CN106285883A - Noise reduction automobile exhaust pipe - Google Patents

Noise reduction automobile exhaust pipe Download PDF

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Publication number
CN106285883A
CN106285883A CN201610774506.7A CN201610774506A CN106285883A CN 106285883 A CN106285883 A CN 106285883A CN 201610774506 A CN201610774506 A CN 201610774506A CN 106285883 A CN106285883 A CN 106285883A
Authority
CN
China
Prior art keywords
noise reduction
cavity
reduction cavity
automobile exhaust
air inlet
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
Application number
CN201610774506.7A
Other languages
Chinese (zh)
Inventor
刘华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhu Evershine Automotive Component Co Ltd
Original Assignee
Wuhu Evershine Automotive Component Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wuhu Evershine Automotive Component Co Ltd filed Critical Wuhu Evershine Automotive Component Co Ltd
Priority to CN201610774506.7A priority Critical patent/CN106285883A/en
Publication of CN106285883A publication Critical patent/CN106285883A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/58—Measuring, controlling or regulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a non-planar shape
    • B32B1/08—Tubular products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/046—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/18—Layered products comprising a layer of metal comprising iron or steel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/005—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/046—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
    • F01N1/082—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling by passing the exhaust gases through porous members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
    • F01N1/10—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling in combination with sound-absorbing materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • F01N13/16—Selection of particular materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/58—Measuring, controlling or regulating
    • B29C2043/5816—Measuring, controlling or regulating temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/03—3 layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
    • B32B2307/102—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B32B2605/08—Cars

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Exhaust Silencers (AREA)

Abstract

The present invention provides a kind of noise reduction automobile exhaust pipe, the noise reduction cavity connected with described air inlet pipe including air inlet pipe and be located at the noise reducing plate of described noise reduction cavity outer wall；Described noise reduction cavity is gradually increased on airintake direction with the inner space of the side that described air inlet pipe connects；It is provided with diverter inside described noise reduction cavity；Described diverter is provided with several sub-runner；Described diverter side is provided with hemisphere face inner bag；Described hemisphere face inner bag is provided with several through hole；The cavity wall of described noise reduction cavity includes stainless steel layer, froth bed and ceramic layer the most successively；Simple in construction, is arranged rationally, and cost of manufacture is low, effectively vehicle exhaust can be carried out noise reduction process.

Description

Noise reduction automobile exhaust pipe
Technical field
The present invention relates to auto industry technical field, particularly relate to a kind of noise reduction automobile exhaust pipe.
Background technology
Along with the progress of science and technology, the raising of people's living standard, increasing automobile occurs in daily life In the middle of, but the waste gas of automobile exhaust pipe and noise puzzlement become a great problem.
Automobile exhaust pipe is one of vitals in automobile exhaust system, and the usual only one of which of existing automobile exhaust pipe is arranged Gas is responsible for, but aerofluxus supervisor does not generally have good decrease of noise functions.Therefore, it is necessary to provide a kind of noise reduction automobile exhaust pipe, To solve the problems referred to above.
It addition, acoustical cotton of the prior art, no matter it is plank, mineral wool, or the artificial inorganic that glass fiber is made is fine The other materials such as vinylon and cotton blend, all have their limitation, there is the shortcomings such as pollution environment, harmful, sound-absorbing effect is bad.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of noise reduction automobile exhaust pipe, to solve existing automobile exhaust pipe The problem without good decrease of noise functions.Meanwhile, present invention also offers a kind of effective acoustical cotton of noise reduction automobile exhaust and Preparation method.
For solving above-mentioned technical problem, the technical solution used in the present invention is:
A kind of noise reduction automobile exhaust pipe, the noise reduction cavity connected with described air inlet pipe including air inlet pipe and be located at described noise reduction cavity The noise reducing plate of outer wall；Described noise reduction cavity is gradually increased on airintake direction with the inner space of the side that described air inlet pipe connects； It is provided with diverter inside described noise reduction cavity；Described diverter is provided with several sub-runner；Described diverter side is provided with hemisphere face Inner bag；Described hemisphere face inner bag is provided with several through hole；The cavity wall of described noise reduction cavity includes stainless steel layer, bubble the most successively Foam layer and ceramic layer.
The inwall of described noise reduction cavity end is provided with acoustical cotton.
Described noise reducing plate is connected to described noise reduction cavity outer wall by connecting plate.
The effective acoustical cotton of noise reduction automobile exhaust, by 40% epoxy resin, 45% polyether polyol DMN-3050,5% diethanol Amine, 5%1,4-butanediol, 2% IVE and the 3%N-tert-butyl group-2 benzothiazole sulfenamide are made.
The preparation method of the effective acoustical cotton of noise reduction automobile exhaust, step is as follows:
1), by the mixed material A of epoxy resin, diethanolamine and BDO addition agitator mix homogeneously, adjust constant Material temperature 25 DEG C, regulation agitator speed to 3000r/min；
2), polyether polyol DMN-3050, IVE and the N-tert-butyl group-2 benzo of 25 DEG C will be preheated to respectively Thiazolesulfenamide is poured in mixed material A successively, stirs and obtains mixed material B in 5 minutes；
3), by mixed material B pour in the acoustical cotton mould being preheated to 40 DEG C, the demoulding after 5 minutes, obtain acoustical cotton product.
Advantage for present invention with effect is:
1), the noise reduction automobile exhaust pipe of the present invention, the noise reduction cavity connected with described air inlet pipe including air inlet pipe and be located at described The noise reducing plate of noise reduction cavity outer wall；The inner space of the side that described noise reduction cavity connects with described air inlet pipe on airintake direction gradually Increase；It is provided with diverter inside described noise reduction cavity；Described diverter is provided with several sub-runner；Described diverter side is provided with half Sphere inner bag；Described hemisphere face inner bag is provided with several through hole；The cavity wall of described noise reduction cavity includes rustless steel the most successively Layer, froth bed and ceramic layer；Simple in construction, is arranged rationally, and cost of manufacture is low, effectively vehicle exhaust can be carried out noise reduction process.
2), the effective acoustical cotton of noise reduction automobile exhaust, sound absorbing capabilities is excellent, and absorb sound wide frequency range, it is possible to makes up undulation degree Material, the shortcoming of nonwoven cloth and plastic material, take into account weatherability and intensity simultaneously, and it is than tradition sound-absorbing material, up to 3 times with The performance of upper noise reduction sound-absorbing effect.
3), the preparation method of the effective acoustical cotton of noise reduction automobile exhaust, technique is simple, and raw material is cheap and easy to get, and production efficiency is high, Environmental sound.
Accompanying drawing explanation
The invention will be further described below in conjunction with the accompanying drawings:
Fig. 1 is the cross-sectional view of the noise reduction automobile exhaust pipe of the present invention；
Fig. 2 is the schematic diagram of the end face of the noise reduction automobile exhaust pipe of the present invention.
In figure: air inlet pipe 1, noise reduction cavity 2, diverter 3, inner bag 4, acoustical cotton 5, noise reducing plate 6, sub-runner 31, through hole 41, no Rust steel layer 21, froth bed 22, ceramic layer 23, connecting plate 61.
Detailed description of the invention
Embodiment 1
As shown in Figure 1 to Figure 2, the present invention provides a kind of noise reduction automobile exhaust pipe, the fall connected including air inlet pipe 1 with air inlet pipe 1 Making an uproar chamber 2 and be located at the noise reducing plate 6 of noise reduction cavity 2 outer wall, vehicle exhaust enters noise reduction cavity 2 from air inlet pipe 1 and carries out noise reduction.Noise reducing plate 6 are connected to noise reduction cavity 2 outer wall by connecting plate 61.
Specifically, the inner space of the side that noise reduction cavity 2 connects with air inlet pipe 1 is gradually increased on airintake direction so that The tail gas pressure entering noise reduction cavity 2 reduces, and reaches noise reduction purpose.
Further, noise reduction cavity 2 is internal is provided with diverter 3；Diverter 3 is provided with several sub-runner 31；By several shuntings Tail gas is shunted by road 31, further functions as the effect of noise reduction.Diverter 3 side is provided with hemisphere face inner bag 4；Hemisphere face inner bag 4 are provided with several through hole 41, and tail gas realizes shunting and noise reduction by several through holes 41 of hemisphere face inner bag 4.
Specifically, the cavity wall of noise reduction cavity 2 includes stainless steel layer 21, froth bed 22 and ceramic layer 23 the most successively, fall The inwall of chamber 2 end of making an uproar is provided with acoustical cotton 5, realizes decrease of noise functions further by the cooperation of noise reduction cavity 2 and acoustical cotton 5.
From above technical scheme, the noise reduction automobile exhaust pipe of the present invention, simple in construction, arrange rationally, cost of manufacture Low, effectively vehicle exhaust can be carried out noise reduction process.
Embodiment 2
The effective acoustical cotton of noise reduction automobile exhaust, by 40% epoxy resin, 45% polyether polyol DMN-3050,5% diethanolamine, 5% 1,4-butanediol, 2% IVE and the 3%N-tert-butyl group-2 benzothiazole sulfenamide are made.
Embodiment 3
The preparation method of the effective acoustical cotton of noise reduction automobile exhaust, step is as follows:
1), by the mixed material A of epoxy resin, diethanolamine and BDO addition agitator mix homogeneously, adjust constant Material temperature 25 DEG C, regulation agitator speed to 3000r/min；
2), polyether polyol DMN-3050, IVE and the N-tert-butyl group-2 benzo of 25 DEG C will be preheated to respectively Thiazolesulfenamide is poured in mixed material A successively, stirs and obtains mixed material B in 5 minutes；
3), by mixed material B pour in the acoustical cotton mould being preheated to 40 DEG C, the demoulding after 5 minutes, obtain acoustical cotton product.
The present invention is not limited to above-described embodiment, and embodiment is exemplary, it is intended to be used for explaining the present invention, and can not It is interpreted as limitation of the present invention.

Claims (3)

1. a noise reduction automobile exhaust pipe, it is characterised in that include the noise reduction cavity that air inlet pipe (1) connects with described air inlet pipe (1) And be located at the noise reducing plate (6) of described noise reduction cavity (2) outer wall (2)；Described noise reduction cavity (2) connect with described air inlet pipe (1) one The inner space of side is gradually increased on airintake direction；Described noise reduction cavity (2) is internal is provided with diverter (3)；Described diverter (3) It is provided with several sub-runner (31)；Described diverter (3) side is provided with hemisphere face inner bag (4)；Set on described hemisphere face inner bag (4) There is several through hole (41)；The cavity wall of described noise reduction cavity (2) includes stainless steel layer (21), froth bed (22) and pottery the most successively Enamel coating (23).
Noise reduction automobile exhaust pipe the most according to claim 1, it is characterised in that the inwall of described noise reduction cavity (2) end sets There is acoustical cotton (5).
Noise reduction automobile exhaust pipe the most according to claim 2, it is characterised in that described noise reducing plate (6) passes through connecting plate (61) described noise reduction cavity (2) outer wall it is connected to.
CN201610774506.7A 2016-08-31 2016-08-31 Noise reduction automobile exhaust pipe Pending CN106285883A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610774506.7A CN106285883A (en) 2016-08-31 2016-08-31 Noise reduction automobile exhaust pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610774506.7A CN106285883A (en) 2016-08-31 2016-08-31 Noise reduction automobile exhaust pipe

Publications (1)

Publication Number Publication Date
CN106285883A true CN106285883A (en) 2017-01-04

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Application Number Title Priority Date Filing Date
CN201610774506.7A Pending CN106285883A (en) 2016-08-31 2016-08-31 Noise reduction automobile exhaust pipe

Country Status (1)

Country Link
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107376078A (en) * 2017-08-09 2017-11-24 湖南万脉医疗科技有限公司 A kind of bicavate low noise structure of home ventilator
CN107882614A (en) * 2017-11-20 2018-04-06 宁波超锐特工贸有限公司 A kind of multistage noise-reducing structure for beach buggy
CN108952914A (en) * 2018-06-22 2018-12-07 力帆实业(集团)股份有限公司 Exhaust system for motorcycle

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201581960U (en) * 2009-11-23 2010-09-15 桐昆集团浙江恒盛化纤有限公司 Emission gas noise reduction device
CN203189083U (en) * 2013-03-22 2013-09-11 远勤山 Silencer
CN103452627A (en) * 2013-09-03 2013-12-18 王功 Improved muffler
CN105134354A (en) * 2015-08-06 2015-12-09 天津市神驰汽车零部件有限公司 Mobile muffler
CN105178019A (en) * 2015-09-23 2015-12-23 芜湖环瑞汽车内饰件有限公司 Moxa floss composite sound-absorbing cotton and preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201581960U (en) * 2009-11-23 2010-09-15 桐昆集团浙江恒盛化纤有限公司 Emission gas noise reduction device
CN203189083U (en) * 2013-03-22 2013-09-11 远勤山 Silencer
CN103452627A (en) * 2013-09-03 2013-12-18 王功 Improved muffler
CN105134354A (en) * 2015-08-06 2015-12-09 天津市神驰汽车零部件有限公司 Mobile muffler
CN105178019A (en) * 2015-09-23 2015-12-23 芜湖环瑞汽车内饰件有限公司 Moxa floss composite sound-absorbing cotton and preparation method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107376078A (en) * 2017-08-09 2017-11-24 湖南万脉医疗科技有限公司 A kind of bicavate low noise structure of home ventilator
CN107882614A (en) * 2017-11-20 2018-04-06 宁波超锐特工贸有限公司 A kind of multistage noise-reducing structure for beach buggy
CN108952914A (en) * 2018-06-22 2018-12-07 力帆实业(集团)股份有限公司 Exhaust system for motorcycle

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Application publication date: 20170104