CN117514418A - Exhaust and pollution discharge muffler for internal combustion engine - Google Patents
Exhaust and pollution discharge muffler for internal combustion engine Download PDFInfo
- Publication number
- CN117514418A CN117514418A CN202311620676.6A CN202311620676A CN117514418A CN 117514418 A CN117514418 A CN 117514418A CN 202311620676 A CN202311620676 A CN 202311620676A CN 117514418 A CN117514418 A CN 117514418A
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- China
- Prior art keywords
- pipe
- noise reduction
- muffler
- exhaust
- gas
- 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
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 25
- 238000005192 partition Methods 0.000 claims abstract description 15
- 239000011358 absorbing material Substances 0.000 claims abstract description 5
- 238000009434 installation Methods 0.000 claims description 11
- 238000010521 absorption reaction Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 5
- 238000009795 derivation Methods 0.000 claims description 2
- 230000003247 decreasing effect Effects 0.000 claims 1
- 230000030279 gene silencing Effects 0.000 abstract description 29
- 238000000034 method Methods 0.000 abstract description 12
- 239000007789 gas Substances 0.000 description 48
- 239000012535 impurity Substances 0.000 description 14
- 230000000694 effects Effects 0.000 description 9
- 230000002035 prolonged effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 239000002912 waste gas Substances 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 230000003584 silencer Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 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
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
- F01N1/10—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling in combination with sound-absorbing materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention discloses an exhaust and pollution discharge muffler of an internal combustion engine, which comprises a silencing pipe, wherein the silencing pipe is a cylindrical pipe, and a collecting pipe is arranged in an air inlet of the silencing pipe; the tail end of the collecting pipe is connected with a silencing assembly, the silencing assembly comprises an air duct, a noise reduction pipe, a partition plate and a delivery pipe, the air duct is a reducing spiral pipe, one end of the air duct is communicated with the collecting pipe, the other end of the air duct is communicated with the noise reduction pipe, the noise reduction pipe is a spiral pipe and made of sound absorbing materials, the partition plate is fixedly connected to one end, close to an air outlet, inside the silencing pipe, of the silencing pipe, the silencing pipe is divided into a silencing space and a delivery space, one end of the delivery pipe is communicated with the noise reduction pipe, and the other end of the delivery pipe is vertically and fixedly connected to the partition plate; the one side that falls the pipe of making an uproar is located the below has offered a plurality of drain, the drain is inside to be provided with and derives the subassembly. The invention prolongs the moving distance of the gas, and continuously makes the gas mutually collide in the moving process, reduces the charging energy and reduces the generated noise.
Description
Technical Field
The invention relates to the technical field of internal combustion engines, in particular to an exhaust and pollution discharge muffler for an internal combustion engine.
Background
An internal combustion engine is a heat engine that burns fuel inside the engine and directly converts heat energy emitted from the fuel into power, and a large amount of exhaust gas is generated during the combustion of the fuel, and it is necessary to effectively discharge the exhaust gas, so as to reduce noise generated during the exhaust.
Chinese patent CN105569773a discloses an exhaust muffler for a diesel or internal combustion engine. In a silencing and noise reducing device at exhaust outlets of various diesel engines or internal combustion engines, end face sealing plates and inner reinforcing rib plates are welded at two ends of a silencing pipeline; the silencing pipeline is provided with a product name plate, an airflow direction marker, a pollution discharge nut and a screw plug.
The above-mentioned muffler needs to filter the discharge to the granule in the waste gas in the use, but above-mentioned muffler is filtering the in-process of discharge to the granule and can't guarantee filterable effect, causes simultaneously to block up easily, influences exhaust efficiency.
Disclosure of Invention
The invention aims to solve the defects that in the prior art, the filtering effect cannot be ensured in the process of filtering and discharging particles, and meanwhile, the blockage is easy to cause and the exhaust efficiency is influenced.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the exhaust and pollution discharge muffler of the internal combustion engine comprises a silencing pipe, wherein the silencing pipe is a cylindrical pipe, an air inlet and an air outlet with diameters smaller than the pipe diameters are respectively arranged at two ends of the silencing pipe, and a collecting pipe is arranged in the air inlet of the silencing pipe;
the collecting pipe tail end is connected with a silencing assembly, the silencing assembly comprises an air duct, a noise reduction pipe, a partition plate and a delivery pipe, the air duct is a reducing spiral pipe, one end of the air duct is communicated with the collecting pipe, the other end of the air duct is communicated with the noise reduction pipe, the noise reduction pipe is a spiral pipe and made of sound absorbing materials, the partition plate is fixedly connected to one end, close to an air outlet, inside the silencing pipe, of the silencing pipe, the silencing pipe is divided into a silencing space and a delivery space, one end of the delivery pipe is communicated with the noise reduction pipe, the other end of the delivery pipe is vertically and fixedly connected to the partition plate, and the delivery pipe is communicated with the delivery space;
the utility model discloses a noise reduction pipe, including the pipe that falls, the pipe that falls is located the one side of below and has offered a plurality of drain, the inside derivation subassembly that is provided with of drain, derive the subassembly and include installation pipe and telescopic block, installation pipe fixed mounting is inside the drain, the telescopic block passes through the telescopic link and installs inside the installation pipe, the telescopic block upper end is conical.
Preferably, an elastic tube is arranged between adjacent spirals of the noise reduction tube, two ends of the elastic tube are communicated with the noise reduction tube, and the elastic tube is a folding tube and made of sound absorption materials.
Preferably, a stretching assembly is vertically arranged on the partition plate and used for stretching the space between the spirals of the noise reduction pipe.
Preferably, the stretching assembly comprises a mounting column, sliding rings, connecting strips and a spring tube, wherein the mounting column is vertically and fixedly connected to the center of the partition plate and coincides with the axial lead of the noise reduction tube, the two sliding rings are respectively and fixedly connected to two ends of the spring tube to form a stretching piece, the plurality of stretching pieces are sleeved on the mounting column, the two connecting strips are respectively and fixedly connected to the upper end and the lower end of the sliding rings, and the other end of the connecting strips is connected with the inner wall of the noise reduction tube.
Preferably, the diameter of the two ends of the collecting pipe is larger than that of the middle part, and one end of the collecting pipe, which is close to the air duct, is provided with a closed port and is communicated with the air duct.
Preferably, the noise reduction ring is arranged in the noise reduction space, the noise reduction ring is made of sound absorption materials, the bottom of the noise reduction ring is provided with a collecting tank, and the noise reduction ring is positioned under the sewage outlet.
Preferably, the air outlet of the silencing pipe is a bucket-shaped outlet, and an air distribution assembly is arranged in the guiding-out space and used for dispersing air.
Preferably, the gas distribution assembly comprises a gas distribution ring and a fixing block, wherein the gas distribution rings with different diameters are mutually sleeved, the diameter of the gas distribution ring is small and positioned in the gas distribution ring, and the fixing block is fixedly connected between the gas distribution rings and used for fixing the gas distribution rings.
Preferably, the distances between the gas distributing rings are different, and the distances between two adjacent gas distributing rings are gradually reduced from outside to inside.
Compared with the prior art, the invention has the beneficial effects that:
1. the spiral air duct and the noise reduction tube can effectively reduce impact force generated when the air is exhausted, the noise reduction tube is arranged in an extending mode, the moving distance of the air can be prolonged, the air can be impacted with each other continuously in the moving process, energy charging is reduced, and generated noise is reduced;
2. in the air guide process, a large amount of impurities fall below the noise reduction pipe due to the impact effect of air, so that the impurities are accumulated, finally, the collected impurities are discharged through a sewage outlet, and in the discharge process, the installation pipe is exposed through the movable telescopic block, so that the impurities are guided out;
3. when the gas flow is large, in order to ensure the dispersion and noise reduction of the gas, the elastic pipe is stretched by the stretching assembly, so that the elastic pipe is prolonged, the screw pitch between the noise reduction pipes is changed, the moving length of the gas is prolonged, and the air flow with large flow is effectively absorbed and noise reduced;
4. the gas distribution assembly is used for dispersing gas, and the gas for noise reduction and impurity removal treatment is completed, and is separated and guided out through the gas distribution assembly, so that the gas exhaust effect is improved.
Drawings
FIG. 1 is a schematic diagram of the front structure of an exhaust muffler for an internal combustion engine;
FIG. 2 is a cross-sectional view of an exhaust muffler for an internal combustion engine according to the present invention;
FIG. 3 is a schematic diagram of the front structure of a muffler assembly of an exhaust muffler for an internal combustion engine according to the present invention;
FIG. 4 is a schematic view of the back side structure of a muffler assembly of an exhaust and exhaust muffler for an internal combustion engine according to the present invention;
fig. 5 is a schematic diagram of a gas separation assembly of an exhaust and pollution discharge muffler for an internal combustion engine according to the present invention.
In the figure: 1 silencer pipe, 2 collecting pipe, 3 silencer component, 31 air duct, 32 noise reducing pipe, 33 baffle, 34 leading-out pipe, 4 leading-out component, 41 mounting pipe, 42 expansion block, 5 elastic pipe, 6 stretching component, 61 mounting column, 62 sliding ring, 63 connecting strip, 64 spring pipe, 7 noise reducing ring, 8 air distributing component, 81 air distributing ring, 82 fixing block.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
The terms such as "upper", "lower", "left", "right", "middle" and "a" and the like are also used herein for descriptive purposes only and are not intended to limit the scope of the invention for which the invention may be practiced or for which the relative relationship may be altered or modified without materially altering the technology.
Referring to fig. 1-5, an exhaust and pollution discharge muffler for an internal combustion engine comprises a muffler pipe 1, wherein the muffler pipe 1 is a cylindrical pipe, two ends of the muffler pipe are respectively provided with an air inlet and an air outlet with caliber smaller than that of the pipe, a collecting pipe 2 is arranged in the air inlet of the muffler pipe 1, waste gas required to be combusted is led in through the air inlet, collected through the collecting pipe 2, muffling treatment is carried out in the muffler pipe 1, and finally the waste gas is led out from the air outlet;
the tail end of the collecting pipe 2 is connected with a silencing assembly 3, the silencing assembly 3 comprises an air duct 31, a noise reduction pipe 32, a partition plate 33 and a lead-out pipe 34, the air duct 31 is a reducing spiral pipe, one end of the air duct 31 is communicated with the collecting pipe 2, the other end of the air duct is communicated with the noise reduction pipe 32, the noise reduction pipe 32 is a spiral pipe and made of sound absorbing materials, the partition plate 33 is fixedly connected to one end, close to an air outlet, of the inside of the silencing pipe 1, the silencing pipe 1 is divided into a silencing space and a lead-out space, one end of the lead-out pipe 34 is communicated with the noise reduction pipe 32, the other end of the lead-out pipe is vertically and fixedly connected to the partition plate 33, the lead-out pipe is communicated with the lead-out space, impact force generated during gas discharge can be effectively reduced through the spiral air duct 31 and the noise reduction pipe 32, the movement distance of gas can be prolonged through the noise reduction pipe 32 which is arranged in an extending way, and the gas is continuously impacted with each other during movement, energy charging is reduced, and noise is reduced;
the one side that falls the pipe 32 of making an uproar lies in the below has offered a plurality of drain, the drain is inside to be provided with and to derive subassembly 4, derive subassembly 4 and including installation tube 41 and flexible piece 42, installation tube 41 fixed mounting is inside the drain, flexible piece 42 is inside installation tube 41 through the telescopic link, flexible piece 42 upper end is conical, at the air guide in-process, because gaseous striking effect, a large amount of impurity falls to fall the pipe 32 below of making an uproar, cause piling up of impurity, finally discharge the impurity of collecting through the drain, at the discharge in-process, expose installation tube 41 through the flexible piece 42 of removal, thereby derive the impurity.
In the embodiment of the above technical scheme, the exhaust gas which needs to be burnt is led in through the air inlet, the exhaust gas is collected through the collecting pipe 2, the noise reduction treatment is carried out in the noise reduction pipe 1, finally, the exhaust gas is led out from the air outlet, the impact force generated during the gas exhaust can be effectively reduced through the spiral air guide pipe 31 and the noise reduction pipe 32, the moving distance of the gas can be prolonged through the noise reduction pipe 32 which is arranged in an extending mode, the gas is continuously impacted mutually in the moving process, the energy is reduced, the generated noise is reduced, in the air guide process, a large amount of impurities fall below the noise reduction pipe 32 due to the impact effect of the gas, the impurities are accumulated, finally, the collected impurities are discharged through the drain, and the mounting pipe 41 is exposed through the moving telescopic block 42 in the discharging process, so that the impurities are led out.
According to the preferred technical scheme in the embodiment, the elastic tubes 5 are arranged between adjacent spirals of the noise reduction tube 32, two ends of each elastic tube 5 are communicated with the noise reduction tube 32, each elastic tube 5 is a folded tube and made of a sound absorbing material, in order to disperse and guide out gas, the noise reduction tubes 32 are communicated through the plurality of elastic tubes 5, so that the guided gas impacts the flowing gas, the impact force of the gas is reduced, the noise generated in the moving process of the gas is reduced, and when the gas flow is large, elastic stretching can be performed, so that the gas absorption effect is improved;
the stretching assembly 6 is vertically arranged on the partition plate 33, the stretching assembly 6 is used for stretching the interval between the spirals of the noise reduction pipes 32, when the gas flow is large, the elastic pipes 5 are stretched through the stretching assembly 6 in order to ensure the dispersion and noise reduction of the gas, so that the pitch between the noise reduction pipes 32 is changed, the moving length of the gas is prolonged, and the effective absorption and noise reduction treatment is carried out on the air flow with large flow;
the stretching assembly 6 comprises a mounting column 61, sliding rings 62, connecting strips 63 and a spring tube 64, wherein the mounting column 61 is vertically and fixedly connected to the center of the partition plate 33 and coincides with the axial lead of the noise reduction tube 32, the two sliding rings 62 are respectively and fixedly connected to the two ends of the spring tube 64 to form a stretching piece, a plurality of stretching pieces are sleeved on the mounting column 61, the two connecting strips 63 are respectively and fixedly connected to the upper end and the lower end of the sliding rings 62, the other end of the stretching piece is connected with the inner wall of the noise reduction tube 32, when the elastic tube 5 is stretched, the spring tube 64 in the middle is influenced by electrifying, so that the spring tube 64 is controlled to stretch, the two sliding rings 62 with changed spacing drive the two connecting strips 63 to slide, so that the noise reduction tube 32 and the elastic tube 5 are stretched, and the pitch of the noise reduction tube 32 is changed;
the diameter of the two ends of the collecting pipe 2 is larger than that of the middle part, one end, close to the air duct 31, of the collecting pipe 2 is closed and communicated with the air duct 31, and the diameter of the two ends of the collecting pipe 2 is larger than that of the middle part, so that gas can be conveniently collected, positioned and exported, the imported gas is collected, expanded and discharged, and the impact of the gas is avoided;
the noise reduction ring 7 is arranged in the noise reduction space, the noise reduction ring 7 is made of a sound absorption material, the bottom of the noise reduction ring 7 is provided with a collecting groove and is positioned right below the sewage outlet, the noise reduction ring 7 improves the absorption of the sound in the noise reduction pipe 1, and the noise reduction effect is improved;
the air outlet of the silencing pipe 1 is a bucket-shaped outlet, an air distribution assembly 8 is arranged in the guiding-out space, the air distribution assembly 8 is used for dispersing air to finish noise reduction and impurity removal treatment, and the air is separated and guided out through the air distribution assembly 8, so that the air discharging effect is improved;
the air distribution assembly 8 comprises air distribution rings 81 and fixed blocks 82, wherein a plurality of air distribution rings 81 with different diameters are sleeved with each other, the air distribution rings 81 with small diameters are positioned in the air distribution assembly, the fixed blocks 82 are fixedly connected among the air distribution rings 81 and used for fixing the air distribution rings 81, and the air distribution rings 81 divide the air subjected to noise reduction treatment, so that the air is smoothly led out;
the space between the gas distributing rings 81 is different, the space between two adjacent gas distributing rings 81 is gradually reduced from outside to inside, and the space between the gas distributing rings 81 positioned at the outer side is larger than the space inside because less gas is collected at the outer side, so that the effective division of the gas is ensured.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (9)
1. The exhaust and pollution discharge muffler of the internal combustion engine comprises a muffler pipe (1), and is characterized in that the muffler pipe (1) is a cylindrical pipe, an air inlet and an air outlet with diameters smaller than the pipe diameter are respectively arranged at two ends of the muffler pipe, and a collecting pipe (2) is arranged in the air inlet of the muffler pipe (1);
the collecting pipe (2) tail end connection has amortization subassembly (3), amortization subassembly (3) include air duct (31), fall and make an uproar pipe (32), baffle (33) and delivery tube (34), air duct (31) are reducing spiral pipe, and one end and collecting pipe (2) intercommunication, and the other end and fall and make an uproar pipe (32) intercommunication, fall and manage (32) and be the spiral pipe, and make by inhaling sound material, baffle (33) fixed connection is at the inside one end that is close to the gas outlet of amortization pipe (1), separates amortization pipe (1) into amortization space and export space, delivery tube (34) one end and fall and manage (32) intercommunication, and the perpendicular fixed connection of other end is on baffle (33), communicates with the export space;
the utility model discloses a noise reduction pipe, including pipe (32) and flexible piece (42), including pipe (41) and flexible piece (42), the pipe (42) of making an uproar falls, a plurality of drain has been seted up to the one side that falls that pipe (32) are located the below, the inside derivation subassembly (4) that is provided with of drain, derive subassembly (4) including installation pipe (41) and flexible piece (42), installation pipe (41) fixed mounting is inside the drain, flexible piece (42) are installed inside installation pipe (41) through the telescopic link, flexible piece (42) upper end is conical.
2. An exhaust and pollution discharge muffler for an internal combustion engine according to claim 1, wherein an elastic tube (5) is provided between adjacent spirals of the noise reduction tube (32), both ends of the elastic tube (5) are communicated with the noise reduction tube (32), and the elastic tube (5) is a folded tube and made of a sound absorbing material.
3. An exhaust and blow-down muffler for an internal combustion engine according to claim 1, wherein the partition plate (33) is vertically provided with a stretching assembly (6), and the stretching assembly (6) is used for stretching the interval between the spirals of the noise reduction pipe (32).
4. An exhaust and pollution discharge muffler for an internal combustion engine according to claim 3, wherein the stretching assembly (6) comprises a mounting column (61), sliding rings (62), connecting strips (63) and a spring tube (64), the mounting column (61) is vertically and fixedly connected to the center of the partition plate (33) and coincides with the axial lead of the noise reduction tube (32), two sliding rings (62) are respectively and fixedly connected to two ends of the spring tube (64) to form a stretching piece, a plurality of stretching pieces are sleeved on the mounting column (61), two connecting strips (63) are respectively and fixedly connected to the upper end and the lower end of the sliding rings (62), and the other end of the connecting strips is connected with the inner wall of the noise reduction tube (32).
5. An exhaust and blow-down muffler for an internal combustion engine according to claim 1, wherein the diameter of both ends of the collecting pipe (2) is larger than the diameter of the middle part, and one end of the collecting pipe (2) close to the air duct (31) is provided as a closed port and is communicated with the air duct (31).
6. The exhaust and pollution discharge muffler for an internal combustion engine according to claim 1, wherein a noise reduction ring (7) is arranged in the noise reduction space, the noise reduction ring (7) is made of a sound absorption material, and a collecting tank is arranged at the bottom of the noise reduction ring and is positioned under the pollution discharge outlet.
7. An exhaust and blow-down muffler for an internal combustion engine according to claim 1, characterized in that the air outlet of the muffler pipe (1) is provided as a bucket-shaped outlet, and that a gas-dividing assembly (8) is provided inside the lead-out space, said gas-dividing assembly (8) being adapted to disperse the gas.
8. The exhaust and pollution discharge muffler for an internal combustion engine according to claim 7, wherein the gas distribution assembly (8) comprises a gas distribution ring (81) and a fixing block (82), the gas distribution rings (81) with different diameters are sleeved with each other, the diameters of the gas distribution rings are small, and the fixing block (82) is fixedly connected between the gas distribution rings (81) and used for fixing the gas distribution rings (81).
9. An exhaust and blow-down muffler for an internal combustion engine according to claim 8, wherein the interval between the gas distributing rings (81) is different, and the interval between two adjacent gas distributing rings (81) is gradually decreased from outside to inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311620676.6A CN117514418A (en) | 2023-11-30 | 2023-11-30 | Exhaust and pollution discharge muffler for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311620676.6A CN117514418A (en) | 2023-11-30 | 2023-11-30 | Exhaust and pollution discharge muffler for internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117514418A true CN117514418A (en) | 2024-02-06 |
Family
ID=89745483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311620676.6A Pending CN117514418A (en) | 2023-11-30 | 2023-11-30 | Exhaust and pollution discharge muffler for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117514418A (en) |
-
2023
- 2023-11-30 CN CN202311620676.6A patent/CN117514418A/en active Pending
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