CN111637622A - Silencer for air conditioning system - Google Patents
Silencer for air conditioning system Download PDFInfo
- Publication number
- CN111637622A CN111637622A CN202010186811.0A CN202010186811A CN111637622A CN 111637622 A CN111637622 A CN 111637622A CN 202010186811 A CN202010186811 A CN 202010186811A CN 111637622 A CN111637622 A CN 111637622A
- Authority
- CN
- China
- Prior art keywords
- shell
- silencer
- conditioning system
- end cover
- silencing
- 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.)
- Pending
Links
- 230000003584 silencer Effects 0.000 title claims abstract description 32
- 238000004378 air conditioning Methods 0.000 title claims abstract description 23
- 230000030279 gene silencing Effects 0.000 claims abstract description 30
- 229920000742 Cotton Polymers 0.000 claims abstract description 29
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 9
- 239000010949 copper Substances 0.000 claims description 9
- 238000010521 absorption reaction Methods 0.000 claims description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 238000005192 partition Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 239000012530 fluid Substances 0.000 abstract description 37
- 230000003139 buffering effect Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 5
- 238000009413 insulation Methods 0.000 description 5
- 238000005381 potential energy Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000001743 silencing effect Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000006837 decompression Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000035772 mutation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/033—Noise absorbers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/033—Noise absorbers
- F16L55/0336—Noise absorbers by means of sound-absorbing materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
- F24F2013/242—Sound-absorbing material
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention relates to a silencer for an air conditioning system, which comprises a shell, wherein the left end and the right end of the shell are respectively connected with a left end cover and a right end cover through screws, one side of the left end cover is provided with an air inlet, the inner cavity of the air inlet is fixedly inserted and sealed with an air inlet pipe, one end of the air inlet pipe penetrating through the inner cavity of the shell is fixedly connected with a silencing ball in a penetrating way, fluid with noise is discharged from the air outlet through the air outlet arranged on the surface of the silencing ball, the air outlet can carry out primary buffering and pressure reduction on the fluid with noise, the exhaust pipeline and the silencing piece can carry out multiple buffering and pressure reduction on the fluid with noise through the arrangement of the exhaust pipeline and the silencing piece, the silencing performance of the silencer can be improved, the noise in the fluid can be effectively absorbed in multiple ways through the arrangement of first sound-absorbing cotton, the second sound-absorbing cotton and the third sound-, the heat insulating performance of the case can be improved by providing the heat insulating layer on the outer side surface of the case.
Description
Technical Field
The invention relates to a silencer for an air conditioning system, and belongs to the technical field of air conditioning silencers.
Background
The common silencing measure of air conditioner noise is that a silencer is added on a four-way valve component of an air conditioner to eliminate high-frequency noise and low-frequency noise in an air pipe, the silencer is a common accessory of a household air conditioner and a central air conditioner and is generally used for controlling aerodynamic noise, acoustic impedance mismatching is generated by utilizing the acoustic reflection action of an acoustic performance mutation position in a pipeline and by means of sudden expansion, contraction or side connection of a resonant cavity of a pipeline interface, acoustic impedance mismatching is generated, acoustic waves with certain frequency are reflected, interfered and the like at the acoustic impedance mutation interface, so that the aim of silencing is achieved, the silencer is generally arranged on an inlet and an outlet of a rotor compressor or a scroll compressor or an airflow pipeline, airflow is allowed to pass smoothly, and sound energy is effectively prevented or weakened from being transmitted outwards, while the existing air conditioner silencer generally comprises a main body, the middle part of the main body is a hollow, the both ends of main part are equipped with the connecting pipe, and this kind of muffler can alleviate the noise to a certain extent, but still is not ideal enough through sponge noise reduction effect alone, consequently needs further improvement.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the existing defects, and provide a silencer for an air conditioning system, which has good silencing effect and convenient use, wherein an inner shell, an outer shell, a left end cover and a right end cover are made of stainless steel, an air inlet pipe and an air outlet pipe are made of red copper, the volume of a shell in an actual product accounts for most parts, and the price of steel is obviously lower than that of the red copper, so that the cost of the silencer can be effectively reduced, a fluid with noise flows into an inner cavity of the shell from the air inlet pipe, the fluid with the noise expands and contracts, the flowing noise of the fluid is reduced by converting partial sound energy into potential energy, the fluid after noise reduction flows out from the air outlet pipe, the noise reduction effect is good, the fluid with the noise is discharged from the air outlet hole by arranging the air outlet hole on the surface of a silencing ball, the air outlet hole can buffer and reduce the pressure of the fluid with the noise for one time, and an exhaust, exhaust duct and amortization piece can carry out buffering decompression many times to the fluid that has the noise, can improve the amortization performance of muffler, inhale the sound cotton through setting up the first sound cotton of inhaling, the sound cotton is inhaled to the second, the sound cotton can carry out multiple effective absorption to the noise in the fluid to the third, can improve the amortization performance of casing through setting up the amortization sponge, can improve the thermal insulation performance of casing through set up the heat insulation layer at casing outside surface, the left end lid passes through the screw fixation at the casing both ends with the right-hand member lid, convenient dismantlement, the part of convenient inside to the casing is maintained the installation, can effectively solve the problem in the background art.
In order to solve the technical problems, the invention provides the following technical scheme:
a silencer for an air conditioning system comprises a shell, wherein the left end and the right end of the shell are respectively connected with a left end cover and a right end cover through screws, an air inlet is arranged on one side of the left end cover, an air inlet pipe is fixedly and alternately arranged in a sealed manner in an inner cavity of the air inlet, one end of the air inlet pipe penetrating through the inner cavity of the shell is fixedly connected with a silencing ball, air outlet holes are uniformly formed in the outer side surface of the silencing ball, an air outlet pipe is fixedly and alternately arranged in the inner cavity of the air outlet, a silencing piece is fixedly arranged in the middle of the inner cavity of the shell and comprises a cylindrical barrel, a funnel-shaped inlet and a funnel-shaped outlet are respectively and fixedly arranged at the left end and the right end of the cylindrical barrel, first sound absorbing cotton is fixedly arranged on the inner wall of the inner cavity, the casing includes the inner shell, the inner shell outside is through pillar fixedly connected with shell, just it has the amortization sponge to fill between shell and the inner shell.
Further, a heat insulating layer is fixedly arranged on the outer side surface of the shell.
Further, the inner shell, the outer shell, the left end cover and the right end cover are all made of stainless steel.
Further, the air inlet pipe and the air outlet pipe are both made of red copper.
Further, the sound-absorbing ball comprises a spherical shell, and second sound-absorbing cotton is fixedly arranged on the inner wall of the spherical shell.
Furthermore, saw tooth protrusions are fixedly arranged on the surface of the first sound absorption cotton at equal intervals.
Furthermore, the joints of the shell and the left end cover and the right end cover are provided with sealing gaskets.
Furthermore, third sound-absorbing cotton is symmetrically and fixedly arranged on the surfaces of the two sides of the partition board.
Further, the exhaust pipeline adopts a PVC spiral silencing pipe.
The invention has the beneficial effects that: the invention relates to a silencer for an air conditioning system, which has good silencing effect and convenient use, wherein an inner shell, an outer shell, a left end cover and a right end cover are made of stainless steel, an air inlet pipe and an air outlet pipe are made of red copper, the volume of the shell in an actual product accounts for most parts, and the price of steel is obviously lower than that of the red copper, so that the cost of the silencer can be effectively reduced, a fluid with noise flows into an inner cavity of the shell from the air inlet pipe, the fluid with the noise expands and contracts, the flowing noise of the fluid is reduced by converting partial sound energy into potential energy, the fluid after noise reduction flows out from the air outlet pipe, the noise reduction effect is good, the fluid with the noise is discharged from the air outlet hole by arranging the air outlet hole, the air outlet hole can buffer the fluid with the noise for one time, and the exhaust pipeline and a silencing piece can buffer and reduce the pressure of the fluid with the noise for many times, can improve the amortization performance of muffler, inhale the sound cotton through setting up the first sound cotton of inhaling, the second, the sound cotton is inhaled to the third and noise in can the convection cell carries out multiple effective absorption, can improve the amortization performance of casing through setting up the amortization sponge, can improve the thermal insulation performance of casing through set up the heat insulation layer at casing outside surface, left end lid and right-hand member lid pass through the screw fixation at the casing both ends, convenient dismantlement, the convenient part to casing inside is maintained the installation.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
Fig. 1 is a sectional view of a silencer for an air conditioning system according to the present invention.
Fig. 2 is a front view of a silencer for an air conditioning system according to the present invention.
Fig. 3 is a sectional view of a muffler ball of a muffler for an air conditioning system according to the present invention.
Fig. 4 is a sectional view of a silencer for an air conditioning system according to the present invention.
Fig. 5 is a sectional view of a housing of a silencer for an air conditioning system according to the present invention.
Reference numbers in the figures: 1. a housing; 2. a left end cap; 3. a right end cap; 4. an air inlet; 5. an air inlet pipe; 6. a sound-deadening ball; 7. an air outlet; 8. an air outlet; 9. an air outlet pipe; 10. a noise reducing member; 11. a cylindrical barrel; 12. a funnel-shaped inlet; 13. a funnel-shaped outlet; 14. a first sound absorbing cotton; 15. a partition plate; 16. an exhaust duct; 17. an inner shell; 18. a pillar; 19. a housing; 20. a sound-deadening sponge; 21. a heat insulating layer; 22. a spherical shell; 23. the second sound-absorbing cotton; 24. the sawtooth is convex; 25. a gasket; 26. and the third sound absorption cotton.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
The first embodiment is as follows:
as shown in fig. 1-5, a silencer for an air conditioning system includes a casing 1, a left end cap 2 and a right end cap 3 are respectively connected to the left and right ends of the casing 1 through screws, the left end cap 2 and the right end cap 3 are fixed to the two ends of the casing 1 through screws, and are convenient to detach, and parts inside the casing 1 are convenient to maintain and mount, an air inlet 4 is arranged on one side of the left end cap 2, an air inlet pipe 5 is fixedly inserted into an inner cavity of the air inlet 4 in a sealing manner, and a fluid with noise flows into an inner cavity of the casing 1 through the air inlet pipe 5, so that the fluid with noise expands and contracts, the flowing noise of the fluid is reduced by converting partial sound energy into potential energy, the fluid after noise reduction flows out from an air outlet pipe 9, the noise reduction effect is good, the air inlet pipe 5 penetrates through one end of the inner cavity of the casing 1 and is fixedly connected with a noise reduction, the surface of the silencing ball 6 is provided with the air outlet 7, a fluid with noise is discharged from the air outlet 7, the air outlet 7 can buffer and decompress the fluid with noise for one time, one side of the right end cover 3 is provided with the air outlet 8, the inner cavity of the air outlet 8 is fixedly and interpenetrated with the air outlet pipe 9 in a sealing way, the middle part of the inner cavity of the shell 1 is fixedly provided with the silencing piece 10, the fluid with noise flows through the silencing piece 10 by the silencing piece 10, the silencing piece 10 can buffer and decompress the fluid with noise, a good silencing effect can be achieved, the silencing piece 10 comprises a cylindrical barrel 11, the left end and the right end of the cylindrical barrel 11 are respectively and fixedly provided with a funnel-shaped inlet 12 and a funnel-shaped outlet 13, the inner wall of the inner cavity of the cylindrical barrel 11 is fixedly provided with first sound-absorbing cotton 14, the two sides of the silencing piece 10 are symmetrically and fixedly provided with partition plates 15 in the inner cavity of, through setting up exhaust duct 16 and amortization piece 10, exhaust duct 16 and amortization piece 10 can carry out buffering decompression many times to the fluid that has the noise, can improve the amortization performance of muffler, casing 1 includes inner shell 17, the inner shell 17 outside is through pillar 18 fixedly connected with shell 19, just it has amortization sponge 20 to fill between shell 19 and the inner shell 17, can improve casing 1's amortization performance through setting up amortization sponge 20.
In this embodiment, the outer surface of the casing 1 is fixedly provided with a heat insulating layer 21, the heat insulating performance of the casing 1 can be improved by arranging the heat insulating layer 21 on the outer surface of the casing 1, the inner casing 17, the outer casing 19, the left end cover 2 and the right end cover 3 are all made of stainless steel, the air inlet pipe 5 and the air outlet pipe 9 are all made of red copper, the inner casing 17, the outer casing 19, the left end cover 2 and the right end cover 3 are made of stainless steel, the air inlet pipe 5 and the air outlet pipe 9 are made of red copper, the volume of the casing 1 occupies most parts in an actual product, and the price of steel is obviously lower than that of red copper, so that the cost of the silencer can be effectively reduced, the silencing ball 6 comprises a spherical outer casing 22, the inner wall of the spherical outer casing 22 is fixedly provided with a second sound-absorbing cotton 23, the surface equidistant sawtooth protrusions 24 are fixedly arranged on the first sound-absorbing cotton 14, the fixed third that is equipped with of baffle 15 both sides surface symmetry inhales the sound cotton 26, inhales the sound cotton 23, the sound cotton 26 can carry out multiple effective absorption to the noise in the fluid through setting up the first sound cotton 14 of inhaling, second sound, third.
Example two:
as shown in fig. 1, the exhaust pipe 16 is a PVC spiral silencing pipe, and the exhaust pipe 16 is a PVC spiral silencing pipe, which can further improve the silencing performance of the silencer.
The working principle of the invention is as follows: the left end cover 2 and the right end cover 3 are fixed at two ends of the shell 1 through screws, which is convenient to disassemble and convenient to maintain and install parts inside the shell 1, a fluid with noise flows into an inner cavity of the shell 1 from the air inlet pipe 5, so that the fluid with noise expands and contracts, the flowing noise of the fluid is reduced by converting partial sound energy into potential energy, the fluid after noise reduction is discharged from the air outlet pipe 9, the noise reduction effect is good, the fluid with noise is discharged from the air outlet hole 7 by arranging the air outlet hole 7 on the surface of the noise reduction ball 6, the air outlet hole 7 can buffer and reduce the pressure of the fluid with noise for one time, the exhaust pipe 16 and the noise reduction piece 10 are arranged, the exhaust pipe 16 and the noise reduction piece 10 can buffer and reduce the pressure of the fluid with noise for multiple times, the noise reduction performance of the silencer can be improved, the noise reduction performance of the shell 1 can be improved by arranging the heat insulation layer 21 on the outer side surface of the shell 1, through setting up first sound cotton 14, second sound cotton 23, the cotton 26 of inhaling of third sound can carry out multiple effective absorption to the noise in the fluid, exhaust duct 16 adopts the PVC spiral hush pipe can further improve the amortization performance of muffler.
The above embodiments are preferred embodiments of the present invention, and those skilled in the art can make variations and modifications to the above embodiments, therefore, the present invention is not limited to the above embodiments, and any obvious improvements, substitutions or modifications made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (9)
1. A silencer for an air conditioning system, comprising a housing (1), characterized in that: the silencer is characterized in that a left end cover (2) and a right end cover (3) are respectively connected to the left end and the right end of a shell (1) through screws, an air inlet (4) is arranged on one side of the left end cover (2), an air inlet pipe (5) is fixedly inserted into the air inlet (4) in a sealed manner, the air inlet pipe (5) is fixedly inserted into one end of the inner cavity of the shell (1) in a penetrating manner and is fixedly connected with a silencing ball (6), air outlet holes (7) are uniformly formed in the outer side surface of the silencing ball (6), an air outlet (8) is arranged on one side of the right end cover (3), an air outlet pipe (9) is fixedly inserted into the air outlet (8) in a sealed manner, a silencing piece (10) is fixedly arranged in the middle of the inner cavity of the shell (1), the silencing piece (10) comprises a cylindrical barrel (11), a funnel-shaped inlet (12) and a funnel-, silencing piece (10) both sides are located casing (1) inner chamber symmetry fixed baffle (15) of being equipped with, equidistant fixed interlude is equipped with exhaust duct (16) on baffle (15), casing (1) includes inner shell (17), pillar (18) fixedly connected with shell (19) are passed through in the inner shell (17) outside, just it has amortization sponge (20) to fill between shell (19) and inner shell (17).
2. A silencer for an air conditioning system according to claim 1, wherein: and a heat insulating layer (21) is fixedly arranged on the outer side surface of the shell (1).
3. A silencer for an air conditioning system according to claim 1, wherein: the inner shell (17), the outer shell (19), the left end cover (2) and the right end cover (3) are all made of stainless steel.
4. A silencer for an air conditioning system according to claim 1, wherein: the air inlet pipe (5) and the air outlet pipe (9) are both made of red copper.
5. A silencer for an air conditioning system according to claim 1, wherein: the sound-absorbing ball (6) comprises a spherical shell (22), and second sound-absorbing cotton (23) is fixedly arranged on the inner wall of the spherical shell (22).
6. A silencer for an air conditioning system according to claim 1, wherein: sawtooth protrusions (24) are fixedly arranged on the surface of the first sound absorption cotton (14) at equal intervals.
7. A silencer for an air conditioning system according to claim 1, wherein: the shell (1) is provided with a sealing gasket (25) at the joint of the left end cover (2) and the right end cover (3).
8. A silencer for an air conditioning system according to claim 1, wherein: and third sound-absorbing cotton (26) is symmetrically and fixedly arranged on the surfaces of the two sides of the partition plate (15).
9. A silencer for an air conditioning system according to claim 1, wherein: the exhaust pipeline (16) adopts a PVC spiral silencing pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010186811.0A CN111637622A (en) | 2020-06-09 | 2020-06-09 | Silencer for air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010186811.0A CN111637622A (en) | 2020-06-09 | 2020-06-09 | Silencer for air conditioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111637622A true CN111637622A (en) | 2020-09-08 |
Family
ID=72329530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010186811.0A Pending CN111637622A (en) | 2020-06-09 | 2020-06-09 | Silencer for air conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111637622A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112503287A (en) * | 2020-11-27 | 2021-03-16 | 江苏盐阜电站阀门辅机制造有限公司 | Silencer for temperature and pressure reducing valve |
| CN112984265A (en) * | 2021-03-16 | 2021-06-18 | 南京曼式声学技术有限公司 | Sectional type resistive ventilation silencer and assembly method thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1251981A (en) * | 1997-03-07 | 2000-05-03 | 美国技术公司 | Sound reduction method and system for jet engines |
| CN103603709A (en) * | 2013-12-02 | 2014-02-26 | 天津豪记科技有限公司 | Silencer |
| CN203532004U (en) * | 2013-08-27 | 2014-04-09 | 常州华尔澜工具有限公司 | Improved diesel engine silencer |
| CN204375412U (en) * | 2014-12-29 | 2015-06-03 | 浙江天晨胶业股份有限公司 | A kind of air silencer |
| CN105134337A (en) * | 2015-08-17 | 2015-12-09 | 天津市神驰汽车零部件有限公司 | Automobile exhaust muffler |
| US10196261B2 (en) * | 2017-03-08 | 2019-02-05 | Butterfly Network, Inc. | Microfabricated ultrasonic transducers and related apparatus and methods |
| CN109973222A (en) * | 2019-03-06 | 2019-07-05 | 西北工业大学 | A pulsating jet engine with effective noise reduction |
| CN209561000U (en) * | 2018-12-29 | 2019-10-29 | 重庆广亚机械制造有限公司 | A kind of silencer of good muffling effect |
| CN210378462U (en) * | 2019-06-12 | 2020-04-21 | 新邵县金龙纸业有限责任公司 | Silencer |
-
2020
- 2020-06-09 CN CN202010186811.0A patent/CN111637622A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1251981A (en) * | 1997-03-07 | 2000-05-03 | 美国技术公司 | Sound reduction method and system for jet engines |
| CN203532004U (en) * | 2013-08-27 | 2014-04-09 | 常州华尔澜工具有限公司 | Improved diesel engine silencer |
| CN103603709A (en) * | 2013-12-02 | 2014-02-26 | 天津豪记科技有限公司 | Silencer |
| CN204375412U (en) * | 2014-12-29 | 2015-06-03 | 浙江天晨胶业股份有限公司 | A kind of air silencer |
| CN105134337A (en) * | 2015-08-17 | 2015-12-09 | 天津市神驰汽车零部件有限公司 | Automobile exhaust muffler |
| US10196261B2 (en) * | 2017-03-08 | 2019-02-05 | Butterfly Network, Inc. | Microfabricated ultrasonic transducers and related apparatus and methods |
| CN209561000U (en) * | 2018-12-29 | 2019-10-29 | 重庆广亚机械制造有限公司 | A kind of silencer of good muffling effect |
| CN109973222A (en) * | 2019-03-06 | 2019-07-05 | 西北工业大学 | A pulsating jet engine with effective noise reduction |
| CN210378462U (en) * | 2019-06-12 | 2020-04-21 | 新邵县金龙纸业有限责任公司 | Silencer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112503287A (en) * | 2020-11-27 | 2021-03-16 | 江苏盐阜电站阀门辅机制造有限公司 | Silencer for temperature and pressure reducing valve |
| CN112503287B (en) * | 2020-11-27 | 2023-06-27 | 江苏盐阜电站阀门辅机制造有限公司 | Muffler for temperature and pressure reducing valve |
| CN112984265A (en) * | 2021-03-16 | 2021-06-18 | 南京曼式声学技术有限公司 | Sectional type resistive ventilation silencer and assembly method thereof |
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Application publication date: 20200908 |