CN106677872A - Purification silencer for R180 single-cylinder swirl chamber diesel engine - Google Patents
Purification silencer for R180 single-cylinder swirl chamber diesel engine Download PDFInfo
- Publication number
- CN106677872A CN106677872A CN201611156759.4A CN201611156759A CN106677872A CN 106677872 A CN106677872 A CN 106677872A CN 201611156759 A CN201611156759 A CN 201611156759A CN 106677872 A CN106677872 A CN 106677872A
- Authority
- CN
- China
- Prior art keywords
- perforation
- diesel engine
- swirl chamber
- oxidation catalyst
- 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
Links
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 ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
-
- 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 ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/007—Apparatus used as intake or exhaust silencer
-
- 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
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
-
- 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
- F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
- F01N2570/10—Carbon or carbon oxides
Abstract
The invention discloses a purification silencer for a R180 single-cylinder swirl chamber diesel engine. The purification silencer comprises a shell and an intake pipe; an exhaust port is formed in the upper end of the shell; and an intake port is positioned on an intake pipe. A perforation separation plate, an oxide catalyst carrier wrapped by a barrel-shaped metal shell and a perforation exhaust pipe are arranged in the shell in sequence in a direction from the intake port to the exhaust port. The position of the perforation separation plate and the perforation distribution are obtained by simulation calculation. The oxide catalyst carrier wrapped by the metal shell is wrapped by an asbestos layer; the upper and lower two layers of the asbestos layer are fixed by annular plates; and the asbestos layer achieves an insulation effect. The perforation exhaust pipe adopts a perforation distribution structure of dense in an incoming direction and loose in a direction opposite to the incoming direction, so that the gas circulating performance is effectively improved, and the circulating resistance and the machining cost are reduced. The purification silencer can obviously reduce the emission and the noise of the diesel engine.
Description
Technical field
The present invention relates to a kind of R180 single cylinders swirl chamber diesel engine purifying muffler.Which is that acoustic filter is turned with oxidation catalysiss
Change the purification silencing device that device is combined in one, belong to acoustic filter field.
Background technology
Single cylinder diesel yield is greatly a big characteristic of Chinese internal combustion engine industry, the wherein single cylinder diesel of cylinder diameter≤80mm
Annual production is ten thousand about more than 200, but as cylinder bore is little, direct injection combustion air-fuel mixture difficulty is big, and domestic and international cylinder diameter is less than
The non-rice habitats diesel engine of 80mm is still based on minor air cell.With continuous improvement of the people to environmental protection requirement, Abgasgesetz, make an uproar
The continuous of sound limit value adds sternly, and the energy-conservation of internal combustion engine also becomes the focus of industry development therewith with reducing discharging, and the difficult satisfaction of emission controls by improving combustion is wanted
Ask, therefore external purification will be more and more more on small-bore diesel engine.
Small-power non-rice habitats diesel oil of three discharge standard of non-rice habitats diesel engine state of the newest promulgation of China to power≤37kW
Machine proposes strict requirements.Simultaneously internal combustion engine noise index also needs to meet state compulsory standard, and noise level limit also have plus
Tight trend.Mainly based on single cylinder diesel, existing single-cylinder diesel engine silencer is by swollen to China's light duty diesel engine mostly
The compositions such as swollen chamber, interpolation pipe, perforated plate, resonant cavity and expansion pipe, only play noise elimination effect.Due to single cylinder diesel structure and space
Restriction be difficult to use the advanced technologies such as automatically controlled, automatically controlled, high-pressure common rail, waste gas recirculation, SCR, therefore non-road
Lu Guosan discharge standards are implemented, and the requirement of newest discharge standard is only extremely difficult to by the single cylinder diesel of emission controls by improving combustion.Will
It is blended in muffler for motor using the oxidation catalytic converter of external purification and is integrated, can rationally utilizes one-cylinder diesel
Machine space structure, and discharge and the noise of single cylinder diesel are effectively reduced by external purification.
The content of the invention
A kind of R180 single cylinders swirl chamber diesel engine purifying muffler according to the present invention, is eliminated the noise with R180 diesel engines original machine
Device is prototype, keeps former machine formal parameter as far as possible, in order to installing and changing.R180 disel-oil engine purifying silencers are with oxidation
Catalyst degradation diesel emission, designs catalyst carrier in suppressor case, to carrier positions and silencer element position
Optimization design, optimizes purifying muffler internal structure, passes through oxygen by optimization design Perforated clapboard and Perforated clapboard position
The air-flow changed inside catalyst carrier is more uniform, so as to improve the transformation efficiency and service life of oxidation catalyst, can reduce
Oxidation catalyst consumption, reduces cost；Simultaneously noise elimination structure element inside optimization design so that each silencer element after optimization with
Oxidation catalyst carrier effectively cooperates with the exhaust noise for reducing electromotor.Using technical scheme it is as follows：
R180 single cylinder swirl chamber diesel engine purifying mufflers, including shell and air inlet pipe, the shell and the air inlet
Pipe is connected；Air inlet of the mouth of pipe of the air inlet pipe as acoustic filter；The enclosure is sequentially provided with perforation along airflow direction
Dividing plate, oxidation catalyst carrier, perforation escape pipe；It is equipped with by aerofluxuss above the Perforated clapboard and the perforation escape pipe
The aperture of air-flow；
The first expansion chamber is formed between the Perforated clapboard and the outer casing inner wall that is positioned under；The oxidation catalyst is carried
The second expansion chamber is formed between the outer casing inner wall in body and face disposed thereon；The perforation escape pipe is located at second expansion chamber
It is interior；The gas outlet of the closing of described perforation escape pipe one end, the other end and air communication as acoustic filter.
Further, the oxidation catalyst carrier is wrapped up by tubbiness metal-back；The outside of the tubbiness metal-back is by stone
Cotton heat-insulation layer is wrapped up；The top and bottom of the asbestos heat-insulation layer are fixed by annular slab；The outward flange of the annular slab and institute
State outer casing inner wall welding, inward flange to be welded and fixed with the tubbiness metal-back；The annular slab peripheral sealing so that exhaust airstream
Only by circulation in oxidation catalyst carrier；The oxidation catalyst carrier of tubbiness metal-back parcel be respectively equipped with air inlet and
Gas outlet.
Further, the vertical dimension between the Perforated clapboard and shell bottom inwall is 10mm；The perforation
Dividing plate is 18mm with the vertical dimension of the air inlet of the oxidation catalyst carrier.
Further, the hole on the Perforated clapboard is evenly distributed on the center of circle and several concentric circulars.
Further, the number of the concentric circular is 4, described 4 concentric diameter of a circles be followed successively by from inside to outside 20mm,
38mm, 56mm, 74mm, the perforation number on 4 concentric circulars are followed successively by 6,13,17,25；The center of circle and several are same
The diameter of the perforation on heart circle is 5mm.
Further, a diameter of 93mm of the Perforated clapboard.
Further, the aperture on the perforation escape pipe is interspersed in uneven.
Further, the aperture on the perforation escape pipe is arranged for 10 rows 16, and hole diameter is 4mm, between each column aperture
Apart from d2 be 5mm, often the distance between row aperture by following rule distribution：The often row hole center to center of the upper and lower both sides of centrage
The distributed architecture for 3mm, 9mm, 16mm, 24mm, 33mm being followed successively by respectively apart from L, realizing that middle close both sides are dredged of line.
Further, the perforation escape pipe is made up of flat sheet curling welding, and weld seam is away from oxidation catalyst
Simultaneously install upwards the gas outlet of carrier.
Further, the shell is divided into upper casing and lower casing, is easy to the loading of oxidation catalyst carrier, the upper casing and institute
State welded seal between lower casing.
Beneficial effects of the present invention：
1st, purifying muffler of the invention is arranged on to test on R180 diesel engines and shows, Diesel Engine Complete Machine noise is former less than using
The total noise of centrifuge of the common acoustic filter of machine, the whole Pollution from the engine exhaust of diesel engine have reached national non-rice habitats diesel engine phase III row
Put the requirement of standard.
2nd, and it is traditional only oxidation catalyst carrier is arranged in acoustic filter, the purification without Perforated clapboard structure water conservancy diversion disappears
Sound device is compared, and the conversion ratio of CO, HC, PM discharge improves 15~28%；Only oxidation catalyst carrier is arranged on traditional
In acoustic filter, the Diesel Engine Complete Machine noise for being provided with the purifying muffler of Perforated clapboard structure is substantially reduced, be provided with perforation every
The purifying muffler of hardened structure can reduce about 1.0dB (A) compared with the Diesel Engine Complete Machine noise of the former machine acoustic filter of dress.
3rd, disel-oil engine purifying silencer of the present invention can meet R180 series single cylinder diesel support the use requirement.
Description of the drawings
Fig. 1 is front view of the present invention.
Fig. 2 is Perforated clapboard structure chart.
Fig. 3 is perforation outlet duct structures figure.
Fig. 4 is former machine purifying muffler flow field velocity cloud atlas.
Wherein (a) represents former machine purifying muffler internal speed cloud atlas, and (b) (c) (d) represents former machine purifying muffler respectively
In successively apart from the speed cloud atlas in section at the air inlet pipe port of export 10,15,25cm.
Fig. 5 is purifying muffler flow field velocity cloud atlas of the present invention.
Wherein (a) represents purifying muffler interior flow field speed cloud atlas of the present invention, and (b) (c) (d) represents that the present invention is net respectively
Successively apart from the speed cloud atlas in section at the air inlet pipe port of export 10,15,25cm in change acoustic filter.
Description of reference numerals：1- air inlet pipe, the first expansion chambers of 2-, 3- Perforated clapboards, 4- pressure stabilizing cavities, 5- annular slabs, 6- oxygen
Change under catalyst carrier, 7- asbestos layers, 8- tubbiness metal-backs, 9- perforation escape pipes, the second expansion chambers of 10-, 11- upper casings, 12-
Shell.
Specific embodiment
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1, Figure 2, Figure 3 shows, purifying muffler proposed by the present invention includes shell, the air inlet pipe being connected with shell；
The shell is divided into upper casing 11 and lower casing 12, and the air inlet pipe of shell bottom is that air inlet, housing top end are provided with gas outlet, described outer
Perforated clapboard 3, oxidation catalyst carrier 6, perforation escape pipe 9 are sequentially provided with along airflow direction inside shell；3 He of the Perforated clapboard
Perforation escape pipe 9 is equipped with air-flow aperture above, and oxidation catalyst carrier 6 is provided with air inlet and gas outlet；
The oxidation catalyst carrier 6 is integrally formed by the parcel of tubbiness metal-back 8, and the tubbiness metal-back 8 is by described
Annular slab 5 is weldingly fixed on the outer casing inner wall, in the metal ring plate 5 internal diameter be 80mm, external diameter be 93mm, metal
Annular slab plays a part of fixed support oxidation catalyst carrier.5 inward flange of the annular slab is solid with the welding of tubbiness metal-back 8
Fixed, outward flange and outer casing inner wall are fixed.Asbestos layer 7 is filled in the space that the annular slab 5 is formed with shell, tubbiness metal-back 8,
Ensure that diesel engine catalyst in low speed, Smaller load there are enough temperature ignitions, so as to widen the working range of catalyst.
The Perforated clapboard 3 is set to 18mm with the vertical dimension between 6 air inlet of the oxidation catalyst carrier；It is described
Vertical dimension between Perforated clapboard 3 and shell bottom inwall is set to 10mm.So make air-flow be uniformly distributed in carrier to cut
Face.
On the Perforated clapboard 3, the gross area in hole is set between 1 times to 2 times of 1 area of air inlet pipe, preferably 1.5 times.So
Both soundproof effect had been can ensure that, exhaust process flow resistance can have been reduced again so that aerofluxuss are more smooth.
As shown in Fig. 2 the hole on the Perforated clapboard 3 is uniformly distributed according to certain rules from dividing plate center to external radiation, tool
The body regularity of distribution is：Hole on the Perforated clapboard be evenly distributed on several concentric circulars and the center of circle on, the concentric circular
Number is 4, and described 4 concentric diameter of a circles are followed successively by 20mm, 38mm, 56mm, 74mm, 4 concentric circulars from inside to outside
On perforation number once be 6,13,17,25.In all perforation and the center of circle, the diameter of an only perforation is
5mm.The distribution in the hole on Perforated clapboard causes air-flow to be uniformly distributed in carrier section, is conducive to drop using such perforation distributions
Low flow resistance, improves the uniformity for flowing to the air-flow in oxidation catalyst carrier 6, improves oxidation catalyst transformation efficiency,
Flow velocity declines simultaneously.Improve the service life of oxidation catalyst.
The diameter of the Perforated clapboard 3 is set to 93mm.
The perforation escape pipe 9 left end sealing, upwards, perforation close quarters is just exported weld seam to oxidation catalyst carrier 6,
The gas outlet of right-hand member and air communication as acoustic filter.
Be illustrated in figure 3 perforation escape pipe expanded view, the present invention centrage be bore a hole escape pipe on weld seam just to that
Bar line, L are the distance of every row hole center to center line.The aperture of several a diameter of 4mm is uniformly distributed on the perforation escape pipe,
The regularity of distribution is as follows：Often the value apart from L of row hole center to center line is respectively 3mm, 9mm, 16mm, 24mm, 33mm, realizes middle
The distributed architecture that close both sides are dredged；The hole heart in each column hole is 5mm away from d2；The hole heart of most right string is to the perforation outlet mouth of pipe apart from d3
For 14mm, the hole heart that most the first from left is arranged to perforation escape pipe bottom is 8mm apart from d1.Ensure that using the distribution in such hole
The flow resistance of purifying muffler is reduced while reaching noise elimination purpose.
The first expansion chamber 2, the Perforated clapboard 3 and the tubbiness metal are formed between the Perforated clapboard 3 and lower casing 12
Form pressure stabilizing cavity 4 between the oxidation catalyst carrier 6 of shell parcel, the oxidation catalyst carrier 6 of the tubbiness metal-back 8 parcel with
The second expansion chamber 10 is formed between upper casing 11, the perforation escape pipe is horizontally placed at the second expansion intracavity.
Fig. 4 is former machine purifying muffler internal speed cloud atlas, it can be seen that high velocity air is urged by oxidation from Fig. 4 (a)
During agent carrier, air-flow more concentratedly flows through central area.Fig. 4 (b), (c), (d) be followed successively by apart from the air inlet pipe port of export 10,
15th, speed cloud atlas at 25cm, again it can be seen that air-flow more intensively flows through oxidation catalyst carrier from figure.In air flow collection
Catalytic conversion agent carrier center region is flow through, causes the transformation efficiency of tail gas to reduce, be easily caused central area catalyst inactivation, contracting
The service life of shot-catalyst agent.Fig. 5 is purifying muffler interior flow field speed cloud atlas of the present invention, it can be seen that peace from Fig. 5 (a)
Perforated clapboard of the dress with rectified action, can effectively improve the problem of airflow homogeneity difference in former machine purifying muffler.Fig. 5
B () (c) (d) is to optimize after-purification acoustic filter Perforated clapboard to the section speed cloud atlas between catalytic conversion agent carrier inlet end,
It is followed successively by the speed cloud atlas at the air inlet pipe port of export 10,15,25cm.Therefore apart from the oxidation catalysiss of air inlet pipe port of export 28mm
The flow velocity of agent catalyst carrier arrival end is substantially uniform, and this can lift the oxidation catalysiss transformation efficiency of tail gas and can extend
The service life of purifying muffler.
The operation principle and process of purifying muffler of the present invention is as follows：
The waste gas that diesel engine is discharged is entered inside purifying muffler by air inlet pipe 1, is disappeared by the first expansion chamber 2 first
Sound；Second noise elimination is carried out and to rectified action will be played by the air-flow of oxidation catalyst 6 through Perforated clapboard 3, make gas
Stream more flows evenly through oxidation catalyst carrier 6；Air-flow out enters the second expansion chamber 10 again afterwards by oxidation catalyst carrier 6
Secondary noise elimination；Purifying muffler is discharged after finally being eliminated the noise by perforation escape pipe 9.
The a series of detailed description of those listed above is only for the feasibility embodiment of the present invention specifically
Bright, they simultaneously are not used to limit the scope of the invention, all equivalent implementations made without departing from skill spirit of the present invention
Or change should be included within the scope of the present invention.
Claims (10)
1.R180 single cylinder swirl chamber diesel engine purifying mufflers, it is characterised in that including shell and air inlet pipe (1), it is described outer
Shell is connected with the air inlet pipe (1)；Air inlet of the mouth of pipe of the air inlet pipe as acoustic filter；The enclosure is along air-flow side
To be sequentially provided with Perforated clapboard (3), oxidation catalyst carrier (6), perforation escape pipe (9)；The Perforated clapboard (3) and described wear
Hole escape pipe (9) is equipped with hole above；
The first expansion chamber (2) is formed between the Perforated clapboard (3) and the outer casing inner wall being positioned under；The oxidation catalyst
The second expansion chamber (10) is formed between carrier (6) and the outer casing inner wall in face disposed thereon；Perforation escape pipe (9) is positioned at described
In second expansion chamber (10)；The outlet of the closing of described perforation escape pipe (9) one end, the other end and air communication as acoustic filter
Mouthful.
2. R180 single cylinders swirl chamber diesel engine purifying muffler according to claim 1, it is characterised in that the oxidation
Catalyst carrier (6) is wrapped up by tubbiness metal-back (8)；Wrapped up by asbestos layer (7) outside of the tubbiness metal-back (8)；It is described
The top and bottom of asbestos layer (7) are fixed by annular slab (5)；The outward flange of the annular slab (5) is welded with the outer casing inner wall
Connect, inward flange is welded and fixed with the tubbiness metal-back (8)；The oxidation catalyst carrier (6) that the tubbiness metal-back (8) is wrapped up
It is respectively equipped with air inlet and gas outlet.
3. R180 single cylinders swirl chamber diesel engine purifying muffler according to claim 2, it is characterised in that the perforation
Vertical dimension between dividing plate (3) and shell bottom inwall is 10mm；The Perforated clapboard (3) and the oxidation catalyst
The vertical dimension of the air inlet of carrier (6) is 18mm.
4. R180 single cylinders swirl chamber diesel engine purifying muffler according to claim 1, it is characterised in that the perforation
Hole on dividing plate (3) is evenly distributed on the center of circle and several concentric circulars.
5. R180 single cylinders swirl chamber diesel engine purifying muffler according to claim 4, it is characterised in that it is described with one heart
Round number is 4, and described 4 concentric diameter of a circles are followed successively by 20mm, 38mm, 56mm, 74mm from inside to outside, and described 4 same
Perforation number on heart circle is followed successively by 6,13,17,25；The diameter of the perforation on the center of circle and several concentric circulars is
5mm。
6. R180 single cylinders swirl chamber diesel engine purifying muffler according to claim 5, it is characterised in that the perforation
A diameter of 93mm of dividing plate (3).
7. R180 single cylinders swirl chamber diesel engine purifying muffler according to claim 1, it is characterised in that the perforation
Aperture on escape pipe (9) is interspersed in uneven.
8. R180 single cylinders swirl chamber diesel engine purifying muffler according to claim 7, it is characterised in that the perforation
Aperture on escape pipe is arranged for 10 rows 16, and hole diameter is 4mm, and the distance between each column aperture d2 is 5mm, often between row aperture
Distance by following rule be distributed：The often row hole center to center line of the upper and lower both sides of centrage apart from L be followed successively by respectively 3mm,
9mm, 16mm, 24mm, 33mm, realize the distributed architecture that middle close both sides are dredged.
9. R180 single cylinders swirl chamber diesel engine purifying muffler according to claim 1, it is characterised in that the perforation
Escape pipe (9) by flat sheet curling welding make, and weld seam away from oxidation catalyst carrier gas outlet and pacify upwards
Dress.
10. R180 single cylinders swirl chamber diesel engine purifying muffler according to claim 1, it is characterised in that described outer
Shell is divided into upper casing (11) and lower casing (12), welded seal between the upper casing (11) and the lower casing (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611156759.4A CN106677872A (en) | 2016-12-15 | 2016-12-15 | Purification silencer for R180 single-cylinder swirl chamber diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611156759.4A CN106677872A (en) | 2016-12-15 | 2016-12-15 | Purification silencer for R180 single-cylinder swirl chamber diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106677872A true CN106677872A (en) | 2017-05-17 |
Family
ID=58868951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611156759.4A Pending CN106677872A (en) | 2016-12-15 | 2016-12-15 | Purification silencer for R180 single-cylinder swirl chamber diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106677872A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915241A (en) * | 2017-12-13 | 2019-06-21 | 北汽福田汽车股份有限公司 | Flow apron, oxidation catalyzer and vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2106895U (en) * | 1991-10-18 | 1992-06-10 | 周国君 | Tailgas purifying silencer |
| CN1281936A (en) * | 1999-06-25 | 2001-01-31 | 本田技研工业株式会社 | Exhaust gas pollution controller |
| CN104929739A (en) * | 2015-07-06 | 2015-09-23 | 无锡华源凯马发动机有限公司 | Integrated purification silencer for single cylinder diesel |
| CN105822395A (en) * | 2016-05-11 | 2016-08-03 | 江苏大学 | Tail gas purification muffler applied to 1115 series of single-cylinder diesel engines |
| CN206290313U (en) * | 2016-12-15 | 2017-06-30 | 江苏大学 | R180 single cylinder swirl chamber diesel engine purifying mufflers |
-
2016
- 2016-12-15 CN CN201611156759.4A patent/CN106677872A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2106895U (en) * | 1991-10-18 | 1992-06-10 | 周国君 | Tailgas purifying silencer |
| CN1281936A (en) * | 1999-06-25 | 2001-01-31 | 本田技研工业株式会社 | Exhaust gas pollution controller |
| CN104929739A (en) * | 2015-07-06 | 2015-09-23 | 无锡华源凯马发动机有限公司 | Integrated purification silencer for single cylinder diesel |
| CN105822395A (en) * | 2016-05-11 | 2016-08-03 | 江苏大学 | Tail gas purification muffler applied to 1115 series of single-cylinder diesel engines |
| CN206290313U (en) * | 2016-12-15 | 2017-06-30 | 江苏大学 | R180 single cylinder swirl chamber diesel engine purifying mufflers |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915241A (en) * | 2017-12-13 | 2019-06-21 | 北汽福田汽车股份有限公司 | Flow apron, oxidation catalyzer and vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105888782B (en) | Diesel engine vent gas composite purification device | |
| CN110657007B (en) | SCR urea mixer for diesel internal combustion engine aftertreatment system | |
| JP2003193829A (en) | Exhaust manifold for improving purifying efficiency and service life of catalytic converter | |
| CN104929739A (en) | Integrated purification silencer for single cylinder diesel | |
| CN206290313U (en) | R180 single cylinder swirl chamber diesel engine purifying mufflers | |
| CN106337714B (en) | Nozzle integrated form SCR catalytic muffler | |
| CN105781689B (en) | Diesel engine vent gas compound noise-reducing device | |
| CN106677872A (en) | Purification silencer for R180 single-cylinder swirl chamber diesel engine | |
| CN105822395A (en) | Tail gas purification muffler applied to 1115 series of single-cylinder diesel engines | |
| US10155189B2 (en) | Exhaust gas treating device and manufacturing method of honeycomb structure | |
| CN205477849U (en) | A device of making an uproar falls in combined type tail gas for diesel engine | |
| CN206016937U (en) | Spoiler structure in for exhaust aftertreatment | |
| KR101158029B1 (en) | A muffler for automobile | |
| CN105736097B (en) | Diesel engine vent gas reclaiming clean and noise reduction set composite | |
| CN205744072U (en) | 1115 series single cylinder diesel tail-gas purifying silencers | |
| KR20130097354A (en) | Tail pipe structure for muffuler | |
| CN111894710A (en) | Marine diesel engine exhaust SCR denitration purifies silencer | |
| CN207715213U (en) | A kind of engine exhaust muffler | |
| CN213063711U (en) | Automobile purification silencer | |
| CN110761877A (en) | Diesel engine high pressure SCR reactor and diesel engine | |
| CN206256952U (en) | A kind of commercial vehicle exhaust pipe | |
| KR100733654B1 (en) | Swirl flow type of catalyst converter | |
| CN205477848U (en) | A tail gas is retrieved purification and is fallen set composite of making an uproar for diesel engine | |
| CN107965383A (en) | Noise eliminator of motorcycle | |
| CN220869494U (en) | Muffler for single-cylinder high-performance engine |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170517 |
|
| RJ01 | Rejection of invention patent application after publication |