Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Mixing assembly for aftertreatment unit of vehicle exhaust system

A technology for mixing components and exhaust systems, which is applied in exhaust treatment, mixers, exhaust devices, etc., can solve the problems of increasing the weight of mixing components, easily accumulating deposits, and requiring multiple punching and stamping processes.

Pending Publication Date: 2022-03-29
FAURECIA INDIA PTE LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The transition between the scroll member and the bowl is prone to deposit accumulation and can lead to premature failure of mixing components, significantly reducing the efficiency of the exhaust system
[0005] Furthermore, the bowl and scroll components can be manufactured by a casting process which is uneconomical and adds significantly to the weight of the mixing assembly
The bowl in the mixing assembly has a deep bowl shape requiring an expensive multi-strike stamping process

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Mixing assembly for aftertreatment unit of vehicle exhaust system
  • Mixing assembly for aftertreatment unit of vehicle exhaust system
  • Mixing assembly for aftertreatment unit of vehicle exhaust system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] Embodiments illustrating the features of the present invention will now be described in detail. The words "comprises," "has," "comprises," and "comprises," as well as their other forms, are synonymous and open-ended since one or more items following any of these words do not imply This is an exhaustive list of one or more such items, or is intended to be limited to one or more of the items listed.

[0022] The terms "first", "second", etc. do not indicate any order, quantity or importance herein, but are used to distinguish one element from another element, and the term "a" here does not express a limitation on quantity, but Yes indicates that at least one of the referenced items exists.

[0023] The disclosed embodiments are merely examples of the invention, which may be embodied in various forms.

[0024] The invention relates to a mixing assembly for an aftertreatment unit arranged inside the exhaust system of a vehicle. Preferably, the aftertreatment unit of the ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A mixing assembly (100) for an after-treatment unit of a vehicle exhaust system is provided. The mixing assembly (100) includes a scroll member (200) and a bowl (300). The scroll member (200) has a doser opening (150) on the top surface for a reductant fluid, such as urea, to enter. The scroll member (200) has a frustoconical portion (210) and a cylindrical portion (220). A bowl (300) extends from a bottom surface of the cylindrical portion (220). The frustoconical portion (210) and the cylindrical portion (220) of the scroll member (200) are stamped together or formed from a single sheet metal stamping process. The mixing assembly (100) of the present invention can significantly reduce deposits accumulated in the transition between the vortex member (200) and the bowl (300).

Description

technical field [0001] The invention relates to an exhaust system for an internal combustion engine. More specifically, the present invention relates to a mixing assembly for an aftertreatment unit of a vehicle exhaust system. Background technique [0002] The engine exhaust system directs the exhaust gases from the engine and discharges them into the environment. When discharged into the environment, the system provides noise attenuation and exhaust aftertreatment to prevent environmental pollution. Furthermore, the flow distribution of the exhaust gas plays a crucial role in the aftertreatment of the exhaust gas in order to prevent the discharge of toxic substances into the environment. A typical exhaust system may include an inlet pipe, an aftertreatment unit and an outlet. [0003] The aftertreatment unit may include a diesel oxidation catalyst (DOC), a diesel particulate filter (DPF), and a selective catalytic reduction (SCR) system. SCR technology has been used to ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F01N13/00F01N3/28
CPCF01N13/00F01N3/2882F01N2610/02F01N2610/14B01F23/213B01F25/32F01N3/2892F01N2240/20Y02A50/20B01D53/9431B01D2251/2067B01D53/90F01N3/2066B01F2215/0431F01N2610/1453B01F23/2132B01F25/10
Inventor 兰达尔·克维尔巴埃迪尤阿多·阿拉诺阿米·布哈特阿玛雷什·拉卡萨吉安松伊·伯内特
Owner FAURECIA INDIA PTE LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com