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Heat insulation protection structure of engine exhaust system

A technology of exhaust system and protective structure, applied in the direction of engine components, machines/engines, exhaust devices, etc., can solve the problems of gaps, unsightly appearance, bloated product design, etc., achieve strict protection and ensure water resistance Effect

Pending Publication Date: 2019-07-05
迪耐斯排气系统(常州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. In the existing technology, the splicing of the metal shell is not tight enough, and there are gaps, which cannot solve the waterproof problem of the exhaust system;
[0005] 2. The simple heat insulation material wrapping results in a bloated design of the product and an unattractive appearance

Method used

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  • Heat insulation protection structure of engine exhaust system
  • Heat insulation protection structure of engine exhaust system
  • Heat insulation protection structure of engine exhaust system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] refer to Figure 1 to Figure 4 , an engine exhaust system heat insulation protection structure, comprising a first heat shield 1 and a second heat shield 2 .

[0044] Specifically, the shape of the first heat shield 1 and the shape of the second heat shield 2 are adapted to the shape of the outer surface 5 of the exhaust system, so as to facilitate covering on the outer surface 5 of the exhaust system. The first heat shield 1 and the second heat shield 2 are co-wrapped and fixed on the outer surface 5 of the exhaust system.

[0045] Among them, such as figure 2 with image 3 , the first heat shield 1 includes a first shield 11 and a first heat insulation layer 12 fixed inside the first shield 11 by gluing. The first protective cover 11 is fully welded and fixed to the outer surface 5 of the exhaust system to ensure tightness and play a waterproof role. The material of the first heat insulating layer 12 is other heat insulating materials such as ceramic fiber, glass...

Embodiment 2

[0053] Such as Figure 5 to Figure 7 As shown, the engine exhaust system heat insulation protection structure of this embodiment is basically the same as that of Embodiment 1, except that the structure of the lug structure 3 is different.

[0054] In this example, if Image 6 with Figure 7 , the lug structure 3 includes a first upright edge 31 arranged on the edge of the first protective cover 11 and a straight flange 33 arranged on the edge of the second protective cover 21, the first upright edge 31 Set opposite to the straight flange 33 .

[0055] The overall length of the straight flange 33 is greater than the overall length of the first vertical edge 31, the straight flange 33 closely fits the first vertical edge 31, and the outer end of the straight flange 33 is bent to form a second clamping The portion 331 wraps the first upright edge 31 , and the first upright edge 31 and the straight flange 33 are fully welded and fixed.

[0056] Such as Image 6 with Figure ...

Embodiment 3

[0059] Such as Figure 8 As shown, the engine exhaust system heat insulation protection structure of this embodiment is basically the same as that of Embodiment 1, except that the structure of the lug structure 3 is different.

[0060] In this embodiment, the lug structure 3 includes a folded edge 34 arranged on the edge of the first protective cover 11 and a double folded edge 35 arranged on the edge of the second protective cover 21, and the double folded edge 35 is arranged on the edge of the second protective cover 21. The folded edge 35 is opposite to the folded edge 34 .

[0061] The folded edge 34 is formed by bending a flange of the first protective cover 11 at a side close to the first protective cover 11 by 90°, and the folded edge 34 includes a flanged portion connected to the first protective cover 11 342 and the flanging portion 341 connected to the flanging portion 342.

[0062] The double folded edge 35 is formed by bending twice a flange of the second protect...

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Abstract

The invention discloses a heat insulation protection structure of an engine exhaust system. The structure comprises a first heat insulation cover and a second heat insulation cover, wherein the shapeof the first heat insulation cover and the shape of the second heat insulation cover are both matched with the shape of the outer surface of the exhaust system, and the first heat insulation cover andthe second heat insulation cover are both wrapped around and fixed on the outer surface of the exhaust system in a matched mode; the first heat insulation cover comprises a first protection cover anda first heat insulation layer fixed on the inner side of the first protection cover, and the first protection cover is fixed on the outer surface of the exhaust system in a full-length welding mode;the second heat insulation cover comprises a second protection cover and a second heat insulation layer fixed on the inner side of the second protection cover, and the second protection cover is fixedon the outer surface of the exhaust system in a full-length welding mode; and the edge of the first protection cover is fixedly connected with the edge of the second protection cover through a convexlug structure. According to the structure, the structure is tight, the waterproof performance is good, the heat insulation performance is good, and the appearance quality is good.

Description

technical field [0001] The invention belongs to the field of engine exhaust systems, and in particular relates to an engine exhaust system heat insulation protection structure. Background technique [0002] At present, in the field of engine exhaust system, in order to keep the temperature inside the exhaust system within the temperature range suitable for the catalytic converter, and at the same time control the external temperature of the exhaust system within a safe range, it is necessary to isolate the whole or part of the exhaust system. heat protection. [0003] The common ones are glass fiber winding method, heat insulation layer wrapping method, heat insulation material plus metal shell double-layer structure method, etc. These methods are all trying to add an extra heat insulation layer to the exhaust system to achieve heat insulation and security purposes. However, these solutions have the following disadvantages. [0004] 1. In the existing technology, the spli...

Claims

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Application Information

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IPC IPC(8): F01N13/14F01N13/18F01N13/16
CPCF01N13/14F01N13/1888F01N13/16
Inventor 托班斯塔蒂尼森
Owner 迪耐斯排气系统(常州)有限公司
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