the like, and the direction may be a downstream direction, but is preferably an upstream direction.
- the size of the plate 4 is preferably such a size as to close the exhaust pipe 2 and the muffler tube opening, and more preferably larger than the exhaust pipe 2 as described above.
- the number of plates 4 may be one or more.
- the exhaust pipe 2 is completely blocked at the center portion where the vent hole 5 of the plate 4 is not disposed, and therefore flows through the exhaust pipe and reaches the plate 4. Exhaust gas cannot pass through plate 4 directly and is blocked by the plate surface. For this reason, the exhaust gas passes through the vent hole of the muffler insertion portion of the exhaust pipe 2 and flows out of the exhaust pipe. Then, the exhaust gas flows through the gap between the muffler and the exhaust pipe 2 and reaches the plate 4 again.
- the exhaust gas flowing out of the exhaust pipe passes through the peripheral portion of the plate 4 where the vent holes 5 are disposed, and flows into the SCR catalyst 1 on the downstream side thereof.
- nitrogen oxide (NOx) contained in the exhaust gas is adsorbed by the SCR catalyst 1.
- V O Vanadium pentoxide
- WO tungsten trioxide
- MoO molybdenum trioxide
- the SCR catalyst 1 may be supported on a catalyst carrier having a Hercam structure that may be caged.
- nitrogen oxide (NOx) contained in the exhaust gas is selectively reduced and purified, and is converted into environmentally friendly nitrogen and water.
- the nitrogen oxide (NOx) purification efficiency is affected by the flow of exhaust gas flowing into the SCR catalyst 1.
- FIG. 4 is a diagram showing the flow of the exhaust gas flowing into the SCR catalyst 1 in the first embodiment.
- FIG. 4 (a) shows the exhaust when the flat plate 4 having the vent holes 5 is provided.
- FIG. 4 (b) shows the flow of exhaust gas when the convex plate 4 having the vent holes 5 is provided.
- FIG. 5 is a diagram showing the flow of exhaust gas in the case where only the exhaust pipe 2 is closed with the plate 4 without the air holes shown in FIG.
- FIG. 6 is a basic model diagram of the SCR muffler according to the second embodiment of the present invention.
- the SCR catalyst 1 for selectively reducing and purifying nitrogen oxide (NOx) contained in the exhaust gas, and the exhaust
- NOx nitrogen oxide
- the reducing agent supply nozzle 30 The plate 40 having the vent hole 5 is inserted, and the plate 40 is held in the exhaust pipe 2.
- FIG. 6 (a) shows that a plate 40 having a bent portion (R type, bulge type, planar shape, etc.) is inserted at the tip of the reducing agent supply nozzle 30, and this bent portion is connected to the exhaust pipe 2.
- the SCR muffler is shown in which the plate 40 is held in the exhaust pipe 2 by adhering to the inner wall.
- FIG. 6 (b) shows that the conical plate 40 is inserted into the tip of the reducing agent supply nozzle 30, the bent portion on the bottom side is sandwiched between the flanges, and fixed, thereby fixing the plate 40 to the exhaust pipe 2 Show the SCR muffler held in!
- the exhaust gas passes through the exhaust pipe 2 and is upstream. Flows downstream and flows into the SCR catalyst 1.
- the exhaust gas flowing in the SCR muffler is supplied with the reducing agent or the reducing agent precursor by the reducing agent supply nozzle 30 until it flows into the SCR catalyst 1.
- a plate 40 having a vent hole 5 is inserted into the reducing agent supply nozzle 30, and this plate 40 is held by the exhaust pipe 2. For this reason, the vibration caused by the influence of the vehicle vibration and exhaust gas received by the supply nozzle 30 such as the reducing agent is suppressed or alleviated. As a result, the reducing agent or reducing agent precursor such as urea water is sprayed and supplied to the exhaust gas in a uniformly dispersed state. Further, since the reducing agent supply nozzle 30 is reinforced by the plate 40, durability is improved.
- FIG. 7 is a diagram in which the inside of the exhaust pipe of the SCR muffler in the second embodiment of the present invention is projected from the upstream side to the downstream side, and the exhaust gas passes through the vent holes 5 of the plate 40. And flows from the upstream side to the downstream side. Further, the reducing agent supply nozzle 30 is inserted in the center of the plate 40, and the reducing agent or reducing agent precursor such as urea water is spray-supplied from the upstream side to the downstream side for uniform dispersion. In this state, it is mixed with exhaust gas.
- the plate 40 in the present invention may have any shape such as a circular shape, an elliptical shape, a square shape, a conical shape, or other polygonal shapes, or a flat shape or a convex shape.
- the plate 40 is preferably sized so as to block the diameter of the exhaust pipe 2.
- the number of plates 40 may be one or more.
- the tip side force of the reducing agent supply nozzle 30 is also inserted, and the nozzle tip protrudes slightly. It is preferable to fix to the reducing agent supply nozzle 30.
- the plate 40 may be fixed to the inner wall of the exhaust pipe 2, or may be sandwiched between the outer flanges of the exhaust pipe 2 and fixed in other forms. There may be.
- the exhaust gas further flows in the downstream direction.
- nitrogen oxide (NOx) contained in the exhaust gas is adsorbed by the SCR catalyst 1, and selectively. Returned and purified.
- nitrogen oxides (NOx) are converted to environmentally friendly nitrogen and water.
- the exhaust gas flowing into the SCR catalyst 1 is sufficiently contact-mixed with a reducing agent or reducing agent precursor such as urea water, and the SC of nitrogen oxide (NOx) contained in the exhaust gas.
- the adsorption rate to R catalyst 1 is high. For this reason, the purification efficiency of nitrogen oxides (NOx) by the SCR catalyst 1 is improved.
- the present invention may be a combination of the first embodiment and the second embodiment.
- the flow of the exhaust gas flowing through the SCR muffler is improved, and the vibration caused by the influence of the vehicle and the exhaust gas received by the supply nozzle of the reducing agent can be suppressed or reduced.
- NOx nitrogen oxide
- the flow of exhaust gas flowing in the SCR muffler can be improved, and the purification efficiency of nitrogen oxide (NOx) contained in the exhaust gas can be improved.
- NOx nitrogen oxide
- the SCR muffler suppresses or reduces vehicle vibration received by the supply nozzle for reducing agent and the like, and vibration caused by the influence of exhaust gas, etc. This can be achieved by improving the purification efficiency of waste (NOx) and improving the durability of the supply nozzle for reducing agents.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES05704351.5T ES2476968T3 (es) | 2004-02-02 | 2005-02-02 | Silenciador de reducción catalítica selectiva |
EP05704351.5A EP1719884B1 (en) | 2004-02-02 | 2005-02-02 | Scr muffler |
US10/588,203 US7562521B2 (en) | 2004-02-02 | 2005-02-02 | SCR muffler |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-026074 | 2004-02-02 | ||
JP2004026074A JP4273011B2 (ja) | 2004-02-02 | 2004-02-02 | Scrマフラー |
JP2004-035448 | 2004-02-12 | ||
JP2004035448A JP2005226527A (ja) | 2004-02-12 | 2004-02-12 | Scrマフラー |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005073526A1 true WO2005073526A1 (ja) | 2005-08-11 |
Family
ID=34829447
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/001456 WO2005073526A1 (ja) | 2004-02-02 | 2005-02-02 | Scrマフラー |
Country Status (4)
Country | Link |
---|---|
US (1) | US7562521B2 (ja) |
EP (2) | EP1719884B1 (ja) |
ES (2) | ES2530982T3 (ja) |
WO (1) | WO2005073526A1 (ja) |
Cited By (5)
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JP2009103068A (ja) * | 2007-10-24 | 2009-05-14 | Hino Motors Ltd | 排気浄化装置 |
US8033104B2 (en) * | 2008-07-09 | 2011-10-11 | Ford Global Technologies, Llc | Selective catalytic reduction (SCR) catalyst injection systems |
EP1969213B1 (de) * | 2005-12-29 | 2011-10-26 | Robert Bosch GmbH | Einbauteil zur montage in einem abgasstrang einer verbrennungskraftmaschine |
US8506893B2 (en) | 2008-04-23 | 2013-08-13 | Ford Global Technologies, Llc | Selective catalytic reduction catalyst system with expanded temperature window |
US8776498B2 (en) | 2008-04-16 | 2014-07-15 | Ford Global Technologies, Llc | Air-injection system to improve effectiveness of selective catalytic reduction catalyst for gasoline engines |
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US8173088B2 (en) * | 2010-02-24 | 2012-05-08 | International Engine Intellectual Property Company, Llc | Method, system and apparatus for liquid injection into a gas system |
JP5292534B2 (ja) * | 2007-08-08 | 2013-09-18 | 日野自動車株式会社 | 排気浄化装置 |
US7736608B2 (en) * | 2007-11-29 | 2010-06-15 | General Electric Company | Methods and systems for reducing the emissions from combustion gases |
US7856807B2 (en) * | 2008-03-17 | 2010-12-28 | Cummins Filtration Ip, Inc. | Flow reversal chambers for increased residence time |
AR073448A1 (es) * | 2008-05-27 | 2010-11-10 | Fuel Tech Inc | Proceso para la reduccion catalitica selectiva de nox y aparato para proporcionar una mejor gasificacion de urea para formar un gas que contiene amoniaco |
US8756923B2 (en) * | 2010-11-24 | 2014-06-24 | Cnh Industrial America Llc | Mixing pipe for SCR mufflers |
WO2013188880A1 (en) | 2012-06-15 | 2013-12-19 | Cummins Ip, Inc. | Reductant decomposition and mixing system |
JP5939174B2 (ja) | 2013-02-18 | 2016-06-22 | 株式会社デンソー | 液体を用いたエンジン用後処理装置 |
US8966965B2 (en) * | 2013-04-12 | 2015-03-03 | Caterpillar Inc. | Selective catalytic reduction outlet mixing device |
US9435240B2 (en) | 2013-08-06 | 2016-09-06 | Tenneco Automotive Operating Company Inc. | Perforated mixing pipe with swirler |
US9410464B2 (en) | 2013-08-06 | 2016-08-09 | Tenneco Automotive Operating Company Inc. | Perforated mixing pipe with swirler |
US9267417B2 (en) | 2013-10-31 | 2016-02-23 | Faurecia Emissions Control Technologies Usa, Llc | Diffuser plate |
US9534525B2 (en) | 2015-05-27 | 2017-01-03 | Tenneco Automotive Operating Company Inc. | Mixer assembly for exhaust aftertreatment system |
US10100700B2 (en) | 2015-06-29 | 2018-10-16 | Tenneco Automotive Operating Company Inc. | Cantilevered flow distributing apparatus |
SE539834C2 (en) * | 2016-04-11 | 2017-12-12 | Scania Cv Ab | An injection arrangement for injection of a urea solution into an exhaust gas passage |
JP2018017215A (ja) * | 2016-07-29 | 2018-02-01 | ヤマハ発動機株式会社 | 船舶および船舶の排気構造 |
CN106762064A (zh) * | 2017-03-13 | 2017-05-31 | 上海航天能源股份有限公司 | 一种燃气内燃机分布式能源脱硝及消音一体化装置 |
US10563557B2 (en) | 2017-12-20 | 2020-02-18 | Cnh Industrial America Llc | Exhaust system for a work vehicle |
US10273854B1 (en) | 2017-12-20 | 2019-04-30 | Cnh Industrial America Llc | Exhaust system for a work vehicle |
NL2027378B1 (en) * | 2021-01-25 | 2022-08-12 | Array Ind B V | A pre-mixing unit for pre-mixing exhaust gas |
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2005
- 2005-02-02 ES ES12182261T patent/ES2530982T3/es active Active
- 2005-02-02 WO PCT/JP2005/001456 patent/WO2005073526A1/ja active Application Filing
- 2005-02-02 ES ES05704351.5T patent/ES2476968T3/es active Active
- 2005-02-02 US US10/588,203 patent/US7562521B2/en active Active
- 2005-02-02 EP EP05704351.5A patent/EP1719884B1/en active Active
- 2005-02-02 EP EP12182261.3A patent/EP2530269B1/en active Active
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EP1969213B1 (de) * | 2005-12-29 | 2011-10-26 | Robert Bosch GmbH | Einbauteil zur montage in einem abgasstrang einer verbrennungskraftmaschine |
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US8776498B2 (en) | 2008-04-16 | 2014-07-15 | Ford Global Technologies, Llc | Air-injection system to improve effectiveness of selective catalytic reduction catalyst for gasoline engines |
US9376949B2 (en) | 2008-04-16 | 2016-06-28 | Ford Global Technologies, Llc | Air-injection system to improve effectiveness of selective catalytic reduction catalyst |
US8506893B2 (en) | 2008-04-23 | 2013-08-13 | Ford Global Technologies, Llc | Selective catalytic reduction catalyst system with expanded temperature window |
US8033104B2 (en) * | 2008-07-09 | 2011-10-11 | Ford Global Technologies, Llc | Selective catalytic reduction (SCR) catalyst injection systems |
Also Published As
Publication number | Publication date |
---|---|
EP2530269B1 (en) | 2014-12-03 |
EP2530269A1 (en) | 2012-12-05 |
EP1719884A4 (en) | 2009-12-30 |
US20070169467A1 (en) | 2007-07-26 |
ES2476968T3 (es) | 2014-07-15 |
US7562521B2 (en) | 2009-07-21 |
EP1719884B1 (en) | 2014-04-02 |
ES2530982T3 (es) | 2015-03-09 |
EP1719884A1 (en) | 2006-11-08 |
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