CN117646666B - Air flow noise reduction silencer for motor equipment - Google Patents
Air flow noise reduction silencer for motor equipment Download PDFInfo
- Publication number
- CN117646666B CN117646666B CN202410121326.3A CN202410121326A CN117646666B CN 117646666 B CN117646666 B CN 117646666B CN 202410121326 A CN202410121326 A CN 202410121326A CN 117646666 B CN117646666 B CN 117646666B
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- annular
- muffler
- pipe
- silencing cotton
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000009467 reduction Effects 0.000 title claims abstract description 31
- 230000003584 silencer Effects 0.000 title description 5
- 229920000742 Cotton Polymers 0.000 claims abstract description 77
- 239000007921 spray Substances 0.000 claims abstract description 10
- 230000003313 weakening effect Effects 0.000 claims abstract description 9
- 230000030279 gene silencing Effects 0.000 claims description 86
- 230000007246 mechanism Effects 0.000 claims description 45
- 230000001603 reducing effect Effects 0.000 claims description 8
- 238000003491 array Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 32
- 239000002912 waste gas Substances 0.000 abstract description 6
- 239000000428 dust Substances 0.000 abstract description 5
- 230000009471 action Effects 0.000 description 13
- 238000002485 combustion reaction Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 239000011358 absorbing material Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Exhaust Silencers (AREA)
Abstract
The invention discloses an airflow noise reduction muffler for motor equipment, which relates to the technical field of motor equipment noise reduction and comprises two symmetrically arranged muffler pipes. This kind of a muffler of making an uproar falls in air current for motor equipment, high-energy waste gas gets into the shunt tubes through the intake pipe, divide into two air current that flow direction is opposite, the same size, get into two amortization intraductal respectively through two fixed pipes and through the return bend after the spray tube divide into the multistrand flow direction opposite, the same air current of size, and weaken each other, simultaneously, when the air current gets into in the amortization pipe, make it form rotatory air current, extension flow distance, absorb the noise through first amortization cotton etc. and, power when can utilizing the air current to flow, make first amortization cotton etc. reciprocate, form the shake effect, reduce adhesion such as dust, guarantee its absorbing effect to the noise, the air current after making an uproar is fallen offsets each other and weakens the back through the venthole and is discharged, can carry out automatic weakening again to the air current and handle, and then improve the effect of making an uproar.
Description
Technical Field
The invention relates to the technical field of noise reduction of motor equipment, in particular to an airflow noise reduction silencer for motor equipment.
Background
The mechanical equipment is one of mechanical equipment, has mobility, and is mainly used for transportation, farmland water conservancy, electric power engineering and the like. For example: aircraft, automobiles, tractors, motorcycles, etc. belong to motor-driven devices, and engines and internal combustion engines are core components of these devices, and in order to reduce exhaust noise of engines and internal combustion engines, it is necessary to use a muffler to reduce the noise of air flow.
However, the existing silencers are classified into a silencer employing an expanding and contracting exhaust flow passage according to the operation principle, and vibration of exhaust sound waves is reduced by causing a change in flow velocity; another main form is to use a labyrinth flow channel, and utilize the generated reflected wave to counteract the vibration of the acoustic wave; still, noise is reduced by using a sound absorbing material or a sound absorbing structure, but the noise reducing effect is not good enough when the noise reducing muffler is used, and dust or the like is easily adhered to the surface of the sound absorbing material when the noise is reduced by using the sound absorbing material, so that the noise reducing effect is also affected.
To this end, we propose an airflow noise reducing muffler for a motor vehicle.
Disclosure of Invention
The present invention aims to provide an airflow noise reducing muffler for a motor vehicle device, which solves the problems set forth in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a muffler falls in air current for motor equipment, includes the muffler pipe that two symmetries set up, two the tip fixedly connected with annular slab that the muffler pipe is relative, and the venthole that a plurality of arrays set up is seted up to the lateral wall of annular slab, two the other end fixedly connected with of muffler pipe two symmetries set up the fixed pipe, and the one end of fixed pipe runs through to in the muffler pipe, the lateral wall of muffler pipe is provided with the weakening mechanism that is used for carrying out the reposition of redundant personnel to the air current and weakens, and the other end fixedly connected with shunt tubes of two fixed pipes, the lateral wall fixedly connected with intake pipe of shunt tubes, and the tip that two muffler pipes are relative is connected with the rubber slab that two symmetries set up through canceling release mechanical system, each the lateral wall of rubber slab is connected with the annular cover through rotation of slewing mechanism, and the inside of annular cover is provided with sound absorbing mechanism, and be provided with the guiding mechanism that is used for carrying out rotatory air current in the annular cover, the rotation of annular cover drives through actuating mechanism, and the removal of annular cover promotes through pushing mechanism.
Preferably, the weakening mechanism comprises a plurality of bent pipes fixedly connected to the side walls of the fixed pipes in an array mode, and the other ends of the bent pipes are fixedly connected with spray pipes.
Preferably, the sound absorbing mechanism comprises first silencing cotton which is fixedly inserted into the inner side wall of the annular cover and is annularly arranged, one end, close to the fixed pipe, of the first silencing cotton is fixedly connected with second silencing cotton which is circularly arranged, and the second silencing cotton is sleeved on the side wall of the fixed pipe.
Preferably, the flow guiding mechanism comprises a third silencing cotton which is fixedly connected to the inner side wall of the first silencing cotton and is spirally arranged, and a supporting rod is fixedly inserted in the center position of the third silencing cotton.
Preferably, the reset mechanism comprises two symmetrically arranged T-shaped guide rods inserted into the side walls of the rubber plates, one end of each T-shaped guide rod is fixed with the end part of the silencing pipe, and the side walls of the T-shaped guide rods are sleeved with springs.
Preferably, the rotating mechanism comprises an annular guide groove formed in the end portion of the annular cover, the side wall of the rubber plate is fixedly connected with an annular guide rail, and the annular guide groove slides on the side wall of the annular guide rail.
Preferably, the driving mechanism comprises a plurality of blades fixedly connected to the inner side wall of each annular cover and arranged in an array, and the first silencing cotton is fixedly sleeved on the side wall of each blade.
Preferably, the pushing mechanism comprises two symmetrically arranged rubber blocks fixedly connected to opposite ends of the two silencing pipes, each rubber block is in an L-shaped arrangement, the end portions of the annular covers are fixedly connected with a plurality of L-shaped rods arranged in an array, the other ends of the L-shaped rods are fixedly connected with pushing pins, round corners are arranged at the end portions of the pushing pins, and the round corners slide on the side walls of the rubber blocks.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, by arranging the weakening mechanism and the like, when high-energy waste gas is discharged from an engine or an internal combustion engine and enters the shunt tube through the air inlet pipe to be shunted, the high-energy waste gas is divided into two air flows with opposite flow directions and the same size, and the two air flows respectively enter the two silencing tubes to be subjected to noise reduction treatment through the two fixing pipes, and the air flows after noise reduction are mutually counteracted and weakened at the annular plate and then are discharged through the air outlet holes, so that the air flows can be automatically weakened, the noise reduction effect is better, and when the air flows in the fixing pipes enter the silencing tubes, the air flows can flow out through the spray pipe after passing through the bent pipe, so that the air flows passing through the fixing pipes are divided into a plurality of air flows with opposite flow directions and the same size, and the air flows are mutually weakened, and the noise reduction effect is better.
According to the invention, by arranging the flow guide mechanism and the like, when air flow enters the silencing pipe, the air flow is rotated under the action of the third silencing cotton and the supporting rod to form rotary air flow, so that the flowing distance is prolonged, meanwhile, under the action of the first silencing cotton, the second silencing cotton and the third silencing cotton, a good noise absorption effect can be achieved, so that the noise reduction effect is better, and due to the rotation inertia, negative pressure in the closing process of an engine or an exhaust valve of an internal combustion engine can be generated, the emission is improved, and the noise reduction effect can be improved.
According to the invention, by arranging the driving mechanism, the pushing mechanism and the like, when air flows through the third silencing cotton, the air flows generate rotary air flows and impact on the blades, so that the annular cover rotates, meanwhile, the annular guide groove slides on the side wall of the annular guide rail, the annular cover rotates to drive the first silencing cotton, the second silencing cotton and the third silencing cotton to synchronously rotate, meanwhile, when the annular cover rotates, the L-shaped rod is driven to synchronously rotate, when the round corners of the pushing pins are abutted against the side wall of the rubber block, the annular cover and the rubber plate are pushed to move in a direction away from the end part of the silencing pipe, meanwhile, the spring is compressed, and when the round corners pass over the side wall of the rubber block, the annular cover and the rubber plate can move and reset under the action of the spring, so that the annular cover reciprocates, the first silencing cotton, the second silencing cotton and the third silencing cotton are driven to reciprocate, a shaking effect is formed by power generated when the air flows, dust and the like is reduced to adhere on the first silencing cotton, the second silencing cotton and the third silencing cotton, the noise-reducing effect is guaranteed, and the noise-reducing effect is further improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic cross-sectional view of a silencer duct according to the present invention;
FIG. 3 is a schematic view of the position of the reset mechanism according to the present invention;
FIG. 4 is an enlarged view of FIG. 1 at A;
FIG. 5 is an enlarged view at B in FIG. 2;
FIG. 6 is an enlarged view of FIG. 3 at C;
FIG. 7 is an enlarged view of FIG. 6 at D;
fig. 8 is an enlarged view of fig. 7 at E.
In the figure: 1. a muffler pipe; 2. a blade; 301. bending the pipe; 302. a spray pipe; 401. a T-shaped guide rod; 402. a spring; 501. an annular guide groove; 502. an annular guide rail; 601. a rubber block; 602. an L-shaped rod; 603. pushing the pin; 604. round corners; 701. a third noise reduction cotton; 702. a support rod; 801. a first noise-reducing cotton; 802. a second noise reduction cotton; 9. a rubber plate; 10. an annular cover; 11. an annular plate; 12. an air outlet hole; 13. a fixed tube; 14. a shunt; 15. and an air inlet pipe.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-8, an airflow noise reduction muffler for a motor-driven device in the drawing includes two symmetrically arranged muffler pipes 1, annular plates 11 are fixedly connected to opposite ends of the two muffler pipes 1, a plurality of air outlet holes 12 arranged in an array are formed on the side walls of the annular plates 11, when exhaust gas in the muffler pipes 1 is discharged through the plurality of air outlet holes 12 arranged in an annular shape, a flow dividing effect can be achieved, a flow velocity of the exhaust gas is reduced, a noise reduction effect is achieved, two symmetrically arranged fixing pipes 13 are fixedly connected to the other ends of the two muffler pipes 1, one ends of the fixing pipes 13 penetrate into the muffler pipes 1, a weakening mechanism for weakening and dividing airflow is arranged on the side walls of the muffler pipes 1, shunt pipes 14 are fixedly connected to the other ends of the two fixing pipes 13, an air inlet pipe 15 is fixedly connected to the side walls of the shunt pipes 14, the opposite ends of the two silencing pipes 1 are connected with two symmetrically arranged rubber plates 9 through a reset mechanism, the side wall of each rubber plate 9 is rotationally connected with an annular cover 10 through a rotating mechanism, the annular cover 10 is rotationally connected with the inner side wall of the silencing pipe 1, a sound absorbing mechanism is arranged in the annular cover 10, a flow guiding mechanism used for rotating airflow is arranged in the annular cover 10, the rotation of the annular cover 10 is driven by a driving mechanism, the movement of the annular cover 10 is pushed by a pushing mechanism, when high-energy waste gas is discharged by an engine or an internal combustion engine and then enters a shunt pipe 14 through an air inlet pipe 15 to be shunted, the high-energy waste gas is divided into two airflows with opposite flow directions and same size, the airflows enter the two silencing pipes 1 through two fixed pipes 13 respectively to be subjected to noise reduction treatment, when the airflows enter the silencing pipes 1, the airflows flow out through a spray pipe 302 after passing through an elbow 301, the air flow passing through the fixed pipe 13 is divided into a plurality of air flows with opposite flow directions and same size, and the air flows are mutually weakened, meanwhile, when the air flows enter the silencing pipe 1, the air flows form rotary air flow, the flowing distance is lengthened, the air flows can have good noise absorption effect under the action of the first silencing cotton 801, the second silencing cotton 802 and the third silencing cotton 701, so that the noise reduction effect is better, the power during the air flow can be utilized, the first silencing cotton 801, the second silencing cotton 802 and the third silencing cotton 701 can reciprocate to form shaking effect, the adhesion of dust and the like is reduced, the noise absorption effect is guaranteed, the noise reduction effect is further improved, the air flows after noise reduction are mutually counteracted and weakened at the annular plate 11 and then are discharged through the air outlet 12, the air flows can be automatically weakened again, and the noise reduction effect is improved.
The weakening mechanism comprises a plurality of bent pipes 301 fixedly connected to the side walls of the fixed pipes 13 in an array mode, the other ends of the bent pipes 301 are fixedly connected with spray pipes 302, the spray pipes 302 are arranged in a pair of opposite mode, when air flows in the fixed pipes 13 enter the silencing pipe 1, the air flows flow out through the spray pipes 302 after passing through the bent pipes 301, and therefore the air flows passing through the fixed pipes 13 are divided into a plurality of air flows with opposite flow directions and the same size, the air flows are weakened mutually, and therefore the noise reduction effect is better.
The sound absorbing mechanism is including fixed first amortization cotton 801 that is the annular setting of inserting at annular cover 10 inside wall, and the one end fixedly connected with circular setting's of first amortization cotton 801 being close to fixed pipe 13 second amortization cotton 802, and the second amortization cotton 802 cover is established at fixed pipe 13's lateral wall, under first amortization cotton 801 and the effect of second amortization cotton 802, can play fine absorption effect to the noise to make noise reduction effect better.
The guiding mechanism comprises a third silencing cotton 701 fixedly connected to the inner side wall of the first silencing cotton 801 and spirally arranged, a supporting rod 702 is fixedly inserted into the central position of the third silencing cotton 701, when air flows into the silencing pipe 1, under the action of the third silencing cotton 701 and the supporting rod 702, the air flows are enabled to rotate to form rotary air flows, the flowing distance is lengthened, meanwhile, under the action of the first silencing cotton 801, the second silencing cotton 802 and the third silencing cotton 701, the noise can be well absorbed, accordingly the noise reduction effect is better, and due to the fact that the rotating inertia, negative pressure in the closing process of an engine or an exhaust valve of an internal combustion engine can be generated, emission is improved, and the noise reduction effect can be improved.
The reset mechanism comprises two symmetrically arranged T-shaped guide rods 401 inserted into the side walls of the rubber plates 9, one end of each T-shaped guide rod 401 is fixed with the end of the silencing pipe 1, and springs 402 are sleeved on the side walls of the T-shaped guide rods 401 to guide and reset the movement of the rubber plates 9.
The rotating mechanism comprises an annular guide groove 501 arranged at the end part of the annular cover 10, the side wall of the rubber plate 9 is fixedly connected with an annular guide rail 502, the annular guide groove 501 slides on the side wall of the annular guide rail 502, and the rotating mechanism plays a role in guiding and limiting the rotation of the annular cover 10.
The driving mechanism comprises a plurality of blades 2 fixedly connected to the inner side walls of the annular covers 10 and arranged in an array, and the first silencing cotton 801 is fixedly sleeved on the side walls of the blades 2, generates rotating air flow when the air flow passes through the third silencing cotton 701 and impacts on the blades 2, so that the annular covers 10 rotate.
The pushing mechanism comprises two symmetrically arranged rubber blocks 601 fixedly connected to opposite ends of two silencing pipes 1, the rubber blocks 601 are arranged in an L shape, the end parts of all annular covers 10 are fixedly connected with L-shaped rods 602 arranged in an array, the other ends of the L-shaped rods 602 are fixedly connected with pushing pins 603, round corners 604 are arranged at the end parts of the pushing pins 603, the round corners 604 slide on the side walls of the rubber blocks 601, the rotation of the annular cover 10 drives first silencing cotton 801, second silencing cotton 802 and third silencing cotton 701 to synchronously rotate, meanwhile, when the annular cover 10 rotates, the L-shaped rods 602 are driven to synchronously rotate, when the round corners 604 of the pushing pins 603 are propped against the side walls of the rubber blocks 601, the annular cover 10 and the rubber plates 9 are pushed to move away from the end parts of the silencing pipes 1, meanwhile, springs 402 are compressed, when the round corners 604 cross the side walls of the rubber blocks 601, the annular cover 10 and the rubber plates 9 can move under the action of the springs 402 to reset, so that the annular cover 10 reciprocates, and the first silencing cotton 801, the second silencing cotton 802 and the third silencing cotton 701 are driven to reciprocate.
When the muffler is used, high-energy waste gas is discharged from an engine or an internal combustion engine and then enters the shunt tube 14 through the air inlet tube 15 to be shunted, and is divided into two air flows with opposite flow directions and the same size, when the air flow in the fixed tube 13 enters the muffler 1, the air flows out through the spray tube 302 after passing through the bent tube 301, so that the air flow passing through the fixed tube 13 is divided into a plurality of air flows with opposite flow directions and the same size, and the air flows are weakened mutually, and further the noise reduction effect is better;
when the air flow enters the silencing pipe 1, the air flow rotates under the action of the third silencing cotton 701 and the supporting rod 702 to form a rotating air flow, the flowing distance is prolonged, meanwhile, under the action of the first silencing cotton 801, the second silencing cotton 802 and the third silencing cotton 701, a good noise absorption effect can be achieved, so that the noise reduction effect is better, and due to the rotating inertia, negative pressure in the closing process of an engine or an exhaust valve of an internal combustion engine can be generated, so that the emission is improved, and the noise reduction effect can be improved;
when the air flow passes through the third silencing cotton 701, the air flow generates rotary air flow and impacts on the blades 2, so that the annular cover 10 rotates, meanwhile, the annular guide groove 501 slides on the side wall of the annular guide rail 502, the annular cover 10 rotates to drive the first silencing cotton 801, the second silencing cotton 802 and the third silencing cotton 701 to synchronously rotate, meanwhile, when the annular cover 10 rotates, the L-shaped rod 602 is driven to synchronously rotate, when the round angle 604 of the pushing pin 603 abuts against the side wall of the rubber block 601, the annular cover 10 and the rubber plate 9 are pushed to move in a direction away from the end part of the silencing pipe 1, meanwhile, the spring 402 is compressed, when the round angle 604 passes over the side wall of the rubber block 601, the annular cover 10 and the rubber plate 9 can move and reset under the action of the spring 402, so that the annular cover 10 reciprocates, the first silencing cotton 801, the second silencing cotton 802 and the third silencing cotton 701 are driven to reciprocate, and the dust and the like are adhered on the first silencing cotton 801, the second silencing cotton 802 and the third silencing cotton 701 by the power generated by the air flow to form a shaking effect, and the noise absorption effect on the silencing cotton is guaranteed;
and moreover, the air flow after noise reduction is mutually offset and weakened at the annular plate 11 and then is discharged through the air outlet hole 12, and the air flow can be automatically weakened, so that the noise reduction effect is better.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides an air current noise reduction muffler for motor equipment, includes two symmetrical arrangement's muffler pipe (1), its characterized in that, two the tip fixedly connected with annular slab (11) that muffler pipe (1) are relative, and the lateral wall of annular slab (11) has seted up ventholes (12) that a plurality of arrays set up, two the other end fixedly connected with two symmetrical arrangement's fixed pipe (13) of muffler pipe (1), and the one end of fixed pipe (13) runs through to muffler pipe (1), the lateral wall of muffler pipe (1) is provided with the weakening mechanism that is used for carrying out the reposition of redundant personnel to weaken the air current, and the other end fixedly connected with shunt tube (14) of two fixed pipe (13), the lateral wall fixedly connected with intake pipe (15) of shunt tube (14), and the tip that two muffler pipes (1) are relative is connected with two symmetrically arranged rubber slab (9) through canceling release mechanism, the lateral wall of each rubber slab (9) is connected with annular cover (10) through rotating mechanism rotation, and annular cover (10) and the inside wall of muffler pipe (1) are rotated and are connected with, annular cover (10) and the inside the annular cover (10) is provided with sound absorbing mechanism (10) and is used for carrying out the rotation through annular cover (10) that drives the rotation mechanism that drives in the annular cover (10);
the resetting mechanism comprises two symmetrically arranged T-shaped guide rods (401) which are inserted into the side walls of the rubber plates (9), one end of each T-shaped guide rod (401) is fixed with the end part of the silencing pipe (1), and the side walls of the T-shaped guide rods (401) are sleeved with springs (402);
the rotating mechanism comprises an annular guide groove (501) formed at the end part of the annular cover (10), an annular guide rail (502) is fixedly connected to the side wall of the rubber plate (9), and the annular guide groove (501) slides on the side wall of the annular guide rail (502);
the driving mechanism comprises a plurality of blades (2) fixedly connected to the inner side walls of the annular covers (10) and arranged in an array manner, and first silencing cotton (801) is fixedly sleeved on the side walls of the blades (2);
the pushing mechanism comprises two symmetrically arranged rubber blocks (601) fixedly connected to opposite ends of two silencing pipes (1), each rubber block (601) is in an L-shaped arrangement, the end parts of the annular covers (10) are fixedly connected with L-shaped rods (602) arranged in multiple arrays, the other ends of the L-shaped rods (602) are fixedly connected with pushing pins (603), round corners (604) are arranged at the end parts of the pushing pins (603), when airflow impacts on the blades (2), the annular covers (10) are driven to rotate, and when the pushing pins (603) pass through the rubber blocks (601), the round corners (604) slide on the side walls of the rubber blocks (601).
2. An airflow noise reducing muffler for a motor vehicle according to claim 1, wherein: the weakening mechanism comprises a plurality of bent pipes (301) fixedly connected to the side walls of the fixed pipes (13) in an array mode, and the other ends of the bent pipes (301) are fixedly connected with spray pipes (302).
3. An airflow noise reducing muffler for a motor vehicle according to claim 1, wherein: the sound absorbing mechanism comprises first silencing cotton (801) which is fixedly inserted into the inner side wall of the annular cover (10) and is annularly arranged, one end, close to the fixed pipe (13), of the first silencing cotton (801) is fixedly connected with second silencing cotton (802) which is circularly arranged, and the second silencing cotton (802) is sleeved on the side wall of the fixed pipe (13).
4. A gas flow noise reducing muffler for a motor vehicle as defined in claim 3, wherein: the flow guiding mechanism comprises third silencing cotton (701) which is fixedly connected to the inner side wall of the first silencing cotton (801) and is spirally arranged, and a supporting rod (702) is fixedly inserted into the central position of the third silencing cotton (701).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410121326.3A CN117646666B (en) | 2024-01-29 | 2024-01-29 | Air flow noise reduction silencer for motor equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410121326.3A CN117646666B (en) | 2024-01-29 | 2024-01-29 | Air flow noise reduction silencer for motor equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117646666A CN117646666A (en) | 2024-03-05 |
| CN117646666B true CN117646666B (en) | 2024-04-12 |
Family
ID=90049945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410121326.3A Active CN117646666B (en) | 2024-01-29 | 2024-01-29 | Air flow noise reduction silencer for motor equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117646666B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191226560A (en) * | 1912-11-19 | 1913-11-19 | Claude Charles Atkinson | Improvements in Silencers for the Exhaust of Internal Combustion Engines. |
| RU171331U1 (en) * | 2016-12-16 | 2017-05-29 | Сергей Георгиевич Смирнов | REACTIVE NOISE SILENCER |
| CN210714808U (en) * | 2019-09-12 | 2020-06-09 | 扬州万事达金属制品有限公司 | Helical blade structure for inner wall of silencing barrel |
| CN210799105U (en) * | 2019-09-29 | 2020-06-19 | 江苏中孚动力产业链有限公司 | Low-noise internal combustion engine |
| CN216198404U (en) * | 2021-10-28 | 2022-04-05 | 成都之和环保科技有限公司 | Low-noise environment-friendly silencer |
| CN217233623U (en) * | 2022-05-11 | 2022-08-19 | 徐州智卓环保科技有限公司 | Energy-concerving and environment-protective non-road mobile machinery's tail gas cleanup unit |
| CN115653710A (en) * | 2022-12-29 | 2023-01-31 | 中国石油大学(华东) | Airflow silencer for engine and working method |
-
2024
- 2024-01-29 CN CN202410121326.3A patent/CN117646666B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191226560A (en) * | 1912-11-19 | 1913-11-19 | Claude Charles Atkinson | Improvements in Silencers for the Exhaust of Internal Combustion Engines. |
| RU171331U1 (en) * | 2016-12-16 | 2017-05-29 | Сергей Георгиевич Смирнов | REACTIVE NOISE SILENCER |
| CN210714808U (en) * | 2019-09-12 | 2020-06-09 | 扬州万事达金属制品有限公司 | Helical blade structure for inner wall of silencing barrel |
| CN210799105U (en) * | 2019-09-29 | 2020-06-19 | 江苏中孚动力产业链有限公司 | Low-noise internal combustion engine |
| CN216198404U (en) * | 2021-10-28 | 2022-04-05 | 成都之和环保科技有限公司 | Low-noise environment-friendly silencer |
| CN217233623U (en) * | 2022-05-11 | 2022-08-19 | 徐州智卓环保科技有限公司 | Energy-concerving and environment-protective non-road mobile machinery's tail gas cleanup unit |
| CN115653710A (en) * | 2022-12-29 | 2023-01-31 | 中国石油大学(华东) | Airflow silencer for engine and working method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117646666A (en) | 2024-03-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2351775C2 (en) | Device to release vehicle waste gases | |
| CN101218419B (en) | Method of and apparatus for exhausting internal combustion engines | |
| KR100766806B1 (en) | Exhaust gas-discharging device of vehicle | |
| CN102213122A (en) | Energy-saving silencer | |
| CN103850769B (en) | A kind of automotive muffler controlling reproduced air-flow noise | |
| CN117646666B (en) | Air flow noise reduction silencer for motor equipment | |
| JP7465558B2 (en) | Exhaust promotion device for internal combustion engine and method for improving exhaust system | |
| CN210663316U (en) | Green type vehicle air conditioner muffler | |
| CN102207014A (en) | Buffer type silencer | |
| CN104863681A (en) | Exhaust pipe silencing method | |
| CN213478777U (en) | Turbocharger with noise reduction device | |
| CN215369986U (en) | Silencer for ship chimney | |
| CN205503250U (en) | A device of making an uproar falls for automobile engine | |
| CN202971345U (en) | Silencer for fan of dust collector | |
| CN108386253B (en) | Loader amortization mechanism | |
| CN219197435U (en) | Noise elimination and noise reduction mechanism for gasoline generating set | |
| CN217719020U (en) | Silencer for noise pollution control | |
| CN220303089U (en) | Device for eliminating air duct noise | |
| CN217440141U (en) | Noise-reduction smoke guide device for vehicle-mounted firewood square cabin | |
| CN220869495U (en) | Automobile oil tank exhaust silencer capable of reducing tail gas pollution | |
| CN211474228U (en) | Mounting assembly for silencer of automobile exhaust pipe | |
| CN220667661U (en) | Automobile pipeline silencing assembly | |
| CN220248456U (en) | Noise-reducing turbocharger | |
| KR100464711B1 (en) | Exhaust for automobile | |
| CN211924304U (en) | Exhaust pipe with tail gas filtering function for automobile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |