CN204627718U - A kind of motor silencer - Google Patents
A kind of motor silencer Download PDFInfo
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- CN204627718U CN204627718U CN201520287856.1U CN201520287856U CN204627718U CN 204627718 U CN204627718 U CN 204627718U CN 201520287856 U CN201520287856 U CN 201520287856U CN 204627718 U CN204627718 U CN 204627718U
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- air outlet
- sound insulation
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- insulation board
- sound
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- 230000003584 silencer Effects 0.000 title claims 3
- 238000009413 insulation Methods 0.000 claims abstract description 43
- 230000000694 effects Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
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- Exhaust Silencers (AREA)
Abstract
本实用新型公开了一种发动机消音器，是由壳体、进气口和出气口组成，是壳体内设有隔音罩，隔音罩的两端分别与进气口和出气口相通，隔音罩内设有带有锥形出气孔的隔音板，隔音板上锥形出气孔靠近进气口侧的直径大于靠近出气口侧的直径，隔音罩设有锥形出气孔，其中隔音板前部隔音罩上的锥形出气孔的内侧直径大于外侧直径，隔音板后部隔音罩上的锥形出气孔的内侧直径小于外侧直径，本实用新型具有降低发动机废气速度、防止消音器共振产生噪音、多级消音、结构简单、气体阻力小、提高发动机动力、使用效果好的特点。
The utility model discloses an engine muffler, which is composed of a casing, an air inlet and an air outlet. The casing is provided with a soundproof cover, and the two ends of the soundproof cover communicate with the air inlet and the air outlet respectively. A sound insulation board with a tapered air outlet is provided. The diameter of the tapered air outlet on the sound insulation board near the air inlet is larger than the diameter near the air outlet. The sound insulation cover is provided with a tapered air outlet. The inner diameter of the tapered air outlet is larger than the outer diameter, and the inner diameter of the tapered air outlet on the sound insulation cover at the rear of the sound insulation board is smaller than the outer diameter. The utility model has the functions of reducing the exhaust gas speed of the engine, preventing the resonance of the muffler from generating noise, and multi-stage noise reduction. , Simple structure, small gas resistance, improved engine power, good use effect.
Description
技术领域 technical field
本实用新型属于发动机排气技术领域，尤其是涉及一种发动机消音器。 The utility model belongs to the technical field of engine exhaust, in particular to an engine muffler.
背景技术 Background technique
随着人生活水平的提高，机动车的社会保有量逐渐增多，发动机是机动车的必需部件，发动机工作过程中需要通过消音器排放气体，现有的发动机的消音器，一般是采用进气管和排气管都深入到消音器内交错，进气管和排气管上设有气孔，这种结构能够达到一定的消音效果，但是其排气阻力较大，影响发动机的动力输出，同时油耗和排污量也随之提高，随着对发动机噪音限制的要求的提高，这种结构的消音器已不能满足人们的需要。 With the improvement of people's living standards, the social ownership of motor vehicles is gradually increasing. The engine is an essential part of the motor vehicle. During the working process of the engine, the gas needs to be discharged through the muffler. The existing muffler of the engine generally adopts the intake pipe and The exhaust pipes go deep into the muffler and are staggered. There are air holes on the intake pipe and exhaust pipe. This structure can achieve a certain noise reduction effect, but its exhaust resistance is relatively large, which affects the power output of the engine. At the same time, fuel consumption and sewage discharge The volume also increases thereupon, and along with the raising of the requirement to engine noise restriction, the muffler of this structure can't satisfy people's needs any more.
发明内容 Contents of the invention
本实用新型的目的在于改进已有技术的不足而提供一种降低发动机废气速度、防止消音器共振产生噪音、多级消音、结构简单、气体阻力小、提高发动机动力、使用效果好的发动机消音器。 The purpose of the utility model is to improve the deficiencies of the prior art and provide an engine muffler that reduces the speed of the exhaust gas of the engine, prevents the resonance of the muffler from generating noise, multi-stage muffler, simple structure, small gas resistance, improves engine power, and has good use effect. .
本实用新型的目的是这样实现的，一种发动机消音器，是由壳体、进气口和出气口组成，其特点是壳体内设有隔音罩，隔音罩的两端分别与进气口和出气口相通，隔音罩内设有带有锥形出气孔的隔音板，隔音板上锥形出气孔靠近进气口侧的直径大于靠近出气口侧的直径，隔音罩设有锥形出气孔，其中隔音板前部隔音罩上的锥形出气孔的内侧直径大于外侧直径，隔音板后部隔音罩上的锥形出气孔的内侧直径小于外侧直径。 The purpose of this utility model is achieved in that a kind of engine muffler is made up of shell, air inlet and air outlet, and its characteristic is to be provided with soundproof cover in the shell, and the two ends of soundproof cover are connected with air inlet and air outlet respectively. The air outlets are connected, and there is a sound insulation board with a conical air outlet in the sound insulation cover. The diameter of the conical air outlet on the sound insulation board near the air inlet is larger than the diameter near the air outlet. The sound insulation cover is provided with a tapered air outlet. Wherein the inner diameter of the tapered air outlet on the sound insulation cover at the front part of the sound insulation board is greater than the outer diameter, and the inner diameter of the tapered air outlet on the sound insulation cover at the rear part of the sound insulation board is smaller than the outer diameter.
为了进一步实现本实用新型的目的，可以是带有锥形出气孔的消音板将壳体与隔音罩间形成的空腔分为两部分，消音板上锥形出气孔靠近进气口侧的直径大于靠近出气口侧的直径。 In order to further realize the purpose of the utility model, the cavity formed between the housing and the sound insulation cover can be divided into two parts by a sound-absorbing plate with a conical air outlet, and the diameter of the conical air-out hole on the sound-absorbing plate is close to the air inlet side. larger than the diameter on the side near the air outlet.
本实用新型与已有技术相比具有以下显著特点和积极效果：本实用新型是壳体内设有隔音罩，隔音罩的两端分别与进气口和出气口相通，隔音罩内设有带有锥形出气孔的隔音板，隔音板上锥形出气孔靠近进气口侧的直径大于靠近出气口侧的直径，隔音罩设有锥形出气孔，其中隔音板前部隔音罩上的锥形出气孔的内侧直径大于外侧直径，隔音板后部隔音罩上的锥形出气孔的内侧直径小于外侧直径，这样发动机排出的废气一部分通过隔音罩上的气孔减速排到壳体与隔音罩间，这样避免了高速废气直接撞击壳体产生的噪音，另一部分废气在隔音板的阻挡下，速度大大降低，降低了高速废气直接排到空气中的噪音，锥形出气孔的开口方向根据气流的流动方向设置，进气口的直径大于出气口的直径，便于气流通过和大幅流速，气体对流互相的作用，避免高速废气猛烈撞击震动产生的噪音；带有锥形出气孔的将消音板将壳体与隔音罩间形成的空腔分为两部分，消音板上锥形出气孔靠近进气口侧的直径大于靠近出气口侧的直径，由于进气口端的废气速度最高，采用这种结构可以将高速的气体分流减速，进一步避免了撞击产生的噪音。 Compared with the prior art, the utility model has the following remarkable features and positive effects: the utility model is provided with a soundproof cover in the housing, the two ends of the soundproof cover communicate with the air inlet and the air outlet respectively, and the soundproof cover is provided with a The sound insulation board with conical air outlet, the diameter of the conical air outlet on the sound insulation board near the air inlet side is larger than the diameter near the air outlet side, and the sound insulation cover is provided with a tapered air outlet, wherein the conical outlet on the sound insulation cover at the front of the sound insulation board The inner diameter of the air hole is larger than the outer diameter, and the inner diameter of the tapered air outlet on the sound insulation cover at the rear of the sound insulation board is smaller than the outer diameter, so that part of the exhaust gas discharged from the engine is decelerated through the air hole on the sound insulation cover and discharged between the shell and the sound insulation cover. It avoids the noise caused by high-speed exhaust gas directly hitting the shell, and the other part of exhaust gas is blocked by the sound insulation board, and the speed is greatly reduced, which reduces the noise of high-speed exhaust gas directly discharged into the air. The opening direction of the tapered air outlet depends on the flow direction of the airflow Setting, the diameter of the air inlet is larger than the diameter of the air outlet, which is convenient for the airflow to pass through and the interaction between the large flow rate and the gas convection to avoid the noise caused by the violent impact and vibration of the high-speed exhaust gas; the sound-absorbing plate with the tapered air outlet connects the shell with the The cavity formed between the soundproof covers is divided into two parts. The diameter of the tapered air outlet on the sound absorbing plate near the air inlet is larger than the diameter near the air outlet. Since the exhaust gas velocity at the air inlet is the highest, this structure can The gas shunt decelerates, which further avoids the noise generated by the impact.
附图说明 Description of drawings
下面结合附图和实施例对本实用新型作进一步详细说明。 Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail.
图1为本实用新型的一种结构示意图。 Fig. 1 is a kind of structural representation of the utility model.
图2为本实用新型的另一种结构示意图。 Fig. 2 is another structural schematic diagram of the utility model.
具体实施方案 specific implementation plan
实施例1，一种发动机消音器，参照图1，一种发动机消音器，是在壳体1内设有隔音罩5，隔音罩5的两端分别与进气口2和出气口3相通，隔音罩5内设有带有锥形出气孔4的隔音板6，隔音板6上锥形出气孔4靠近进气口2侧的直径大于靠近出气口3侧的直径，隔音罩5设有锥形出气孔4，其中隔音板6前部隔音罩5上的锥形出气孔4的内侧直径大于外侧直径，隔音板6后部隔音罩5上的锥形出气孔4的内侧直径小于外侧直径，这构成了本实用新型的一种结构。 Embodiment 1, a kind of engine muffler, with reference to Fig. 1, a kind of engine muffler, be to be provided with sound insulation cover 5 in housing 1, the two ends of sound insulation cover 5 communicate with air inlet 2 and air outlet 3 respectively, The sound insulation cover 5 is provided with a sound insulation board 6 with a tapered air outlet 4, the diameter of the tapered air outlet 4 on the sound insulation board 6 near the air inlet 2 side is greater than the diameter near the air outlet 3 side, and the sound insulation cover 5 is provided with a cone Shaped air outlet 4, wherein the inner diameter of the tapered air outlet 4 on the sound insulation cover 5 at the front of the sound insulation board 6 is greater than the outer diameter, and the inner diameter of the tapered air outlet 4 on the sound insulation cover 5 at the rear of the sound insulation board 6 is smaller than the outer diameter, This constitutes a structure of the present utility model.
实施例2，一种发动机消音器，参照图2，是在实施例1的基础上，是带有锥形出气孔4的消音板8将壳体1与隔音罩5间形成的空腔分为两部分，消音板8上的锥形出气孔4靠近进气口2侧的直径大于靠近出气口3侧的直径。其他与实施例1完全相同。 Embodiment 2, a kind of engine muffler, with reference to Fig. 2, is on the basis of embodiment 1, is that the cavity that forms between housing 1 and soundproof cover 5 is divided into Two parts, the diameter of the tapered air outlet hole 4 on the muffler plate 8 near the air inlet 2 is larger than the diameter near the air outlet 3 side. Others are identical to Example 1.
使用本实用新型时，将本实用新型的进气口2与发动机的排气口连通即可，发动机产生的高速废气，通过进气口2进入到隔音罩5内，一部分穿过隔音板6的锥形出气孔4，另一部分通过隔音罩5上的锥形气孔4进入壳体1与隔音罩5间，通过带锥形出气孔4的消音板7减速，然后再回到隔音罩5内，到达出气口3时两部分气体汇合，然后排出，由于气体经过减速，在排出时速度已经很低，因而基本上没有噪音。 When using the utility model, it is enough to connect the air inlet 2 of the utility model with the exhaust port of the engine, and the high-speed exhaust gas produced by the engine enters in the sound insulation cover 5 through the air inlet 2, and a part passes through the sound insulation board 6 The conical air outlet 4, the other part enters the space between the shell 1 and the sound insulation cover 5 through the conical air hole 4 on the sound insulation cover 5, decelerates through the sound-absorbing plate 7 with the conical air outlet 4, and then returns to the sound insulation cover 5, When the gas reaches the gas outlet 3, the two parts of the gas are combined and then discharged. Since the gas has been decelerated, the speed of the gas is already very low when it is discharged, so there is basically no noise.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520287856.1U CN204627718U (en) | 2015-05-07 | 2015-05-07 | A kind of motor silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520287856.1U CN204627718U (en) | 2015-05-07 | 2015-05-07 | A kind of motor silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204627718U true CN204627718U (en) | 2015-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520287856.1U Expired - Fee Related CN204627718U (en) | 2015-05-07 | 2015-05-07 | A kind of motor silencer |
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| Country | Link |
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| CN (1) | CN204627718U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106884696A (en) * | 2017-04-06 | 2017-06-23 | 桐乡市洲泉振兴五金塑料制品厂 | A kind of silencing net of noise eliminator of motorcycle |
| CN108843435A (en) * | 2018-06-12 | 2018-11-20 | 蒙城县傲尊电子科技有限公司 | A kind of potent noise reduction automobile exhaust pipe |
| CN109210011A (en) * | 2018-10-20 | 2019-01-15 | 广东艾高装备科技有限公司 | A kind of low noise magnetic levitation centrifugal air compressor |
| CN111120332A (en) * | 2018-10-30 | 2020-05-08 | 安徽美芝制冷设备有限公司 | Silencer and rotary compressor with same |
-
2015
- 2015-05-07 CN CN201520287856.1U patent/CN204627718U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106884696A (en) * | 2017-04-06 | 2017-06-23 | 桐乡市洲泉振兴五金塑料制品厂 | A kind of silencing net of noise eliminator of motorcycle |
| CN108843435A (en) * | 2018-06-12 | 2018-11-20 | 蒙城县傲尊电子科技有限公司 | A kind of potent noise reduction automobile exhaust pipe |
| CN109210011A (en) * | 2018-10-20 | 2019-01-15 | 广东艾高装备科技有限公司 | A kind of low noise magnetic levitation centrifugal air compressor |
| CN111120332A (en) * | 2018-10-30 | 2020-05-08 | 安徽美芝制冷设备有限公司 | Silencer and rotary compressor with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150909 Termination date: 20160507 |
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| CF01 | Termination of patent right due to non-payment of annual fee |