[특허]In-line flow diverter

In-line flow diverter 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F01N-003/00 F01N-003/20
출원번호	US-0193499 (2014-02-28)
등록번호	US-9347355 (2016-05-24)
발명자 / 주소	Floyd, Ryan A. Lowry, John M. Geer, Larry J.
출원인 / 주소	Tenneco Automotive Operating Company Inc.
대리인 / 주소	Harness, Dickey & Pierce, P.L.C.
인용정보	피인용 횟수 : 0 인용 특허 : 36

초록 ▼

An exhaust gas treatment system for reducing emissions from an engine includes an exhaust conduit adapted to supply an exhaust stream from the engine to an exhaust treatment device. The conduit includes an aperture. An injector injects a reagent through the aperture and into the exhaust stream. A flow modifier is positioned within the exhaust conduit upstream of the injector. The flow modifier includes a diverter for increasing the velocity of the exhaust gas at a predetermined location within the conduit relative to the injected reagent.

대표청구항 ▼

1. An exhaust gas treatment system for reducing emissions from an engine, the system comprising: an exhaust treatment device;an exhaust conduit adapted to supply an exhaust stream from the engine to the exhaust treatment device, the conduit including an aperture;an injector for injecting a reagent through the aperture and into the exhaust stream;a flow modifier positioned within the exhaust conduit, the flow modifier including a plate having a first end and a second end that are fixed to opposing sides of the exhaust conduit to suspend the plate within the exhaust conduit, wherein a majority of the plate is spaced apart from the exhaust conduit to at least partially define a gap therebetween and divide the exhaust stream into first and second portions, the plate further including a plurality of tabs extending from the plate and being inclined in a direction to direct the first portion of the exhaust stream in one of a direction toward or a direction away from the injector;wherein the tabs extend from the plate and include a shape corresponding to a shape of an adjacent aperture; andwherein the flow modifier is positioned upstream from the injector and the aperture adjacent to one of the tabs is positioned upstream from the same tab. 2. The exhaust gas treatment system of claim 1, wherein the plate includes first and second edges on opposite ends of the plate, the first and second edges extending parallel to one another and parallel to a longitudinal axis of the exhaust conduit. 3. The exhaust gas treatment system of claim 1, wherein the flow modifier is suspended on a same side of the exhaust conduit as the injector. 4. The exhaust gas treatment system of claim 1, wherein the flow modifier is suspended on an opposing side of the exhaust conduit as the injector. 5. The exhaust gas treatment system of claim 1, wherein the plate is curved and includes a radius larger than a radius of an inner surface of the exhaust conduit. 6. The exhaust gas treatment system of claim 1, wherein the plate is curved and circumferentially extends along an interior of the conduit 180 degrees. 7. An exhaust gas treatment system for reducing emissions from an engine, the system comprising: an exhaust treatment device;an exhaust conduit adapted to supply an exhaust stream from the engine to the exhaust treatment device;a sensor in communication with the exhaust conduit;a flow modifier positioned within the exhaust conduit proximate the sensor, the flow modifier including a plate having a first end and a second end that are fixed to opposing sides of the exhaust conduit to suspend the plate within the exhaust conduit, the plate including a convex surface extending across the exhaust conduit between the opposing sides, a majority of the convex surface being spaced apart from the conduit, the plate further including a leading edge and trailing edge with respect to a direction of exhaust gas flow as well as a plurality of tabs extending from the plate that direct the exhaust stream toward the sensor. 8. The exhaust gas treatment system of claim 7, wherein the plate is curved with a radius greater than an inside radius of the exhaust conduit. 9. The exhaust gas treatment system of claim 7, wherein the tabs are positioned between the leading and trailing edges. 10. The exhaust gas treatment system of claim 7, wherein the tabs are positioned adjacent to apertures extending through the plate. 11. The exhaust gas treatment system of claim 7, wherein the flow modifier is positioned upstream from the sensor. 12. The exhaust gas treatment system of claim 7, wherein the flow modifier is suspended on a same side of the exhaust conduit as the sensor. 13. The exhaust gas treatment system of claim 7, wherein the flow modifier is suspended on an opposing side of the exhaust conduit as the sensor. 14. The exhaust gas treatment system of claim 7, wherein the tabs are staggered over a face of the plate. 15. The exhaust gas treatment system of claim 7, wherein the plate terminates at first and second edges that extend parallel to one another and parallel to a longitudinal axis of the conduit.

이 특허에 인용된 특허 (36)

Stutzenberger Heinz (Vaihingen DEX), Arrangement for the aftertreatment of exhaust gases.
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Lane William H. (Chillicothe IL) Peterson Randy N. (Peoria IL) Smith Aaron L. (East Peoria IL) White Scott T. (East Peoria IL) Learned Daniel J. (Peoria IL), Combustion exhaust purification system and method.
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Oesterle, Joerg; Braun, Joachim, Device for introducing a liquid into a gas flow.
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Hager,Bernhard; Huber,Sven; Mueller,Gerhard; Offenhuber,Michael, Device for the post-treatment of exhaust gases of an internal combustion engine.
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Ito Hideki (Obu JPX) Baba Motohiro (Obu JPX) Takeuchi Hitoshi (Obu JPX) Makimura Toshiro (Obu JPX) Takagi Takaaki (Obu JPX), Electromagnetic fuel injector.
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Amou,Kiyoshi; Yamakado,Makoto; Kusumoto,Hiroshi; Nagano,Masami; Hamada,Ikuhisa; Mukai,Toshifumi; Yokota,Hiroshi, Engine exhaust gas treatment system and exhaust gas treatment process.
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Pettit William H. (Rochester NY), Exhaust burner catalyst preheater.
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Zheng, Guanyu; Zhang, Yongyue; Popovich, Jeremy D.; Yetken, Dervis A.; Kotrba, Adam J., Exhaust gas additive/treatment system and mixer for use therein.
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Hirota Shinya (Susono JPX) Araki Yasushi (Susono JPX) Kobashi Kiyoshi (Mishima JPX) Oda Tomohiro (Aichi JPX) Murakami Fumitada (Susono JPX), Exhaust gas purification device for an engine.
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Gaiser, Gerd, Exhaust system for an internal combustion engine.
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Amon, Bernd; Albert, Herbert, Exhaust-gas system having an injection nozzle.
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Wakeman Russell J. (Newport News VA), Fuel injector swirl passages.
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Thomas, Eric D., Gas/liquid mixing device for diesel exhaust aftertreatment.
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Park, Jong-Soo; Lee, Young-Jae; Yoon, Wang-Lai; Lee, Ho-Tae; Seo, Dong-Joo; Cho, Sung-Ho; Lee, Shin-Kun; Choi, Seung-Hoon; Yoo, Kyung-Seun, Heating device for exhaust gas in internal combustion engine.
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Harinath, Arvind V.; Blackwell, Bryan E.; Yonushonis, Thomas M., Increased reductant decomposition reactor robustness through the use of a hydrolytic catalyst coating.
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Happel Robert (Waiblingen-Bittenfeld DT) Maier Lothar (Fellbach ; DT), Injection valve.
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Brooks Mark A. (Sterling Heights MI) Fallis Robert (Milford MI) Daly Paul (Troy MI), Injector with swirl chamber return.
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Tilton Charles L. ; Tilton Donald E. ; Smetana Bruce A., Liquid fuel injection device with pressure-swirl atomizers.
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Hofmann, Lothar; Mathes, Wieland, Metering system.
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Martin, Scott M.; Thomas, Stephen M.; Chambers, Alison A.; Tarabulski, Theodore J.; Santangeli, P. Robert; Broderick, R. Gifford, Method and apparatus for injecting atomized fluids.
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Genderen, Mathijs Van, Method for determining catalyst cool down temperature.
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Winfried Dolling DE; Lothar Hofmann DE, Method for the catalytic conversion of nitrogen oxides contained in the exhaust gas of an internal combustion engine.
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Pace Jeffrey B. (Newport News VA) Warner Vernon R. (Wicomico VA) Nally ; Jr. John F. (Williamsburg VA), Multiple disk swirl atomizer for fuel injector.
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Itatsu, Ryuji, Nozzles suitable for use with fluid injectors.
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Peter-Hoblyn Jeremy D.,GBX ; Balles Eric N. ; Hofmann John E. ; Tarabulski Theodore J., Reducing NO.sub.x emissions from an engine by temperature-controlled urea injection for selective catalytic reduction.
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Tarabulski Theodore J., Reducing NO.sub.x emissions from an engine while maximizing fuel economy.
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Tarabulski Theodore J. ; Knapper Curtis J. ; Peter-Hoblyn Jeremy D.,GBX ; Valentine James M., Reducing no.sub.x emissions from an engine by temperature-controlled urea injection for selective catalytic reduction.
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Cheng,Shi Wai S., Reductant distributor for lean NOx trap.
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Liu, Z. Gerald; Clerc, Jim; Drost, Jason; Burke, Jim; Chiruta, Mihai; Munnannur, Achuth, Reductant injection and decomposition system.
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Hill, William E., Snap-action valve for exhaust system.
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Hill, William E., Snap-action valve for exhaust system.
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Hill, William E.; Macaluso, Howard C.; Clayton, Steven, Snap-action valve for exhaust system.
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Hill,William E., Snap-action valve for exhaust system.
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Tanasawa Yasusi (Nagoya JPX) Muto Norio (Aichi JPX) Saito Akinori (Nagoya JPX) Kawamura Kiyomi (Nagoya JPX), Spill type swirl injector.
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Baron, John Michael, Static mixer.
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Schneider, Gottlieb; Jaffer, Shaffiq, Vortex static mixer.
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