Curved sheet spoiler metal honeycomb carrier

Abstract

The invention discloses a metal honeycomb carrier of an arc-shaped sheet spoiler type, which solves the problem that the existing honeycomb carrier has a relatively poor catalytic effect on flue gas of an internal combustion engine. The structure includes a stacked body and a cylindrical shell, the stacked body is plugged into the shell, and several flat sheets and curved foil strips stacked together are wound into a cylinder from the middle position to form the stacked body, a number of crests and troughs arranged side by side are formed on the foil strip, and the crests and troughs are interlaced and connected to each other. Airflow channels are formed inside the crests and troughs. The crests and troughs are respectively Constitute a part of the wall body of the airflow channel corresponding to each other, and the flat sheet constitutes the other part of the wall body of the airflow channel. There are several protruding arc-shaped sheets on the foil strip. The outer edge of the arc-shaped sheet is arc-shaped, and the arc-shaped sheet It protrudes into the intercepting surface of the airflow channel and is accommodated in the airflow channel. The angle between the arc-shaped sheet and the length direction of the airflow channel is between 0-40 degrees.

Description

technical field [0001] The invention relates to the technical field of metal honeycomb carriers on automobiles and motorcycles, in particular to a metal honeycomb carrier with an arc-shaped slice type spoiler structure. Background technique [0002] With the further implementation of the Euro V standard for motorcycle exhaust emissions, the motorcycle exhaust emission standards are getting higher and higher, especially the technical requirements for hydrocarbon emissions have become more stringent. It is difficult for catalysts made of conventional carriers to meet the existing standards. emission requirements. Conventional carriers used in existing motorcycle exhaust pipes are formed by rolling several layers of stacked flat sheets and corrugated sheet foils. The carrier is impregnated with a catalyst on the surface of the foil, and the flue gas after combustion of the internal combustion engine will contact the catalyst on the surface of the foil when it flows through the...

AI Technical Summary

Problems solved by technology

A number of separate airflow channels are formed in the carrier. When the gas flows through the carrier, the gas will directly pass through the airflow channel. The gas in the middle of the airflow channel is difficult to contact with the catalyst on the wall of the airflow channel. Insufficient contact with the wall of the airflow channel, resulting in relatively poor catalytic effect

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