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Snapper valve for hot end systems with burners

A burner and fuel technology, applied in combustion engines, machines/engines, internal combustion piston engines, etc., can solve the unacceptable problems of cost, weight and packaging

Inactive Publication Date: 2015-06-24
TENNECO AUTOMOTIVE OPERATING CO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While it is possible to increase the size of the combustor to increase exhaust mass flow, the cost, weight and packaging issues associated with this solution may not be acceptable

Method used

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  • Snapper valve for hot end systems with burners
  • Snapper valve for hot end systems with burners
  • Snapper valve for hot end systems with burners

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0018] Exemplary embodiments will now be described more fully with reference to the accompanying drawings.

[0019] figure 1 A diesel exhaust aftertreatment system 10 is shown for treating exhaust output by an engine 12 to a main exhaust passage 14 . An intake passage 16 is joined to the engine 12 to provide combustion gases to the engine. The turbocharger 18 includes a driven member 20 positioned in the flow of exhaust gas flowing through the main exhaust passage 14 and a drive member 22 positioned within the intake passage 16 and communicating with the intake air. During engine operation, exhaust gas flow causes driven member 20 to rotate. As the drive member 22 is mounted for rotation with the driven member 20 , intake air is compressed within the intake passage 16 prior to entering the engine 12 .

[0020] The exhaust aftertreatment system 10 also includes a valve and combustor arrangement 26 positioned downstream of the turbocharger 18 and upstream of the plurality of ...

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PUM

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Abstract

A system for controlling the temperature of an exhaust stream includes a main exhaust passageway adapted to receive the exhaust stream from an engine. A bypass passage includes an inlet and an outlet in communication with the main exhaust passageway. The outlet is located downstream from the inlet. A burner is positioned within the bypass passage for treating the exhaust passing through the bypass passage. A valve is positioned within the main exhaust passageway downstream from the inlet and upstream from the outlet. The valve is operable to vary the exhaust flow through the burner. A controller selectively operates the burner to maintain a desired exhaust temperature downstream of the outlet.

Description

technical field [0001] The present disclosure generally relates to a system for treating exhaust gas. More specifically, a flow diverter and combustor arrangement for increasing exhaust temperature is disclosed. Background technique [0002] In an attempt to reduce NO emissions to the atmosphere during the operation of internal combustion engines x and the amount of particulate matter, various exhaust aftertreatment devices have been developed. The need for exhaust gas aftertreatment systems arises especially when carrying out combustion processes in diesel engines. A typical aftertreatment system for diesel engine exhaust may include one of a diesel particulate filter (DPF), a selective catalytic reduction (SCR) system, hydrocarbon (HC) injectors, and a diesel oxidation catalyst (DOC) or more. [0003] During engine operation, the DPF captures soot emitted by the engine and reduces particulate matter (PM) emissions. Over time, the DPF becomes full and starts to clog. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01N3/08F01N3/28F01N3/035B01D53/94F01N3/30
CPCF01N3/0238F01N3/025F01N3/103F01N3/2033F01N3/2066F01N9/00F01N9/002F01N13/009F01N2240/14F01N2240/36F01N2410/00F01N2900/1404Y02T10/12Y02T10/40
Inventor 阿达姆·J·科特尔巴郑贯宇迈克·戈林加布里埃尔·萨兰察
Owner TENNECO AUTOMOTIVE OPERATING CO INC