A double-channel exhaust pipe assembly

Abstract

The present invention discloses a double-channel exhaust pipe assembly, which includes an exhaust pipe body. One end of the exhaust pipe body is connected to a supercharger. The exhaust pipe body includes a first exhaust channel and a second exhaust channel. The first exhaust channel and the second exhaust channel are respectively provided with an intake end and an outlet end. The outlet ends of the first exhaust channel and the second exhaust channel have an angle. An air intake connection platform is provided on the side wall of the second exhaust channel. The intake end of the second exhaust channel is opened on the air intake connection platform. Bellows are provided at the outlet ends of the first exhaust channel and the second exhaust channel. The supercharger is provided at the other end of the bellows. The present invention adopts double-channel exhaust, which reduces the problem that the front parts of the exhaust ports of multiple cylinders are connected to a single exhaust pipe, resulting in mutual influence of exhaust between cylinders, making the fluidity regions of the airflows in different exhaust ports or the exhaust pipe consistent. When multiple cylinders exhaust quickly, the exhaust smoothness of the entire exhaust pipe is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of automotive accessories, and particularly relates to a double-channel exhaust pipe assembly. Background Art

[0002] An engine has multiple cylinders. Traditionally, when exhausting, a single exhaust pipe is used to connect the exhaust ports of each cylinder. With the gradual increase in the number of current engine cylinders, such as a six-cylinder engine, etc., connecting all the exhaust ports of multiple cylinders to a single exhaust pipe is likely to cause problems where the exhaust of each cylinder affects each other. Moreover, the more cylinders are involved, the greater the mutual influence (interfering with the consistency of the airflow). At the same time, the rapid alternating exhaust of multiple cylinders also poses new requirements for the exhaust smoothness of the entire exhaust pipe. Currently, even if the relevant exhaust pipes are improved, there will always be certain defects in the exhaust of a single exhaust pipe.

[0003] In addition, existing exhaust pipes are usually rigidly connected to the supercharger. In actual working conditions, the vibration generated by the engine easily loosens or cracks the connection between the exhaust pipe and the supercharger, affecting the exhaust sealing performance. Currently, a bellows is used for soft connection at one end in the middle to solve the adverse effects caused by vibration. However, after adding the soft connection, the installation position of the supercharger has changed, resulting in a new problem that the stability of the supercharger cannot be guaranteed. Therefore, how to ensure the exhaust consistency and excellent stability in the exhaust pipe, and at the same time ensure that the connection between the exhaust pipe and the supercharger can guarantee both the sealing performance and the stability of the supercharger is an urgent problem to be solved. Summary of the Invention

[0004] The purpose of the present invention is to provide a double-channel exhaust pipe assembly to solve the problems that when the existing engine exhausts using a single exhaust pipe, the exhaust between cylinders is interfered; the connection method between the exhaust pipe and the supercharger has problems such as looseness, cracking caused by vibration, and poor stability of the supercharger.

[0005] To solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A double-channel exhaust pipe assembly includes an exhaust pipe body. One end of the exhaust pipe body is connected to a supercharger. The exhaust pipe body includes a first exhaust channel and a second exhaust channel. The first exhaust channel and the second exhaust channel are respectively provided with an intake end and an outlet end. The outlet ends of the first exhaust channel and the second exhaust channel have an angle. An intake port connection platform is provided on the side wall of the second exhaust channel. The intake end of the second exhaust channel is opened on the intake port connection platform. Bellows are provided at the outlet ends of the first exhaust channel and the second exhaust channel. The supercharger is provided at the other end of the bellows.

[0007] Further, a connector is movably connected to the intake end of the first exhaust channel.

[0008] Furthermore, the outlet ends of the first exhaust passage and the second exhaust passage are inclined upward, and the inclination angle is 15 - 45 degrees.

[0009] Furthermore, flanges are provided on the end faces of the outlet ends of the first exhaust passage and the second exhaust passage.

[0010] Furthermore, the air inlet connecting platform is in a rectangular cavity structure and is communicated with the second exhaust passage through the air inlet end of the second exhaust passage. Bolt connection holes extending from the front end of the air inlet connecting platform are respectively provided at the top and the bottom of the air inlet connecting platform.

[0011] Furthermore, there are three air inlet connecting platforms, and they are horizontally and equidistantly distributed on the side wall of the second exhaust passage.

[0012] Furthermore, a supercharger fixing seat is further included. Through holes matching the first exhaust passage and the second exhaust passage are provided on the supercharger fixing seat. One end of the supercharger fixing seat is communicated with a corrugated pipe, and the other end of the supercharger fixing seat is communicated with the air inlet of the supercharger. Bolt through holes penetrating from top to bottom are provided on both sides of the supercharger fixing seat. The supercharger fixing seat is placed on the top of the flywheel housing. Fixing bolts are provided in the bolt through holes on both sides of the supercharger fixing seat. The supercharger fixing seat is fixed on the flywheel housing through the fixing bolts.

[0013] Furthermore, both end faces of the through holes provided on the supercharger fixing seat are inclined.

[0014] Furthermore, both end faces of the through holes provided on the supercharger fixing seat are inclined.

[0015] The beneficial effects achieved by the present invention are as follows:

[0016] The present invention adopts a double-channel exhaust, which reduces the problem that the front parts of the exhaust ports of multiple cylinders are connected to a single exhaust pipe, resulting in mutual influence of exhaust between cylinders. It makes the fluidity regions of the airflows in different exhaust ports or exhaust pipes consistent. When multiple cylinders exhaust quickly, the exhaust smoothness of the entire exhaust pipe is improved.

[0017] By adopting the method of combining a corrugated pipe and a supercharger fixing seat, it can not only achieve soft connection, avoid loosening or cracking at the connection between the exhaust pipe and the supercharger due to vibration, and ensure its sealing performance, but also fix the supercharger through the supercharger fixing seat, improving the installation stability of the supercharger after the position layout is changed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In the drawings:

[0019] Figure 1 is the assembly schematic diagram of the present invention;

[0020] Figure 2It is a schematic assembly diagram of the exhaust pipe body, bellows and supercharger of the present invention;

[0021] Figure 3 It is a three-dimensional schematic diagram of the exhaust pipe body of the present invention;

[0022] Figure 4 It is a three-dimensional schematic diagram of the supercharger fixing seat of the present invention.

[0023] Reference numerals: 1, supercharger; 2, supercharger fixing seat; 2-1, first exhaust passage communication hole; 2-2, second exhaust passage communication hole; 2-3, bolt through hole; 3, cylinder head; 4, bellows; 5, exhaust pipe body; 5-1, first exhaust passage; 5-2, second exhaust passage; 5-3, intake port connection platform; 5-4, intake end of the second exhaust passage; 5-5, flange surface; 5-6, bolt connection hole; 5-7, outlet port of the first exhaust passage; 5-8, outlet port of the second exhaust passage; 6, flywheel housing; 7, connector; 8, flange end face. Detailed implementation manners

[0024] The following will be specifically described in conjunction with specific embodiments.

[0025] The present invention will be further described in detail below in conjunction with the specific implementation manners. It should be emphasized that the following description is merely exemplary and not intended to limit the scope of the present invention and its applications.

[0026] As Figures 1-4 shown, a double-channel exhaust pipe assembly includes an exhaust pipe body 5. One end of the exhaust pipe body 5 where the gas exits is connected to a supercharger 1. The exhaust pipe body 5 includes a first exhaust passage 5-1 and a second exhaust passage 5-2. The first exhaust passage 5-1 and the second exhaust passage 5-2 are respectively provided with an intake end and an outlet end. A connector 7 is movably connected to the intake end of the first exhaust passage 5-1 for connection to other exhaust pipes. The outlet port 5-7 of the first exhaust passage and the outlet port 5-8 of the second exhaust passage have an angle. The outlet port 5-7 of the first exhaust passage and the outlet port 5-8 of the second exhaust passage are inclined upward, and the inclination angle is 15-45 degrees, serving as an avoidance position and avoiding interference with other components. An intake port connection platform 5-3 is provided on the side wall of the second exhaust passage 5-2. The intake end 5-4 of the second exhaust passage is opened on the end face of the intake port connection platform 5-3. The intake port connection platform 5-3 has a rectangular cavity structure and is communicated with the cylinder head 3 through the intake end 5-4 of the second exhaust passage. Bolt connection holes 5-6 extending from the front end of the intake port connection platform 5-3 are respectively opened at the top and bottom of the intake port connection platform 5-3. There are three intake port connection platforms 5-3, and they are horizontally and equidistantly distributed on the side wall of the second exhaust passage 5-2. The intake port connection platform 5-3 of the second exhaust passage 5-2 is closely attached to the outlet of the cylinder head 3 and is fixed by bolts.

[0027] The outlet ends of the first exhaust passage 5-1 and the second exhaust passage 5-2 are provided with a corrugated pipe 4. The corrugated pipe 4 is arranged between the exhaust pipe body 5 and the supercharger 1. Both ends of the corrugated pipe 4 are in flange shapes, and the supercharger 1 is arranged at the other end of the corrugated pipe 4.

[0028] The end faces of the first exhaust passage outlet port 5-7 and the second exhaust passage outlet port 5-8 are provided with flange faces 5-5 of a double-hole structure adapted to the first exhaust passage outlet port 5-7 and the second exhaust passage outlet port 5-8. The corrugated pipe 4 is a double-pipe corrugated pipe, and both ends of the corrugated pipe 4 are also provided with flange end faces 8 corresponding to the flange faces 5-5 of the exhaust pipe body 5. Both ends of the corrugated pipe 4 are fixed to the exhaust pipe body 5 and the supercharger 1 through bolts.

[0029] This assembly further includes a supercharger fixing seat 2. The supercharger fixing seat 2 is integrally cast. Through holes adapted to the first exhaust passage 5-1 and the second exhaust passage 5-2 are opened on the supercharger fixing seat 2, namely, the first exhaust passage communication hole 2-1 and the second exhaust passage communication hole 2-2. The supercharger fixing seat 2 is arranged between the corrugated pipe 4 and the supercharger 1, and its function is to fix the supercharger 1 and the corrugated pipe 4. One end of the supercharger fixing seat 2 is communicated with the corrugated pipe 4, and the other end of the supercharger fixing seat 2 is communicated with the air inlet of the supercharger 1. Bolt through holes 2-3 penetrating from top to bottom are opened on both sides of the supercharger fixing seat 2. Two are opened on each side and have different heights. The supercharger fixing seat 2 is placed on the top of the flywheel housing 6. Fixing bolts are arranged in the bolt through holes 2-3 on both sides of the supercharger fixing seat 2. The supercharger fixing seat 2 is fixed to the flywheel housing 6 through the fixing bolts.

Claims

1. A double-channel exhaust pipe assembly, comprising an exhaust pipe body, one end of the exhaust pipe body is connected to a supercharger, and it is characterized in that: The exhaust pipe body includes a first exhaust passage and a second exhaust passage. The first exhaust passage and the second exhaust passage are respectively provided with an intake end and an outlet end. The outlet ends of the first exhaust passage and the second exhaust passage are angled. An intake port connecting platform is provided on the side wall of the second exhaust passage. The intake end of the second exhaust passage is opened on the intake port connecting platform. Bellows are provided at the outlet ends of the first exhaust passage and the second exhaust passage. The supercharger is provided at the other end of the bellows; The outlet ends of the first exhaust passage and the second exhaust passage are inclined upward, and the inclination angle is 15 - 45 degrees; Flanges are provided on the end faces of the outlet ends of the first exhaust passage and the second exhaust passage; The intake port connecting platform is in a rectangular cavity structure and is communicated with the second exhaust passage through the intake end of the second exhaust passage. Bolt connection holes extending from the front end of the intake port connecting platform are respectively provided at the top and bottom of the intake port connecting platform; It further includes a supercharger fixing seat. Through holes matching the first exhaust passage and the second exhaust passage are provided on the supercharger fixing seat. One end of the supercharger fixing seat is communicated with the bellows, and the other end of the supercharger fixing seat is communicated with the intake port of the supercharger. Bolt through holes penetrating from top to bottom are provided on both sides of the supercharger fixing seat. The supercharger fixing seat is placed on the top of the flywheel housing. Fixing bolts are provided in the bolt through holes on both sides of the supercharger fixing seat. The supercharger fixing seat is fixed on the flywheel housing through the fixing bolts; Both end faces of the through holes provided on the supercharger fixing seat are inclined; 2. The dual-channel exhaust pipe assembly according to claim 1, wherein: A connector is movably connected to the intake end of the first exhaust passage; 3. A double-channel exhaust pipe assembly according to claim 1, characterized in that: There are three intake port connecting platforms, and they are horizontally and equidistantly distributed on the side wall of the second exhaust passage.

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