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Detachable decomposition reactor with an integral mixer

A technology of decomposition reactor and reactor, applied in the direction of fluid mixer, mixer, separation method, etc., can solve problems such as welding deformation of poor heat retention

Active Publication Date: 2011-08-31
CUMMINS FILTRATION IP INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, conventional decomposition reactors have poor heat retention in the reactor and are formed with welding deformations, which lead to the formation of reducing agent deposits in the reactor

Method used

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  • Detachable decomposition reactor with an integral mixer
  • Detachable decomposition reactor with an integral mixer
  • Detachable decomposition reactor with an integral mixer

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Embodiment Construction

[0017] The invention will now be described in detail with reference to the accompanying drawings, which constitute a part hereof and which illustrate illustrative specific embodiments in which the invention can be practiced. These embodiments are described in enough detail to enable those skilled in the art to implement the claimed technical solution accordingly, and it should be understood that they do not deviate from the spirit of the present invention and do not exceed the scope of the claimed inventive solution. Other specific implementation manners may also be adopted under the premise.

[0018] Therefore, the following detailed description should not be construed as limiting the present invention.

[0019] Some embodiments presented herein are directed to a separable reductant decomposition reactor with integrated mixer placed in an SCR exhaust system. The reactor includes a reductant injector mount configured to effectively provide reductant into the SCR exhaust syste...

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Abstract

A reductant decomposition reactor for use in exhaust systems is provided that includes a middle tube portion formed with a reductant injector mount, an inlet tube, an outlet tube and a mixer. The inlet tube is formed at a first end of the middle tube portion and the outlet tube is formed at a second end of the middle tube portion and both are configured to create a sealed connection to different portions of the exhaust system. The mixer fits between the middle tube portion and the outlet tube and is configured to decompose the reductant in an exhaust stream. The injector mount comprises a tube like section that connects at a first end to the middle tube portion and at a second end to an injector port of the injector mount, and is configured to reduce recirculation flow patterns in the reactor, create a high velocity flow at an inner surface of the injector mount and thereby reduce the formation of reductant deposits.

Description

[0001] priority information [0002] The patent application for this invention was filed as a PCT international application in the name of Cummins Filtration IP Ltd. and requested a U.S. patent application entitled "Separable Decomposition Reactor with Integral Mixer" filed on October 16, 2009 Priority Interest No. 12 / 252689, the disclosure of which is incorporated herein by reference. technical field [0003] The present disclosure relates to the field of exhaust systems. In particular, the invention relates to a separable decomposition reactor with integral mixer for use in an exhaust system. Background technique [0004] A common problem associated with the use of internal combustion engines is the formation of harmful by-products that naturally occur in the exhaust system, in particular the formation of nitrogen oxide products. Aftertreatment systems, such as selective catalytic reaction (SCR) systems employ urea and reduction catalysts to reduce the level of nitrogen ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01N3/24F01N3/28B01D53/94F01N3/10
CPCF01N2610/1453F01N2260/20F01N2240/40F01N2260/10F01N13/16F01N2450/30B01F5/0616F01N3/2066B01F5/0473F01N13/141F01N2240/20B01F3/04049F01N2610/02B01F23/2132B01F25/3141B01F25/4315
Inventor J·德罗斯特D·布斯R·谢林A·芒那纳M·奇鲁塔
Owner CUMMINS FILTRATION IP INC
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