CN112253301B - Automobile exhaust silencer with air purification function - Google Patents

Automobile exhaust silencer with air purification function Download PDF

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Publication number
CN112253301B
CN112253301B CN202011151016.4A CN202011151016A CN112253301B CN 112253301 B CN112253301 B CN 112253301B CN 202011151016 A CN202011151016 A CN 202011151016A CN 112253301 B CN112253301 B CN 112253301B
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CN
China
Prior art keywords
exhaust
connecting block
purification
connecting sleeve
exhaust pipe
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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.)
Active
Application number
CN202011151016.4A
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Chinese (zh)
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CN112253301A (en
Inventor
李赵军
叶鹏
钟亭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jinhua Oulun Catalytic Technology Co ltd
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Jinhua Oulun Catalytic Technology Co ltd
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Priority to CN202011151016.4A priority Critical patent/CN112253301B/en
Publication of CN112253301A publication Critical patent/CN112253301A/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K13/00—Arrangement in connection with combustion air intake or gas exhaust of propulsion units
    • B60K13/04—Arrangement in connection with combustion air intake or gas exhaust of propulsion units concerning exhaust
    • 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
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • F01N13/082—Other arrangements or adaptations of exhaust conduits of tailpipe, e.g. with means for mixing air with exhaust for exhaust cooling, dilution or evacuation
    • 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
    • F01N13/14—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 thermal insulation
    • 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
    • F01N13/16—Selection of particular 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
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
    • F01N13/1844—Mechanical joints
    • F01N13/1855—Mechanical joints the connection being realised by using bolts, screws, rivets or the like
    • 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
    • F01N3/022—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 characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
    • 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
    • F01N2230/00—Combination of silencers and other devices
    • F01N2230/02—Exhaust filters
    • 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
    • F01N2370/00—Selection of materials for exhaust purification
    • F01N2370/40—Activated carbon or charcoal
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Exhaust Silencers (AREA)

Abstract

The invention discloses an automobile exhaust muffler with an air purification function, which comprises an exhaust muffler main body arranged on an automobile, wherein an air inlet pipe and an exhaust pipe are arranged on the exhaust muffler main body, an exhaust channel is formed in the exhaust pipe, a branched section is formed in the exhaust channel, a hollow part is arranged on the exhaust pipe, an opening communicated with the exhaust channel is arranged at the hollow part, a connecting block seals the opening, the connecting block is of a floating structure, an inserting plate is arranged on the side surface of the connecting block, the inserting plate is inserted into the exhaust channel, and an inserting piece is fixed on the inserting plate; the exhaust end of the exhaust passage is provided with a detachable purification device. The invention can purify the automobile exhaust, improves the safety of exhaust emission and promotes the environmental protection.

Description

Automobile exhaust silencer with air purification function
Technical Field
The invention relates to the field of automobile exhaust mufflers, in particular to an automobile exhaust muffler with an air purification function.
Background
The automobile silencer is a part for reducing noise generated when an engine of a motor vehicle works, and because the length difference value of the two pipelines is equal to half of the wavelength of sound waves emitted by the automobile, the two lines of sound waves interfere with each other to offset each other when being superposed, so that the sound intensity is weakened, the sound is reduced, and the silencing effect is achieved.
The existing automobile silencer is generally connected with an exhaust pipe of an automobile, so that the noise generated when the automobile exhausts exhaust can be effectively reduced.
However, the existing automobile silencer has defects and poor purification effect on tail gas; the structure is unstable after installation; sundries are easy to adhere to the exhaust pipe.
Disclosure of Invention
The invention aims to solve the technical problem of an automobile exhaust silencer with an air purification function.
The invention is realized by the following technical scheme: an automobile exhaust muffler with an air purification function comprises an exhaust muffler main body arranged on an automobile, wherein an air inlet pipe and an exhaust pipe are arranged on the exhaust muffler main body, an exhaust channel is formed in the exhaust pipe, a branched section is formed in the exhaust channel, a hollow part is arranged on the exhaust pipe, an opening communicated with the exhaust channel is formed in the exhaust pipe, a matched connecting block is arranged in the hollow part, the connecting block is of a floating structure, an inserting plate is arranged on the side surface of the connecting block and inserted into the exhaust channel, and an inserting piece is fixed on the inserting plate; the exhaust end of the exhaust passage is provided with a detachable purification device.
As preferred technical scheme, the connecting block is made for ageing-resistant rubber, and the surface of connecting block is provided with thermal barrier coating, is provided with sealed cavity in the connecting block, and in the cavity extended to the picture peg, helium was stored in the cavity.
As the preferred technical scheme, the branch section is arranged around the connecting block, and the surface of the exhaust pipe is provided with a heat insulation coating.
As the preferred technical scheme, the surface of blast pipe is provided with the screw thread section, be provided with the external screw thread on the screw thread section, purifier includes the adapter sleeve, the adapter sleeve adopts high temperature resistant metal to make, the surface of adapter sleeve is provided with thermal-insulated coating, the inner wall of adapter sleeve is provided with and external screw thread assorted internal thread, the adapter sleeve cover is established on the blast pipe through the screw thread meshing, the junction of blast pipe and adapter sleeve is provided with the sealing washer, the adapter sleeve is connected with the purification bag, be provided with in the purification bag and the exhaust passage purification chamber that switches on mutually, it is fixed with the filter layer to purify the intracavity.
As a preferred technical scheme, the purification bag is made of an anti-aging colloid material, a heat insulation coating is arranged on the surface of the purification bag, and the filter layer comprises an active carbon filter screen fixed in the purification cavity through screws.
As the preferred technical scheme, the inserting sheet is a metal inserting sheet, and the surface of the inserting sheet is provided with a heat insulation coating.
The invention has the beneficial effects that:
1. the invention can purify the automobile exhaust, improves the safety of exhaust emission and promotes the environmental protection;
2. the device for purifying the tail gas has simple structure, convenient disassembly and low cost;
3. the exhaust pipe is not easy to be blocked, so that the possibility of maintenance is reduced;
4. the blast pipe installation is more stable, and is difficult not hard up.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is an overall block diagram of the present invention;
FIG. 2 is a structural cross-sectional view of a connecting block of the present invention;
fig. 3 is a structural view of the purification apparatus of the present invention.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
This specification includes any features disclosed in the appended claims, abstract and drawings, which are, unless expressly stated otherwise, replaceable with other equivalent or similarly purposed alternative features. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
In the description of the present invention, it is to be understood that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "central", "end", "length", "outer end", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.
Further, in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
The use of terms such as "upper," "above," "lower," "below," and the like in describing relative spatial positions herein is for the purpose of facilitating description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The spatially relative positional terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented 90 degrees or at other orientations and the spatially relative descriptors used herein interpreted accordingly.
In the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "sleeved," "connected," "penetrating," "plugged," and the like are to be construed broadly, e.g., as a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1 to 3, the exhaust muffler comprises an exhaust muffler body 1 mounted on an automobile, an air inlet pipe 2 and an exhaust pipe 3 are arranged on the exhaust muffler body 1, an exhaust passage 311 is formed in the exhaust pipe 3, a branched section 312 is formed in the exhaust passage 311, a hollow part is formed in the exhaust pipe 3, a connecting block is arranged at the hollow part, a part of the connecting block is bonded and fixed in the hollow part, an opening communicated with the exhaust passage 311 is arranged at the exhaust pipe 3, the connecting block 5 seals the opening, the connecting block 5 is of a floating structure, an inserting plate 6 is arranged on the side surface of the connecting block 5, the inserting plate 6 is inserted into the exhaust passage 311, and an inserting piece 7 is fixed on the inserting plate 6; a detachable purification device 8 is attached to the exhaust end of the exhaust passage 311.
The connecting block 5 is made of ageing-resistant rubber, a heat insulation coating is arranged on the surface of the connecting block 5, a sealed cavity 511 is formed in the connecting block 5, the cavity 511 extends into the inserting plate 6, and helium gas is stored in the cavity 511, so that the connecting block is convenient to float.
Wherein, the branch section 312 is arranged around the connecting block 5, and the surface of the exhaust pipe 3 is provided with a thermal insulation coating.
The surface of the exhaust pipe 3 is provided with a thread section, the thread section is provided with an external thread, the purification device 8 comprises a connecting sleeve 811, the connecting sleeve 811 is made of high-temperature-resistant metal, the surface of the connecting sleeve 811 is provided with a heat insulation coating, the inner wall of the connecting sleeve 811 is provided with an internal thread matched with the external thread, the connecting sleeve 811 is sleeved on the exhaust pipe 3 and is meshed with the external thread, a sealing ring is arranged at the joint of the exhaust pipe 3 and the connecting sleeve 811, the connecting sleeve 811 is connected with a purification bag 812, a purification cavity 813 communicated with the exhaust passage 311 is arranged in the purification bag 812, and a filter layer 816 is fixed in the purification cavity 813. The purifying device is mainly engaged through threads, and is convenient to detach and maintain. The connecting sleeve can be reinforced by a screw when necessary.
Wherein, purifying bag 812 adopts ageing-resistant glue material to make, and the surface of purifying bag 812 is provided with thermal barrier coating, and filter layer 816 includes the active carbon filter screen of fixing in purifying chamber 813 through the screw, filters tail gas through the filter screen, plays purifying effect.
Wherein, inserted sheet 7 is the metal inserted sheet, and the surface of inserted sheet 7 is provided with thermal barrier coating, and the inserted sheet can remove along with the removal of picture peg for impurity in the blast pipe is difficult for piling up to adhere to.
When the technical scheme is used, tail gas is discharged to the external environment after passing through the exhaust channel, the bifurcation section and the purification device.
Purifier can carry out filtration purification to tail gas, and the particulate matter in the tail gas is blockked by the filter screen and is preserved in the purification intracavity of purifying bag. The whole purification device is simple to disassemble, and substances in the purification cavity can be taken out at the later stage.
The connecting block is made of colloid materials and can be tightly attached to an automobile during installation, so that the installation stability of the exhaust pipe is improved.
Helium is filled in the whole connecting block, so that the connecting block is easy to float and drives the inserting plate and the inserting piece to move. So that the inserting plate and the inserting sheet move in the exhaust passage, and impurities are not easy to accumulate and attach in the exhaust passage.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.

Claims (4)

1. The utility model provides a car exhaust silencer with air purification function, is provided with intake pipe (2) and blast pipe (3) including installing exhaust silencer main part (1) on the car on exhaust silencer main part (1), its characterized in that: an exhaust channel (311) is formed in the exhaust pipe (3), a branched section (312) is formed in the exhaust channel (311), a hollow part is arranged on the exhaust pipe (3), an opening communicated with the exhaust channel (311) is formed in the exhaust pipe (3), a connecting block (5) is arranged in the hollow part, the connecting block (5) is of a floating type structure, an inserting plate (6) is arranged on the side surface of the connecting block (5), the inserting plate (6) is inserted into the exhaust channel (311), and an inserting piece (7) is fixed on the inserting plate (6); a detachable purification device (8) is arranged at the exhaust end of the exhaust channel (311); the surface of the exhaust pipe (3) is provided with a thread section, the thread section is provided with an external thread, the purification device (8) comprises a connecting sleeve (811), the connecting sleeve (811) is made of high-temperature-resistant metal, the surface of the connecting sleeve (811) is provided with a heat-insulating coating, the inner wall of the connecting sleeve (811) is provided with an internal thread matched with the external thread, the connecting sleeve (811) is sleeved on the exhaust pipe (3) and is meshed with the connecting sleeve (811) through the thread, a sealing ring is arranged at the joint of the exhaust pipe (3) and the connecting sleeve (811), the connecting sleeve (811) is connected with a purification bag (812), a purification cavity (813) communicated with an exhaust channel (311) is arranged in the purification bag (812), and a filter layer (816) is fixed in the purification cavity (813); the connecting block (5) is made of ageing-resistant rubber, a heat-insulating coating is arranged on the surface of the connecting block (5), a sealed cavity (511) is arranged in the connecting block (5), the cavity (511) extends into the inserting plate (6), and helium is stored in the cavity (511).
2. The automobile exhaust muffler with an air purifying function according to claim 1, characterized in that: the branched section (312) is arranged around the connecting block (5), and the surface of the exhaust pipe (3) is provided with a heat insulation coating.
3. The automobile exhaust muffler with an air purifying function according to claim 1, characterized in that: the purification bag (812) is made of an anti-aging colloid material, a heat insulation coating is arranged on the surface of the purification bag (812), and the filter layer (816) comprises an activated carbon filter screen fixed in the purification cavity (813) through screws.
4. The automobile exhaust muffler with an air purifying function according to claim 1, characterized in that: the inserting sheet (7) is a metal inserting sheet, and the surface of the inserting sheet (7) is provided with a heat insulation coating.
CN202011151016.4A 2020-10-24 2020-10-24 Automobile exhaust silencer with air purification function Active CN112253301B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011151016.4A CN112253301B (en) 2020-10-24 2020-10-24 Automobile exhaust silencer with air purification function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011151016.4A CN112253301B (en) 2020-10-24 2020-10-24 Automobile exhaust silencer with air purification function

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CN112253301A CN112253301A (en) 2021-01-22
CN112253301B true CN112253301B (en) 2022-08-12

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206144627U (en) * 2016-10-25 2017-05-03 湖州新兴汽车部件有限公司 Purification type car noise eliminator
CN106762075A (en) * 2017-01-13 2017-05-31 湖北瑞宇汽车科技有限公司 A kind of novel environment friendly automobile exhaust pipe
CN206346807U (en) * 2016-11-30 2017-07-21 焦宏涛 The purifier that a kind of pilotless automobile blast pipe is used
CN207485526U (en) * 2017-12-03 2018-06-12 深圳市亚优特科技有限公司 A kind of eco-friendly car exhaust pipe
CN207583478U (en) * 2017-11-29 2018-07-06 无锡贺邦金属制品有限公司 A kind of high-temperature-resistant exhaust pipe
CN108278150A (en) * 2018-01-26 2018-07-13 季梅 A kind of motor-vehicle tail-gas noise reduction purifying processor
CN208252192U (en) * 2018-06-06 2018-12-18 河北冀拖农业机械制造有限公司 A kind of tractor muffler
CN208564716U (en) * 2018-08-01 2019-03-01 北京海斯特科技有限公司 A kind of automobile tail gas exhaust device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206144627U (en) * 2016-10-25 2017-05-03 湖州新兴汽车部件有限公司 Purification type car noise eliminator
CN206346807U (en) * 2016-11-30 2017-07-21 焦宏涛 The purifier that a kind of pilotless automobile blast pipe is used
CN106762075A (en) * 2017-01-13 2017-05-31 湖北瑞宇汽车科技有限公司 A kind of novel environment friendly automobile exhaust pipe
CN207583478U (en) * 2017-11-29 2018-07-06 无锡贺邦金属制品有限公司 A kind of high-temperature-resistant exhaust pipe
CN207485526U (en) * 2017-12-03 2018-06-12 深圳市亚优特科技有限公司 A kind of eco-friendly car exhaust pipe
CN108278150A (en) * 2018-01-26 2018-07-13 季梅 A kind of motor-vehicle tail-gas noise reduction purifying processor
CN208252192U (en) * 2018-06-06 2018-12-18 河北冀拖农业机械制造有限公司 A kind of tractor muffler
CN208564716U (en) * 2018-08-01 2019-03-01 北京海斯特科技有限公司 A kind of automobile tail gas exhaust device

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