CN210118188U - Pipeline structure for dual-mode muffler, dual-mode muffler and vehicle - Google Patents
Pipeline structure for dual-mode muffler, dual-mode muffler and vehicle Download PDFInfo
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- CN210118188U CN210118188U CN201920672280.9U CN201920672280U CN210118188U CN 210118188 U CN210118188 U CN 210118188U CN 201920672280 U CN201920672280 U CN 201920672280U CN 210118188 U CN210118188 U CN 210118188U
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Abstract
The utility model provides a pipeline structure, bimodulus silencer and vehicle for bimodulus silencer, wherein, this pipeline structure includes: a conduit, a passive valve, and a flow regulator; wherein the pipeline is provided with a passive valve; the flow rate adjusting member is provided at an end portion of the pipe, and gradually decreases a flow rate of the fluid in a direction from a rotation point of the passive valve to a point farthest from the rotation point when the passive valve is closed. In this embodiment, a flow rate adjusting member is provided in the pipeline, and the flow rate adjusting member gradually reduces the flow rate in the direction from the rotation point of the passive valve to the point farthest away from the rotation point when the passive valve is closed, so that the linearity of the opening degree of the valve sheet and the fluid flow rate is increased even if the torque of each section of the valve sheet to the rotation axis is equal, and the stability of the noise control level is enhanced.
Description
Technical Field
The utility model relates to a bimodulus silencer falls the technical field of making an uproar, particularly, relates to a pipeline structure, bimodulus silencer and vehicle for bimodulus silencer.
Background
Referring to fig. 1, the dual-mode muffler adopts a passive valve 2 to control the on-off of exhaust airflow to reduce noise, specifically: when the engine rotates at a low speed, the passive valve 2 is closed to form a resonant cavity, so that low-frequency noise is reduced; and when the engine rotates at a high speed, the valve is opened to form an airflow channel and reduce exhaust back pressure.
When the engine is transited from low rotating speed to high rotating speed, the valve plate 22 is gradually opened, in the opening process, because the airflow in the pipeline 1 is uniformly blown to the surface of the valve plate 22, but the distances from all the positions of the valve plate 22 to the rotating shaft 21 are different, the airflow flow is small, and the opening degree and the airflow flow linearity of the valve plate 22 are poor (F L)3>F*L2>F*L1) The noise control level is unstable.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a pipeline structure, bimodulus silencer and vehicle for bimodulus silencer aims at solving the unstable problem of noise control level when present engine is by low rotational speed to high rotational speed transition.
On the one hand, the utility model provides a pipeline structure for bimodulus muffler, this pipeline structure includes: a conduit, a passive valve, and a flow regulator; wherein the pipeline is provided with a passive valve; the flow rate adjusting member is provided at an end portion of the pipe, and gradually decreases a flow rate of the fluid in a direction from a rotation point of the passive valve to a point farthest from the rotation point when the passive valve is closed.
Further, in the above pipeline structure for the dual-mode muffler, the flow regulating member is a protrusion convexly provided on the inner wall of the pipeline towards the interior of the pipeline, and the maximum curvature of the protrusion points to the rotating shaft of the passive valve.
Further, in the pipeline structure for the dual-mode muffler, the protrusion is arranged close to the passive valve.
Further, in the above-mentioned pipe line structure for the double mode muffler, the protrusion and the rotation shaft of the passive valve are located on both sides of the axis of the pipe line.
Further, in the pipeline structure for the dual-mode muffler, the bulge is streamline.
Further, in the pipeline structure for the dual-mode muffler, the protrusion is formed by the fact that the outer wall of the pipeline is sunken towards the inner part of the pipeline.
Furthermore, in the pipeline structure for the dual-mode muffler, the protrusion is a protruding structure additionally arranged on the inner wall of the pipeline.
Further, in the above-mentioned piping structure for the dual mode muffler, the passive valve includes: the valve block, the valve block is connected with the rotation axis through the spring shaft, and the rotation axis is connected with the pipeline.
The utility model discloses in, be provided with flow control spare in the pipeline, flow control spare makes from the rotation point of passive valve to reduce gradually with the ascending flow in the side of the point of rotation point at a distance from farthest when passive valve is closed, even the torque of valve block each section to the rotation axis equals, has increased the linearity of valve block aperture and fluid flow to noise control level's stability has been strengthened.
On the other hand, the utility model also provides a bimodulus silencer, this bimodulus silencer has pipeline structure for the bimodulus silencer.
The utility model discloses in, this bimodulus silencer has pipeline structure for the bimodulus silencer, because be provided with flow control spare in the pipeline of pipeline structure for the bimodulus silencer, flow control spare makes from the rotation point of passive valve to reduce gradually with the ascending flow in the side of the point of rotation at a distance from the farthest point when passive valve is closed, even the torque of valve block each section to the rotation axis equals, has increased the linearity of valve block aperture and fluid flow to bimodulus silencer to the noise control level stability has been strengthened.
In another aspect, the present invention also provides a vehicle having a dual mode muffler.
The utility model discloses in, this vehicle has the bimodulus silencer, and this bimodulus silencer has the pipeline structure for the bimodulus silencer that above-mentioned embodiment provided, because be provided with flow control spare in this bimodulus silencer pipeline structure's the pipeline, flow control spare makes from the rotation point of passive valve to reduce gradually with the ascending flow in the direction of the point of rotation point at a distance from farthest when the passive valve is closed, even the torque of valve block each section to the rotation axis equals, valve block aperture and fluid flow's linearity has been increased, thereby the bimodulus silencer has been strengthened to the horizontally stability of noise control, just also make the noise control performance of vehicle better, user experience has been improved.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a schematic structural diagram of a pipeline of a conventional dual-mode muffler;
fig. 2 is a schematic structural diagram of a pipeline structure for a dual-mode muffler according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Pipeline structure embodiment for the bimodulus muffler:
referring to fig. 2, a preferred structure of the pipe structure for the double mode muffler provided by the present embodiment is shown. As shown, the piping structure includes: a pipeline 1, a passive valve 2 and a flow regulator 3. Wherein, pipeline 1 is stainless steel material, is rolled up by the steel sheet and is formed. The end of the pipeline 1 is provided with a passive valve 2, the passive valve 2 comprising: a rotating shaft 21 and a valve sheet 22, wherein the rotating shaft 21 is welded to the end of the pipeline 1 and is made of stainless steel, the valve sheet 22 is connected to the rotating shaft 21 through a spring shaft (not shown), and the valve sheet 22 can rotate around the rotating shaft 21. A flow regulating member 3 is also arranged in the pipeline 1, the flow regulating member 3 being adapted to regulate the flow of fluid in the vicinity of the valve plate 22, in particular, by regulation of the flow regulating member 3, in a direction from the point of rotation of the passive valve 2 to the point of furthest rotation when the passive valve 2 is closedThe flow rate of the fluid is gradually reduced even if the flow rate of the fluid distributed to the valve sheet 22 is gradually reduced in the direction from the rotary shaft 21 to the valve sheet 22, i.e., F1>F2>F3And due to L1<L2<L3Therefore F is1*L1、F2*L2And F3*L3The valve plates 22 are equal in size as much as possible, namely, the torque of each section of the valve plate 22 to the rotating shaft 21 is equal, and the linearity of the opening degree of the valve plate 22 and the fluid flow is improved, so that the stability of the noise control level is enhanced.
In the above embodiment, the flow rate adjusting member 3 is a protrusion protruding from the inner wall of the pipeline 1 toward the inside of the pipeline 1, and the maximum curvature of the protrusion is directed to the rotating shaft 21, when the fluid passes through the protrusion, most of the flow rate will move along the tangent line of the maximum curvature, and because the maximum curvature of the protrusion is directed to the rotating shaft 21, most of the fluid will flow near the rotating shaft 21, so that the flow rate of the fluid distributed in the direction from the rotating shaft 21 to the valve plate 22 is gradually reduced.
In the above embodiment, the protrusion is disposed close to the passive valve 2, and the protrusion and the rotating shaft 21 of the passive valve 2 are respectively disposed on two sides of the axis of the pipeline 1, so as to achieve the purpose of gradually reducing the flow rate of the fluid distributed in the direction from the rotating shaft 21 to the valve sheet 22. The projections are streamlined to avoid the projections from significantly interfering with the flow of the fluid. The protrusion can be formed by the outer wall of the pipeline 1 sinking towards the inner part of the pipeline, or a protrusion structure which is additionally arranged on the inner wall of the pipeline 1 independently.
In summary, in the embodiment, the flow rate adjusting member 3 is disposed in the pipeline 1, and the flow rate adjusting member 3 gradually decreases the flow rate in the direction from the rotation point of the passive valve 2 to the point farthest from the rotation point when the passive valve 2 is closed, so that even if the torques of the segments of the valve sheet 22 to the rotation shaft 21 are equal, the linearity of the opening degree of the valve sheet 22 and the fluid flow rate is increased, and the stability of the noise control level is enhanced.
Dual mode muffler embodiment:
the embodiment provides a dual-mode muffler, which has a pipeline structure for the dual-mode muffler, and the embodiment of the specific structure of the pipeline structure for the dual-mode muffler is only referred to the embodiment of the pipeline structure for the dual-mode muffler, which is not described herein again.
The dual-mode muffler has a pipeline structure for the dual-mode muffler, and because the flow regulating part 3 is arranged in the pipeline 1 of the pipeline structure for the dual-mode muffler, the flow regulating part 3 gradually reduces the flow in the direction from the rotating point of the passive valve 2 to the point farthest away from the rotating point when the passive valve 2 is closed, even if the torque of each section of the valve plate 22 to the rotating shaft 21 is equal, the linearity of the opening degree of the valve plate 22 and the fluid flow is increased, and the stability of the dual-mode muffler to the noise control level is enhanced.
The embodiment of the vehicle is as follows:
the embodiment provides a vehicle, the vehicle has a double-mode muffler, and the double-mode muffler has the pipeline structure for the double-mode muffler that the embodiment provided, because flow regulating part 3 is provided in pipeline 1 of the pipeline structure for the double-mode muffler, flow regulating part 3 makes flow in the direction from the rotation point of passive valve 2 to the point that is farthest away from the rotation point when passive valve 2 is closed gradually reduce, even if the torque of each section of valve plate 22 to rotation shaft 21 is equal, the linearity of the opening degree of valve plate 22 and the fluid flow is increased, thereby the stability of the double-mode muffler to the noise control level is enhanced, the noise control performance of the vehicle is better, and the user experience is improved.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A pipeline structure for a dual-mode muffler is characterized by comprising: the device comprises a pipeline (1), a passive valve (2) and a flow regulating part (3); wherein the content of the first and second substances,
the pipeline (1) is provided with the passive valve (2);
the flow rate adjusting member (3) is provided at an end of the pipeline (1), and the flow rate adjusting member (3) gradually decreases a fluid flow rate in a direction from a rotation point of the passive valve (2) to a point farthest from the rotation point when the passive valve (2) is closed.
2. The piping structure for a dual mode muffler according to claim 1,
the flow regulating part (3) is a bulge convexly arranged on the inner wall of the pipeline (1) towards the interior of the pipeline (1), and the maximum curvature of the bulge points to a rotating shaft (21) of the passive valve (2).
3. The piping structure for a dual mode muffler according to claim 2,
the projection is disposed adjacent to the passive valve (2).
4. The piping structure for a dual mode muffler according to claim 2,
the projection and the rotating shaft (21) of the passive valve (2) are positioned on two sides of the axis of the pipeline (1).
5. The piping structure for a dual mode muffler according to claim 2,
the bulges are streamline.
6. The piping structure for a dual mode muffler according to claim 2,
the bulge is formed by the fact that the outer wall of the pipeline (1) is sunken towards the inner part of the pipeline.
7. The piping structure for a dual mode muffler according to claim 2,
the bulge is a bulge structure additionally arranged on the inner wall of the pipeline (1).
8. Piping structure for a double mode muffler according to any of claims 2-7, characterized in that the passive valve (2) comprises:
valve block (22), valve block (22) through the spring axle with rotation axis (21) are connected, rotation axis (21) with pipeline (1) are connected.
9. A double mode muffler characterized by having the pipe structure for a double mode muffler as set forth in any one of claims 1 to 8.
10. A vehicle having the dual mode muffler of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920672280.9U CN210118188U (en) | 2019-05-10 | 2019-05-10 | Pipeline structure for dual-mode muffler, dual-mode muffler and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920672280.9U CN210118188U (en) | 2019-05-10 | 2019-05-10 | Pipeline structure for dual-mode muffler, dual-mode muffler and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210118188U true CN210118188U (en) | 2020-02-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920672280.9U Active CN210118188U (en) | 2019-05-10 | 2019-05-10 | Pipeline structure for dual-mode muffler, dual-mode muffler and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210118188U (en) |
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2019
- 2019-05-10 CN CN201920672280.9U patent/CN210118188U/en active Active
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