CN202732076U - Exhaust system thermal insulation shield applied to pressurizer engine - Google Patents

Abstract

The utility model relates to an exhaust system heat shield applied to a supercharger engine, comprising a heat shield body, the heat shield body adopts a three-layer structure as a whole, and the inner and outer layers are respectively an outer layer of an aluminum-plated steel plate and a The inner layer of the aluminized steel plate is an intermediate layer between the outer layer of the aluminized steel plate and the inner layer of the aluminized steel plate, and the intermediate layer is a ceramic fiber paper layer. The utility model has simple structure and reasonable design, can well block the heat emitted by the exhaust pipe, avoid damage to other devices, does not affect the NVH performance of the whole vehicle, improves the performance of the heat shield, and improves the quality.

Description

Exhaust system heat shield applied to supercharger engine

technical field

The utility model relates to an automobile part, in particular to an engine exhaust system heat shield, which is used for noise reduction and heat insulation of a turbocharger automobile engine exhaust manifold. the

Background technique

In today's automobile market, there are more and more models equipped with supercharged engines. Compared with ordinary naturally aspirated engines, supercharged engines have the advantages of stronger power and fuel economy, and the technology is more advanced. With the improvement of the technical level of the engine, the heat emitted by the engine exhaust system is also increasing, and the heat radiation effect on the surrounding components is increasing day by day. The whole vehicle is increasingly pursuing compactness and comfort, so heat insulation measures are essential. It is developed to reduce the heat radiation of the engine exhaust system and improve the durability and comfort of the vehicle. The existing heat shield is usually made of a layer of steel plate, which has poor heat insulation effect and cannot attenuate the radiation noise of the manifold. the

Contents of the invention

The purpose of this utility model is to overcome the deficiencies in the above-mentioned technologies, and provide a simple structure, reasonable design, which can effectively prevent the excessive heat radiation of the engine exhaust system from damaging the surrounding components, and has obvious heat insulation and noise reduction effects. Exhaust system heat shield for supercharged engines. In order to achieve the above purpose, the technical solution adopted by the utility model is: including the heat shield body, the heat shield body adopts a three-layer structure as a whole, and the inner and outer layers are respectively the outer layer of the aluminum-coated steel plate and the inner layer of the aluminum-coated steel plate. Between the outer layer of the aluminized steel plate and the inner layer of the aluminized steel plate is an intermediate layer, and the intermediate layer is a ceramic fiber paper layer. The utility model has the advantages of: 1. Simple structure and reasonable design, which can well block the heat emitted by the exhaust pipe and avoid damage to other devices; 2. Does not affect the NVH performance of the whole vehicle; 3. Improves the heat shield performance, improved quality. the

Description of drawings

Figure 1 is a schematic diagram of the structure of the utility model heat shield body;

Fig. 2 is a sectional view of the partial structure of the utility model. the

Detailed ways

Embodiments of the utility model are described in further detail below in conjunction with the accompanying drawings. As can be seen from Figures 1-2, the utility model includes a heat shield body 4, and the heat shield body adopts a three-layer structure as a whole, and the inner and outer layers are respectively an outer layer 1 of an aluminum-coated steel plate and an inner layer 3 of an aluminum-coated steel plate. Between the outer layer 1 of the aluminized steel plate and the inner layer 3 of the aluminized steel plate is an intermediate layer, and the intermediate layer is a ceramic fiber paper layer 2 . The surrounding of the heat shield body 4 adopts crimping, and the structure is partially searched. The main function of the utility model is to prevent excessive heat radiation of the exhaust system of the engine from causing damage to surrounding components. It adopts a structure similar to that of a sandwich, with two layers of aluminized steel plates inside and outside, and the middle layer is ceramic fiber paper. The structure design is reasonable and the heat insulation effect is good. The aluminum-plated steel plate on the outside of the sandwich structure can prevent water vapor, oil gas and other corrosive substances from damaging the heat shield body; the ceramic fiber paper in the middle can play the role of shock absorption and noise reduction, which is beneficial to the NVH of the whole vehicle; It is more conducive to the durability of the heat shield and the simple process to use the crimping around the heat shield, and then partially turn over the structure, and it can also protect the ceramic fiber paper from burning. the

Claims (2)

1. vent systems thermal shield that is applied to supercharged engine, comprise thermal shield body (4), it is characterized in that: the whole three-decker that adopts of described thermal shield body, inside and outside two-layer aludip skin (1) and the aludip internal layer (3) of being respectively, be the mesosphere between aludip outer (1) and aludip internal layer (3), the mesosphere is ceramic fiber ply of paper (2).

2. a kind of vent systems thermal shield that is applied to supercharged engine according to claim 1, it is characterized in that: described thermal shield body (4) adopts flanging on every side, and turn over all over structure the part.

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