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Corrugated connecting pipe device for lowering exhaust emission of automobile

A technology for corrugated connecting pipes and automobile exhaust, which can be used in exhaust devices, noise reduction devices, exhaust treatment, etc., and can solve problems such as short service life

Inactive Publication Date: 2013-05-01
无锡市锡山环宇金属软管有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the current processing device has the disadvantage of short service life

Method used

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  • Corrugated connecting pipe device for lowering exhaust emission of automobile

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Embodiment Construction

[0013] refer to figure 1 According to the present invention, the corrugated connecting pipe device for reducing automobile exhaust emissions includes a casing, a three-way catalytic converter and an elastic component arranged in the casing. The housing includes an air inlet end cover 1 , an air outlet end cover 2 and a corrugated hose 3 , and the housing also includes a protective body 4 located between the air inlet end cover and the air outlet end cover. A gas buffer combustion disc 5 of porous ceramics is arranged in the air intake end cover, and the gas buffer combustion disc 5 enables exhaust gas to be fully combusted again, reducing exhaust gas emissions and reducing the workload of the three-way catalytic converter. The axial end faces of the air inlet end cover 1 and the air outlet end cover 2 are provided with annular shoulders 6, and the annular shoulders 6 are mainly used for assembling corrugated hoses and elastic parts, so that the corrugated hoses and elastic par...

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Abstract

The invention relates to a corrugated connecting pipe device for lowering the exhaust emission of an automobile. The two ends of a protecting body are connected with an air inlet end cover and an air outlet end cover respectively; the axial end faces of the air inlet end cover and the air outlet end cover are provided with annular convex shoulders; connecting pipes are arranged in the air inlet end cover and the air outlet end cover; a corrugated hose is positioned in the protecting body; the two ends of the corrugated hose are connected with the axial end faces of the annular convex shoulder of the air inlet end cover and the annular convex shoulder of the air outlet end cover; an elastic component is positioned in the corrugated hose; the two ends of the elastic component are connected with the outer circumferential walls of the annular convex shoulder of the air inlet end cover and the annular convex shoulder of the air outlet end cover; one end of a three-way catalytic converter is fixedly connected with the inner circumferential wall face of the connecting pipe in the air inlet end cover; and the other end of the three-way catalytic converter is in sliding fit in the connecting pipe in the air outlet end cover. According to the corrugated connecting pipe device, the corrugated hose is prevented from being damaged in a tightened state, and the corrugated hose is prevented from being interfered with other components during working.

Description

technical field [0001] The invention relates to a corrugated connecting pipe device for reducing exhaust emission of automobiles. Background technique [0002] The purification of the exhaust gas of automobiles and motorcycles powered by gasoline engines usually adopts a three-way catalytic converter installed in the exhaust pipe. Its basic structure is a porous core body through which the exhaust gas can pass smoothly. A three-way catalyst composed of three precious metals, rhodium, and rhodium, the porous core is the catalyst three-way catalyst. When the exhaust gas passes through the catalyst three-way catalyst, it contacts with the three-way catalyst, and harmful gases such as carbon monoxide, hydrocarbons, nitrogen oxides, etc., form harmless gases under the catalytic action of the three-way catalyst, reaching the allowable emission standard. In the early stage of the development of the three-way catalytic converter, the core body is generally based on honeycomb cerami...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01N13/08F01N3/28
CPCF01N3/101F01N3/2839F01N3/2875F01N3/2892F01N13/1816F01N2240/20F01N2260/10F01N2260/14F01N2350/00Y02A50/20Y02T10/12
Inventor 陈炳泉
Owner 无锡市锡山环宇金属软管有限公司
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