Split-flow mechanism for double-outlet tail pipe and decorative tail pipe assembly with split-flow mechanism

Abstract

The invention relates to the field of exhaust systems, in particular to a flow dividing mechanism for a double-outlet tail pipe and a decorative tail pipe assembly with the flow dividing mechanism. Comprising a flow dividing partition plate, and the flow dividing partition plate comprises two single plates which are distributed in a crossed mode; one ends of the two single plates are attached to each other, and the other ends freely extend; through the arrangement of the flow dividing mechanism, tail gas flowing out of the gas inlet pipe can be divided, it is guaranteed as far as possible that the amount of the tail gas subsequently entering the two decorative tail pipes is basically the same, it is guaranteed as far as possible that the service life of the two decorative tail pipes is the same, and the problem of rapid aging caused by too large gas inlet amount of a single decorative tail pipe is solved.

Description

Technical Field

[0001] The invention relates to the field of exhaust systems, in particular to a diverter mechanism for a dual-outlet tail pipe and a decorative tail pipe assembly having the diverter mechanism. Background Art

[0002] The muffler assembly of the automobile exhaust system mainly includes the air intake end, the hook, the muffler bag, and the air outlet end, among which the air outlet end is divided into the exhaust pipe and the decorative tail pipe assembly.

[0003] The emergence of decorative tail pipes (single outlet on the same side, double outlets on the same side, single outlet on both sides, four outlets on both sides) has solved the problem of monotonous layout of automobile tail pipes. Decorative tail pipes generally use larger inner liner openings to ensure smooth outflow of exhaust airflow, with lower exhaust noise and back pressure, which can effectively improve the exhaust noise of the entire vehicle.

[0004] When there are multiple decorative tail pipes on a traditional side, for example, when there are two decorative tail pipes, a tee is generally used for bridging. Due to the limitation of its own structure, the traditional tee will cause the two decorative tail pipes to have different air outputs. If they are in this working condition for a long time, the service life of the two decorative tail pipes will be inconsistent. For decorative tail pipes that continuously output more air, their service life will obviously be reduced.

[0005] Therefore, in order to improve or solve at least one of the above problems, it is necessary to optimize the design of the existing exhaust structure.

[0006] The existing patent 201611264902.1 - Automobile three-way exhaust tail pipe and its manufacturing method does not clearly solve the technical problems mentioned above. Summary of the invention

[0007] The object of the present invention is to provide a flow dividing mechanism which can ensure that the gas output of two decorative tail pipes connected by a three-way pipe is as equal as possible.

[0008] In order to achieve the above object, the technical solution adopted by the present invention is:

[0009] A flow splitter mechanism for a double-outlet tail pipe comprises a flow splitter baffle, wherein the flow splitter baffle comprises two single plates, and the two single plates are intersectingly distributed; one end of the two single plates is mutually attached, and the other end is freely extended.

[0010] Each monomer plate includes a base plate and a guide plate; the base plates in the two monomer plates are attached to each other, and the guide plates in the two monomer plates extend freely.

[0011] The guide plate is an arc-shaped plate.

[0012] The base plates in the two single plates are attached to each other; the curvatures of the guide plates in the adjacent single plates are different.

[0013] Each end of the monomer plate is an arc-shaped surface; after the two monomer plates are bonded together, a semicircular arc-shaped surface is formed at the ends of the bonded monomer plates.

[0014] A decorative tail pipe assembly comprises an air intake pipe; the air intake pipe is connected to two decorative tail pipes via a tee pipe; the diversion mechanism is arranged in the tee pipe;

[0015] One end of the diversion mechanism is arranged at one end of the three-way pipe close to the air intake pipe, and the other end extends to one side of the two decorative tail pipes through two single plates.

[0016] The tee comprises an upper tee petal and a lower tee petal; the upper tee petal and the lower tee petal are arranged opposite to each other; and the flow diversion mechanism extends from the upper tee petal to the lower tee petal.

[0017] One side of the flow dividing baffle is connected to the upper petal of the tee pipe, and the other end is spaced apart from the lower petal of the tee pipe.

[0018] The diverter baffle is arranged in the Z direction of the whole vehicle.

[0019] The three-way pipe is sleeved on the air inlet pipe; the flow dividing baffle is pressed against the end of the air inlet pipe.

[0020] The advantages of the present invention are:

[0021] The invention discloses a flow splitting mechanism for a dual-outlet tail pipe and a decorative tail pipe assembly having the flow splitting mechanism.

[0022] The present invention discloses that the exhaust gas flowing out of the intake pipe can be diverted by setting a diversion mechanism, so as to ensure that the amount of exhaust gas subsequently entering two decorative tail pipes is basically the same, to ensure that the service life of the two decorative tail pipes is consistent, and to avoid the problem of rapid aging of a single decorative tail pipe due to excessive air intake. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The following is a brief description of the contents expressed in the drawings of the present invention and the symbols in the drawings:

[0024] Figure 1 This is the first axonometric drawing of the present invention.

[0025] Figure 2 This is the second axonometric drawing of the present invention.

[0026] Figure 3 It is a schematic diagram of the structure of the present invention.

[0027] Figure 4 The figure is a schematic diagram of the structure of the present invention in which the upper petal of the tee pipe is removed.

[0028] Figure 5 This is a front view of the guide plate of the present invention when it is installed on the three-way pipe.

[0029] The marks in the above figure are:

[0030] 1-1, diversion mechanism, 1, diversion partition, 11, single body plate, 111, base plate, 112, guide plate, 2, connecting pipe, 3, three-way pipe, 4, decorative tail pipe. DETAILED DESCRIPTION

[0031] The specific implementation of the present invention will be further explained in detail below by describing the optimal embodiment with reference to the accompanying drawings.

[0032] A diversion mechanism for a dual-outlet tail pipe; comprising a diversion baffle 1, the diversion baffle 1 comprises two single plates 11, the two single plates 11 are arranged in an intersecting manner; one end of the two single plates 11 is in contact with each other, and the other end is freely extended; the present invention discloses that through the arrangement of the diversion mechanism 1-1, the tail gas flowing out of the intake pipe 2 can be diverted, so as to ensure that the amount of tail gas subsequently entering the two decorative tail pipes 4 is basically the same, and the service life of the two decorative tail pipes 4 is ensured to be consistent, so as to avoid the problem of rapid aging of a single decorative tail pipe 4 due to excessive intake of air.

[0033] The diversion mechanism 1-1 disclosed in the present invention is mainly applicable to automobile tail pipes, and is applicable to automobile tail pipe assemblies having double-outlet tail pipes on one side of the entire vehicle.

[0034] The present invention can ensure that the exhaust gas output of the two decorative tail pipes 4 is as consistent as possible through the arrangement of the diversion mechanism 1-1, so as to ensure that the service life of the two decorative tail pipes 4 is as long as possible and avoid the problem of accelerated aging of a single decorative tail pipe 4 due to excessive air intake.

[0035] In the present invention, the diversion mechanism 1-1 mainly includes a diversion baffle 1, which mainly plays a partitioning role. When used later, the diversion baffle 1 plays a blocking role, which is convenient for dividing the airflow entering the intake pipe 2, thereby reversing the diversion of the subsequent intake airflow and realizing the exhaust gas after diversion is discharged from the corresponding decorative tail pipe 4.

[0036] In addition, the diversion baffle 1 described in the present invention includes two single plates 11, and the two single plates 11 are intersectingly distributed; one end of the two single plates 11 is in contact with each other, and the other end is freely extended; the setting of the two single plates 11 facilitates the splitting operation of the diversion baffle 1, because in actual use, the three-way pipe 3 connected to the intake pipe 2 of the present invention is not a regular three-way pipe 3 structure, but has a certain inclination, as shown in the accompanying drawings; the traditional single plate body is split, which is easy to form a flow-blocking vortex in the three-way pipe 3, affecting the exhaust efficiency of the exhaust gas; the present invention can better control the direction of the exhaust gas and better realize the exhaust operation of the exhaust gas by performing the splitting operation of the two single plates 11 separately.

[0037] Furthermore, in the present invention, each monomer plate 11 includes a substrate 111 and a guide plate 112; the substrates 111 in the two monomer plates 11 are attached to each other, and the guide plates 112 in the two monomer plates 11 extend freely; in the present invention, the substrate 111 is a connecting plate, which facilitates the connection between the two monomer plates 11, and the guide plate 112 mainly plays a role of guide and division in the subsequent process.

[0038] Furthermore, the guide plate 112 in the present invention is an arc-shaped plate; in the present invention, the design of the guide plate 112 as an arc-shaped plate can better control the direction of the exhaust gas. At the same time, the guide plate 112 is an arc-shaped plate, and the guide plate 112 can be arranged based on the direction of each through hole of the three-way pipe 3 to optimize the guide effect of the guide plate 112.

[0039] Furthermore, in the present invention, the base plates 111 in the two monomer plates 11 are bonded to each other; such a configuration facilitates the arrangement and placement of the two monomer plates 11. In the present invention, the two monomer plates 11 can be formed as one piece, or they can be processed separately and then connected by welding; the mutual bonding arrangement of the monomer plates 11 can reduce the space occupied by the ends of the two monomer plates 11, and reduce the obstruction of the guide baffle to the exhaust gas discharged inside and outside the intake pipe 2; at the same time, the guide plates 112 in adjacent monomer plates 11 in the present invention have different curvatures; such a configuration can make the guide plates 112 in the two monomer plates 11 distributed at intervals, which is convenient for the subsequent extension to the other two through holes of the three-way pipe 3 except the intake through hole, and better realize the guidance and diversion of the exhaust gas.

[0040] Furthermore, in the present invention, each end of the single plate 11 is an arc-shaped surface; after the two single plates 11 are bonded together, a semicircular arc-shaped surface is formed at the ends of the bonded single plates 11; based on such a setting, the edges of the end of the guide baffle can be reduced, and the existence of the edges of the guide baffle can be reduced so that the guide baffle affects the exhaust operation of the intake pipe 2 to the three-way pipe 3; based on the above design, the end of the guide baffle of the present invention is in an arc shape, which not only has a diversion effect, but also can reduce the resistance of the exhaust gas operation.

[0041] A decorative tail pipe assembly comprises an intake pipe 2; the intake pipe 2 is connected to two decorative tail pipes 4 via a three-way pipe 3; the three-way pipe 3 is provided with a diverter mechanism 1-1; one end of the diverter mechanism 1-1 is arranged at one end of the three-way pipe 3 close to the intake pipe 2, and the other end extends to one side of the two decorative tail pipes 4 respectively via two single plates 11; the present invention discloses that by setting the diverter mechanism 1-1, the exhaust gas flowing out of the intake pipe 2 can be diverted, so as to ensure that the exhaust gas amount subsequently entering the two decorative tail pipes 4 is basically the same, so as to ensure that the service life of the two decorative tail pipes 4 is consistent, and to avoid the problem of rapid aging of a single decorative tail pipe 4 due to excessive intake volume.

[0042] In actual use, the exhaust gas enters the three-way pipe 3 through the intake pipe 2, and the exhaust gas entering the three-way pipe 3 is discharged to the outside through the decorative tail pipe 4 connected thereto.

[0043] Furthermore, the three-way pipe 3 described in the present invention includes a three-way pipe upper petal 31 and a three-way pipe lower petal 32; the three-way pipe upper petal 31 and the three-way pipe lower petal 32 are arranged relative to each other; the three-way pipe upper petal 31 and the three-way pipe lower petal 32 in the present invention are both arc-shaped plates, which are subsequently assembled into an internal hollow chamber through the relative assembly of the three-way pipe upper petal 31 and the three-way pipe lower petal 32. The three-way pipe 3 of the present invention is designed in a split manner by the three-way pipe upper petal 31 and the three-way pipe lower petal 32, which facilitates the assembly and production of the three-way pipe 3, and also facilitates the connection between the three-way pipe 3 and the diversion mechanism 1-1; at the same time, the diversion mechanism 1-1 in the present invention extends from the three-way pipe upper petal 31 to the three-way pipe lower petal 32; the diversion baffle 1 is arranged in the Z direction of the whole vehicle; such a setting can realize the longitudinal division and zoning of the middle part of the interior of the three-way pipe 3, which is convenient for the consistency of the exhaust gas discharge amount of the two decorative tail pipes 4 when the exhaust gas is discharged later.

[0044] Furthermore, in the present invention, one side of the diversion baffle 1 is connected to the upper lobe 31 of the tee, and the other end is spaced apart from the lower lobe 32 of the tee; based on such a setting, while achieving blocking and diversion, it is also possible to avoid breakage or open welding of the diversion baffle 1 caused by temperature difference deformation of the diversion baffle 1.

[0045] At the same time, in the present invention, the three-way pipe 3 is sleeved on the intake pipe 2; the diverter baffle 1 is pressed against the end of the intake pipe 2; the intake pipe 2 is equivalent to being inserted into the three-way pipe 3, and the intake pipe 2 has a certain thickness, thereby forming a step platform. The present invention is based on such an arrangement, and the diverter baffle 1 is pressed against the end of the intake pipe 2, which facilitates the limitation of the assembly position of the intake pipe 2 and the three-way pipe 3; at the same time, the diverter baffle 1 is directly pressed against the end of the intake pipe 2, and it is generally required that the diverter baffle 1 is arranged along the diameter direction of the intake pipe 2. Such an arrangement enables the air outlet of the intake pipe 2 to be directly based on the diverter baffle 1, which can better realize the diversion of the exhaust gas and ensure the uniformity of the diverted exhaust gas.

[0046] specific:

[0047] The exhaust gas flow of the present invention enters the three-way pipe 3 through the intake pipe 2, and the flow is divided into two parts in the three-way pipe 3 by a guide baffle. At the same time, the shape of the guide baffle is used to block and reflect the flow to the two decorative tail pipes 4, so that the airflow is evenly distributed to the two decorative tail pipes 4; the air outlet volumes of the two outlets of the decorative tail pipe assembly are made consistent as much as possible.

[0048] The tee 3 includes an upper flap 31 and a lower flap 32; a flow guide mechanism is arranged inside the tee 3; the upper flap 31, the lower flap 32 and the flow guide mechanism are welded together. The upper flap 31 and the lower flap 32 will experience temperature difference deformation (thermal stress release phenomenon) during high-temperature operation. The flow guide baffle, as an internal diverter, will also change with the temperature difference. In order to avoid the breakage or open welding of the flow guide baffle caused by the temperature difference deformation of the three at the same time, the flow guide baffle is designed to only weld the upper flap 31 of the tee, and a gap of about 3 mm is left between the flow guide baffle and the lower flap 32 of the tee to leave a space for releasing the temperature difference deformation.

[0049] Based on the above design, the present invention has the following technical effects:

[0050] 1. It can be ensured that when there are multiple decorative tail pipes 4, the air output of the multiple decorative tail pipes 4 is basically the same.

[0051] 2. The guide baffle has low cost, simple structure and easy operation, which can perfectly solve the problem of inconsistent air output of the exhaust system's single-side two-outlet or double-side four-outlet decorative tail pipe assembly.

[0052] Obviously, the specific implementation of the present invention is not limited to the above-mentioned methods. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention, they are all within the protection scope of the present invention.

Claims

1. A flow splitter mechanism for a dual-outlet tail pipe; characterized in that: The utility model comprises a flow dividing partition plate, wherein the flow dividing partition plate comprises two monomer plates, and the two monomer plates are intersectingly distributed; one end of the two monomer plates is mutually attached, and the other end is freely extended.

2. A flow splitting mechanism for a dual-outlet tail pipe according to claim 1; characterized in that: Each monomer plate includes a base plate and a guide plate; the base plates in the two monomer plates are attached to each other, and the guide plates in the two monomer plates extend freely.

3. A flow splitter mechanism for a dual-outlet tail pipe according to claim 2; characterized in that: The guide plate is an arc-shaped plate.

4. A flow splitting mechanism for a dual-outlet tail pipe according to claim 3; characterized in that: The base plates in the two single plates are attached to each other; the curvatures of the guide plates in the adjacent single plates are different.

5. A flow splitting mechanism for a dual-outlet tail pipe according to claim 1; characterized in that: Each end of the monomer plate is an arc-shaped surface; after the two monomer plates are bonded together, a semicircular arc-shaped surface is formed at the ends of the bonded monomer plates.

6. A decorative tail pipe assembly, characterized in that: It includes an intake pipe; the intake pipe is connected to two decorative tail pipes through a three-way pipe; the three-way pipe is provided with a diversion mechanism as described in any one of claims 1 to 5; one end of the diversion mechanism is arranged at one end of the three-way pipe close to the intake pipe, and the other end extends to one side of the two decorative tail pipes through two single plates.

7. A decorative tail pipe assembly according to claim 6, characterized in that: The tee comprises an upper tee petal and a lower tee petal; the upper tee petal and the lower tee petal are arranged opposite to each other; and the flow diversion mechanism extends from the upper tee petal to the lower tee petal.

8. A decorative tail pipe assembly according to claim 7, characterized in that: One side of the flow dividing baffle is connected to the upper petal of the tee pipe, and the other end is spaced apart from the lower petal of the tee pipe.

9. A decorative tail pipe assembly according to claim 7, characterized in that: The diverter baffle is arranged in the Z direction of the whole vehicle.

10. The decorative tail pipe assembly according to claim 7, characterized in that: The three-way pipe is sleeved on the air inlet pipe; the flow dividing baffle is pressed against the end of the air inlet pipe.

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