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Multiple-layer mat and exhaust gas treatment device

A weight, average diameter technology for use in multilayer mats and exhaust gas treatment devices

Inactive Publication Date: 2014-11-05
UNIFRAX I LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, mounting mats containing only high diameter non-breathable fibers have undesirably high thermal conductivity

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] Hybrid mats may include multi-layer mounting mats for exhaust treatment devices. A multilayer mounting mat may comprise: a first layer of biosoluble inorganic fibers and a separate and distinct layer of inorganic fibers having a different chemical composition than the first layer of biosoluble inorganic fibers.

[0020] A multi-layer mounting mat may include: a first separate and unique layer of biosoluble inorganic fibers and a second separate and unique layer of inorganic fibers, the second layer of inorganic fibers having the same chemical composition as the first layer of biological The soluble inorganic fibers are different so that they are in adjacent contact to form a multilayer mat. A multi-layer mounting mat may include: a first separate and unique layer of biosoluble inorganic fibers and a second separate and unique layer of inorganic fibers, the second layer of inorganic fibers having the same chemical composition as the first layer of biological The soluble...

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Abstract

A hybrid mounting mat for mounting a catalyst support structure within a housing in an exhaust gas treatment device. The exhaust gas treatment device includes an outer housing, a fragile catalyst support structure, and a mounting mat disposed in the gap between the housing and the fragile catalyst support structure. Additionally disclosed are methods of making the hybrid mounting mat and for making an exhaust gas treatment device incorporating the mounting mat.

Description

[0001] This application is a divisional application of an invention patent application. The application date of the parent application is September 24, 2010, the application number is 2010800422732, and the invention name is "multi-layer mat and exhaust gas treatment device". technical field [0002] Disclosed are mats for exhaust gas treatment devices, such as mats for catalytic converters and diesel traps used in automotive exhaust systems. The mat may be used as a mounting mat for mounting a brittle monolith within the housing of an exhaust treatment device, or as a thermal insulator in the end cone of an exhaust treatment device. Background technique [0003] In order to reduce the pollution of the atmosphere by engine exhaust, exhaust gas treatment devices are used on automobiles. Examples of widely used exhaust gas treatment devices include catalytic converters and diesel particulate collectors. [0004] A catalytic converter for treating exhaust gas from an automobil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B5/26B32B9/04F01N3/28F01N3/021F01N13/14
CPCD21H13/36D04H1/4209D04H1/542D21H27/38B32B19/06D04H1/4218B32B17/02D04H1/587F01N3/2857B32B5/26B32B5/022B32B5/08B32B5/22B32B9/005B32B9/047B32B15/14B32B1/08B32B3/12B32B2260/021B32B2260/046B32B2262/10B32B2262/101B32B2262/14B32B2307/304B32B2307/306B32B2307/50B32B2307/716B32B2307/72B32B2307/7242B32B2597/00B32B2605/00Y10T428/249921
Inventor A.库马
Owner UNIFRAX I LLC
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