Exhaust Gas Passage With Aftertreatment System

A technology of exhaust post-treatment and exhaust flow, which is applied in the direction of electronic control of exhaust treatment devices, exhaust devices, exhaust treatment, etc., can solve the problem that the maximum temperature cannot be exceeded, and achieve the effect of ensuring rapid response behavior

Active Publication Date: 2016-11-02
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The higher the temperature of the LNT, the more efficient the desulfurization treatment, but it cannot exceed the maximum allowable temperature

Method used

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  • Exhaust Gas Passage With Aftertreatment System
  • Exhaust Gas Passage With Aftertreatment System
  • Exhaust Gas Passage With Aftertreatment System

Examples

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Embodiment Construction

[0055] The following description relates to systems and methods for improving exhaust flow from an outlet of an exhaust turbine to an exhaust aftertreatment device via the turbine outlet cone. like figure 2 A longitudinal section of an exemplary engine system including a turbine outlet cone with adjustable swirl vanes is shown. The engine controller may be configured to execute control programs such as image 3 An example procedure in , to adjust the position (orientation) of the swirl vanes to optimize exhaust flow to the aftertreatment device based on changes in engine operating conditions.

[0056] figure 1 Aspects of an example engine system 100 including an engine 10 are schematically shown. In the illustrated embodiment, the engine 10 is a booster engine connected to a turbocharger 13 including a compressor 114 driven by a turbine 116 . Specifically, fresh air is introduced into engine 10 along intake passage 42 via air cleaner 112 and flows to compressor 114 . The...

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Abstract

Methods and systems are provided for adjusting flow of exhaust gas from downstream of an exhaust turbine outlet to an exhaust gas aftertreatment device inlet via a compact turbine outlet cone with adjustable swirl vanes. Exhaust flow reaching the exhaust gas aftertreatment device is adjusted based on a desired exhaust gas temperature and exhaust gas flow rate at the aftertreatment device. During cold start conditions, the swirl vanes may be closed to concentrate exhaust gas flowing towards a portion of the aftertreatment device while after attainment of aftertreatment device light-off temperature, the position of the swirl vanes may be adjusted to introduce turbulence and homogeneity to exhaust flow reaching the exhaust aftertreatment device.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS [0002] This application claims priority to German Patent Application No. 102015207573.7 filed on April 24, 2015, the entire content of which is incorporated herein by reference. technical field [0003] The present description generally relates to a system and method for a turbine outlet cone with adjustable swirling vanes that achieves a homogeneous flow distribution of exhaust gas flow upstream of an exhaust gas aftertreatment device. Background technique [0004] The disclosure relates to an internal combustion engine having an intake system for feeding in charge air, an exhaust gas discharge system for discharging exhaust gas, and at least one combined exhaust gas aftertreatment system, the exhaust gas aftertreatment system being arranged In the exhaust gas discharge system and with an intake housing for feeding in the exhaust gas. [0005] In the context of the present disclosure, the expression "internal combustion engi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01N9/00F01N3/28F02B37/00
CPCF01N3/28F01N9/00F02B37/00F01N2430/04F01N3/0235F02B37/22F01N3/2006F02B37/18Y02T10/12
Inventor J·克默林F·A·萨默候夫A·库斯克H·M·金德尔V·斯米利亚诺夫斯基F·J·布林克曼
Owner FORD GLOBAL TECH LLC
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