CN113482746A - Motorcycle silencer for catalytic purification of tail gas - Google Patents

Motorcycle silencer for catalytic purification of tail gas Download PDF

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Publication number
CN113482746A
CN113482746A CN202110990469.4A CN202110990469A CN113482746A CN 113482746 A CN113482746 A CN 113482746A CN 202110990469 A CN202110990469 A CN 202110990469A CN 113482746 A CN113482746 A CN 113482746A
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CN
China
Prior art keywords
pipe
protection tube
sleeve
tube
inner protection
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.)
Granted
Application number
CN202110990469.4A
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Chinese (zh)
Other versions
CN113482746B (en
Inventor
产台台
齐雷
李陆斌
陈禹丰
李武
王妙寿
叶青春
张益超
梁宁伟
郑斌
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.)
Zhejiang Zouts Machinery Co ltd
Original Assignee
浙江青鸟机械有限公司
Priority date (The priority date 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 date listed.)
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Priority to CN202110990469.4A priority Critical patent/CN113482746B/en
Publication of CN113482746A publication Critical patent/CN113482746A/en
Application granted granted Critical
Publication of CN113482746B publication Critical patent/CN113482746B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • 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
    • F01N1/24—Silencing apparatus characterised by method of silencing by using 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
    • 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
    • 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
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2882—Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices
    • F01N3/2885—Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices with exhaust silencers in a single housing
    • 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
    • F01N2230/04—Catalytic converters

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Silencers (AREA)

Abstract

The invention discloses a motorcycle muffler for catalytic purification of tail gas, which comprises a tail gas discharge pipe, wherein a conical transition pipe is formed at the tail end of the tail gas discharge pipe, a connecting pipe is formed at the tail end of the transition pipe, an outer protection pipe is sleeved on the connecting pipe, an inner protection pipe with an L-shaped cross section is formed at one end of the outer protection pipe close to the connecting pipe, and the inner protection pipe is inserted and fixed on the connecting pipe; a plurality of cylindrical annular shunt sleeves are inserted into the inner protection tube, and the shunt sleeves divide the channel on the inner side of the inner protection tube into a plurality of annular shunt channels; the shunting sleeve comprises an outer sleeve and an inner sleeve, wherein a diversion ring with a conical cross section is formed at one end of the outer sleeve and one end of the inner sleeve, which are close to the connecting pipe, and the diversion ring is inserted in the connecting pipe. The invention arranges a plurality of annular shunting sleeves in the pipeline, the shunting sleeves separate the inner channel of the pipeline into a plurality of annular channels and can be provided with silencing cotton, the contact area with noise is enlarged, and the silencing effect is improved; meanwhile, the outer wall of the flow distribution sleeve is coated with a catalyst coating, which is beneficial to decomposing harmful gases in tail gas.

Description

Motorcycle silencer for catalytic purification of tail gas
Technical Field
The invention relates to the technical field of motorcycle silencers, in particular to a motorcycle silencer for catalytic purification of tail gas.
Background
A muffler for a motorcycle is a device that allows airflow to pass through to attenuate noise, and is one of important parts on a motorcycle. The existing motorcycle silencer can be divided into three types, namely a resistive silencer, a reactive silencer and an impedance composite silencer, wherein the resistive silencer is used for attenuating noise transmitted along a pipeline along with distance by using the sound absorption function of a sound absorption material or a sound absorption structure so as to achieve the aim of silencing; the reactive muffler reflects sound waves with certain frequencies transmitted along the pipeline back to the direction of a sound source at a sudden position by means of sudden expansion (or contraction) of the section of the pipeline or by-pass resonance cavities, so that the aim of muffling is fulfilled; the impedance composite muffler is formed by combining the muffling principles of a resistive muffler and a reactive muffler through proper structures. The existing resistive silencer of the motorcycle is generally only provided with a layer of silencing material in a pipeline, and the single layer of silencing material is used for silencing, but the silencing effect needs to be improved.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a motorcycle silencer for catalytic purification of tail gas, which is mainly characterized in that a plurality of annular shunting sleeves are arranged in a pipeline, the shunting sleeves divide the inner channel of the pipeline into a plurality of annular channels and can be provided with silencing cotton, the contact area with noise is enlarged, and the silencing effect is improved.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a motorcycle muffler for catalytic purification of tail gas comprises a tail gas discharge pipe on a motorcycle, wherein a conical transition pipe is formed at the tail end of the tail gas discharge pipe, a cylindrical connecting pipe is formed at the tail end of the transition pipe, an outer protection pipe is sleeved on the connecting pipe, one end of the outer protection pipe, which is close to the connecting pipe, is bent and formed with an inner protection pipe with an L-shaped cross section, and the inner protection pipe is inserted and fixed on the connecting pipe; a plurality of cylindrical annular shunt sleeves are inserted into the inner protection pipe, and the shunt sleeves divide the channel on the inner side of the inner protection pipe into a plurality of annular shunt channels; the flow dividing sleeve comprises an outer sleeve and an inner sleeve, wherein a flow guide ring with a conical cross section is formed at one end of the outer sleeve and one end of the inner sleeve close to the connecting pipe, and the flow guide ring is inserted in the connecting pipe; a plurality of supporting sheets are fixedly welded between the adjacent shunting sleeves, a plurality of connecting sheets are fixedly welded on the shunting sleeves on the inner layer and the outer layer of the inner protection tube, and the connecting sheets are fixed on the inner protection tube; one end of the outer protection tube, which is far away from the connecting tube, is formed with a conical air duct, and the tail end of the air duct is formed with an exhaust pipe;
the outer surface of the shunt sleeve is coated with a catalyst coating, the outer sleeve and the inner sleeve on the shunt sleeve are both formed with a plurality of small holes, and heat-resistant sound-absorbing cotton is inserted between the outer sleeve and the inner sleeve of the shunt sleeve and between the outer protection tube and the inner protection tube.
Preferably, a plurality of micropores are formed in the inner protection tube, the micropores are uniformly distributed in an annular shape around the central axis of the inner protection tube, and the central axis of the outer protection tube, the central axis of the shunt sleeve and the central axis of the connecting tube are all on the same straight line.
Preferably, the support sheets between the flow dividing sleeves are parallel to the central axis of the connecting pipe, and the support sheets are uniformly distributed in a ring shape around the central axis of the flow dividing sleeves.
Preferably, the inner protection tube and the shunt sleeve on the inner layer and the outer layer of the inner protection tube are fixed in a mode that a slot penetrating through the end face of one end, close to the connecting tube, of the inner protection tube is formed in the inner protection tube, the cross section of the connecting piece is T-shaped, the connecting piece is inserted into the slot of the inner protection tube in an inserting mode, and the outer end of the connecting piece is inserted in front of the inner protection tube and the outer protection tube; the connecting sheet is parallel to the central axis of the connecting pipe and is propped against the side end surface of the connecting pipe.
Preferably, the inner protection tube and the tail gas discharge tube are fixed by a connecting tube, a fixing ring is fixed to a transition tube insert sleeve of the tail gas discharge tube, a circular support ring is fixed between the inner protection tube and the outer protection tube in a welded mode, a screw is connected to the support ring in a screwed mode, the screw is inserted into the inner protection tube and the outer protection tube, and the tail end of the screw is inserted into the fixing ring.
Preferably, the diameter of the inner wall of the inner protection pipe is equal to that of the outer wall of the connecting pipe, and the length of the inner protection pipe is smaller than that of the outer protection pipe.
Preferably, the length of the shunt sleeve is not greater than the length of the inner protective tube.
The invention has the beneficial effects that:
(1) the pipeline is internally provided with a plurality of annular shunting sleeves, the shunting sleeves divide the inner channel of the pipeline into a plurality of annular channels and can be provided with silencing cotton, the contact area with noise is enlarged, and the silencing effect is improved; meanwhile, the outer wall of the flow distribution sleeve is coated with a catalyst coating, which is beneficial to decomposing harmful gases in tail gas.
(2) The silencer structure of its adoption is convenient for assemble and dismantles, and the maintenance of being convenient for is maintained.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
FIG. 2 is a front view of the present invention;
FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 2;
fig. 4 is a partially sectional perspective view of the invention.
In the figure: 1. a tail gas discharge pipe; 11. a transition duct; 12. a connecting pipe; 2. a flow dividing sleeve; 21. an outer pipe sleeve; 22. an inner sleeve; 23. a flow guide ring; 24. a small hole; 3. a support sheet; 4. connecting sheets; 5. an outer protection tube; 51. an inner protection tube; 52. an air duct; 53. an exhaust pipe; 54. a slot; 6. a support ring; 7. heat-resistant sound-absorbing cotton; 8. a fixing ring; 9. and (4) screws.
Detailed Description
Example (b): as shown in fig. 1 to 4, a motorcycle muffler for catalytic purification of exhaust gas comprises an exhaust gas discharge pipe 1 on a motorcycle, wherein a conical transition pipe 11 is formed at the tail end of the exhaust gas discharge pipe 1, a cylindrical connecting pipe 12 is formed at the tail end of the transition pipe 11, an outer protection pipe 5 is sleeved on the connecting pipe 12, an inner protection pipe 51 with an L-shaped cross section is formed at one end of the outer protection pipe 5 close to the connecting pipe 12 in a bending manner, and the inner protection pipe 51 is inserted and fixed on the connecting pipe 12; a plurality of cylindrical annular shunt sleeves 2 are inserted into the inner protection pipe 51, and the shunt sleeves 2 separate channels on the inner side of the inner protection pipe 51 into a plurality of annular shunt channels; the flow dividing sleeve 2 comprises an outer sleeve 21 and an inner sleeve 22, wherein a flow guide ring 23 with a conical cross section is formed at one end of the outer sleeve 21 and one end of the inner sleeve 22 close to the connecting pipe 12, and the flow guide ring 23 is inserted in the connecting pipe 12; a plurality of supporting sheets 3 are fixedly welded between the adjacent shunt sleeves 2, a plurality of connecting sheets 4 are fixedly welded on the shunt sleeves 2 on the inner layer and the outer layer of the inner protection tube 51, and the connecting sheets 4 are fixed on the inner protection tube 51; a conical air duct 52 is formed at one end of the outer protection tube 5, which is far away from the connecting tube 12, and an exhaust pipe 53 is formed at the tail end of the air duct 52;
the outer surface of the shunt sleeve 2 is coated with a catalyst coating, the outer sleeve 21 and the inner sleeve 22 on the shunt sleeve 2 are both formed with a plurality of small holes 24, and heat-resistant sound-absorbing cotton 7 is inserted between the outer sleeve 21 and the inner sleeve 22 of the shunt sleeve 2 and between the outer protection tube 5 and the inner protection tube 51.
The inner protection tube 51 is formed with a plurality of micropores which are uniformly distributed in a ring shape around the central axis of the inner protection tube 51, and the central axis of the outer protection tube 5, the central axis of the shunt sleeve 2 and the central axis of the connecting tube 12 are all on the same straight line.
The supporting sheets 3 between the flow dividing sleeves 2 are parallel to the central axis of the connecting pipe 12, and the supporting sheets 3 are uniformly distributed around the central axis of the flow dividing sleeves 2 in an annular shape.
The inner protection tube 51 and the shunt sleeve 2 on the inner layer and the outer layer of the inner protection tube 51 are fixed in a way that a slot 54 penetrating through the inner protection tube 51 and close to the end face of one end of the connecting tube 12 is formed in the inner protection tube 51, the cross section of the connecting sheet 4 is T-shaped, the connecting sheet 4 is inserted in the slot 54 of the inner protection tube 51, and the outer end of the connecting sheet 4 is inserted in front of the inner protection tube 51 and the outer protection tube 5; the connecting piece 4 is parallel to the central axis of the connecting tube 12 and abuts against the side end face of the connecting tube 12.
The fixing mode of the inner protection tube 51 and the connecting tube 12 on the tail gas discharge tube 1 is that a fixing ring 8 is fixed on the transition tube 11 of the tail gas discharge tube 1 in an inserting and sleeving manner, a circular support ring 6 is fixed between the inner protection tube 51 and the outer protection tube 5 in a welding manner, a screw 9 is screwed on the support ring 6, the screw 9 is inserted on the inner protection tube 51 and the outer protection tube 5, and the tail end of the screw 9 is inserted on the fixing ring 8.
The inner wall of the inner protection tube 51 has a diameter equal to the outer wall of the connection tube 12, and the length of the inner protection tube 51 is smaller than the length of the outer protection tube 5.
The length of the shunt casing 2 is not greater than the length of the inner protective tube 51.
The working principle is as follows: the invention is a motorcycle muffler for catalytic purification of exhaust gas, the technical point of the muffler is mainly that a plurality of shunting sleeves 2 are arranged in an outer protection tube 5 connected with an exhaust gas discharge tube 1, the shunting sleeves 2 can divide channels in the outer protection tube 5 into a plurality of annular channels, and a catalyst coating is coated on the outer surface of each shunting sleeve 2, so that the contact section with the exhaust gas can be improved, and the purification effect of the exhaust gas is improved;
meanwhile, the structure of the flow sleeve 2 can realize the installation of heat-resistant sound-absorbing cotton 7, realize that the multi-layer annular heat-resistant sound-absorbing cotton 7 is arranged in the channel at the inner side of the outer protection pipe 5, can enlarge the contact surface with noise, improve the noise-absorbing effect and further improve the noise-eliminating efficiency;
the shunting sleeve 2 is connected with an inner protection tube 51 on an outer protection tube 5 in an inserting mode through a T-shaped connecting sheet 4, the outer protection tube 5 is connected with the tail gas discharge tube 1 through a screw 9, when the tail gas discharge tube is disassembled and maintained, the outer protection tube 5 can be taken down only by disassembling the screw 9, and the shunting sleeve 2 is conveniently separated from the outer protection tube 5; the installation and the disassembly are more convenient.
The examples are intended to illustrate the invention, but not to limit it. The described embodiments may be modified by those skilled in the art without departing from the spirit and scope of the present invention, and therefore, the scope of the appended claims should be accorded the full scope of the invention as set forth in the appended claims.

Claims (7)

1. The utility model provides a motorcycle silencer of catalytic purification tail gas, includes tail gas discharge pipe (1) on the motorcycle, and the terminal shaping of tail gas discharge pipe (1) has transition pipe (11) of circular cone type, and the terminal shaping of transition pipe (11) has columniform connecting pipe (12), its characterized in that: an outer protection tube (5) is sleeved on the connecting tube (12), one end of the outer protection tube (5) close to the connecting tube (12) is bent to form an inner protection tube (51) with an L-shaped cross section, and the inner protection tube (51) is fixed on the connecting tube (12) in an inserting and sleeving manner; a plurality of cylindrical annular shunt sleeves (2) are inserted into the inner protection pipe (51), and the shunt sleeves (2) separate channels on the inner side of the inner protection pipe (51) into a plurality of annular shunt channels; the flow dividing sleeve (2) comprises an outer sleeve (21) and an inner sleeve (22), a flow guide ring (23) with a conical cross section is formed at one end of the outer sleeve (21) and one end of the inner sleeve (22) close to the connecting pipe (12), and the flow guide ring (23) is inserted in the connecting pipe (12); a plurality of supporting sheets (3) are welded and fixed between the adjacent shunting sleeves (2), a plurality of connecting sheets (4) are welded and fixed on the inner and outer shunting sleeves (2) of the inner protection pipe (51), and the connecting sheets (4) are fixed on the inner protection pipe (51); one end of the outer protection tube (5) departing from the connecting tube (12) is formed with a conical air duct (52), and the tail end of the air duct (52) is formed with an exhaust tube (53);
the outer surface of the shunting sleeve (2) is coated with a catalyst coating, a plurality of small holes (24) are formed in the outer sleeve (21) and the inner sleeve (22) on the shunting sleeve (2), and heat-resistant sound-absorbing cotton (7) is inserted between the outer sleeve (21) and the inner sleeve (22) of the shunting sleeve (2) and between the outer protection tube (5) and the inner protection tube (51).
2. A motorcycle muffler for catalytic cleaning of exhaust gas according to claim 1, characterized in that: the inner protection tube (51) is provided with a plurality of micropores in a forming mode, the micropores are evenly distributed in an annular mode around the central axis of the inner protection tube (51), and the central axis of the outer protection tube (5), the central axis of the shunt sleeve (2) and the central axis of the connecting tube (12) are all on the same straight line.
3. A motorcycle muffler for catalytic cleaning of exhaust gas according to claim 2, characterized in that: the supporting sheets (3) between the flow dividing sleeves (2) are parallel to the central axis of the connecting pipe (12), and the supporting sheets (3) are uniformly distributed around the central axis of the flow dividing sleeves (2) in an annular shape.
4. A motorcycle muffler for catalytic cleaning of exhaust gas according to claim 2, characterized in that: the inner protection tube (51) and the inner and outer layers of the inner protection tube (51) are fixed in a way that a slot (54) which penetrates through the inner protection tube (51) and is close to the end face of one end of the connecting tube (12) is formed in the inner protection tube (51), the cross section of the connecting sheet (4) is T-shaped, the connecting sheet (4) is inserted into the slot (54) of the inner protection tube (51), and the outer end of the connecting sheet (4) is inserted in front of the inner protection tube (51) and the outer protection tube (5); the connecting piece (4) is parallel to the central axis of the connecting pipe (12) and is abutted against the side end face of the connecting pipe (12).
5. A motorcycle muffler for catalytic cleaning of exhaust gas according to claim 4, characterized in that: the fixed mode that connecting pipe (12) was gone up in inner protection tube (51) and tail gas discharge pipe (1) does, and transition pipe (11) plug bush of tail gas discharge pipe (1) is fixed with solid fixed ring (8), inner protection tube (51) and outer protection tube (5) between welded fastening have circular shape support ring (6), the spiro union has screw (9) on support ring (6), screw (9) insert establish including on protection tube (51) and outer protection tube (5), the end of screw (9) is inserted and is established on solid fixed ring (8).
6. A motorcycle muffler for catalytic cleaning of exhaust gas according to claim 5, characterized in that: the diameter of the inner wall of the inner protection pipe (51) is equal to that of the outer wall of the connecting pipe (12), and the length of the inner protection pipe (51) is smaller than that of the outer protection pipe (5).
7. A motorcycle muffler for catalytic cleaning of exhaust gas according to claim 6, characterized in that: the length of the shunting sleeve (2) is not more than that of the inner protection pipe (51).
CN202110990469.4A 2021-08-26 2021-08-26 Motorcycle silencer for catalytic purification of tail gas Active CN113482746B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110990469.4A CN113482746B (en) 2021-08-26 2021-08-26 Motorcycle silencer for catalytic purification of tail gas

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Application Number Priority Date Filing Date Title
CN202110990469.4A CN113482746B (en) 2021-08-26 2021-08-26 Motorcycle silencer for catalytic purification of tail gas

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CN113482746B CN113482746B (en) 2022-04-12

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2408240Y (en) * 1999-12-30 2000-11-29 林明池 Silenser for vehicles
CN1308181A (en) * 1999-10-20 2001-08-15 德古萨－于尔斯股份公司 Muffler with catalytic device for two-stroke engine and its catalytic device
GB201106679D0 (en) * 2009-03-23 2011-06-01 Vortex Performance Exhausts Ltd An improved exhaust filter
CN102741518A (en) * 2010-02-02 2012-10-17 纳幕尔杜邦公司 Muffler with integrated catalytic converter and polymeric muffler body
CN107965364A (en) * 2016-10-18 2018-04-27 刘荣 Exhaust muffler for motorcycle
CN108561289A (en) * 2018-03-06 2018-09-21 安徽朝祯环保科技有限公司 A kind of exhaust silencer
CN109859731A (en) * 2018-12-13 2019-06-07 盐城得力复合材料有限公司 A kind of wave dissipative muffler

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1308181A (en) * 1999-10-20 2001-08-15 德古萨－于尔斯股份公司 Muffler with catalytic device for two-stroke engine and its catalytic device
CN2408240Y (en) * 1999-12-30 2000-11-29 林明池 Silenser for vehicles
GB201106679D0 (en) * 2009-03-23 2011-06-01 Vortex Performance Exhausts Ltd An improved exhaust filter
CN102741518A (en) * 2010-02-02 2012-10-17 纳幕尔杜邦公司 Muffler with integrated catalytic converter and polymeric muffler body
CN107965364A (en) * 2016-10-18 2018-04-27 刘荣 Exhaust muffler for motorcycle
CN108561289A (en) * 2018-03-06 2018-09-21 安徽朝祯环保科技有限公司 A kind of exhaust silencer
CN109859731A (en) * 2018-12-13 2019-06-07 盐城得力复合材料有限公司 A kind of wave dissipative muffler

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