Hot end system product assembly with back pressure self-adaptive adjusting and flow mixing functions

Abstract

The utility model discloses a hot end system product assembly with a back pressure self-adaptive adjusting and flow mixing function, and belongs to the technical field of automobile emission hot end products. One ends of the four exhaust manifolds are dispersed and connected with the air inlet flange, the other ends of the four exhaust manifolds are gathered and connected with the front end cone of the catalyst assembly through the connecting flange assembly, a communicating hole is formed in the connecting position of the front end cone and the exhaust manifolds, a flow guide valve is installed on the communicating hole, and an oxygen sensor installation base is arranged on the front end cone. According to the utility model, a clamshell type structure commonly used in the industry is innovatively optimized into an independent four-exhaust-pipe design, so that the problem that the performance of an engine is reduced due to mixed flow is fundamentally avoided. A backpressure self-adaptive adjusting mixed flow blade valve structure is originally introduced at the front end cone gathering position. The structure has the following advantages that the airflow concentration phenomenon can be effectively dispersed, the opening and closing amount can be automatically adjusted through airflow pressure, and airflow distribution can be intelligently adjusted and controlled.

Description

Technical Field

[0001] This utility model belongs to the technical field of automotive emission hot-end products, specifically relating to a hot-end system product assembly with back pressure adaptive adjustment mixing function. Background Technology

[0002] With the rapid development of the automotive industry, while meeting increasingly stringent emission standards, the market's demands for vehicle power performance are also constantly rising. Therefore, there is an urgent need to develop a new product structure assembly that not only meets environmental protection requirements but also effectively solves the problem of mixed flow phenomena that easily occur in traditional clamshell structures, thus affecting engine performance. Utility Model Content

[0003] To address the aforementioned problems, this invention provides a hot-end system assembly with back pressure adaptive adjustment and mixing function. The commonly used clamshell structure in the industry is optimized into an independent four-exhaust pipe structure to avoid the reduction in engine performance output caused by mixing. At the same time, a vane valve structure is independently introduced at the front cone junction, which can effectively solve the problem of airflow concentration.

[0004] The technical solution adopted by this utility model is:

[0005] A hot-end system product assembly with back pressure adaptive regulating mixing function includes an intake flange, a connecting flange assembly, an oxygen sensor mounting base, a catalytic converter assembly, a flow guide valve, and four exhaust manifolds. One end of the four exhaust manifolds is dispersed and connected to the intake flange, and the other end of the four exhaust manifolds converges and is connected to the front cone of the catalytic converter assembly through the connecting flange assembly. A connecting hole is opened at the connection between the front cone and the exhaust manifold, and a flow guide valve is installed on the connecting hole. An oxygen sensor mounting base is provided on the front cone for installing an oxygen sensor.

[0006] Compared with the prior art, the present invention has the following advantages:

[0007] 1. This utility model proposes a hot-end system assembly with back pressure adaptive regulating mixing function. By innovatively optimizing the commonly used clamshell structure in the industry into an independent four-exhaust-pipe design, it fundamentally avoids the engine performance degradation caused by mixing. Addressing the potential exhaust concentration phenomenon and reduced catalytic converter utilization caused by four independent exhaust pipes, this utility model uniquely introduces a back pressure adaptive regulating mixing vane valve structure at the front conical junction. This structure has the following advantages: 1. It can effectively disperse the airflow concentration phenomenon; 2. It achieves automatic adjustment of the opening and closing amount through airflow pressure; 3. It intelligently controls the airflow distribution.

[0008] Furthermore, the high-sensitivity airflow sensor equipped in this invention can accurately monitor the oxygen content in the airflow, providing reliable data support for the stable operation of the engine. This integrated design not only improves the overall performance of the engine but also ensures the optimized operation of the emission control system.

[0009] 2. This utility model introduces a flow guide valve independently at the front cone junction. This structure can effectively solve the problem of airflow concentration, and through airflow pressure, it can automatically adjust the opening and closing amount, thereby automatically adjusting the airflow. The adjacent oxygen sensor can also fully capture the oxygen content in the airflow, thus ensuring stable engine operation. Attached Figure Description

[0010] Fig. 1 This is a schematic diagram of the structure of this utility model;

[0011] Fig. 2 This is a schematic diagram of the installation of the flow guide valve of this utility model;

[0012] Fig. 3 This is a schematic diagram of the flow guide valve structure of this utility model;

[0013] The components are: 1. Exhaust manifold; 2. Intake flange; 3. Manifold housing; 4. Connecting flange assembly; 5. Oxygen sensor mounting base; 6. Front cone; 7. Catalyst assembly; 8. Flow deflector; 9. Flow deflector base; 10. Flow deflector vane; 11. Spring plate. Detailed Implementation

[0014] To better understand the purpose, structure, and function of this utility model, a more detailed description of this utility model will be provided below with reference to the accompanying drawings.

[0015] like Figs. 1-3 As shown, this utility model provides a hot-end system product assembly with back pressure adaptive adjustment mixing function, including an intake flange 2, a connecting flange assembly 4, an oxygen sensor mounting base 5, a catalytic converter assembly 7, a flow guide valve 8, and four exhaust manifolds 1; one end of the four exhaust manifolds 1 is dispersed and connected to the intake flange 2, and the other end of the four exhaust manifolds 1 converges and is connected to the front cone 6 of the catalytic converter assembly 7 through the connecting flange assembly 4. A connecting hole is opened at the connection between the front cone 6 and the exhaust manifolds 1, and a flow guide valve 8 is installed on the connecting hole. An oxygen sensor mounting base 5 is provided on the front cone 6, and the oxygen sensor mounting base 5 is used to install an oxygen sensor.

[0016] like Fig. 2 , Fig. 3As shown, the flow guide valve 8 includes a flow guide base 9, a flow guide blade 10, and a spring plate 11. The flow guide base 9 has an annular structure and is installed on the connecting hole of the front cone 6. The front and rear ends of the flow guide blade 10 rest on the flow guide base 9. The left and right ends of the flow guide blade 10 are separated from the flow guide base 9. Multiple vent holes are opened on the flow guide blade 10. The flow guide blade 10 and the flow guide base 9 are connected by the spring plate 11 to realize automatic opening and closing.

[0017] like Fig. 2 , Fig. 3 As shown, one end of the spring sheet 11 is riveted to the arc-shaped protrusion on the flow guide base 9, and the other end of the spring sheet 11 is riveted to the flow guide blade 10.

[0018] like Fig. 1 As shown, the other ends of the four exhaust manifolds 1 converge at the junction housing 3, and are connected to the connecting flange assembly 4 through the junction housing 3.

[0019] 1. This utility model avoids exhaust mixing by using four independent exhaust manifolds 1, thereby improving engine performance output.

[0020] 2. The design of the automatic flow guide valve 8 on the front cone 6 avoids the phenomenon of concentrated airflow in a single intake channel, thereby improving the catalytic utilization rate of the carrier.

[0021] 3. The flow guide valve 8 can fully introduce airflow into the oxygen sensor accessory, increasing the airflow capture volume of the oxygen sensor and ensuring that the sensor works fully and effectively.

[0022] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A hot-end system product assembly with back pressure adaptive adjustment mixing function, characterized in that: It includes an intake flange (2), a connecting flange assembly (4), an oxygen sensor mounting base (5), a catalyst assembly (7), a flow guide valve (8), and four exhaust manifolds (1); one end of the four exhaust manifolds (1) is dispersed and connected to the intake flange (2), and the other end of the four exhaust manifolds (1) converges and is connected to the front cone (6) of the catalyst assembly (7) through the connecting flange assembly (4). A connecting hole is opened at the connection between the front cone (6) and the exhaust manifolds (1), and a flow guide valve (8) is installed on the connecting hole. An oxygen sensor mounting base (5) is provided on the front cone (6), and the oxygen sensor mounting base (5) is used to install an oxygen sensor.

2. The hot-end system product assembly with back pressure adaptive adjustment mixing function according to claim 1, characterized in that: The flow guide valve (8) includes a flow guide base (9), a flow guide blade (10), and a spring plate (11). The flow guide base (9) is an annular structure and is installed on the connecting hole of the front cone (6). The front and rear ends of the flow guide blade (10) rest on the flow guide base (9). The left and right ends of the flow guide blade (10) are separated from the flow guide base (9). Multiple vent holes are opened on the flow guide blade (10). The flow guide blade (10) and the flow guide base (9) are connected by the spring plate (11).

3. The hot-end system product assembly with back pressure adaptive adjustment mixing function according to claim 2, characterized in that: One end of the spring sheet (11) is riveted to the arc-shaped protrusion on the guide base (9), and the other end of the spring sheet (11) is riveted to the guide blade (10).

4. The hot-end system product assembly with back pressure adaptive adjustment mixing function according to claim 1, characterized in that: The other ends of the four exhaust manifolds (1) converge at the junction housing (3) and are connected to the connecting flange assembly (4) through the junction housing (3).

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