CN201502428U - Engine exhaust manifold device - Google Patents

Abstract

The utility model relates to an engine exhaust manifold device, which comprises an air inlet flange, an exhaust pipe, upper and lower housings of the exhaust pipe, another exhaust pipe, a collect pipe and an air outlet flange. A first air flue port, a second air flue port, a third air flue port and a fourth air flue port are formed on the air inlet flange; the air inlet end of the exhaust pipe is butted with the first air flue port, and the air outlet end thereof is connected with the air flue collect pipe; the upper and lower housings of the exhaust pipe are welded and then are connected to the second air flue port and the third air flue port of the air inlet flange, and the outlet end of the exhaust pipe is connected to the air flue collect pipe; the air inlet end of the exhaust pipe is butted with the fourth air flue port of the air inlet flange, and the exhaust end thereof is connected to the air flue collect pipe; and the rear end of the air flue collect pipe is connected with an exhaust flange. The engine exhaust manifold device has the advantages of compact structure, reasonable design, low cost, safe and reliable use, convenient operation and use, convenient installation and disassembly, light weight, small thermal capacity and less absorption heat, and ensures that the catalyst can quickly get burnt, thereby reducing the content of the emission pollutants and meeting the environmental protection requirements.

Description

engine exhaust manifold

technical field

The utility model relates to a small-displacement automobile engine exhaust manifold device.

Background technique

At present, engine exhaust manifolds are mostly castings, with complex molds, thick walls, heavy weight, large heat capacity, and high heat absorption. When the car body is cold started at low temperature, the heat loss of the exhaust gas discharged from the engine block is relatively large. It is difficult for the three-way catalyst to reach the temperature of the catalytic reaction within the first 40 seconds of data collection, resulting in excessive emission of pollutants.

Contents of the invention

The purpose of the utility model is to overcome the disadvantages of the above-mentioned technologies, and provide an engine exhaust manifold device with compact structure, reasonable design, low cost, safety and reliability, and reduced overall weight.

In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: including the intake flange, the exhaust pipe, the upper and lower shells of the exhaust pipe, the exhaust pipe, the summarizing pipe, the outlet flange, and the air inlet flange respectively There are first airway opening, second airway opening, third airway opening, and fourth airway opening. The air inlet end of the exhaust pipe is connected to the first airway opening, and the air outlet end is connected to the airway collection pipe. , After the lower shell group is welded, it connects with the second air port and the third air port of the intake flange, and its outlet end is connected to the air channel collection pipe, and the intake port of the exhaust pipe is connected with the intake flange. The mouth of the fourth airway is connected, its exhaust end is connected to the airway collecting pipe, and the rear end of the airway collecting pipe is connected to the exhaust flange.

The utility model has the advantages of:

Compact structure, reasonable design, low cost, safe and reliable, easy to operate, easy to install and disassemble, small in weight, small in heat capacity, and less in heat absorption, so that the catalyst can quickly ignite and reduce the content of pollutants emitted, meeting environmental protection requirements.

Description of drawings

Fig. 1 is a structural representation of the utility model;

Figure 2 is a schematic diagram of the direction A of Figure 1;

FIG. 3 is a schematic view taken along direction B of FIG. 2 .

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 1-3, the utility model includes an intake flange 1, an exhaust pipe 2, an upper and lower shell of the exhaust pipe 3, an exhaust pipe 4, a summing pipe 5, an air outlet flange 6, and an air intake flange The disk 1 is respectively provided with a first air passage opening 19, a second air passage opening 20, a third air passage opening 21, and a fourth air passage opening 22. The channel summarizing pipe 5 is connected, and the upper and lower casings of the exhaust pipe are welded in 3 groups and connected with the second air port 20 and the third air port 21 of the intake flange 1, and the outlet end is connected to the air channel summarizing Pipe 5, the air intake port of exhaust pipe 4 is connected with the fourth air passage port 22 of the intake flange 1, and its exhaust end is connected to the air passage collection pipe 5, and the rear end of the air passage collection pipe 5 is connected to the exhaust method. The blue plate 6 is connected.

A support one 7, a support two 8 and a support three 9 are installed on the exhaust pipe 2 respectively.

Exhaust pipe 4 is equipped with support four 10, support five 11.

The utility model consists of an inlet flange 1, an outlet flange 6, a rear flange mounting hole 19, an exhaust pipe 2, an exhaust pipe upper and lower shell assembly 3, an exhaust pipe 4, and a collection pipe upper and lower shell assembly 5 , support one 7, support two 8, support three 9, support four 10, support five 11, projection welding nut 12, gasket 13, described support one 7, support two 8, support three 9, support four 10, support Five 11 are respectively connected with projection welding nuts 12, the exhaust pipe upper and lower casing assembly 3 is composed of the exhaust pipe upper casing 14 and the exhaust pipe lower casing 15, the upper and lower casing assembly 5 of the collecting pipe is composed of the The lower shell 17 is composed of the middle part of the front view, the exhaust pipe 2, the exhaust pipe 4, and the upper and lower shell components 3 of the exhaust pipe. Component 5 is connected, the upper and lower shell components 5 of the summarizing pipe are connected to the rear flange 10, the first bracket 7 is connected to the exhaust pipe 2, the second bracket 9 is connected to the exhaust pipe 4, the third bracket 8 is connected to the exhaust pipe 2, and the bracket Four 10 is connected with exhaust pipe 4, and support five 11 is connected with exhaust pipe 2. The working process of the utility model: the exhaust manifold device is installed on the engine cylinder head by the front flange mounting hole 17, the rear flange mounting hole 18 is connected with the three-way catalytic converter, and the exhaust gas produced by the four cylinders when the engine is working The exhaust pipe 2 , the exhaust pipe upper and lower casing assembly 3 , and the exhaust pipe 4 going through a specific space are collected in the collecting pipe upper and lower casing assembly 5 , and the exhaust gas is finally discharged through the rear flange 10 .

Claims (3)

1. An engine exhaust manifold device, comprising an intake flange (1), an exhaust pipe (2), an upper and lower casing of the exhaust pipe (3), an exhaust pipe (4), and a summing pipe (5) , the air outlet flange (6), is characterized in that: the first air passage opening (19), the second air passage opening (20), the third air passage opening (21), the fourth The air passage opening (22), the air inlet end of the exhaust pipe (2) is connected to the first air passage opening (19), the air outlet end is connected to the air passage collection pipe (5), the upper and lower housings (3) of the exhaust pipe After group welding, it is connected with the second airway opening (20) and the third airway opening (21) of the intake flange (1), and its outlet end is connected to the airway collection pipe (5), and the exhaust pipe (4 ) The air inlet port is connected to the fourth air passage port (22) of the air intake flange (1), the exhaust end is connected to the air passage collection pipe (5), and the rear end of the air passage collection pipe (5) is connected to the exhaust pipe The gas flange (6) is connected. 2. The engine exhaust manifold device according to claim 1, characterized in that: support one (7), support two (8) and support three (9) are respectively installed on the exhaust pipe (2). 3. The engine exhaust manifold device according to claim 1, characterized in that: four brackets (10) and five brackets (11) are installed on the exhaust pipe (4).

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