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Exhaust treatment system and method of assembly

A technology for exhaust treatment and exhaust system, applied in exhaust devices, chemical instruments and methods, mufflers, etc., and can solve problems such as damage, misalignment of pads, etc.

Inactive Publication Date: 2013-05-01
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the process can be effective for the assembly of exhaust treatment systems, the stuffing piles can sometimes misalign or damage the pads, causing durability issues during operation of the internal combustion engine

Method used

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  • Exhaust treatment system and method of assembly
  • Exhaust treatment system and method of assembly
  • Exhaust treatment system and method of assembly

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Embodiment Construction

[0017] The following description is merely exemplary in nature and is not intended to limit the invention, its application, or uses. It should be understood that throughout the drawings, like reference numerals indicate like or corresponding parts and features.

[0018] now refer to figure 1 , the exemplary embodiment relates to an exhaust system 10 for reducing a controlled exhaust gas composition of an internal combustion engine 12 . It should be appreciated that the internal combustion engine 12 may be one of a variety of configurations and types, such as gasoline or diesel, in-line or V-configuration. For ease of description and discussion, the present invention will be discussed using an inline four-cylinder gasoline engine as shown. Internal combustion engine 12 includes a cylinder block 14 that is typically constructed of cast iron or a lightweight alloy such as aluminum. The lower end of the cylinder block 14 is closed by an oil pan 16 , while the upper end is clos...

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PUM

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Abstract

An exhaust treatment system for an internal combustion engine comprises an insulating and cushioning mat material disposed in the exhaust treatment system and a film laminate sleeve vacuum packed and sealing the insulating and cushioning mat material therein.

Description

[0001] Cross References to Related Applications [0002] The present application claims priority to US Provisional Patent Application No. 61 / 379,538, filed September 2, 2010, which is hereby incorporated by reference in its entirety. technical field [0003] Exemplary embodiments of the present invention relate to exhaust systems for internal combustion engines, and more particularly to exhaust treatment systems and methods of assembly. Background technique [0004] A typical exhaust system for an internal combustion engine may involve arranging an exhaust treatment system or component, typically an oxidation catalyst, in close proximity to the exhaust manifold of the internal combustion engine. Such exhaust gas treatment systems (called close-coupled exhaust gas treatment systems in this case) are typical catalytic devices in which controlled exhaust gas components (such as CO, HC, NO x , particles, etc.) can be converted into uncontrolled compounds (such as CO 2 、H 2 O,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01N3/24B01J23/38B01J35/02B01J35/00
CPCF01N3/2853B23P2700/03F01N3/2839Y10T29/49826
Inventor R.L.约翰逊
Owner GM GLOBAL TECH OPERATIONS LLC