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Catalytic Converter

A catalytic converter and carrier technology, applied in the field of catalytic converters, can solve problems such as displacement, affecting purification efficiency, and carrier crushing, and achieve the effect of preventing edges

Inactive Publication Date: 2017-06-23
SHANGHAI TENNECO EXHAUST SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The traditional carrier is equal in diameter along the axial direction. The carrier of this structure is easy to move and shift in the housing when the car is running, which affects the purification efficiency.
Once it hits the end cone during the movement, it is easy to squeeze the carrier

Method used

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  • Catalytic Converter

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Embodiment Construction

[0013] Please refer to figure 1 As shown, the present invention discloses a catalytic converter 100 for after-treatment of automobile exhaust. The catalytic converter 100 includes a casing 1 extending axially, a carrier 2 accommodated in the casing 1 , and a liner 3 clamped between the casing 1 and the carrier 2 . The junction of the liner 3 and the carrier 2 forms a junction surface 31 . The carrier 2 includes a first portion 21 and a second portion 22 having a smaller diameter than the first portion 21 , so as to form a step 23 at the junction of the first portion 21 and the second portion 22 . The step 23 is included in the air intake direction (see figure 1 Arrow direction on the left side) is located upstream of the joint surface 31 and blocks the stop surface 231 of the joint surface 31 . The coupling surface 31 extends along the axial direction, and the blocking surface 231 extends along a vertical direction perpendicular to the axial direction.

[0014] The first p...

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PUM

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Abstract

The invention discloses a catalyst device which comprises a shell extending in the axial direction, a carrier accommodated in the shell and a liner clamped between the shell and the carrier, wherein a combination surface is formed at a combination part of the liner and the carrier; the carrier comprises a first part and a second part smaller than the first part in diameter, so that a step is formed at an intersection of the first part and the second part and comprises a blocking surface which is positioned on the combination surface in the upstream of the gas feeding direction and blocks the combination surface. Therefore, gas can be effectively prevented from corroding the edge of the liner.

Description

technical field [0001] The invention relates to a catalytic converter, which belongs to the technical field of automobile exhaust aftertreatment. Background technique [0002] The traditional carrier is equal in diameter along the axial direction, and the carrier of this structure is easy to move and shift in the housing when the car is running, thus affecting the purification efficiency. Once it hits the end cone during the movement, it is easy to crush the carrier. [0003] Therefore, it is necessary to provide a new solution to solve the above technical problems. Contents of the invention [0004] The object of the present invention is to provide a catalytic converter capable of effectively preventing gas from corroding the edge of the liner. [0005] In order to achieve the above object, the present invention adopts the following technical solution: a catalytic converter, which includes a casing extending in the axial direction, a carrier accommodated in the casing, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01N3/28
Inventor 游洪亮林绳缤
Owner SHANGHAI TENNECO EXHAUST SYST