CN210218240U - Integrated booster pressure shell structure that has hindering nature muffler - Google Patents
Integrated booster pressure shell structure that has hindering nature muffler Download PDFInfo
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- CN210218240U CN210218240U CN201920824897.8U CN201920824897U CN210218240U CN 210218240 U CN210218240 U CN 210218240U CN 201920824897 U CN201920824897 U CN 201920824897U CN 210218240 U CN210218240 U CN 210218240U
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Abstract
The utility model relates to an integrated booster pressure shell structure that has hindering nature muffler, including pressure shell inlet/outlet pipe, pressure shell inlet/outlet pipe including the air connecting pipe and the hush pipe that the axial was arranged, the inside coaxial arrangement of hush pipe have porous cylindrical plate, the outside of porous cylindrical plate and hush pipe's inside wall between form the amortization inner chamber, the inside packing of this amortization inner chamber has the metal fiber layer, the air inlet outlet department lateral wall at hush pipe tip on the embedding install the split ring that is used for restricting porous cylindrical plate and removes. The utility model discloses can install in the import and the export of booster, set up the amortization inner chamber inside the muffler to fill the metal fiber layer, make up the amortization with the perforated plate, can obviously reduce air current radiation noise.
Description
Technical Field
The utility model relates to a turbo charger field especially relates to an integrated booster pressure shell structure that has hindering nature muffler.
Background
In the automobile industry, with the stricter requirements on energy conservation and emission reduction, the engine matched with the turbocharger is more and more popular. With the advance of light weight and miniaturization of the engine, people have higher and higher requirements on low-speed torque and high power of the engine, so that the noise problem of the turbocharger is more and more prominent, and when the turbocharger runs, the noise radiation at the outlet of the gas compressor is very obvious, so that the design of a reliable and effective compression silencer becomes very necessary.
In the prior art, 2 modes are generally adopted for solving the problem of noise at the outlet of a supercharger compressor:
1. a broadband resistant silencer is added at the outlet of the pressure shell, and the silencer is formed by combining a plurality of resonance cavities, has larger volume, is not beneficial to the arrangement of the whole vehicle and has higher cost. The sound absorption effect on high-frequency noise is not good enough.
2. The impedance composite silencer is also large in size and high in cost, sound-absorbing cotton is generally used as a sound-absorbing material of the silencer, the silencer cannot resist high temperature, the silencer is generally used at the inlet of the compressor, and the silencer cannot be used at the outlet of the compressor due to the fact that the temperature of the outlet of the compressor is high.
And the silencer that the air current of present booster was installed in the air current inlet and outlet department adopts different structures, and the cost is higher, needs to design a silencer that the import and export all can be used.
Disclosure of Invention
The utility model aims to solve the technical problem that a booster pressure shell structure that integrated has hindering nature muffler is provided, can install in the import and the export of booster, at the inside amortization inner chamber that sets up of muffler to fill the metal fiber layer, make up the amortization with the perforated plate, can obviously reduce the air current radiation noise.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides an integrated booster pressure shell structure that has hindering nature muffler, including pressure shell inlet/outlet pipe, pressure shell inlet/outlet pipe including airflow connection pipe and the hush pipe of axial arrangement, the inside coaxial arrangement of hush pipe have porous cylindrical plate, the outside of porous cylindrical plate and hush pipe between the inside wall form the amortization inner chamber, the inside packing of this amortization inner chamber has the metal fiber layer, the airflow inlet outlet department lateral wall at hush pipe end on the embedding install the split ring that is used for restricting porous cylindrical plate and removes.
As right technical scheme a technical scheme's supplement, the outside of porous cylindricality board arranged the one deck and prevented that metal fiber from passing the armor layer of porous cylindricality board.
The metal fiber layer is arranged into a single-layer or multi-layer laminated structure.
Furthermore, the protective layer is a microporous thin plate wrapped on the outer side of the porous cylindrical plate.
Furthermore, the inner side wall of the porous cylindrical plate is axially flush with the inner side wall of the airflow connecting pipe.
Has the advantages that: the utility model relates to a supercharger pressure shell structure integrated with a resistive silencer, which can be arranged at the inlet and the outlet of a supercharger, can be integrated with the pressure shell of the supercharger after being arranged, is internally provided with a silencing inner cavity and filled with a metal fiber layer, and combines a metal fiber porous material and a perforated plate into a resonance sound absorption composite structure to have obvious silencing effect on medium and high frequency noise after high pressure, and can obviously reduce airflow radiation noise; the detachable connection pipe that has the end cover is adopted to structural, and the diameter that makes the hush pipe can be done is bigger, can place the metal fiber layer that the number of piles is more, and the metal fiber layer can be constituteed into gradient composite metal fiber porous material with the metal fiber layer of the different porosity of multilayer or different fiber diameter in addition, has better sound absorption effect, and can reduce porous fiber material's thickness, further reduces the muffler volume, has fine spreading value.
Drawings
FIG. 1 is a front view structural diagram of the present invention;
FIG. 2 is a front view of the structure of the half-section of the present invention;
fig. 3 is a test chart of the transmission loss of the silencer according to the present invention.
The figure is as follows: 1. a press shell inlet/outlet pipe; 2. an airflow connecting pipe; 3. a sound-deadening tube; 4. a protective surface layer; 5. a split washer; 6. a porous cylindrical plate; 7. a metal fiber layer; 8. and an airflow inlet and an airflow outlet.
Detailed Description
The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.
As shown in fig. 1-2, the technical solution adopted by the utility model for solving the technical problem is: the utility model provides an integrated booster pressure shell structure that has hindering nature muffler, including pressure shell inlet/outlet pipe 1, pressure shell inlet/outlet pipe 1 including the air connecting pipe 2 and the hush pipe 3 of axial arrangement, the inside coaxial arrangement of hush pipe 3 have porous column plate 6, the outside of porous column plate 6 and hush pipe 3 the inside wall between form the amortization inner chamber, the inside packing of this amortization inner chamber has metal fiber layer 7, the air current of hush pipe 3 tip import and export 8 lateral walls on the embedding install the split washer 5 that is used for restricting porous column plate 6 and removes.
The outside of porous cylindricality board 6 arranged the one deck and prevented that metal fiber from passing the armor layer 4 of porous cylindricality board 6, armor layer 4 mainly is in order to prevent that metal fiber from droing from the amortization inner chamber, influencing the automotive reliability.
The metal fiber layer 7 is arranged in a single-layer or multi-layer laminated structure.
The protective layer 4 is a microporous thin plate wrapped outside the porous cylindrical plate 6, and the microporous thin plate prevents metal fibers from passing through on the premise of not obstructing airflow.
The inner side wall of the porous cylindrical plate 6 is axially flush with the inner side wall of the airflow connecting pipe 2, so that airflow can pass more smoothly.
When the silencer is used, one end of the airflow connecting pipe 2 is inserted into an air inlet or an air outlet of a pressure shell of the supercharger, airflow enters the pressure shell inlet/outlet pipe 1 from the airflow connecting pipe 2, noise of high-temperature waste gas can be absorbed when the airflow passes through the silencer pipe 3, and the application of noise with different frequencies can be achieved by optimizing the combination of porous plates with different porosity, wire diameter, material thickness and the like of metal fibers and different perforation rates.
As an embodiment of the present invention:
this patent muffler structure can be through filling length, the thickness that changes inner chamber metal fiber, metal fiber's material, fiber diameter, the porosity that metal fiber filled, the muffling frequency and the noise cancelling effect of optimizing the muffler such as the perforation rate of perforated plate. The metal fiber layer is changed into a plurality of fiber layers with different parameters to be combined and superposed, so that the noise reduction effect is better; leave a layer air bed with metal fiber layer and muffler inner wall, can reduce cost, also have better promotion to the low frequency noise cancelling effect of centering.
Sample example:
the length is the axial length of the silencing inner cavity, and the thickness is the radial thickness of the silencing inner cavity.
3 appearance muffler normal atmospheric temperature transmission loss actual measurement as shown in fig. 3, the muffler of different parameters has different noise cancelling effect, wholly has better noise cancelling effect at the broad frequency.
The frequency of the impulse noise after being pressed is about 2200-3300 Hz, the noise is obvious in the state without the silencer, a mass production resistant silencer is additionally arranged, the frequency of the silencer is 2900 +/-100 Hz, and the noise is obviously improved. According to the real vehicle test, what the relative noise cancelling effect of muffler was relatively poor is sample 3, 2200 ~ 3300 Hz's noise cancelling effect has reached the resistance muffler effect of volume production state completely, and what the noise cancelling effect was better is sample 2, and noise cancelling effect is better, almost can eliminate the noise completely.
The actual measurement is carried out on the effect of the whole vehicle silencer for the broadband noise of about 3000-10000 Hz, the mass production resistant silencer is additionally arranged, the frequency of the silencer is 2900 +/-100 Hz, the high-frequency broadband noise is not obviously improved, and the sample piece 2 and the sample piece 3 obviously improve the whole broadband noise band of the noise of 3000-10000 Hz, so that the silencer has the obvious silencing effect on the broadband noise
The utility model discloses can install in the import and the export of booster, set up the amortization inner chamber inside the muffler to fill the metal fiber layer, make up the amortization with the perforated plate, can obviously reduce air current radiation noise.
Claims (5)
1. The utility model provides an integrated booster pressure shell structure that has resistive muffler, advances/outlet pipe (1) including the pressure shell, its characterized in that, pressure shell advance/outlet pipe (1) including air connecting pipe (2) and hush pipe (3) that the axial was arranged, the inside coaxial arrangement of hush pipe (3) have porous cylindrical plate (6), the outside of porous cylindrical plate (6) and the inside wall of hush pipe (3) between form the amortization inner chamber, the inside packing of this amortization inner chamber has metal fiber layer (7), the air current of hush pipe (3) tip exit (8) locate the lateral wall on the embedding install be used for restricting opening retaining ring (5) that porous cylindrical plate (6) removed.
2. The supercharger pressure shell structure integrated with a resistive muffler according to claim 1, wherein: and a protective layer (4) for preventing metal fibers from penetrating through the porous cylindrical plate (6) is arranged on the outer side of the porous cylindrical plate (6).
3. The supercharger pressure shell structure integrated with a resistive muffler according to claim 1, wherein: the metal fiber layer (7) is arranged into a single-layer or multi-layer laminated structure.
4. The supercharger pressure shell structure integrated with a resistive muffler according to claim 2, wherein: the protective layer (4) is a microporous thin plate wrapped outside the porous cylindrical plate (6).
5. The supercharger pressure shell structure integrated with a resistive muffler according to claim 1, wherein: the inner side wall of the porous cylindrical plate (6) is axially flush with the inner side wall of the airflow connecting pipe (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920824897.8U CN210218240U (en) | 2019-06-03 | 2019-06-03 | Integrated booster pressure shell structure that has hindering nature muffler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920824897.8U CN210218240U (en) | 2019-06-03 | 2019-06-03 | Integrated booster pressure shell structure that has hindering nature muffler |
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| CN210218240U true CN210218240U (en) | 2020-03-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159600A (en) * | 2019-06-03 | 2019-08-23 | 宁波丰沃涡轮增压***有限公司 | A kind of booster pressure shell structure being integrated with resistive muffler |
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2019
- 2019-06-03 CN CN201920824897.8U patent/CN210218240U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159600A (en) * | 2019-06-03 | 2019-08-23 | 宁波丰沃涡轮增压***有限公司 | A kind of booster pressure shell structure being integrated with resistive muffler |
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Address after: No. 433, xingciqi Road, Hangzhou Bay New District, Cixi City, Ningbo City, Zhejiang Province Patentee after: Ningbo Fengwo booster Technology Co.,Ltd. Address before: No. 433, xingciqi Road, Hangzhou Bay New District, Cixi City, Ningbo City, Zhejiang Province Patentee before: VOFON TURBO SYSTEMS (NINGBO) Co.,Ltd. |