CN109973191A - A kind of water proof type tailpipe - Google Patents

A kind of water proof type tailpipe Download PDF

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Publication number
CN109973191A
CN109973191A CN201910243322.1A CN201910243322A CN109973191A CN 109973191 A CN109973191 A CN 109973191A CN 201910243322 A CN201910243322 A CN 201910243322A CN 109973191 A CN109973191 A CN 109973191A
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CN
China
Prior art keywords
tailpipe
interior
water proof
proof type
guiding gutter
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
CN201910243322.1A
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Chinese (zh)
Other versions
CN109973191B (en
Inventor
霍雷
李长龙
曹东明
李荣光
郭兴之
韩继武
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.)
Weichai Power Co Ltd
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Weichai Power Co Ltd
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Publication date
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Priority to CN201910243322.1A priority Critical patent/CN109973191B/en
Publication of CN109973191A publication Critical patent/CN109973191A/en
Application granted granted Critical
Publication of CN109973191B publication Critical patent/CN109973191B/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00Exhaust 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
    • F01N13/08Other arrangements or adaptations of exhaust conduits
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00Exhaust 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
    • F01N13/08Other arrangements or adaptations of exhaust conduits
    • F01N13/085Other arrangements or adaptations of exhaust conduits having means preventing foreign matter from entering exhaust conduit

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

The invention discloses a kind of water proof type tailpipe, the outer tailpipe of the interior tailpipe being connected to including the exhaust system with engine and the outside for being set in interior tailpipe, and the top end opening of outer tailpipe are bent to side;The top of interior tailpipe extends to the position of face top end opening, and interior tailpipe is provided with guiding gutter close to the side of top end opening, guiding gutter is used for will be out of, the water that top end opening enters is directed to that interior tailpipe and outer tailpipe are constituted bottom gap;The bottom end of outer tailpipe is provided with drainage hole, and drainage hole is used to drain into the water in bottom gap the outside of outer tailpipe.Above-mentioned water proof type tailpipe, when rain intrusion, due to the presence of guiding gutter, so that rainwater directly passes through guiding gutter and drainage hole drains into the outside of outer tailpipe.Enter engine aftertreatment system to effectively avoid rainwater by tailpipe, reduces after-treatment system failure rate, reduce the maintenance cost of vehicle.

Description

A kind of water proof type tailpipe
Technical field
The present invention relates to engine exhaust tail pipe technical field more particularly to a kind of water proof type tailpipes.
Background technique
It is well known that being directly connected to after tailpipe refers to connection and silencer or after-treatment system with atmosphere Engine component.Four stage of non-rice habitats After-treatment technics are stringenter to waterproof requirement, after forbidding lower rainwater largely to enter Processing, the typically just simple scavenging action of existing tailpipe do not have water-proof function.Currently used water proof type exhaust tail The structure of pipe mostly uses openable protective cover is arranged in the end of the tube body of tailpipe greatly, as depicted in figs. 1 and 2, including The protective cover 20 of exhaust pipe 10 and the end that exhaust pipe 10 is arranged in, wherein Fig. 1 is the structural schematic diagram that protective cover lid closes, Fig. 2 is the structural schematic diagram that protective cover is opened.This kind of structure, although having certain waterproof effect, the service life is poor, protective cover It is opened mainly by post-processing exhaust, protective cover can open frequently, be fallen off for a long time using will cause protective cover;And protective cover is de- Fall behind, the structure will absolutely not protective action, will cause post-processing function failure.
In conclusion how to solve the problems, such as that tailpipe is easy water inlet and influences engine aftertreatment system, it has also become Those skilled in the art's technical problem urgently to be resolved.
Summary of the invention
The object of the present invention is to provide a kind of water proof type tailpipes, influence to start to solve the easy water inlet of tailpipe The problem of machine after-treatment system.
To achieve the goals above, the present invention provides a kind of water proof type tailpipes, including the tail gas system with engine The interior tailpipe and the outer tailpipe in the outside for being set in the interior tailpipe of system connection, and the outer tailpipe Top end opening is bent to side;
The top of the interior tailpipe extends to the position of top end opening described in face, and the interior tailpipe is close The side of the top end opening is provided with guiding gutter, and the guiding gutter is used to the water entered from the top end opening being directed to institute It states in the bottom gap that interior tailpipe and the outer tailpipe are constituted;The bottom end of the outer tailpipe is provided with draining Hole, the drainage hole are used to drain into the water in the bottom gap outside of the outer tailpipe.
Preferably, the guiding gutter is type structure wide at the top and narrow at the bottom.
Preferably, the guiding gutter is the groove body of the internally pressuring shaping directly on the interior tailpipe.
Preferably, the interior tailpipe is additionally provided with annular convex platform close to the position of bottom end, the annular convex platform it is outer Diameter size is adapted with the bottom end internal diameter of the outer tailpipe, and the bottom end of the outer tailpipe is solid by the first clip It is scheduled on the annular convex platform.
Preferably, the bottom end of the outer tailpipe is additionally provided with the of the deformation of the clamping for adapting to first clip One deformation slot.
Preferably, the first deformation slot is corresponded and is connected with the drainage hole.
Preferably, the bottom end of the interior tailpipe is connect by the second clip with the exhaust system, and the interior row The bottom end of gas tail pipe is provided with the second deformation slot of the deformation of the clamping for adapting to second clip.
Preferably, the peripheral surface of the interior tailpipe is additionally provided with uniform cloth in addition to the region for arranging the guiding gutter The gas vent set.
Preferably, the distal opening section of the interior tailpipe is gentle S type section.
Preferably, the open end of the top end opening, which tilts downwards, predetermined angle, and the choosing of the predetermined angle Selecting range is between 5 ° -30 °.
Content is introduced compared to background technique, above-mentioned water proof type tailpipe is connected to including the exhaust system with engine Interior tailpipe and be set in interior tailpipe outside outer tailpipe, and the top end opening of outer tailpipe is to side Bending;The top of interior tailpipe extends to the position of face top end opening, and interior tailpipe is close to the side of top end opening It is provided with guiding gutter, guiding gutter is constituted for the water entered from top end opening to be directed to interior tailpipe with outer tailpipe Bottom gap in;The bottom end of outer tailpipe is provided with drainage hole, and drainage hole is used to the water in bottom gap draining into outlet The outside of gas tail pipe.Above-mentioned water proof type tailpipe will be applied to the engine of diesel-type, therefore its tailpipe is in practical work Be during making it is whole be arranged vertically, it is first after rainwater is entered by the top end opening of outer tailpipe when running into rainy weather It can first hit on the guiding gutter of interior tailpipe, and interior tailpipe is directly directed to by guiding gutter and outer tailpipe is constituted In bottom gap, and due to the presence of guiding gutter, so that rainwater can only avoid rainwater from entering pair of guiding gutter in unilateral side flowing Side is finally drained into the outside of outer tailpipe by the drainage hole that the bottom end of outer tailpipe is arranged.To effectively avoid rain Water enters engine aftertreatment system by tailpipe, reduces after-treatment system failure rate, reduces the maintenance cost of vehicle.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of traditional water proof type tailpipe (conjunction of protective cover lid);
Fig. 2 is the structural schematic diagram of traditional water proof type tailpipe (protective cover unlatching);
Fig. 3 is the external structure schematic diagram of water proof type tailpipe provided in an embodiment of the present invention;
Fig. 4 is the schematic diagram of internal structure of water proof type tailpipe provided in an embodiment of the present invention;
Fig. 5 be interior tailpipe provided in an embodiment of the present invention structural schematic diagram (wherein the part of guiding gutter be cut open Depending on);
Fig. 6 is the A of Fig. 5 to structural schematic diagram;
Fig. 7 is the structural schematic diagram of outer tailpipe provided in an embodiment of the present invention;
Fig. 8 is the schematic illustration of water proof type tailpipe provided in an embodiment of the present invention draining;
Fig. 9 is the schematic illustration of water proof type tailpipe provided in an embodiment of the present invention exhaust.
In figure 1 above and Fig. 2,
Exhaust pipe 10, protective cover 20.
In figure 3 above-Fig. 9,
Interior tailpipe 1, guiding gutter 11, annular convex platform 12, second deform slot 13, gas vent 14, outer tailpipe 2, top End opening 21, drainage hole 22, first deform slot 23, the first clip 3, the second clip 4.
Wherein, in figure 8 above, the water flow that arrow strike line represents draining flows through path;
In figure 9 above, the air-flow that arrow strike line represents exhaust flows through path.
Specific embodiment
Core of the invention is to provide a kind of water proof type tailpipe, influences to start to solve the easy water inlet of tailpipe The problem of machine after-treatment system.
In order to make those skilled in the art more fully understand technical solution provided by the invention, below in conjunction with attached drawing and The present invention is described in further detail for specific embodiment.
As shown in Fig. 3-Fig. 9, a kind of water proof type tailpipe provided in an embodiment of the present invention, including the tail gas with engine The outer tailpipe 2 of the interior tailpipe 1 of system connectivity and the outside for being set in interior tailpipe 1, and the top of outer tailpipe 2 End opening 21 is bent to side;The top of interior tailpipe 1 extends to the position of face top end opening 21, and interior tailpipe 1 The side of top end opening 1 is provided with guiding gutter 11, guiding gutter 11 is used to for the water entered from top end opening 21 being directed to interior In the bottom gap that tailpipe 1 and outer tailpipe 2 are constituted;The bottom end of outer tailpipe 2 is provided with drainage hole 22, draining Hole 22 is used to drain into the water in bottom gap the outside of outer tailpipe 2.
Above-mentioned water proof type tailpipe will be applied to the engine of diesel-type, therefore its tailpipe is in practical work process In be it is whole be arranged vertically, can be hit first when running into rainy weather after rainwater is entered by the top end opening of outer tailpipe On the guiding gutter of interior tailpipe, and it is directly directed between the bottom that interior tailpipe and outer tailpipe are constituted by guiding gutter In gap, and due to the presence of guiding gutter, so that rainwater can only avoid rainwater from entering the opposite side of guiding gutter, most in unilateral side flowing The outside of outer tailpipe is drained by the drainage hole that the bottom end of outer tailpipe is arranged eventually.Pass through to effectively avoid rainwater Tailpipe enters engine aftertreatment system, reduces after-treatment system failure rate, reduces the maintenance cost of vehicle.
What needs to be explained here is that those skilled in the art will readily appreciate that, in order to make tail gas system System can normal exhaust, preset gap should be maintained between interior tailpipe and outer tailpipe.
In some specific embodiments, the specific structure of above-mentioned guiding gutter 11 is type structure wide at the top and narrow at the bottom.By setting The structure of upper wide type is counted into, more facilitates to be located adjacent to the guiding gutter at top end opening position and forms the area that effectively intercepts water, And by being designed to that the structure of lower narrow is to minimize the exhaust due to the internal tailpipe of arrangement of guiding gutter itself Caused by influence, after all in tailpipe carry the degassing function of exhaust treatment system.
In further embodiment, guiding gutter 11 is the groove body of the internally pressuring shaping directly on interior tailpipe 1.Due to interior The pipe fitting that tailpipe sheet is made as relatively thin metal material, thus it is more square by internally pressuring shaping production guiding gutter Just.Of course, it should be understood that being also possible to the common other structures form of those skilled in the art, such as in interior tailpipe On open up groove after, then welding have water guide groove shape groove body in the groove structure.
In some more particular embodiments, in order to facilitate being arranged admittedly between interior tailpipe 1 and outer tailpipe 2 It is fixed, annular convex platform 12, the outer diameter of annular convex platform 12 and outer exhaust are additionally provided with close to the position of bottom end in interior tailpipe 1 The bottom end internal diameter of tail pipe 2 is adapted, and the bottom end of outer tailpipe 2 is fixed on annular convex platform 12 by the first clip 3.When So it is understood that the structure of above-mentioned design annular convex platform is only the embodiment of the present invention for interior tailpipe 1 and outlet Gas tail pipe 2 is arranged the preferable examples of structure, in practical application, can also be that common other of those skilled in the art are arranged Structure type, such as the bottom end of interior tailpipe are provided with the first outside flange, and the bottom end of outer tailpipe is provided with outward The second flange, the mode etc. that the first flange and the second flange are bolted.
In further embodiment, in order to guarantee that interior tailpipe 1 and outer tailpipe 2 are fastened using the first clip When, outer tailpipe 2 has good shrinkage deformation ability, and the bottom end of above-mentioned outer tailpipe 2 is additionally provided with for adapting to the First deformation slot 23 of the clamping deformation of one clip 3.
In further embodiment, in order to enable the processing of drainage hole and the first deformation slot is more convenient, above-mentioned the One deformation slot 23 and drainage hole 22 can be designed to the structure type for corresponding and connecting.On of course, it should be understood that It states and corresponds and the structure type that connects is only the preferable examples of the embodiment of the present invention, in actual application, It can also be the first deformation slot and the individually designed structure type of drainage hole.
It should be noted that in general, in order to which interior tailpipe connect more convenient, above-mentioned interior exhaust with exhaust system The bottom end of tail pipe 1 is connect by the second clip 4 with exhaust system, and the bottom end of interior tailpipe 1 is provided with for adapting to second Second deformation slot 13 of the clamping deformation of clip 4.Of course, it should be understood that above-mentioned be attached by the way of the second clip The only preferable examples of the embodiment of the present invention in actual application, can also be that those skilled in the art are common Other connection structure forms, such as by the way of the fastening of flange fitted bolt, or be direct welded structure form etc..
In some more particular embodiments, the peripheral surface of above-mentioned interior tailpipe 1 is except the area for arranging guiding gutter 11 It is overseas to be additionally provided with the gas vent 14 being evenly arranged.The exhaust resistance of interior tailpipe can effectively be increased by designing gas vent Power, to reduce pressure at expulsion.
In some more particular embodiments, the distal opening section of above-mentioned interior tailpipe 1 is generally preferred to gently S type section, can effectively increase interior tailpipe in this way and be vented outwards the conducting section of tail pipe, to enhance the two Between the permeability that is vented, the case where avoiding blocking generation.
In addition to this, in order to avoid rainwater to enter outer tailpipe as far as possible, the open end of above-mentioned top end opening 21 is general Inclination downwards has predetermined angle, and the range of choice of predetermined angle is between 5 ° -30 °.
Water proof type tailpipe provided by the present invention is described in detail above.It should be noted that this explanation Various embodiments are described in a progressive manner in book, the highlights of each of the examples are with other embodiments not Same place, the same or similar parts between the embodiments can be referred to each other.
It should also be noted that, herein, such as the terms "include", "comprise" or its any other variant are intended to contain Lid non-exclusive inclusion, so that article or equipment including a series of elements not only include those elements, but also It including other elements that are not explicitly listed, or further include for this article or the intrinsic element of equipment.Do not having In the case where more limitations, the element that is limited by sentence "including a ...", it is not excluded that in the article including above-mentioned element Or there is also other identical elements in equipment.
Used herein a specific example illustrates the principle and implementation of the invention, and above embodiments are said It is bright to be merely used to help understand method and its core concept of the invention.It should be pointed out that for the ordinary skill of the art , without departing from the principle of the present invention, can be with several improvements and modifications are made to the present invention for personnel, these improvement It is also fallen within the protection scope of the claims of the present invention with modification.

Claims (10)

1. a kind of water proof type tailpipe, which is characterized in that the interior tailpipe (1) being connected to including the exhaust system with engine With the outer tailpipe (2) in the outside for being set in the interior tailpipe (1), and the top end opening of the outer tailpipe (2) (21) it is bent to side;
The top of the interior tailpipe (1) extends to the position of top end opening described in face (21), and the interior tailpipe (1) side close to the top end opening (1) is provided with guiding gutter (11), and the guiding gutter (11) from the top for that will open The water that mouth (21) enters is directed in the bottom gap that the interior tailpipe (1) and the outer tailpipe (2) are constituted;Institute The bottom end for stating outer tailpipe (2) is provided with drainage hole (22), and the drainage hole (22) is used for the water in the bottom gap Drain into the outside of the outer tailpipe (2).
2. water proof type tailpipe as described in claim 1, which is characterized in that the guiding gutter (11) is type knot wide at the top and narrow at the bottom Structure.
3. water proof type tailpipe as claimed in claim 2, which is characterized in that the guiding gutter (11) is directly described interior The groove body of internally pressuring shaping on tailpipe (1).
4. water proof type tailpipe as described in claim 1, which is characterized in that the interior tailpipe (1) is close to bottom end Position is additionally provided with annular convex platform (12), the bottom end of the outer diameter of the annular convex platform (12) and the outer tailpipe (2) Internal diameter is adapted, and the bottom end of the outer tailpipe (2) is fixed on the annular convex platform (12) by the first clip (3) On.
5. water proof type tailpipe as claimed in claim 4, which is characterized in that the bottom end of the outer tailpipe (2) is also set It is equipped with the first deformation slot (23) of the clamping deformation for adapting to first clip (3).
6. water proof type tailpipe as claimed in claim 5, which is characterized in that first deformation slot (23) and the draining Hole (22) corresponds and connects.
7. water proof type tailpipe as described in claim 1, which is characterized in that the bottom end of the interior tailpipe (1) passes through Second clip (4) is connect with the exhaust system, and the bottom end of the interior tailpipe (1) is provided with for adapting to described second Second deformation slot (13) of the clamping deformation of clip (4).
8. such as water proof type tailpipe of any of claims 1-7, which is characterized in that the interior tailpipe (1) Peripheral surface be additionally provided with the gas vent (14) being evenly arranged in addition to the region for arranging the guiding gutter (11).
9. such as water proof type tailpipe of any of claims 1-7, which is characterized in that the interior tailpipe (1) Distal opening section be gentle S type section.
10. such as water proof type tailpipe of any of claims 1-7, which is characterized in that the top end opening (21) Open end tilt have predetermined angle downwards, and the range of choice of the predetermined angle is between 5 ° -30 °.
CN201910243322.1A 2019-03-28 2019-03-28 Waterproof type tail pipe Active CN109973191B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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CN109973191B CN109973191B (en) 2020-09-29

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113339118A (en) * 2021-07-02 2021-09-03 兴化市富邦机械有限公司 Silencer for motorcycle exhaust pipe and assembly thereof

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Publication number Priority date Publication date Assignee Title
US5170020A (en) * 1991-03-05 1992-12-08 Deere & Company Rainproof exhaust pipe
US5321215A (en) * 1993-05-11 1994-06-14 Nelson Industries, Inc. Vertical exhaust system incorporating a water trap
CN103562512A (en) * 2011-03-24 2014-02-05 凯斯纽荷兰(上海)机械研发有限公司 Exhaust stack pipe cover
JP2014031755A (en) * 2012-08-03 2014-02-20 Unicarriers Corp Exhaust device for vehicle
CN104234803A (en) * 2014-09-26 2014-12-24 深圳中雅机电实业有限公司 Rainproof structure used in silencer and silencer adopting structure
CN104234808A (en) * 2013-06-06 2014-12-24 迪尔公司 Apparatus for an exhaust system
CN104564295A (en) * 2014-12-11 2015-04-29 东风汽车公司 Exhaust and rain-proof cap with drainage and silence structure
CN106285887A (en) * 2016-10-31 2017-01-04 中国舰船研究设计中心 A kind of anti-marine internal combustion engine exhaust apparatus poured water
DE102015112304A1 (en) * 2015-07-28 2017-02-02 Claas Tractor Sas Exhaust train assembly
CN206785469U (en) * 2017-06-17 2017-12-22 邢文清 Portable reverse-filling automobile external blast pipe
CN206903733U (en) * 2017-07-11 2018-01-19 山推工程机械股份有限公司 A kind of engineering machinery engine exhaust structure
CN108223093A (en) * 2017-12-08 2018-06-29 中国北方发动机研究所(天津) A kind of shipboard helicla flute flow-guiding type water channel interlayer smoke exhaust pipe heat insulation structural

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5170020A (en) * 1991-03-05 1992-12-08 Deere & Company Rainproof exhaust pipe
US5321215A (en) * 1993-05-11 1994-06-14 Nelson Industries, Inc. Vertical exhaust system incorporating a water trap
CN103562512A (en) * 2011-03-24 2014-02-05 凯斯纽荷兰(上海)机械研发有限公司 Exhaust stack pipe cover
JP2014031755A (en) * 2012-08-03 2014-02-20 Unicarriers Corp Exhaust device for vehicle
CN104234808A (en) * 2013-06-06 2014-12-24 迪尔公司 Apparatus for an exhaust system
CN104234803A (en) * 2014-09-26 2014-12-24 深圳中雅机电实业有限公司 Rainproof structure used in silencer and silencer adopting structure
CN104564295A (en) * 2014-12-11 2015-04-29 东风汽车公司 Exhaust and rain-proof cap with drainage and silence structure
DE102015112304A1 (en) * 2015-07-28 2017-02-02 Claas Tractor Sas Exhaust train assembly
CN106285887A (en) * 2016-10-31 2017-01-04 中国舰船研究设计中心 A kind of anti-marine internal combustion engine exhaust apparatus poured water
CN206785469U (en) * 2017-06-17 2017-12-22 邢文清 Portable reverse-filling automobile external blast pipe
CN206903733U (en) * 2017-07-11 2018-01-19 山推工程机械股份有限公司 A kind of engineering machinery engine exhaust structure
CN108223093A (en) * 2017-12-08 2018-06-29 中国北方发动机研究所(天津) A kind of shipboard helicla flute flow-guiding type water channel interlayer smoke exhaust pipe heat insulation structural

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113339118A (en) * 2021-07-02 2021-09-03 兴化市富邦机械有限公司 Silencer for motorcycle exhaust pipe and assembly thereof
CN113339118B (en) * 2021-07-02 2022-01-18 兴化市富邦机械有限公司 Silencer for motorcycle exhaust pipe

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