CN114320551B - Automobile exhaust muffler device - Google Patents
Automobile exhaust muffler device Download PDFInfo
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- CN114320551B CN114320551B CN202111328664.7A CN202111328664A CN114320551B CN 114320551 B CN114320551 B CN 114320551B CN 202111328664 A CN202111328664 A CN 202111328664A CN 114320551 B CN114320551 B CN 114320551B
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- filter cartridge
- protection ring
- wall
- exhaust muffler
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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Abstract
The invention discloses an automobile exhaust silencer, which comprises a pipe body, wherein the pipe body is connected with a filter cylinder through a protection ring on the inner side, a main filtering channel is formed on the inner side of the filter cylinder, a standby filtering channel is formed between the outer wall of the filter cylinder and the inner wall of the pipe body, when the pressure of tail gas on the filter cylinder is greater than a preset value, the protection ring is broken to enable the standby filtering channel to be turned to an open state from a closed state, through an arranged alarm mechanism, when a filtering mechanism in an exhaust gas treatment device is blocked, the internal resistance of the exhaust gas treatment device is increased, and when the pressure borne by the protection ring arranged in the automobile exhaust silencer is greater than the preset value, the protection ring is broken to enable the standby filtering channel to be opened, the air flow is discharged into a reserved channel, at the moment, the filter cylinder part in an exhaust gas pipeline is disabled, the standby filtering channel is intervened and matched with the filter cylinder to filter the tail gas, so that the tail gas treatment device is actively treated when approaching failure.
Description
Technical Field
The invention relates to an automobile exhaust treatment technology, in particular to an automobile exhaust silencing device.
Background
Among the various noises of automobiles, engine exhaust noise is a particularly high noise. The automobile exhaust silencing device is characterized in that a porous silencing structure is arranged on a tail gas channel to form a resistive silencer. When sound waves enter the resistive muffler, a part of sound energy is rubbed in pores of the porous material and converted into heat energy to be dissipated, so that the sound waves passing through the muffler are weakened. Simultaneously, along with the requirement of environmental protection, also integrate on the present tail gas noise eliminator and have tail gas filtering mechanism, also basically all have on the present automobile exhaust device to eliminate noise and filter two kinds of functions simultaneously promptly.
If the publication number is CN208057213U, the publication date is 20181106, and the name is invention patent of 'an automobile exhaust muffler device', the automobile exhaust muffler device comprises a tail gas pipe and an air outlet pipe, wherein a first groove is arranged above the inner part of the tail gas pipe, a flat pipe is arranged on the left side of the inner part of a water-cooling pipe, a second groove is arranged in the middle of the inner part of the flat pipe, a baffle is arranged on the left side of a medicine box, a clamping column is arranged on the left side of the baffle, a curved pipe is arranged on the right side of the inner part of the water-cooling pipe, a muffler device is arranged inside the curved pipe, a hole pipe is arranged inside the muffler device, a first sound insulation plate is arranged above the inner part of the hole pipe, a hole pipe is arranged on the left side of the air outlet pipe, and a muffler cotton is arranged on the inner surface of the air outlet pipe.
The method for processing tail gas in the prior art comprises regular processing and intelligent reminding, wherein the regular reminding is to carry out maintenance and replacement every thirty thousand kilometers and fifty thousand kilometers, for example, the replacement period of a ternary tail gas filter is generally one hundred thousand kilometers, the intelligent reminding is to set a sensor on an automobile tail gas device to detect airflow pressure, when the airflow pressure is too high, the filtering mechanism is close to failure, and a reminder is displayed on a control screen of an automobile, but the prior art only has the reminding function and has no processing function.
Disclosure of Invention
The invention aims to provide an automobile exhaust muffler device to solve the defects in the prior art.
In order to achieve the above purpose, the invention provides the following technical scheme:
an automobile exhaust muffler device comprises a pipe body, wherein the inner side of the pipe body is connected with a filter cylinder through a protection ring, a main filter channel is formed on the inner side of the filter cylinder, and a standby filter channel is formed between the outer wall of the filter cylinder and the inner wall of the pipe body;
when the pressure of the tail gas on the filter cartridge is larger than a preset value, the protection ring is broken, so that the standby filter channel is turned to an open state from a closed state.
The protective ring is characterized in that the protective ring is provided with a plurality of grooves, and the grooves are arranged on the protective ring.
According to the alarm mechanism arranged in the invention, when the filtering mechanism in the tail gas treatment device is blocked, the internal resistance of the exhaust device is increased, when the pressure borne by the protection ring arranged in the automobile exhaust silencing device is greater than a preset value, the protection ring is broken, the standby filtering channel is opened, the airflow is discharged into the reserved channel, at the moment, the filter cartridge part in the tail gas pipeline fails, the standby filtering channel is intervened and matched with the filter cartridge to filter the tail gas, and thus, the tail gas treatment device is actively treated when the tail gas treatment device is close to fail.
As a preferred embodiment of the present invention, a sound-deadening layer is provided outside the filter cartridge, and the sound-deadening layer is connected to the filter cartridge by a protective ring.
As the preferred embodiment of the invention, the alarm mechanism comprises a fixing ring arranged in the standby filtering channel, and the fixing ring is provided with a whistle mouth.
As a preferred embodiment of the invention, the number of the whistle mouth is multiple.
As a preferred embodiment of the invention, the outer wall of one side of the filter cylinder is provided with an expansion plate, and the outer wall of the expansion plate is provided with a high-temperature-resistant sealing gasket.
As a preferred embodiment of the present invention, a honeycomb filter portion is disposed inside the filter cartridge.
As a preferred embodiment of the invention, the top of the exhaust pipe is provided with a control system.
As a preferred embodiment of the present invention, a temporary filtering mechanism is disposed inside the temporary passage.
In a preferred embodiment of the present invention, the guard ring is made of ceramic or hollow metal, and the noise reduction structure is a multilayer inclined honeycomb noise reduction structure.
As a preferred embodiment of the present invention, the high temperature resistant sealing gasket is of an annular structure, and the high temperature resistant sealing gasket is sleeved on the outer wall of the expansion plate.
In the technical scheme, according to the automobile exhaust muffler device provided by the invention, due to the arrangement of the alarm mechanism, when the filtering mechanism in the exhaust gas treatment device is blocked, the internal resistance of the exhaust device is increased, when the pressure borne by the protection ring arranged in the automobile exhaust muffler device is greater than a preset value, the protection ring is broken, so that the standby filtering channel is opened, the air flow is discharged into the reserved channel, at the moment, the filter cylinder part in the exhaust gas pipeline fails, the standby filtering channel is intervened and matched with the filter cylinder to filter the exhaust gas, and thus, the active treatment is carried out when the exhaust gas treatment device is close to failure.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
Fig. 1 is a schematic front view of an exhaust muffler device for an automobile according to an embodiment of the present invention.
Fig. 2 is a schematic side view of an automotive exhaust muffler device according to an embodiment of the present invention.
Fig. 3 is a schematic view of a nozzle mounting structure of an automobile exhaust muffler device according to an embodiment of the present invention.
Fig. 4 is a schematic perspective view of an exhaust muffler device for an automobile according to an embodiment of the present invention.
Fig. 5 is a schematic diagram of a communication hole structure of an automobile exhaust muffler device according to an embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a silencing structure of an automobile exhaust muffler device according to an embodiment of the present invention.
Fig. 7 is a schematic view of an expanded sound-deadening structure of an automobile exhaust muffler device according to an embodiment of the present invention.
Fig. 8 is a schematic view of a limiting groove of an automobile exhaust muffler device according to an embodiment of the present invention.
Fig. 9 is a schematic view of a partially enlarged structure of a protection ring of an automobile exhaust muffler device according to an embodiment of the present invention.
Fig. 10 is a schematic structural view of a limiting groove and a limiting block of the automobile exhaust muffler device according to an embodiment of the present invention.
Description of the reference numerals:
the device comprises an exhaust pipe 1, a noise reduction structure 2, a temporary passage 3, a filtering mechanism 4, a mounting frame 5, a valve 6, honeycomb plates 7 and 8, an expansion plate 9, a high-temperature-resistant sealing gasket 10, a fixing ring 11, a whistle 12, a standby filtering mechanism 13, an air inlet pipe 14, an air outlet pipe 15, an air pressure sensor 16, a controller 17, a circuit board 18, a main control chip 19, a driving chip 20, a flange 21, a connecting hole 22, a communicating hole 23 and a limiting groove 24.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 10, an automobile exhaust muffler device provided by an embodiment of the present invention includes a pipe body 1, the pipe body 1 is connected to a filter cartridge 4 through a protection ring 9 on an inner side, the inner side of the filter cartridge 4 forms a main filter passage, and a backup filter passage is formed between an outer wall of the filter cartridge 4 and an inner wall of the pipe body 1; when the exhaust pressure is greater than a preset value, the protection ring 9 is broken so that the standby filter channel 3 is turned from a closed state to an open state.
Specifically, the automobile exhaust muffler device provided by the embodiment of the present invention comprises a pipe body 1, a protection ring 9 is arranged inside the pipe body 1, the protection ring 9 is connected with a filter cylinder 4, the protection ring 9 is arranged at one end of the filter cylinder 4, the protection ring 9 is in a closed ring shape, the filter cylinder 4 is sleeved inside the pipe body 1, the inside of the filter cylinder is a main filter passage, a spare filter passage is formed between the outer wall of the filter cylinder 4 and the inner wall of the pipe body 1, one end of the filter cylinder 4 is connected with the inner wall of the pipe body 1 through the protection ring 9, the inner wall of the pipe body, the protection ring and the air inlet part of the cylinder body of the filter cylinder are sequentially connected to form a closed frustum shape, obviously, the middle part and the air outlet part of the cylinder body are also supported on the inner wall of the pipe body through a support structure, preferably, the cylinder body and the support structure are supported in a radial direction and are in sliding fit in an axial direction, that is, once the protection ring is broken, the filter cartridge has a certain axial movement range, wherein the protection ring actually closes the air inlet of the standby filter channel, the protection ring can be a metal ring, a ceramic ring, a plastic ring and the like, and has two key points, one of which is that two sides are respectively connected with the inner wall of the pipe body and the cylinder body of the filter cartridge in a sealing manner, such as welding, sulfur connection and the like, and the other of which can be broken under rated pressure (preset value), obviously, the second point can be obtained through limited experiments, such as that the protection ring is a structure with two thick sides and a thin middle part in the width direction, the breaking force of the thin part is obtained through experiments, the breaking force is the rated pressure for breaking the protection ring, when the automobile exhaust muffler device provided by the embodiment is used, the standby filter channel is closed by the protection ring, and exhaust gas is discharged from the main filter channel, after the main filtering channel is used for a long time, the ventilation gap is reduced due to continuous pollutant adsorption, the air flow resistance is increased, and until a designed filtering critical point is reached, namely the design service life of the filtering cylinder is reached, the pressure of the tail gas on the filtering cylinder is the preset value at the moment, when the pressure value born by the corresponding protecting ring 9 is greater than the preset value, the protecting ring 9 is broken, the standby filtering channel is opened, preferably, the filtering cylinder 4 is axially displaced in the pipe body 1, so that the air inflow of the standby filtering channel is increased, at the moment, the tail gas enters the main filtering channel and enters the standby filtering channel for filtering, as the standby filtering channel is started for the first time, the obvious filtering capability is extremely strong, and the better endurance can be provided for an automobile, for example, for an automobile exhaust silencing device designed to have the endurance of 7 thousands, at the moment, a buffer mileage of two kilometers can be easily provided for a driver to replace and maintain.
In this embodiment, preferably, the preset value is 0.91 to 0.98 times the critical pressure of the exhaust gas on the filter cartridge, and the critical pressure is the airflow pressure of the exhaust gas on the filter cartridge detected when the filter cartridge is operated to reach the designed replacement mileage. The relevant cases are tests under national standard, and optionally, the person skilled in the art also tests under industry standard or international standard, which is common knowledge and can be understood by the person skilled in the art.
In this embodiment, through the alarm mechanism who sets up, when the filtering mechanism in the tail gas treatment device takes place to block up, lead to the internal resistance grow of exhaust apparatus, when the pressure that the protection ring 9 that sets up in the automobile exhaust silencing device bore is greater than the default, assume the default to be 50N, cartridge filter 4 blocks up this moment, when the power that bears is greater than 50N, the protection ring fracture, make reserve filtration passageway open, the air current emits into reservation passageway, cartridge filter part can not be gone into in the tail gas pipeline this moment, reserve filtration passageway intervenes cooperation cartridge filter 4 and filters tail gas, tail gas gets into reserve filtration passageway and can take place sharp-pointed sound through whistle mouth 12, initiatively remind driver's tail gas treatment device to go wrong, avoid the tail gas pipeline to handle passively and discover late, influence automobile engine and tail gas system's normal operating, thereby make the later maintenance cost increase.
In another embodiment provided by the invention, the sound attenuation layer 2 is arranged outside the filter cartridge 4, the sound attenuation layer 2 is attached to the outer wall of the filter cartridge 4, the sound attenuation layer 2 is used for reducing noise generated when exhaust gas passes through, and the sound attenuation layer is of one of a fireproof rock wool structure and a fireproof honeycomb structure, preferably a fireproof rock wool structure. The advantage that so set up lies in, when protection ring 9 broke, tail gas filters through reserve filtration passageway in a large number, and the noise damping layer that lies in the outside of cartridge filter 4 at this moment no longer works, and the tail gas noise of car has taken place obvious change, and this brings two effects, and one of them suggestion effect, the driver can judge the protection ring fracture from this, need change, and it is two to force the change effect, so the driver does not change, in case meet administrative departments such as traffic police, can handle according to this sound change, so force the driver to change.
Furthermore, in another embodiment of the present invention, as shown in fig. 5, the muffler further includes an alarm mechanism for giving an alarm when the protection ring is broken, the alarm mechanism includes a fixing ring 11 and a whistle 12, the fixing ring 11 is used for fixing the whistle 12, the fixing ring 11 and the whistle 12 are located upstream or upstream (preferably upstream with respect to the gas flow direction) of the filter structure in the spare filter passage, the outer wall of one side of the muffler layer 2 is provided with two communication holes 23, the number of the fixing rings 11 is two, the fixing ring 11 is embedded inside the communication holes 23, the inner wall of the fixing ring 11 is embedded with the whistle 12 for fixing the breaking point of the muffler layer 2, and at the same time, the whistle 12 is convenient to install, when the filter cartridge 4 is displaced axially, the communication holes 23 are opened, the gas passing through the whistle 12 generates noise to remind the driver, the outer wall of one side of the filter cartridge 4 is provided with an expansion plate, as shown in the sectional view of fig. 2, and as shown in a partially enlarged view in fig. 5, the shape of the expansion plate is an annular, the outer wall of the high temperature resistant gasket 10 is arranged on one side of the outer wall of the filter cartridge, the high temperature resistant gasket 10 is not to be removed from the inlet of the filter cartridge, and the filter cartridge 10, and the high temperature resistant seal can prevent the false air flow of the filter cartridge 10, and the filter cartridge 10, when the false air flow of the high temperature resistant filter cartridge.
In a further embodiment of the present invention, the number of the whistle 12 is plural, the air inlet end of the whistle 12 is disposed inside the fixing ring 11, the air outlet end of the whistle 12 is disposed outside the fixing ring 11, since the communicating holes are gradually opened to the full in the axial displacement process of the filter cartridge 4, which is equivalent to disposing the whistle 12 on one side or one end of the silencing layer 2, the flow direction of the gas is irregular, and no matter which direction the gas flows out, the whistle 12 can sound through a part of the whistle 12, so as to achieve the warning effect.
In still another embodiment provided by the present invention, as shown in fig. 1 and 4, an air inlet pipe 14 is welded at one end of an exhaust pipe 1, an air outlet pipe 15 is welded at the other end of the exhaust pipe 1, a control system is arranged at the top of the exhaust pipe 1 shown in the figure, the control system comprises a controller 17 installed at the top of the exhaust pipe 1, a circuit board 18 is installed inside the controller 17 through bolts, a main control chip 19 is welded at the top of the circuit board 18, a driving chip 20 is welded at the top of the circuit board 18, an air pressure sensor 16 is arranged inside the exhaust pipe 1, an output end of the air pressure sensor 16 is electrically connected with an input end of the main control chip 19 through a conductive wire, an air pressure sensor 16 is arranged on an inner wall of the air outlet pipe, the main control chip 19 is electrically connected with the air pressure sensor 16 through a conductive wire, and the control system is the prior art, and therefore no further description is given.
In another embodiment of the present invention, the flange 21 is disposed at one end of each of the inlet pipe 14 and the outlet pipe 15, the flange 21 is mainly used for integrally mounting and fixing the exhaust muffler device, and is convenient to detach and maintain, which is not described in detail in the prior art, one end of the temporary passage 3 is communicated with the exhaust port 15, the spare filtering mechanism 13 is disposed inside the temporary passage 3, the spare filtering mechanism 13 may be a honeycomb structure or a rock wool structure, and preferably has a honeycomb structure in order to reduce exhaust resistance, the temporary filtering mechanism blocks the main filtering passage, when the main filtering passage is blocked, the filter cartridge 4 is axially displaced, at this time, the communication hole is opened, and the gas enters the spare filtering passage between the outer wall of the filter cartridge and the inner wall of the pipe body through the whistle 12 to be filtered, and when passing through the whistle 12, noise is generated, so as to remind the user.
In still another embodiment of the present invention, as shown in fig. 6, 7 and 9, the sound-deadening layer 2 is connected with the filter cylinder 4 through a protection ring 9, a sleeve is disposed outside the filter cylinder, the sound-deadening layer 2 is attached to an outer wall of one side of the sleeve 4, the sound-deadening layer 2 is a combined mechanism, the whole structure of the sound-deadening layer 2 is a ring or cylinder structure, the number of the sound-deadening layers is plural, each sound-deadening layer is an arc-shaped plate structure, each sound-deadening layer is a structure extending along an axial direction of the filter cylinder, for example, there are three sound-deadening layers, an arc degree of each sound-deadening layer is 120 degrees, each sound-deadening layer is abutted or spliced with a long side (a side in the axial direction) in sequence to form a cylinder structure to wrap the outside of the sleeve, a stop valve 6 is disposed on an inner wall of each sound-deadening layer, the stop valve 6 is a plate, one end of the stop valve 6 is fixedly connected to the sound-deadening layer, the other end penetrates through a sliding hole in the outer wall of the sleeve and is positioned on the moving stroke of the filter cartridge, when the resistance of the filter cartridge is increased, the tail gas pushes the filter cartridge to apply pressure to the protection ring 9, when the protection ring 9 is broken, the filter cartridge axially moves, the stop valve 6 is stopped on the moving stroke of the filter cartridge, at the moment, the tail gas pushes one end of the filter cartridge to extrude the stop valve 6, when the stop valve 6 is extruded, the stop valve 6 slides in the sliding hole in the wall of the sleeve, the stop valve 6 pushes the noise reduction layer 2 to move when sliding, at the moment, as the butt joint part of the stop valve 6 and the filter cartridge is an inclined plane (the radial section is trapezoidal), the end part of the filter cartridge and the stop valve 6 form a wedge-shaped matched structure, and the limit of the axial movement of the stop valve 6 is added by the sliding hole, so that the stop valve 6 is forced to radially move, and the noise reduction layers 2 are broken and separated from each other by the radial movement of the stop valve 6, the state shown in fig. 7 is formed such that the plurality of sound-deadening layers 2 are away from each other, so that the sound-deadening function of the filter cartridge portion is lost by the sound-deadening layers 2. Meanwhile, in order to guide the movement of the filter cartridge, the inner wall of the sleeve is provided with a plurality of limiting blocks which are distributed in an annular equidistance (central array), the outer wall of the filter cartridge shown in fig. 10 is provided with a plurality of limiting grooves 24 which are distributed in an annular equidistance (central array), the specification of the limiting blocks is matched with the specification of the limiting grooves 24, the initial position of the limiting blocks is positioned at the leftmost end of the limiting grooves 24, when the main filtering channel is blocked in use, and the pressure value born by the protection ring 9 is greater than the preset pressure value, the protection ring 9 is broken, the limiting grooves 24 enable the filter cartridge 4 to axially displace in the pipe body 1 by taking the limiting blocks as fulcrums, the cooperation of the limiting blocks and the limiting grooves 24 can well guarantee that the fulcrums and the limitation of the sliding direction of the filter cartridge are given in the use process, and at the tail gas enters the standby filtering channel for filtering, in the movement, the silencing layer 2 connected with the filter cartridge 4 is broken at the protective ring 9, the filter cartridge 4 axially displaces in the pipe body 1, the tail gas enters the standby filter channel for filtering, the standby filter channel is opened, the air flow is discharged into the standby filter channel, the filter cartridge part in the tail gas pipeline fails at the moment, the standby filter channel is in interference fit with the filter cartridge for filtering the tail gas, the tail gas enters the standby filter channel and generates sharp sound through a whistle, the driver is actively reminded that the tail gas processing device has problems, meanwhile, the silencing layer is separated from the sleeve under the action of the axial force, the filter cartridge 4 axially moves, the shift valves 6 are touched in the moving direction of the filter cartridge, the number of the shift valves 6 is multiple, the shift valves 6 are annular, the shape of the cross section (radial cross section) is trapezoidal (the trapezoidal section is not shown in figure 8), and the shift valves 6 are connected with the silencing layer, shelves valve 6 and sleeve swing joint, this moment under the effect of 4 axial forces of cartridge filter, protection ring 9 fracture, make shelves valve 6 remove to the direction of body 1 inner wall, one side touching shelves valve 6 of cartridge filter, make shelves valve 6 use the cross section to remove to the one side that is close to body 1 again as the horizontal point, make original complete amortization layer 2 of concatenation separate into a plurality of pieces, and leave the gap between, make amortization layer 2 lose effect completely, the noise that produces this moment is bigger, supplementary or joint whistle mouth, remind the user more easily.
In the embodiments of the present invention, the filtering structures in the main filtering channel and the spare filtering channel can refer to the prior art, which is common general knowledge in the field and will not be described in detail.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and are not to be construed as limiting the scope of the invention.
Claims (8)
1. An automobile exhaust muffler device comprises a pipe body (1), and is characterized in that the pipe body is connected with a filter cylinder (4) on the inner side through a protection ring (9), a main filter channel is formed on the inner side of the filter cylinder (4), and a standby filter channel (3) is formed between the outer wall of the filter cylinder and the inner wall of the pipe body (1);
when the pressure of the tail gas on the filter cylinder (4) is larger than a preset value, the protection ring (9) is broken, so that the standby filter channel (3) is turned to an open state from a closed state;
the tail gas pushes the filter cartridge to apply pressure to the protection ring when the resistance of the filter cartridge becomes large, when the protection ring is broken, the filter cartridge moves axially, the stop valve is blocked on the moving stroke of the filter cartridge, one end of the filter cartridge is pushed to extrude the stop valve by the tail gas, when the stop valve is extruded, the stop valve slides in a sliding cartridge hole in the wall of the filter cartridge of the sleeve, when the stop valve slides, the sound-absorbing layer moves, at the moment, the stop valve and the stop valve are in butt joint, and the butt joint of the stop valve and the part of the filter cartridge are in butt joint, so that the radial sliding block valve is in butt joint with each other, and the radial sliding block valve is in butt joint with each other, so that the radial sliding block valve is separated from the radial sliding block hole of the filter cartridge, and the radial sliding block valve is separated from the radial sliding block hole of the filter cartridge.
2. The exhaust muffler device for the automobile according to claim 1, wherein the alarm device comprises a fixing ring (11) disposed in the backup filter passage (3), and a whistle (12) is disposed on the fixing ring (11).
3. The exhaust muffler device for the automobile as claimed in claim 2, wherein the number of the whistle nozzle (12) is plural.
4. The automobile exhaust muffler device according to claim 1, wherein an outer wall of one side of the filter cartridge is provided with an expansion plate, and an outer wall of the expansion plate is provided with a high temperature resistant gasket (10).
5. The exhaust muffler device for the automobile as recited in claim 1, wherein a honeycomb filter portion (8) is provided inside the filter cartridge.
6. The vehicle exhaust muffler device according to claim 1, wherein the backup filter passage (3) is provided with a backup filter mechanism (13) inside.
7. The exhaust muffler device according to claim 1, wherein the material of the protection ring (9) is ceramic or hollow metal.
8. The automobile exhaust muffler device according to claim 4, wherein the high temperature resistant gasket (10) is of an annular structure, and the high temperature resistant gasket (10) is sleeved on the outer wall of the expansion plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111328664.7A CN114320551B (en) | 2021-11-10 | 2021-11-10 | Automobile exhaust muffler device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111328664.7A CN114320551B (en) | 2021-11-10 | 2021-11-10 | Automobile exhaust muffler device |
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| CN114320551A CN114320551A (en) | 2022-04-12 |
| CN114320551B true CN114320551B (en) | 2022-11-18 |
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| CN102159817A (en) * | 2008-09-18 | 2011-08-17 | 洋马株式会社 | Engine device |
| CN104929744A (en) * | 2014-03-20 | 2015-09-23 | 哈利－戴维森摩托车集团有限公司 | Multi-piece muffler housing |
| CN204716368U (en) * | 2015-06-13 | 2015-10-21 | 徐月苗 | A kind of warning sound eliminator for automobile |
| CN105626208A (en) * | 2014-11-05 | 2016-06-01 | 上海狮虎能源科技股份有限公司 | Cylindrical catalyst silencer |
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| DE102008008785A1 (en) * | 2008-02-12 | 2009-08-13 | Man Nutzfahrzeuge Aktiengesellschaft | Device for reducing dibenzo-dioxin, dibenzo-furan and particulate emissions |
| DE102011003019A1 (en) * | 2011-01-24 | 2012-07-26 | Ford Global Technologies, Llc | Particulate filter and method for purifying an exhaust gas stream |
| US20160341298A1 (en) * | 2015-05-21 | 2016-11-24 | Ford Global Technologies, Llc | Transmission Oil Filter Assembly |
| CN105525969B (en) * | 2016-01-09 | 2017-10-27 | 黄育新 | The exhaust purifier of diesel engine of convertible carbon soot particles filter runner |
| CN107288712A (en) * | 2016-04-05 | 2017-10-24 | 华玉娣 | Adjust the exhaust gas filter of the good purification of tail gas resistance |
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2021
- 2021-11-10 CN CN202111328664.7A patent/CN114320551B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102159817A (en) * | 2008-09-18 | 2011-08-17 | 洋马株式会社 | Engine device |
| CN104929744A (en) * | 2014-03-20 | 2015-09-23 | 哈利－戴维森摩托车集团有限公司 | Multi-piece muffler housing |
| CN105626208A (en) * | 2014-11-05 | 2016-06-01 | 上海狮虎能源科技股份有限公司 | Cylindrical catalyst silencer |
| CN204716368U (en) * | 2015-06-13 | 2015-10-21 | 徐月苗 | A kind of warning sound eliminator for automobile |
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| CN114320551A (en) | 2022-04-12 |
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