A high-efficiency thermal insulation exhaust manifold

Abstract

The purpose of the present invention is to provide a high-efficiency thermal insulation exhaust manifold to solve the problems in the prior art. The shell and the insulation block arranged on the outside of the installation shell, the outer surface of the installation shell is radially extended by installation columns, and the installation columns are arranged at linear intervals along the axis of the manifold section and are evenly distributed around the axis of the manifold section There are a plurality of circular arrays, the insulation block is plugged into the installation column and the insulation block in the same circumferential plane surrounds the outside of the installation shell, and the insulation block includes a The thermal insulation part, the heat storage part and the heat dissipation part are arranged in sequence laterally outward. Through the high-efficiency thermal insulation exhaust manifold, the heat in the exhaust manifold can be isolated and gradually dissipated, thereby having a good thermal insulation effect and a long-term stable temperature effect.

Description

technical field [0001] The invention relates to the technical field of vehicle exhaust system components, in particular to an exhaust manifold with high heat preservation and heat insulation. Background technique [0002] The exhaust manifold is used to discharge the exhaust gas generated by combustion in the engine to the three-way catalytic converter and muffler section downstream of the exhaust system. Because the exhaust manifold is directly connected to the downstream direction of the engine, the temperature of the exhaust gas generated by combustion is extremely high when it enters the exhaust manifold. In order to prevent the exhaust manifold from damaging the surrounding components, it is necessary to install insulation materials around the exhaust manifold As a result, its temperature radiates to the parts of the engine compartment and chassis causing their damage. However, the general exhaust manifold insulation device can only play a role of heat insulation, so t...

AI Technical Summary

Problems solved by technology

Because the exhaust manifold is directly connected to the downstream direction of the engine, the temperature of the exhaust gas generated by combustion is extremely high when it enters the exhaust manifold. In order to prevent the exhaust manifold from damaging the surrounding components, it is necessary to install insulation materials around the exhaust manifold As a result, its temperature radiates to the components of the engine compartment and chassis causing their damage

However, the general exhaust manifold insulation device can only play a role of heat insulation, so that a large amount of heat is accumulated on the exhaust manifold, which in turn causes the exhaust manifold itself to be overheated, resulting in problems such as mechanical performance degradation, thermal deformation, and shortened life. At the same time, especially after the vehicle runs at high speed for a long time, the heat after a large amount of accumulated heat will still be dissipated through the heat insulation layer, resulting in the failure of the heat preservation effect

Images