CN106762066B - Diesel engine tail gas silencing and particle capturing integrated device - Google Patents
Diesel engine tail gas silencing and particle capturing integrated device Download PDFInfo
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- CN106762066B CN106762066B CN201710060052.1A CN201710060052A CN106762066B CN 106762066 B CN106762066 B CN 106762066B CN 201710060052 A CN201710060052 A CN 201710060052A CN 106762066 B CN106762066 B CN 106762066B
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- air inlet
- plate
- silencing
- barrel
- fixing plate
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- 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
- F01N13/02—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 having two or more separate silencers in series
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- 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
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
- F01N3/0233—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles periodically cleaning filter by blowing a gas through the filter in a direction opposite to exhaust flow, e.g. exposing filter to engine air intake
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Processes For Solid Components From Exhaust (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention discloses a diesel engine tail gas silencing and particle capturing integrated device, which comprises a barrel-shaped wall, a silencing mechanism and a particle capturing mechanism, wherein the barrel-shaped wall is provided with a barrel-shaped groove; the lower end of the interior of the barrel-shaped wall is provided with a supporting plate, the upper end of the interior of the barrel-shaped wall is inserted with an air inlet pipe, and the air inlet pipe is communicated with the air inlet chamber; the air inlet chamber is communicated with the first silencing pipe through an air inlet; a second silencing pipe is arranged on the left side of the first silencing pipe; the air inlet pipe, the air inlet chamber, the first silencing pipe and the second silencing pipe form a silencing mechanism; the lower fixing plate is integrated with the upper wall of the air inlet chamber; a plastic burning plate is arranged between the lower fixing plate and the supporting plate; the upper end of the lower fixed plate is sequentially provided with an upper fixed plate and a blowing ring; the blowing ring, the sintering plate, the upper fixing plate and the lower fixing plate form a particle capturing mechanism. The invention has the advantages of high integration level, compact structure, small occupied area and lower production cost; the two-stage noise reduction and multi-layer filtering treatment can effectively improve the noise reduction effect and the particle capture rate of the tail gas of the diesel engine.
Description
Technical Field
The invention relates to an integrated device, in particular to a diesel engine tail gas silencing and particle capturing integrated device, and belongs to the technical field of tail gas treatment equipment.
Background
The diesel engine has low fuel consumption and high torque output, so that the diesel engine is widely applied to the fields of engineering machinery, ships, heavy-duty automobiles and the like, and has high popularization and application rate in the field of foreign cars. With the increasing prominence of environmental problems, emission standards set by various countries are gradually improved, and especially stricter requirements are put on the tail gas noise and particle emission of diesel engines. Although the current diesel engine is equipped with a plurality of processing devices related to exhaust noise and particle emission, the silencer and the particle catcher which are independent functions not only have complex installation, but also occupy larger space, and need further improvement on performance.
Disclosure of Invention
In order to solve the defects of the technology, the invention provides an integrated device for silencing tail gas and capturing particles of a diesel engine.
In order to solve the technical problems, the invention adopts the technical scheme that: a diesel engine tail gas silencing and particle catching integrated device comprises a barrel-shaped wall, a silencing mechanism and a particle catching mechanism; the upper end cover of the barrel-shaped wall is provided with an upper end cover, and the lower end of the barrel-shaped wall is provided with a lower end cover; the upper end cover is provided with an exhaust hole;
a support plate is fixedly arranged at the lower end inside the barrel-shaped wall; a particle storage cavity is arranged between the supporting plate and the lower end cover; an air inlet pipe is horizontally inserted into the upper part of the barrel-shaped wall and is communicated with the air inlet chamber; the air inlet chamber is arranged in the middle of the upper part of the barrel-shaped wall;
the lower end of the air inlet chamber is provided with an air inlet; the lower end of the air inlet is provided with a first silencing pipe, and the air inlet chamber is communicated with the first silencing pipe through the air inlet; the lower end of the first silencing pipe is fixedly arranged on the supporting plate;
a second silencing pipe is arranged on the left side of the first silencing pipe; the upper end of the second silencing pipe is fixedly arranged on the outer wall of the air inlet chamber, the lower end of the second silencing pipe is fixed with the supporting plate and extends into the particle storage cavity after penetrating through the supporting plate; the lower end of the second silencing pipe is fixedly provided with an airflow buffer cover; the airflow buffer cover is provided with a plurality of groove-shaped holes; a plurality of damping holes are formed in the first silencing pipe and the second silencing pipe;
a lower fixing plate is fixedly arranged at the upper end inside the barrel-shaped wall; the lower fixing plate is integrated with the upper wall of the air inlet chamber; a plastic burning plate is arranged between the lower fixing plate and the supporting plate; the plurality of plastic burning plates are arranged into a circle along the inner cavity of the barrel-shaped wall; the plastic-sintered plate is of a multilayer structure, and a sealing high-temperature-resistant coating is arranged on the inner wall of the plastic-sintered plate on the inner layer;
an upper fixing plate is arranged at the upper end of the lower fixing plate; the upper end of the upper fixing plate is provided with a blowing ring; a plurality of vent holes are formed in the upper fixing plate and the blowing ring; the vent holes correspond to the inner cavity of the multilayer sintering plate in position to form a plurality of vent channels; a purifying chamber is arranged between the blowing ring and the upper end cover;
the air inlet pipe, the air inlet chamber, the first silencing pipe and the second silencing pipe form a silencing mechanism together; the silencing mechanism, the lower fixing plate, the supporting plate and the sealed high-temperature-resistant coating form a sealed space to realize a silencing function;
the tail gas of the diesel engine firstly enters an air inlet chamber through an air inlet pipe and then sequentially passes through the action of a first silencing pipe and a second silencing pipe to complete the silencing process; the tail gas after silencing stably enters the particle storage cavity through the groove-shaped hole of the airflow buffer cover;
the blowing ring, the sintering plate, the upper fixing plate and the lower fixing plate form a particle capturing mechanism together; the particle capturing mechanism forms a sealed space with the support plate, the sealed high-temperature-resistant coating and the barrel-shaped wall to realize a particle capturing function;
when the tail gas after noise elimination enters the sintering plate from the particle storage cavity, particles in the tail gas are filtered and retained on the outer surface of the sintering plate; the purified gas after removing the particles ascends along the inner cavity of the sintering plate, then sequentially passes through the vent holes on the upper fixing plate and the blowing ring, enters the purifying chamber and is finally discharged from the vent holes;
one end of the injection ring is provided with a pulse electromagnetic valve; the head of the pulse electromagnetic valve passes through the barrel-shaped wall and is inserted into the inner cavity of the blowing ring; the pulse electromagnetic valve is externally connected with a gas storage device and is used for controlling high-pressure gas to enter the blowing ring at fixed time; high-pressure gas enters the sintering plate through the vent hole at the lower end of the blowing ring and forms a reverse flow field with tail gas which is going upwards in the sintering plate, so that the sintering plate is vibrated, particles filtered and deposited on the sintering plate are shaken off on the lower end cover, and the particles are stored and periodically removed.
The upper end cover and the barrel-shaped wall as well as the lower end cover and the barrel-shaped wall are connected in a threaded manner.
The upper end of the outer side of the injection ring and the lower end of the outer side of the injection ring are respectively provided with an upper snap spring and a lower snap spring, and the injection ring is fixedly connected with the barrel-shaped wall through the upper snap spring and the lower snap spring.
The head of the pulse electromagnetic valve is provided with a joint, and the pulse electromagnetic valve is connected with the inner cavity of the blowing ring through the joint. The upper fixing plate and the lower fixing plate are connected through bolts in a fastening mode. The lower fixing plate corresponds to the structure of the supporting plate.
The invention has the advantages of high integration level, compact structure, small occupied area and lower production cost. In addition, the two-stage noise reduction and multi-layer filtering treatment can effectively improve the noise reduction effect and the particle capture rate of the tail gas of the diesel engine, and have important strategic significance.
Drawings
Fig. 1 is a schematic cross-sectional structure of the present invention.
Figure 2 is a schematic view of the overall structure of the blowing ring of figure 1.
Fig. 3 is a top view of fig. 2.
Fig. 4 is a schematic view of the overall structure of the support plate in fig. 1.
Fig. 5 is a top view of fig. 4.
In the figure: 1. a barrel-shaped wall; 2. an air inlet pipe; 3. an air intake chamber; 4. a bolt; 5. a lower clamp spring; 6. mounting a clamp spring; 7. a blowing ring; 8. an upper end cover; 9. a joint; 10. a pulse electromagnetic valve; 11. an upper fixing plate; 12. a lower fixing plate; 13. sintering the plate; 14. sealing the high-temperature resistant coating; 15. a support plate; 16. a lower end cover; 17. a first silencer duct; 18. a second muffler pipe; 19. an airflow buffer cover; 20. an exhaust hole; 21. a clean room; 22. a particle storage chamber.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 5, the present invention comprises a barrel-shaped wall 1, a sound-deadening mechanism, a particle-catching mechanism; the upper end cover of the barrel-shaped wall 1 is provided with an upper end cover 8, and the lower end is provided with a lower end cover 16; the upper end cover 8 is provided with an exhaust hole 20;
a support plate 15 is fixedly arranged at the lower end inside the barrel-shaped wall 1; a particle storage chamber 22 is provided between the support plate 15 and the lower end cap 16; an air inlet pipe 2 is horizontally inserted into the upper part of the barrel-shaped wall 1, and the air inlet pipe 2 is communicated with an air inlet chamber 3; the air inlet chamber 3 is arranged in the middle of the upper part of the barrel-shaped wall 1;
the lower end of the air inlet chamber 3 is provided with an air inlet; the lower end of the air inlet is provided with a first silencing pipe 17, and the air inlet chamber 3 is communicated with the first silencing pipe 17 through the air inlet; the lower end of the first silencing tube 17 is fixedly arranged on the support plate 15;
a second silencing pipe 18 is arranged on the left side of the first silencing pipe 17; the upper end of the second silencing pipe 18 is fixedly arranged on the outer wall of the air inlet chamber 3, the lower end of the second silencing pipe is fixed with the supporting plate 15, and the second silencing pipe penetrates through the supporting plate 15 and extends into the particle storage cavity 22; the lower end of the second silencing pipe 18 is fixedly provided with an airflow buffer cover 19; the airflow buffer cover 19 is provided with a plurality of groove-shaped holes; a plurality of damping holes are formed in the first silencing pipe 17 and the second silencing pipe 18;
the tail gas of the diesel engine enters from the air inlet pipe 2 and then reaches the air inlet chamber 3, then enters into the first silencing pipe 17 through the air inlet at the lower end of the air inlet chamber 3, then enters into the second silencing pipe 18 through the damping hole, and enters into the particle storage cavity 22 from the groove-shaped hole on the airflow buffer cover 19 after sinking in the second silencing pipe 18.
A lower fixing plate 12 is fixedly arranged at the upper end inside the barrel-shaped wall 1; the lower fixing plate 12 is integrated with the upper wall of the intake chamber 3; a sintering plate 13 is arranged between the lower fixing plate 12 and the supporting plate 15; the plurality of plastic burning plates 13 are arranged into a circle along the inner cavity of the barrel-shaped wall 1; the sintering plate 13 is of a multilayer structure, can diffuse into the tail gas from all directions and filter particles in the tail gas, and has the advantage of strong tail gas particle capture capacity; the inner wall of the inner layer plastic sintered plate is provided with a sealing high temperature resistant coating 14, and the sealing high temperature resistant coating 14 can divide the cavity inside the barrel-shaped wall 1 into an inner sealing chamber and an outer sealing chamber which are respectively used for silencing and capturing tail gas particles;
the upper end of the lower fixing plate 12 is provided with an upper fixing plate 11 which is fastened and connected through a bolt 4; the upper end of the upper fixing plate 11 is provided with a blowing ring 7; a plurality of vent holes are formed in the upper fixing plate 11 and the blowing ring 7; the vent holes correspond to the inner cavities of the multilayer plastic-fired plate in position to form a plurality of vent channels; a purifying chamber 21 is arranged between the blowing ring 7 and the upper end cover 8;
the air inlet pipe 2, the air inlet chamber 3, the first silencing pipe 17 and the second silencing pipe 18 form a silencing mechanism together; the silencing mechanism, the lower fixing plate 12, the support plate 15 and the sealed high-temperature-resistant coating 14 form a sealed space to realize the silencing function;
the tail gas of the diesel engine firstly enters an air inlet chamber 3 through an air inlet pipe 2 and then sequentially passes through the action of a first silencing pipe 17 and a second silencing pipe 18 to complete the silencing process; the tail gas after the noise reduction stably enters the particle storage cavity 22 through a groove-shaped hole of the airflow buffer cover 19;
the blowing ring 7, the sintering plate 13, the upper fixing plate 11 and the lower fixing plate 12 form a particle capturing mechanism together; the particle capturing mechanism, the supporting plate 15, the sealed high-temperature-resistant coating 14 and the barrel-shaped wall 1 form a sealed space to realize a particle capturing function;
when the tail gas after noise elimination enters the sintering plate 13 from the particle storage cavity 22, particles in the tail gas are filtered and retained on the outer surface of the sintering plate; the purified gas after removing the particles goes upward along the inner cavity of the sintering plate 13, then sequentially passes through the vent holes on the upper fixing plate 11 and the blowing ring 7, enters the purifying chamber 21 and is finally discharged from the exhaust holes 20;
one end of the blowing ring 7 is provided with a pulse electromagnetic valve 10; the head of the pulse electromagnetic valve 10 is provided with a joint 9, and the pulse electromagnetic valve 10 penetrates through the barrel-shaped wall 1 through the joint 9 to be connected with the inner cavity of the blowing ring 7; the pulse electromagnetic valve 10 is externally connected with a gas storage device and is used for controlling high-pressure gas to enter the injection ring 7 at fixed time; high-pressure gas enters the burning plate 13 through the vent hole at the lower end of the blowing ring 7 and forms a reverse flow field with tail gas which is going upwards in the burning plate 13, so that the burning plate 13 is vibrated, and particles filtered and deposited on the burning plate 13 are shaken off on the lower end cover 16 for storage and periodic removal.
The upper end cover 8 and the barrel-shaped wall 1, the lower end cover 16 and the barrel-shaped wall 1 are connected in a threaded manner, so that the disassembly and the maintenance are convenient, and the lower end cover 16 needs to be taken down periodically and the accumulated tail gas particles stored in the lower end cover are removed.
The upper end of the outer side of the injection ring 7 and the lower end of the outer side of the injection ring 7 are respectively provided with an upper clamp spring 6 and a lower clamp spring 5, the injection ring 7 is fixedly connected with the barrel-shaped wall 1 through the upper clamp spring 6 and the lower clamp spring 5, and the connection stability of the injection ring 7 and the barrel-shaped wall 1 can be enhanced.
The lower fixing plate 12 has a structure corresponding to that of the support plate 15 except for a hole through which the second muffler pipe 18 does not pass, and the upper and lower portions of the lower fixing plate correspond to each other.
The diesel engine tail gas silencing device and the particle capturing device are integrated into a whole, and the diesel engine tail gas silencing device has the advantages of compact structure, small occupied area and lower production cost. In addition, the diesel engine exhaust gas noise reduction device is provided with the secondary silencing pipe and the multilayer plastic burning plate, has the advantages of good exhaust gas noise reduction effect and high particle capture rate, can adapt to new standards of China for exhaust gas noise and particle emission of diesel engines, and has important strategic significance.
The above embodiments are not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make variations, modifications, additions or substitutions within the technical scope of the present invention.
Claims (6)
1. The utility model provides a diesel engine tail gas amortization and granule catch integrated device which characterized in that: it comprises a barrel-shaped wall (1), a silencing mechanism and a particle catching mechanism; an upper end cover (8) is arranged on the upper end cover of the barrel-shaped wall (1), and a lower end cover (16) is arranged at the lower end; the upper end cover (8) is provided with an exhaust hole (20);
a support plate (15) is fixedly arranged at the lower end of the interior of the barrel-shaped wall (1); a particle storage cavity (22) is arranged between the support plate (15) and the lower end cover (16); an air inlet pipe (2) is horizontally inserted into the upper part of the barrel-shaped wall (1), and the air inlet pipe (2) is communicated with the air inlet chamber (3); the air inlet chamber (3) is arranged in the middle of the upper part of the barrel-shaped wall (1);
the lower end of the air inlet chamber (3) is provided with an air inlet; the lower end of the air inlet is provided with a first silencing pipe (17), and the air inlet chamber (3) is communicated with the first silencing pipe (17) through the air inlet; the lower end of the first silencing pipe (17) is fixedly arranged on the supporting plate (15);
a second silencing pipe (18) is arranged on the left side of the first silencing pipe (17); the upper end of the second silencing pipe (18) is fixedly arranged on the outer wall of the air inlet chamber (3), the lower end of the second silencing pipe is fixed with the supporting plate (15) and penetrates through the supporting plate (15) to extend into the particle storage cavity (22); the lower end of the second silencing pipe (18) is fixedly provided with an airflow buffer cover (19); a plurality of groove-shaped holes are formed in the airflow buffer cover (19); a plurality of damping holes are formed in the first silencing pipe (17) and the second silencing pipe (18);
a lower fixing plate (12) is fixedly arranged at the upper end inside the barrel-shaped wall (1); the lower fixing plate (12) is integrated with the upper wall of the air inlet chamber (3); a sintering plate (13) is arranged between the lower fixing plate (12) and the supporting plate (15); the number of the sintering plates (13) is multiple, and the multiple sintering plates are arranged into a circle along the inner cavity of the barrel-shaped wall (1); the plastic burning plate (13) is of a multilayer structure, and a sealing high-temperature-resistant coating (14) is arranged on the inner wall of the plastic burning plate on the inner layer;
an upper fixing plate (11) is arranged at the upper end of the lower fixing plate (12); the upper end of the upper fixing plate (11) is provided with a blowing ring (7); a plurality of vent holes are formed in the upper fixing plate (11) and the blowing ring (7); the vent holes correspond to the inner cavities of the multilayer plastic-fired plate in position to form a plurality of vent channels; a purifying chamber (21) is arranged between the blowing ring (7) and the upper end cover (8);
the air inlet pipe (2), the air inlet chamber (3), the first silencing pipe (17) and the second silencing pipe (18) jointly form a silencing mechanism; the silencing mechanism, the lower fixing plate (12), the supporting plate (15) and the sealed high-temperature-resistant coating (14) form a sealed space to realize a silencing function;
tail gas of the diesel engine firstly enters an air inlet chamber (3) through an air inlet pipe (2), and then sequentially passes through the action of a first silencing pipe (17) and a second silencing pipe (18) to complete the silencing process; the tail gas after noise reduction stably enters a particle storage cavity (22) through a groove-shaped hole of an airflow buffer cover (19);
the blowing ring (7), the sintering plate (13), the upper fixing plate (11) and the lower fixing plate (12) jointly form a particle capturing mechanism; the particle capturing mechanism, the supporting plate (15), the sealed high-temperature-resistant coating (14) and the barrel-shaped wall (1) form a sealed space to realize a particle capturing function;
when the tail gas after noise elimination enters the sintering plate (13) from the particle storage cavity (22), particles in the tail gas are filtered and retained on the outer surface of the sintering plate; the purified gas after removing the particles ascends along the inner cavity of the sintering plate (13), then sequentially passes through the vent holes on the upper fixing plate (11) and the blowing ring (7), enters the purifying chamber (21), and is finally discharged from the exhaust hole (20);
one end of the blowing ring (7) is provided with a pulse electromagnetic valve (10); the head of the pulse electromagnetic valve (10) penetrates through the barrel-shaped wall (1) and is inserted into the inner cavity of the blowing ring (7); the pulse electromagnetic valve (10) is externally connected with a gas storage device and is used for controlling high-pressure gas to enter the injection ring (7) at regular time; high-pressure gas enters the burning plate (13) through the vent hole at the lower end of the blowing ring (7) and forms a reverse flow field with tail gas which is going upwards in the burning plate (13), so that the burning plate (13) is vibrated, and particles filtered and deposited on the burning plate (13) are shaken off on the lower end cover (16) for storage and periodic removal.
2. The integrated diesel exhaust muffler and particle trap device of claim 1, wherein: the upper end cover (8) and the barrel-shaped wall (1) as well as the lower end cover (16) and the barrel-shaped wall (1) are connected in a threaded manner.
3. The integrated diesel exhaust muffler and particle trap device of claim 1, wherein: the upper end and the lower end of the outer side of the injection ring (7) are respectively provided with an upper clamp spring (6) and a lower clamp spring (5), and the injection ring (7) is fixedly connected with the barrel-shaped wall (1) through the upper clamp spring (6) and the lower clamp spring (5).
4. The integrated diesel exhaust muffler and particle trap device of claim 1, wherein: the head of the pulse electromagnetic valve (10) is provided with a connector (9), and the pulse electromagnetic valve (10) is connected with the inner cavity of the blowing ring (7) through the connector (9).
5. The integrated diesel exhaust muffler and particle trap device of claim 1, wherein: the upper fixing plate (11) and the lower fixing plate (12) are fixedly connected through bolts (4).
6. The integrated diesel exhaust muffler and particle trap device of claim 1, wherein: the lower fixing plate (12) corresponds to the structure of the supporting plate (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710060052.1A CN106762066B (en) | 2017-01-24 | 2017-01-24 | Diesel engine tail gas silencing and particle capturing integrated device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710060052.1A CN106762066B (en) | 2017-01-24 | 2017-01-24 | Diesel engine tail gas silencing and particle capturing integrated device |
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| Publication Number | Publication Date |
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| CN106762066A CN106762066A (en) | 2017-05-31 |
| CN106762066B true CN106762066B (en) | 2022-08-02 |
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| CN201710060052.1A Active CN106762066B (en) | 2017-01-24 | 2017-01-24 | Diesel engine tail gas silencing and particle capturing integrated device |
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Citations (7)
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| US4851015A (en) * | 1987-08-21 | 1989-07-25 | Donaldson Company, Inc. | Muffler apparatus with filter trap and method of use |
| US5063736A (en) * | 1989-08-02 | 1991-11-12 | Cummins Engine Company, Inc. | Particulate filter trap load regeneration system |
| CN1534173A (en) * | 2003-03-28 | 2004-10-06 | 上海江迪数码科技有限公司 | Internal combustion engine waste gas purifying noise suppresor |
| CN2705606Y (en) * | 2004-03-10 | 2005-06-22 | 程炜东 | Purifying and silencing device for IC engine exhaust |
| CN102052123A (en) * | 2009-11-03 | 2011-05-11 | 安星圭 | Automobile-used muffler |
| CN203035308U (en) * | 2013-01-07 | 2013-07-03 | 浙江金飞车辆配件制造有限公司 | Gasoline engine silencer |
| CN104975909A (en) * | 2015-07-08 | 2015-10-14 | 中国船舶重工集团公司第七一九研究所 | Automobile exhaust silencer with air purifying function |
-
2017
- 2017-01-24 CN CN201710060052.1A patent/CN106762066B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4851015A (en) * | 1987-08-21 | 1989-07-25 | Donaldson Company, Inc. | Muffler apparatus with filter trap and method of use |
| US5063736A (en) * | 1989-08-02 | 1991-11-12 | Cummins Engine Company, Inc. | Particulate filter trap load regeneration system |
| CN1534173A (en) * | 2003-03-28 | 2004-10-06 | 上海江迪数码科技有限公司 | Internal combustion engine waste gas purifying noise suppresor |
| CN2705606Y (en) * | 2004-03-10 | 2005-06-22 | 程炜东 | Purifying and silencing device for IC engine exhaust |
| CN102052123A (en) * | 2009-11-03 | 2011-05-11 | 安星圭 | Automobile-used muffler |
| CN203035308U (en) * | 2013-01-07 | 2013-07-03 | 浙江金飞车辆配件制造有限公司 | Gasoline engine silencer |
| CN104975909A (en) * | 2015-07-08 | 2015-10-14 | 中国船舶重工集团公司第七一九研究所 | Automobile exhaust silencer with air purifying function |
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| CN106762066A (en) | 2017-05-31 |
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