US20070144158A1 - Exhaust dispersion device - Google Patents
Exhaust dispersion device Download PDFInfo
- Publication number
- US20070144158A1 US20070144158A1 US11/316,170 US31617005A US2007144158A1 US 20070144158 A1 US20070144158 A1 US 20070144158A1 US 31617005 A US31617005 A US 31617005A US 2007144158 A1 US2007144158 A1 US 2007144158A1
- Authority
- US
- United States
- Prior art keywords
- dispersion
- exhaust
- outer flow
- axis
- flow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Images
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
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/16—Silencing apparatus characterised by method of silencing by using movable parts
- F01N1/18—Silencing apparatus characterised by method of silencing by using movable parts having rotary movement
-
- 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
- F01N3/24—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 constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
- F01N3/2892—Exhaust flow directors or the like, e.g. upstream of catalytic device
-
- 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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
-
- 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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/20—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having flared outlets, e.g. of fish-tail shape
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
- F15D1/00—Influencing flow of fluids
- F15D1/02—Influencing flow of fluids in pipes or conduits
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Toxicology (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Exhaust Gas After Treatment (AREA)
- Processes For Solid Components From Exhaust (AREA)
- Exhaust Silencers (AREA)
Abstract
Description
- The present disclosure relates generally to an exhaust system, and more particularly relates to an exhaust dispersion device for an exhaust system.
- The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.
- A variety of exhaust systems exist for vehicles and other machines. Some exhaust systems include catalytic converters, diesel particulate filters, NOX traps, or other devices with one or more substrates that treat the exhaust gas flowing through the exhaust system.
- It is desirable to maintain a uniform flow of exhaust gas radially across the substrate face. This is desirable because the substrate can perform more effectively. For example, in a diesel particulate filter, soot is more likely to be distributed evenly on the substrate if the flow of exhaust gas is uniform. Also, regeneration within the system can occur more effectively. Uniform flow is also desirable because the substrate will likely have a longer operating life. For example, if a substantial temperature gradient develops in the radial direction on the substrate, the substrate can crack; however, if the flow of exhaust gas is more uniform at the substrate face, a substantial temperature gradient is unlikely to develop.
- However, in conventional exhaust systems, the flow of exhaust gas tends to be heavier at the axial center of the substrate face than at the radially outward positions of the substrate face. As such, the substrate operates less effectively, and the substrate is more likely to be damaged. Accordingly, there remains a need for an exhaust system that maintains a more uniform flow of exhaust gas across the substrate face.
- The present disclosure relates to an exhaust dispersion device for an exhaust system with an outer flow member. The exhaust dispersion device includes a dispersion member capable of being disposed within the outer flow member. The dispersion member defines an axis and includes an upstream end and a downstream end. A cross section of the downstream end perpendicular to the axis is larger than a cross section of the upstream end perpendicular to the axis. The dispersion device also includes an aperture extending through the dispersion member. The aperture is coaxial with the axis. Flow of all exhaust gas through the outer flow member is divided between flow through the aperture and flow between the outer flow member and the dispersion member. The dispersion member is operable to divert the flow of the exhaust gas at least partially toward the outer flow member.
- In another aspect, the present disclosure relates to an exhaust system that includes an outer flow member and an exhaust dispersion device disposed within the outer flow member. The exhaust dispersion device includes a dispersion member that defines an axis. The dispersion member includes an upstream end and a downstream end. A cross section of the downstream end perpendicular to the axis is larger than a cross section of the upstream end perpendicular to the axis. The exhaust dispersion device also includes an aperture extending through the dispersion member. The aperture is coaxial with the axis. Flow of all exhaust gas through the outer flow member is divided between flow through the aperture and flow between the outer flow member and the dispersion member. The dispersion member is operable to divert the flow of the exhaust gas at least partially toward the outer flow member.
- In still another aspect, the present disclosure relates to an exhaust system for a vehicle that includes an outer flow member and a substrate that is disposed within the outer flow member such that an exhaust gas within the outer flow member can flow toward the substrate. The exhaust system also includes an exhaust dispersion device disposed within the outer flow member. The exhaust dispersion device includes a dispersion member that defines an axis. The dispersion member includes an upstream end and a downstream end. A cross section of the downstream end perpendicular to the axis is larger than a cross section of the upstream end perpendicular to the axis. The exhaust dispersion device also includes an aperture extending through the dispersion member. The aperture is coaxial with the axis. Flow of all the exhaust gas through the outer flow member is divided between flow through the aperture toward the substrate and flow between the outer flow member and the dispersion member toward the substrate. The dispersion member is operable to divert the flow of the exhaust gas at least partially toward the outer flow member as the exhaust gas flows toward the substrate.
- Further areas of applicability will become apparent from the description provided herein. It should be understood that the description and specific examples are intended for purposes of illustration only and are not intended to limit the scope of the present disclosure.
- The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way.
-
FIG. 1 is a cross-sectional view of a portion of an exhaust system of a vehicle with an exhaust dispersion device; -
FIG. 2 is an isometric view of the exhaust system ofFIG. 1 ; -
FIG. 3 is an isometric view of another embodiment of the exhaust dispersion device; and -
FIG. 4 is an end view of the exhaust dispersion device ofFIG. 3 . - The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, or uses. It should be understood that throughout the drawings, corresponding reference numerals indicate like or corresponding parts and features.
- Referring now to
FIGS. 1 and 2 , a portion of avehicle 10, specifically, a portion of anexhaust system 12 is shown. It will be appreciated that theexhaust system 12 could be included in any other machine besides avehicle 10 without departing from the scope of the present disclosure. - The
exhaust system 12 includes anouter flow member 14. Theouter flow member 14 can be a portion of an exhaust after-treatment device, such as a catalytic converter, a diesel particulate filter, an NOX trap, and/or any suitable device without departing from the scope of the present disclosure. - The
exhaust system 12 also includes a substrate 16 (FIG. 1 ). Thesubstrate 16 is disposed within theouter flow member 14. Thesubstrate 16 is operable for removing substances from exhaust gas that flows through theexhaust system 12. More specifically, theexhaust system 12 is in fluid communication with an engine (not shown), and exhaust gases from the engine flow through theouter flow member 14 toward thesubstrate 16. The exhaust gases flow through thesubstrate 16, and thesubstrate 16 removes substances, such as soot, carbon monoxide, unburned hydrocarbons, particulate matter and the like. - The
exhaust system 12 also includes an exhaust dispersion device generally indicated at 18. As will be discussed, theexhaust dispersion device 18 is operable to cause more uniform flow of exhaust gases across anupstream face 20 of thesubstrate 16. - In the embodiment shown, the
outer flow member 14 includes aninlet member 11 and atruncated conic member 13. The truncatedconic member 13 is coupled to theinlet member 11 at atransition 15. Thetransition 15 can have any suitable radius. In one embodiment, theinlet member 11 is coupled to the truncatedconic member 13 by welding. In another embodiment, theinlet member 11 and the truncatedconic member 13 are integrally attached. In the embodiment shown, theinlet member 11 has a circular cross section and is co-axial with theconic member 13. It will be appreciated, however, that theouter flow member 14 could be of any suitable shape without departing from the scope of the present disclosure. - The smaller end of the
conic member 13 is coupled to theinlet member 11 such that the cross-sectional area of theouter flow member 14 increases moving away from theinlet member 11. Also, in the embodiment shown, thesubstrate 16 is disposed within theouter flow member 14 at the maximum cross-sectional area of theouter flow member 14. - The
exhaust dispersion device 18 includes aninlet member 22 and adispersion member 24 coupled to theinlet member 22. In the embodiment shown, theinlet member 22 has a circular cross-section and is axially straight such that a cross-sectional area of theinlet member 22 perpendicular to the axis A is approximately constant along the length of theinlet member 22. Thedispersion member 24, on the other hand, has a truncated conic shape and includes anupstream end 26 and a downstream end 28 (FIG. 1 ). Theupstream end 26 of thedispersion member 24 is coupled to theinlet member 22. Accordingly, a cross section of thedownstream end 28 perpendicular to the axis, A, is larger than a cross section of theupstream end 26 perpendicular to the axis, A. It will be appreciated that theinlet member 22 and thedispersion member 24 could be of any suitable shape without departing from the scope of the present disclosure. - The
exhaust dispersion device 18 also includes an aperture 30 (FIG. 2 ) that extends through theinlet member 22 and thedispersion member 24. Theaperture 30 is coaxial with the axis, A. In the embodiment shown, the wall thickness of theinlet member 22 and thedispersion member 24 remains constant across the length of theexhaust dispersion device 18 such that the cross-sectional area of theaperture 30 remains generally constant through theinlet member 22 and increases across the length of thedispersion member 24 moving away from theinlet member 22. Accordingly, the flow of all exhaust gas (represented by dashed arrows inFIG. 1 ) is divided between flow through theaperture 30 toward thesubstrate 16 and flow between theouter flow member 14 and theexhaust dispersion device 18 toward thesubstrate 16. - The
exhaust dispersion device 18 further includes at least onesupport member 32. In the embodiment shown, theexhaust dispersion device 18 includes a plurality ofsupport members 32 spaced equally from each other about the axis A. Eachsupport member 32 is coupled to theinlet member 22 at one end, and eachsupport member 32 is also coupled at an opposite end to theouter flow member 14. In the embodiment shown, eachsupport member 32 includes atab 34 at one end to facilitate attachment to theouter flow member 14. In one embodiment, theexhaust dispersion device 18 is coupled to theinlet member 11 of theouter flow member 14, and then the truncatedconic member 13 is coupled to theinlet member 11. - Accordingly, the
support members 32 couple theexhaust dispersion device 18 to theouter flow member 14 such that theinlet member 22 is disposed upstream of thedispersion member 24. Thesupport members 32 also couple theexhaust dispersion device 18 to theouter flow member 14 such that thedispersion member 24 is disposed in spaced relationship relative to theouter flow member 14. In the embodiment shown, thedispersion member 24 and theinlet member 22 are co-axial with theouter flow member 14; however, thedispersion member 24 and theinlet member 22 could be misaligned with theouter flow member 14 without departing from the scope of the present disclosure. - Furthermore, the
exhaust dispersion device 18 is disposed within theouter flow member 14 such that a cross section taken approximately through thetransition 15 perpendicular to the axis, A, intersects theexhaust dispersion device 18. In addition, a first angle, θ, measured between the axis, A, and a peripheral wall of theouter flow member 14 is at most equal to a second angle, θ′, measured between the axis, A, and a peripheral wall of thedispersion member 24. In the embodiment, the first angle, θ, is less than the second angle, θ′. - As represented by the dashed arrows of
FIG. 1 , theexhaust dispersion device 18 forces the flow of exhaust gas outward radially toward theouter flow member 14. Accordingly, the flow of exhaust gas is more evenly distributed across theupstream face 20 of thesubstrate 16. As such, thesubstrate 16 can function more effectively, and the operating life of thesubstrate 16 increases. - Referring now to
FIGS. 3 and 4 , another embodiment of thedispersion device 118 is illustrated, wherein like numerals increased by 100 represent like features with respect to the embodiment ofFIGS. 1 and 2 . As shown, thedispersion device 118 includes adispersion member 124 and a plurality ofsupport members 132. Thedispersion device 118 also includes arelief 133 that extends from thedownstream end 128 toward theupstream end 126. There is arelief 133 on each side of eachsupport member 132. - Furthermore, each
support member 132 includes anupstream face 135. As shown inFIG. 4 , theupstream face 135 is disposed at a positive angle, θ″, relative to a plane that is perpendicular to the axis A. Accordingly, the flow of exhaust gas is diverted at least partially by thedispersion member 124 toward the outer flow member, and theupstream face 135 of eachsupport member 132 further diverts the flow of the exhaust gas for more even flow distribution across the upstream face of the substrate.
Claims (20)
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/316,170 US20070144158A1 (en) | 2005-12-22 | 2005-12-22 | Exhaust dispersion device |
KR1020087015120A KR20080080992A (en) | 2005-12-22 | 2006-11-16 | Exhaust dispersion device |
BRPI0620635-2A BRPI0620635A2 (en) | 2005-12-22 | 2006-11-16 | exhaust dispersion device |
DE112006003493T DE112006003493T5 (en) | 2005-12-22 | 2006-11-16 | Exhaust dispersion |
PCT/US2006/044621 WO2007078441A1 (en) | 2005-12-22 | 2006-11-16 | Exhaust dispersion device |
CNA2006800480888A CN101341326A (en) | 2005-12-22 | 2006-11-16 | Exhaust dispersion device |
JP2008547237A JP2009521639A (en) | 2005-12-22 | 2006-11-16 | Exhaust dispersion device |
GB0810187A GB2447577A (en) | 2005-12-22 | 2008-06-04 | Exhaust dispersion device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/316,170 US20070144158A1 (en) | 2005-12-22 | 2005-12-22 | Exhaust dispersion device |
Publications (1)
Publication Number | Publication Date |
---|---|
US20070144158A1 true US20070144158A1 (en) | 2007-06-28 |
Family
ID=38192003
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/316,170 Abandoned US20070144158A1 (en) | 2005-12-22 | 2005-12-22 | Exhaust dispersion device |
Country Status (8)
Country | Link |
---|---|
US (1) | US20070144158A1 (en) |
JP (1) | JP2009521639A (en) |
KR (1) | KR20080080992A (en) |
CN (1) | CN101341326A (en) |
BR (1) | BRPI0620635A2 (en) |
DE (1) | DE112006003493T5 (en) |
GB (1) | GB2447577A (en) |
WO (1) | WO2007078441A1 (en) |
Cited By (31)
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US20080116005A1 (en) * | 2006-11-20 | 2008-05-22 | Matte Francois | Exhaust gas diffuser |
US20080115989A1 (en) * | 2006-11-20 | 2008-05-22 | Matte Francois | Diesel engine vehicle configurations for evacuation of engine and/or exhaust system heat |
US20090000287A1 (en) * | 2007-05-15 | 2009-01-01 | Jared Dean Blaisdell | Exhaust Gas Flow Device |
US20090025392A1 (en) * | 2007-07-25 | 2009-01-29 | Georg Wirth | Flow guide device as well as exhaust system equipped therewith |
US20090235653A1 (en) * | 2008-03-21 | 2009-09-24 | Gm Global Technology Operations, Inc | Particulate matter filter assembly with a flow device |
WO2009131666A1 (en) * | 2008-04-25 | 2009-10-29 | Tenneco Automotive Operating Company, Inc. | Exhaust gas additive/treatment system and mixer for use therein |
US20100212301A1 (en) * | 2008-12-17 | 2010-08-26 | Korneel De Rudder | Flow Device for an Exhaust System |
US20100218489A1 (en) * | 2006-11-23 | 2010-09-02 | Robert Bosch Gmbh | Method for checking the completeness of a regeneration of a particle fileter in the exhaust gas of an internal combustion engine |
US20110214419A1 (en) * | 2010-03-05 | 2011-09-08 | Paccar Inc | Exhaust diffuser |
US20110239631A1 (en) * | 2010-04-05 | 2011-10-06 | Caterpillar Inc. | Ring Reductant Mixer |
US20130091830A1 (en) * | 2011-10-18 | 2013-04-18 | GM Global Technology Operations LLC | Assembly for mixing liquid within gas flow |
US8539761B2 (en) | 2010-01-12 | 2013-09-24 | Donaldson Company, Inc. | Flow device for exhaust treatment system |
US20140044603A1 (en) * | 2010-12-15 | 2014-02-13 | Faurecia Systemes D'echappement | Device for generating ammonia |
EP2713023A1 (en) * | 2012-09-28 | 2014-04-02 | Katcon Global S.A. | Exhaust assembly |
US20140216015A1 (en) * | 2011-08-25 | 2014-08-07 | Toyota Jidosha Kabushiki Kaisha | Exhaust gas purification apparatus for internal combustion engine |
US20140260220A1 (en) * | 2011-10-27 | 2014-09-18 | Volkswagen Aktiengesellschaft | Exhaust purification device |
US8938954B2 (en) | 2012-04-19 | 2015-01-27 | Donaldson Company, Inc. | Integrated exhaust treatment device having compact configuration |
US20150052879A1 (en) * | 2012-04-13 | 2015-02-26 | International Engine Intellectual Property Company , Llc | Mixing plate as stabilizer for ammonia gas injector |
US20150071824A1 (en) * | 2012-04-12 | 2015-03-12 | International Engine Intellectual Property Company ,Llc | Mixing plate providing reductant distribution |
FR3012519A3 (en) * | 2013-10-25 | 2015-05-01 | Renault Sa | CATALYST FOR AN EXHAUST LINE OF A GAS STREAM |
US9057312B2 (en) * | 2013-10-10 | 2015-06-16 | Cummins Emission Solutions, Inc. | System and apparatus for reducing reductant deposit formation in exhaust aftertreatment systems |
US20150198073A1 (en) * | 2014-01-13 | 2015-07-16 | Caterpillar, Inc. | Exhaust aftertreatment system with in-elbow reductant injection |
FR3016655A1 (en) * | 2014-01-21 | 2015-07-24 | Renault Sa | CATALYTIC POST-PROCESSING DEVICE OF A MOTOR VEHICLE AND ADAPTED DEFLECTOR |
US9670811B2 (en) | 2010-06-22 | 2017-06-06 | Donaldson Company, Inc. | Dosing and mixing arrangement for use in exhaust aftertreatment |
US9707525B2 (en) | 2013-02-15 | 2017-07-18 | Donaldson Company, Inc. | Dosing and mixing arrangement for use in exhaust aftertreatment |
FR3048450A1 (en) * | 2016-03-01 | 2017-09-08 | Renault Sas | CATALYTIC POST-PROCESSING DEVICE OF A MOTOR VEHICLE HAVING A DEFLECTOR |
US10092886B2 (en) * | 2011-10-11 | 2018-10-09 | Kawasaki Jukogyo Kabushiki Kaisha | Fluid mixer and heat exchange system using same |
US10641150B2 (en) * | 2018-04-11 | 2020-05-05 | Toyota Jidosha Kabushiki Kaisha | Exhaust purification system of an internal combustion engine |
US11274583B1 (en) * | 2019-11-05 | 2022-03-15 | Sonix Enterprises Inc. | Internal combustion engine exhaust modification system |
US20220203314A1 (en) * | 2020-12-25 | 2022-06-30 | Kubota Corporation | Exhaust gas diffusing device |
US11591941B2 (en) | 2019-11-05 | 2023-02-28 | Sonix Enterprises Inc. | Internal combustion engine exhaust modification system |
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CN110566318B (en) * | 2019-09-30 | 2020-12-22 | 潍柴动力股份有限公司 | Engine tail gas treatment system and treatment method |
CN114718757A (en) * | 2022-03-23 | 2022-07-08 | 西北工业大学 | Design scheme of tail spray pipe of micro turbojet engine |
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2005
- 2005-12-22 US US11/316,170 patent/US20070144158A1/en not_active Abandoned
-
2006
- 2006-11-16 WO PCT/US2006/044621 patent/WO2007078441A1/en active Application Filing
- 2006-11-16 BR BRPI0620635-2A patent/BRPI0620635A2/en not_active Application Discontinuation
- 2006-11-16 JP JP2008547237A patent/JP2009521639A/en active Pending
- 2006-11-16 CN CNA2006800480888A patent/CN101341326A/en active Pending
- 2006-11-16 KR KR1020087015120A patent/KR20080080992A/en not_active Application Discontinuation
- 2006-11-16 DE DE112006003493T patent/DE112006003493T5/en not_active Withdrawn
-
2008
- 2008-06-04 GB GB0810187A patent/GB2447577A/en not_active Withdrawn
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Also Published As
Publication number | Publication date |
---|---|
JP2009521639A (en) | 2009-06-04 |
KR20080080992A (en) | 2008-09-05 |
GB2447577A (en) | 2008-09-17 |
BRPI0620635A2 (en) | 2011-11-16 |
GB0810187D0 (en) | 2008-07-09 |
WO2007078441A1 (en) | 2007-07-12 |
DE112006003493T5 (en) | 2008-10-23 |
CN101341326A (en) | 2009-01-07 |
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