CN110685781B - Tail gas treatment device - Google Patents
Tail gas treatment device Download PDFInfo
- Publication number
- CN110685781B CN110685781B CN201911113243.5A CN201911113243A CN110685781B CN 110685781 B CN110685781 B CN 110685781B CN 201911113243 A CN201911113243 A CN 201911113243A CN 110685781 B CN110685781 B CN 110685781B
- Authority
- CN
- China
- Prior art keywords
- shell
- exhaust
- cavity
- treatment device
- partition board
- 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.)
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- 238000005192 partition Methods 0.000 claims abstract description 28
- 238000000746 purification Methods 0.000 claims abstract description 14
- 239000003054 catalyst Substances 0.000 claims description 5
- 238000009423 ventilation Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 10
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000969 carrier Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- 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
- 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
- F01N3/2839—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration
-
- 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
- F01N3/2892—Exhaust flow directors or the like, e.g. upstream of catalytic device
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
The invention belongs to the technical field of engines, and discloses a tail gas treatment device which comprises a shell, wherein the shell comprises a first shell and a second shell, an air inlet hole is formed in the first shell, and an air outlet hole is formed in the second shell; the first shell is connected to one side of the partition board, and a first cavity is arranged between the first shell and the partition board; the second shell is connected to the other side of the partition board, a second cavity is arranged between the second shell and the partition board, a circulation port is formed in the partition board, and the circulation port is used for communicating the air inlet with the air outlet; the purification assembly is arranged at the circulation port and used for purifying and guiding the tail gas flowing through the circulation port; the exhaust assembly comprises a honeycomb duct, the honeycomb duct is arranged at the exhaust hole and is positioned in the second cavity, and tail gas in the second cavity can be guided to be discharged from the exhaust hole. Through the structure, the exhaust gas treatment device is smooth in exhaust, small in resistance and beneficial to reducing pressure drop and noise of the whole exhaust gas treatment device.
Description
Technical Field
The invention relates to the technical field of engines, in particular to an exhaust gas treatment device.
Background
With the continuous enhancement of environmental awareness, the influence of the exhaust gas discharged by non-road mobile machinery on the environment is increasingly received by people in recent years, and corresponding emission standards are established in many countries. At present, a small general engine is widely applied to non-road engineering machinery, and in order to enable the engine to meet corresponding emission standards, a technical scheme of adding an exhaust gas treatment device on the engine is generally adopted.
However, in the exhaust treatment device commonly used at present, the exhaust mechanism is usually only an exhaust hole directly formed on the bottom plate, and the direction of the exhaust hole is larger than the flow direction difference of the exhaust gas in the exhaust treatment device, and the size of the exhaust hole is smaller, so that the exhaust gas treated by the exhaust treatment device is larger in resistance in the exhaust process, and the exhaust is unsmooth, so that the exhaust gas is easy to form backflow in the exhaust treatment device, uneven heat dissipation is caused, and the pressure drop of the whole exhaust treatment device is larger, so that the noise generated by the exhaust treatment device is larger, and the oil consumption of the engine is increased to a certain extent.
Disclosure of Invention
The invention aims to provide the tail gas treatment device which is smooth in exhaust and small in resistance, and is beneficial to reducing pressure drop and noise of the whole tail gas treatment device.
To achieve the purpose, the invention adopts the following technical scheme:
An exhaust gas treatment device comprising:
The shell comprises a first shell and a second shell, wherein the first shell is provided with an air inlet hole, and the second shell is provided with an air outlet hole;
The first shell is connected to one side of the partition board, and a first cavity is arranged between the first shell and the partition board; the second shell is connected to the other side of the partition board, a second cavity is arranged between the second shell and the partition board, a circulation port is formed in the partition board, and the circulation port is used for communicating the air inlet with the air outlet;
The purification assembly is arranged at the circulation port and is used for purifying and guiding the tail gas flowing through the circulation port;
The exhaust assembly comprises a guide pipe, the guide pipe is arranged at the exhaust hole and is positioned in the second cavity, and tail gas in the second cavity can be guided to be exhausted from the exhaust hole.
Preferably, the vent holes are configured in a semicircular shape.
Preferably, the exhaust assembly further comprises a diversion port, the diversion port is configured into a quarter sphere, the diameter of the diversion port is equal to that of the exhaust hole, and the diversion port is arranged on the exhaust hole and is positioned at one side far away from the diversion pipe.
Preferably, the purification assembly comprises a carrier support, wherein a catalyst carrier is contained in the carrier support, and the carrier support is connected to the circulation port and is positioned in the first cavity.
Preferably, openings at two ends of the carrier support and the circulation port are square in shape and equal in side length.
Preferably, the purifying assembly further comprises a deflector connected to the flow port and located in the second cavity.
Preferably, the deflector is provided with a plurality of first vent holes.
Preferably, the cross section of the inlet of the flow guiding pipe is semicircular.
Preferably, a plurality of second ventilation holes are formed in the pipe wall of the flow guide pipe.
Preferably, the device further comprises a connecting assembly, wherein the connecting assembly comprises a connecting pin, the connecting pin penetrates through the partition board, one end of the connecting pin is connected with the first shell, and the other end of the connecting pin is connected with the second shell.
The invention has the beneficial effects that:
The invention provides a tail gas treatment device, which is provided with a purification component and an exhaust component, wherein the purification component is arranged at a circulation port in the tail gas treatment device and can catalyze tail gas flowing through the purification component so as to purify the tail gas; the exhaust assembly comprises a flow guide pipe arranged at the exhaust hole, the flow guide pipe can guide the tail gas in the second cavity to be smoothly discharged outwards from the exhaust hole, so that the backflow of the tail gas in the tail gas treatment device is reduced, the resistance of the tail gas in the discharging process is reduced, the exhaust is smoother, and the pressure drop and noise of the tail gas treatment device are reduced.
Drawings
FIG. 1 is a left side view of an exhaust treatment device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an exploded view of an exhaust treatment device according to an embodiment of the present invention;
fig. 3 is a bottom view of an exhaust treatment device according to an embodiment of the present invention.
In the figure:
1. a housing; 11. a first housing; 111. an air inlet hole; 12. a second housing; 121. an exhaust hole;
2. A partition plate; 21. a first cavity; 22. a second cavity; 23. a flow port;
3. A purification assembly; 31. a carrier support; 32. a deflector; 321. a first vent hole;
4. An exhaust assembly; 41. a flow guiding pipe; 411. a second vent hole; 42. a diversion port;
5. A connection assembly; 51. a connecting pin; 52. an inlet flange.
Detailed Description
In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.
The invention provides an exhaust gas treatment device, as shown in fig. 1, which comprises a shell 1, a partition board 2, a purification component 3, an exhaust component 4 and a connecting component 5, wherein the partition board 2 is connected with the shell 1 through the connecting component 5, the purification component 3 is arranged on the partition board 2, and the exhaust component 4 is arranged on the shell 1. The housing 1 includes a first housing 11 and a second housing 12, an air inlet 111 is disposed on the first housing 11, an air outlet 121 is disposed on the second housing 12, the air inlet 111 is communicated with an air outlet of a cylinder, and is used for introducing exhaust gas generated by an engine into the exhaust gas treatment device. One side of the partition board 2 is connected to the first shell 11, the other side is connected to the second shell 12, a first cavity 21 is arranged between the partition board 2 and the first shell 11, a second cavity 22 is arranged between the partition board 2 and the second shell 12, the first cavity 21 is communicated with the air inlet 111, and the second cavity 22 is communicated with the air outlet 121. The partition plate 2 is provided with a circulation port 23, and the first cavity 21 and the second cavity 22 are communicated through the circulation port 23, so that the air inlet 111 and the air outlet 121 can be communicated, and the exhaust gas exhausted from the exhaust port of the air cylinder can sequentially pass through the air inlet 111, the first cavity 21, the circulation port 23, the second cavity 22 and the air outlet 121 and then be exhausted out of the exhaust gas treatment device.
In addition, the purification assembly 3 is installed at the position of the circulation port 23, so that the tail gas flowing through the circulation port 23 is catalyzed, the tail gas is purified, the tail gas can be guided to smoothly enter the circulation port 23 from the first cavity 21, the tail gas flowing out of the circulation port 23 is guided to smoothly enter the second cavity 22, the resistance of the tail gas flowing through the circulation port 23 is reduced, and the tail gas is smoothly circulated. The exhaust assembly 4 is installed at the exhaust hole 121, and can guide the exhaust gas in the second cavity 22 to be smoothly discharged outwards from the exhaust hole 121, so that not only can the backflow of the exhaust gas in the exhaust gas treatment device be reduced, but also the resistance of the exhaust gas in the discharge process can be reduced, the exhaust gas is smoother, and the pressure drop and noise of the exhaust gas treatment device can be reduced.
In this embodiment, the purifying component 3 includes a carrier support 31 and a baffle 32, where an opening of one end of the carrier support 31 is mounted on the flow port 23 and contains the catalyst carrier therein, the carrier support 31 is located in the first cavity 21, and the baffle 32 is also mounted on the flow port 23 and located in the second cavity 22. As shown in fig. 2, the flow openings 23 are preferably square in shape, facilitating the processing of the flow openings 23 into the separator plate 2. More preferably, the openings at two ends of the carrier support 31 are the same and are square, and the side length of the opening of the carrier support 31 is equal to the side length of the circulation port 23, so that the tail gas entering the carrier support 31 can uniformly flow to the circulation port 23, and all catalyst carriers in the carrier support 31 can participate in the catalytic reaction with the tail gas, thereby not only being beneficial to improving the utilization rate of the catalyst carriers, but also being beneficial to improving the treatment efficiency of the tail gas treatment device on the tail gas.
Preferably, the outlet direction of the baffle 32 is directed toward the direction in which the exhaust hole 121 is located, so that the exhaust gas discharged from the baffle 32 can be more smoothly discharged. More preferably, the guide plate 32 is provided with a plurality of first vent holes 321, so that the exhaust gas can be discharged from the first vent holes 321, the exhaust gas can be quickly filled in the second cavity 22, the pressure drop of the exhaust gas is reduced, the heat dissipation of the exhaust gas in the second cavity 22 is also facilitated, and meanwhile, the noise of exhaust gas discharge can be reduced due to the arrangement of the plurality of first vent holes 321.
As shown in fig. 2 and 3, in the present embodiment, the exhaust assembly 4 includes a draft tube 41 and a draft port 42. The flow guide 41 is installed on the exhaust hole 121 and is located in the second cavity 22, and the flow guide 42 is installed on the exhaust hole 121 and is located at a side far from the flow guide 41. Preferably, the exhaust hole 121 is provided in a semicircular shape, which is advantageous in that it is possible to smoothly exhaust the exhaust gas and reduce noise generated when the exhaust gas is exhausted from the exhaust hole 121. More preferably, a plurality of exhaust holes 121 are arranged, and the exhaust holes 121 are uniformly distributed at intervals, so that the exhaust speed is increased. In this embodiment, the flow guiding tube 41 is configured as a semicircular tube, the flow guiding tube 41 is covered on the plurality of exhaust holes 121, and two ends of the semicircular tube are semicircular inlets and are communicated with the exhaust holes 121, so that the tail gas in the second cavity 22 can enter the flow guiding tube 41 from the inlets at two ends of the flow guiding tube 41 and be discharged from the exhaust holes 121, and the noise generated when the tail gas is discharged from the exhaust holes 121 can be suppressed, which is beneficial to reducing the noise of the tail gas treatment device. Preferably, a plurality of second ventilation holes 411 are formed on the wall of the flow guiding tube 41, so that the tail gas in the second cavity 22 can enter the flow guiding tube 41 from the second ventilation holes 411, which is not only beneficial to reducing the pressure drop but also has the effect of reducing noise.
In this embodiment, the diversion port 42 is set to be a quarter sphere, and the diameter of the diversion port 42 is equal to the diameter of the exhaust hole 121, so that the diversion port 42 can be matched and covered on the exhaust hole 121, which is beneficial to suppressing noise generated when the exhaust hole 121 exhausts and reducing noise of the exhaust gas treatment device.
In this embodiment, the connection assembly 5 includes an inlet flange 52 and a connection pin 51, the inlet flange 52 is installed at the air inlet hole 111 and is fixedly connected to the first housing 11, the connection pin 51 is disposed on the partition board 2 in a penetrating manner, one end of the connection pin 51 is connected to the inlet flange 52, and the other end is connected to the second housing 12, so as to connect the first housing 11, the partition board 2 and the second housing 12. Preferably, the inlet of the inlet flange 52 is equal to the air inlet hole 111 in size and is set equal to the exhaust port of the engine cylinder, which is beneficial to reducing the speed of the exhaust gas entering the exhaust gas treatment device from the exhaust port of the cylinder, not only reducing the impact of the exhaust gas on the partition board 2, but also facilitating the diffusion of the exhaust gas to fill the first cavity 21, facilitating the heat dissipation of the exhaust gas, and reducing the pressure drop of the exhaust gas treatment device. More preferably, the inlet flange 52 is welded to the air inlet hole 111 of the first housing 11 and disposed in the first cavity 21, which is beneficial to enhancing the connection strength between the connection assembly 5 and the housing 1.
It can be appreciated that the exhaust gas treatment device provided by the invention not only can be used for treating the exhaust gas of a small general engine, but also can be used for treating the exhaust gas of other types of engines, the exhaust gas of the exhaust gas treatment device is smooth, the back flow of the exhaust gas in the exhaust gas treatment device can be reduced, the resistance of the exhaust gas is smaller, and the reduction of the pressure drop and the noise of the whole exhaust gas treatment device is facilitated.
It is to be understood that the above examples of the present invention are provided for clarity of illustration only and are not limiting of the embodiments of the present invention. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the invention. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (5)
1. An exhaust gas treatment device, comprising:
the device comprises a shell (1), wherein the shell (1) comprises a first shell (11) and a second shell (12), an air inlet hole (111) is formed in the first shell (11), and an air outlet hole (121) is formed in the second shell (12);
The first shell (11) is connected to one side of the partition board (2), and a first cavity (21) is arranged between the first shell (11) and the partition board (2); the second shell (12) is connected to the other side of the partition board (2), a second cavity (22) is arranged between the second shell (12) and the partition board (2), a circulation port (23) is formed in the partition board (2), and the circulation port (23) is used for communicating the air inlet hole (111) with the air outlet hole (121);
The purification assembly (3), the purification assembly (3) is installed in the department of circulation port (23), is used for purifying and guiding the tail gas that flows through from circulation port (23), purification assembly (3) still include guide plate (32), guide plate (32) connect in on circulation port (23) and lie in second cavity (22), the exit direction of guide plate (32) is towards the direction that exhaust hole (121) is located, be equipped with a plurality of first air vents (321) on guide plate (32);
The exhaust assembly (4), the exhaust assembly (4) comprises a guide pipe (41), the guide pipe (41) is installed at the exhaust hole (121) and is positioned in the second cavity (22), and exhaust gas in the second cavity (22) can be guided to be exhausted from the exhaust hole (121);
the exhaust hole (121) is configured in a semicircle;
The flow guide pipe (41) is arranged as a semicircular pipe;
The exhaust assembly (4) further comprises a diversion port (42), the diversion port (42) is configured into a quarter sphere, the diameter of the diversion port (42) is equal to that of the exhaust hole (121), and the diversion port (42) is arranged on the exhaust hole (121) and is positioned at one side far away from the diversion pipe (41);
The purification assembly (3) comprises a carrier support (31), a catalyst carrier is contained in the carrier support (31), and the carrier support (31) is connected to the flow port (23) and located in the first cavity (21).
2. The exhaust gas treatment device according to claim 1, characterized in that both end openings of the carrier holder (31) and the flow openings (23) are square in shape and equal in side length.
3. The exhaust gas treatment device according to claim 1 or 2, characterized in that the cross-sectional shape of the inlet of the draft tube (41) is semicircular.
4. The exhaust gas treatment device according to claim 1 or 2, characterized in that a plurality of second ventilation holes (411) are provided in the pipe wall of the draft pipe (41).
5. The exhaust gas treatment device according to claim 1 or 2, further comprising a connection assembly (5), wherein the connection assembly (5) comprises a connection pin (51), the connection pin (51) is arranged on the partition board (2) in a penetrating manner, one end of the connection pin (51) is connected to the first housing (11), and the other end of the connection pin (51) is connected to the second housing (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911113243.5A CN110685781B (en) | 2019-11-14 | 2019-11-14 | Tail gas treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911113243.5A CN110685781B (en) | 2019-11-14 | 2019-11-14 | Tail gas treatment device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110685781A CN110685781A (en) | 2020-01-14 |
| CN110685781B true CN110685781B (en) | 2024-05-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911113243.5A Active CN110685781B (en) | 2019-11-14 | 2019-11-14 | Tail gas treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110685781B (en) |
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| CN1844647A (en) * | 2005-04-08 | 2006-10-11 | 创科实业有限公司 | Muffler with catalytic converter |
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| CN105649729A (en) * | 2016-03-18 | 2016-06-08 | 山东华盛农业药械有限责任公司 | Low-emission silencer |
| CN105888782A (en) * | 2016-04-08 | 2016-08-24 | 重庆交通大学 | Compound purifying device for diesel engine tail gas |
| JP2017075578A (en) * | 2015-10-16 | 2017-04-20 | ヤンマー株式会社 | Exhaust emission control device for vessel |
| CN206972339U (en) * | 2017-06-30 | 2018-02-06 | 江苏大学 | A kind of purifying muffler for being used for 1100 single cylinder diesels |
| CN108979819A (en) * | 2018-09-25 | 2018-12-11 | 清华大学苏州汽车研究院（吴江） | A kind of small-sized universal engine after-treatment system |
| CN109578120A (en) * | 2018-09-14 | 2019-04-05 | 天纳克（苏州）排放***有限公司 | Exhaust aftertreatment mixing arrangement |
| CN110118114A (en) * | 2019-02-28 | 2019-08-13 | 浙江亚特电器有限公司 | A kind of exhaust structure for muffler of four-stroke gasoline engine chain saw |
| CN210858888U (en) * | 2019-11-14 | 2020-06-26 | 清华大学苏州汽车研究院（吴江） | Tail gas treatment device |
-
2019
- 2019-11-14 CN CN201911113243.5A patent/CN110685781B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1844647A (en) * | 2005-04-08 | 2006-10-11 | 创科实业有限公司 | Muffler with catalytic converter |
| CN204327250U (en) * | 2014-11-18 | 2015-05-13 | 潍柴动力股份有限公司 | A kind of SCR catalytic muffler |
| JP2017075578A (en) * | 2015-10-16 | 2017-04-20 | ヤンマー株式会社 | Exhaust emission control device for vessel |
| CN105649729A (en) * | 2016-03-18 | 2016-06-08 | 山东华盛农业药械有限责任公司 | Low-emission silencer |
| CN105888782A (en) * | 2016-04-08 | 2016-08-24 | 重庆交通大学 | Compound purifying device for diesel engine tail gas |
| CN206972339U (en) * | 2017-06-30 | 2018-02-06 | 江苏大学 | A kind of purifying muffler for being used for 1100 single cylinder diesels |
| CN109578120A (en) * | 2018-09-14 | 2019-04-05 | 天纳克（苏州）排放***有限公司 | Exhaust aftertreatment mixing arrangement |
| CN108979819A (en) * | 2018-09-25 | 2018-12-11 | 清华大学苏州汽车研究院（吴江） | A kind of small-sized universal engine after-treatment system |
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| CN210858888U (en) * | 2019-11-14 | 2020-06-26 | 清华大学苏州汽车研究院（吴江） | Tail gas treatment device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110685781A (en) | 2020-01-14 |
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