CN108571367A - A kind of exhaust system and the vehicle using the exhaust system - Google Patents
A kind of exhaust system and the vehicle using the exhaust system Download PDFInfo
- Publication number
- CN108571367A CN108571367A CN201710142297.9A CN201710142297A CN108571367A CN 108571367 A CN108571367 A CN 108571367A CN 201710142297 A CN201710142297 A CN 201710142297A CN 108571367 A CN108571367 A CN 108571367A
- Authority
- CN
- China
- Prior art keywords
- gas
- pipeline section
- collet
- exhaust system
- section
- 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
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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
- 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
- F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Exhaust Silencers (AREA)
Abstract
The present invention relates to the vehicles of a kind of exhaust system and the use exhaust system, the exhaust system includes exhaust pipe, exhaust pipe has preceding pipeline section, rear pipeline section and the flexible tube segment between preceding pipeline section and rear pipeline section, the outside of flexible tube segment is equipped with collet flexible, distinguish preceding pipeline section and connected with rear pipeline section in the rear and front end of collet, form accommodating chamber for collecting emergent gas between collet and exhaust pipe, the exhaust system further include one end be connected to the accommodating chamber be used to will escape out gas and guide to the gas-guide tube of home.When leaking air phenomenon, emergent gas enters in accommodating chamber exhaust system in the present invention, and is guided to home by gas-guide tube, far from combustible environment, and then prevents from causing fire incident because of gas leakage.
Description
Technical field
The present invention relates to the vehicles of a kind of exhaust system and the use exhaust system.
Background technology
Car fire event takes place frequently at present, and a portion accident occurrence cause is mainly the failure of car exhaust system and leads
The car spontaneous combustion of cause.High temperature heat source of the exhaust system as vehicle, if being unable to effective protection and isolation, once failure, exhaust system
System gas leakage can become the one of the major reasons for causing vehicle spontaneous combustion.
Car exhaust system includes exhaust pipe, and exhaust pipe is connected between engine and exhaust silencer, and exhaust pipe includes
Preceding pipeline section for being connect with engine supercharger and the rear pipeline section for being connect with silencer, and positioned at preceding pipeline section and rear pipe
Bellows piece between section, bellows piece are otherwise known as flexible tube segment, in order to make exhaust pipe at flexible structure, to absorb
The vibration and impact passed over from engine avoids damage exhaust pipe.Car in the process of running, the gas generated in engine
Body is entered by exhaust pipe in silencer, using being discharged from tailpipe after the processing of silencer.It is well known that exhaust
The gas temperature of tail pipe discharge is very high, in fact, just from engine enter in exhaust pipe and without muffler from
The gas temperature of reason is significantly larger than gas temperature when being discharged from tailpipe.As Authorization Notice No. is CN203248239U
Chinese utility model patent discloses a kind of car exhaust system, and thermal insulation layer is arranged in the outside of the exhaust system exhaust pipe, will be every
The safety for being on the one hand to protect circuit and gas path component around exhaust pipe on the outside of exhaust pipe is arranged in thermosphere, on the other hand
It is to be conducive to reaction of the gas in silencer in this way in order to which the gas made way in exhaust pipe keeps high temperature value.By
This is it is found that temperature of the gas before entering silencer is very high.And the characteristic based on flexible tube segment, flexible tube segment make
The phenomenon that with fatigue fracture is susceptible to after a period of time is the position that safety is more weak in whole gas extraction system, flexible
Once there is slight crack in pipeline section, contacts with the combustible environment of surrounding after the gas effusion of extreme temperatures, will cause in a short time
Fire, especially coach bus, once gas leakage occurs for exhaust pipe, occupant can not also have found in time, it is easy to cause
Fire incident occurs.
Invention content
The purpose of the present invention is to provide a kind of exhaust system, to solve exhaust pipe in the prior art occur it is high after slight crack
The technical issues of effusion of wet body be easy to cause vehicle spontaneous combustion.The present invention also aims to provide a kind of use exhaust system
Vehicle.
To achieve the above object, the technical scheme is that：
A kind of exhaust system, including exhaust pipe, exhaust pipe have preceding pipeline section, rear pipeline section and between preceding pipeline section and rear pipeline sections
Flexible tube segment, the outside of flexible tube segment is equipped with collet flexible, and the front end of collet connect with preceding pipeline section, rear end with manage afterwards
Section connection, forms accommodating chamber for collecting emergent gas between collet and exhaust pipe, the exhaust system further include one end with
The accommodating chamber connection is guided for will escape out gas to the gas-guide tube of home.
The plastic deformation amount of collet is more than the vibrations deflection of flexible tube segment.
Gas-guide tube is equipped with for detecting emergent gas signal and the emergent gas signal detected being passed to alarm system
The sensor of system.
The sensor is cigarette propagated sensation sensor.
There is the gas-guide tube inverted U section, one end of inverted U section to be connect with the collet, and the sensor is set to U
The top of type section.
A kind of vehicle, including vehicle frame and exhaust system, the exhaust system include exhaust pipe, exhaust pipe have preceding pipeline section, after
The outside of pipeline section and the flexible tube segment between preceding pipeline section and rear pipeline section, flexible tube segment is equipped with collet flexible, heat-insulated
The front end of set is connect with preceding pipeline section, and rear end is connect with rear pipeline section, is formed between collet and exhaust pipe for collecting emergent gas
Accommodating chamber, which further includes guiding to home for will escape out gas of being connected to the accommodating chamber of one end
Gas-guide tube.
The plastic deformation amount of collet is more than the vibrations deflection of flexible tube segment.
The vehicle includes alarm system, and gas-guide tube is equipped with the effusion gas for detecting emergent gas signal and detecting
Body signal passes to the sensor of alarm system, and alarm system sends out report after receiving the emergent gas signal that sensor passes are come
Alert signal.
The sensor is cigarette propagated sensation sensor.
There is the gas-guide tube inverted U section, one end of inverted U section to be connect with the collet, and the sensor is set to U
The top of type section.
The beneficial effects of the invention are as follows：Exhaust pipe has preceding pipeline section, rear pipeline section and between preceding pipeline section and rear pipeline section
Flexible tube segment, collet is arranged in the outside of flexible tube segment in the present invention, the both ends of collet respectively with preceding pipeline section and rear pipeline section
Connection forms the accommodating chamber for collecting emergent gas between collet and exhaust pipe, and accommodating chamber is communicated with gas-guide tube, leads
Tracheae guides the emergent gas in accommodating chamber to home, far from combustible environment.Collet plays protection exhaust system week
Enclose the effect of component；When the phenomenon that leaks air, emergent gas enters in accommodating chamber, and is guided to home by gas-guide tube,
Far from combustible environment, and then prevent fire incident.
As a further improvement on the present invention, the plastic deformation amount of collet is more than the vibrations deflection of flexible tube segment, this
The ability that collet will not hinder flexible tube segment to absorb vibrations and impact is arranged in sample on the outside of exhaust pipe.
As a further improvement on the present invention, gas-guide tube is equipped with sensor, and sensor can detect the ease in gas-guide tube
Go out gas signal, the alarm system connection of sensor and vehicle.When leak air phenomenon when, sensor will detect emergent gas
Signal passes to alarm system, and alarm system sends out alarm signal, achievees the purpose that find and handle in time.
As a further improvement on the present invention, sensor is cigarette propagated sensation sensor, and the gas in exhaust pipe is without muffler
Catalytic treatment, smog solubility is higher in gas, compared with other gas flow transducers and temperature sensor, uses cigarette propagated sensation sensor
Detection error is smaller.
Description of the drawings
Fig. 1 is that exhaust system is installed to the structural schematic diagram on vehicle frame in the embodiment of the present invention 1；
Fig. 2 is the left view of Fig. 1.
Specific implementation mode
Embodiments of the present invention are described further below in conjunction with the accompanying drawings.
The specific embodiment 1 of vehicle of the present invention, as shown in Figure 1 to Figure 2, the vehicle provided in the present embodiment are a kind of visitor
Vehicle, including vehicle frame and the exhaust system on vehicle frame, in the present embodiment, exhaust system is mounted on vehicle floor frame 3
Lower position.Exhaust system includes exhaust pipe 2, and exhaust pipe 2 is connected between engine supercharger 1 and silencer 9, exhaust pipe
2 form a gas exhaust piping from engine to silencer, the gas being discharged from engine supercharger 1 by exhaust pipe 2 into
Enter into silencer 9, air is discharged into eventually by tailpipe 10.
Exhaust pipe 2 has preceding pipeline section 21, rear pipeline section 23 and the flexible pipe being connected between preceding pipeline section 21 and rear pipeline section 23
Section 22, the head end of preceding pipeline section 21 is connect with engine supercharger 1, and the end of rear pipeline section 23 is connected by flange arrangement 4 and silencer 9
It connects.Flexible tube segment 22 is bellows piece, and flexible tube segment 22 has certain deformability, flexible so that exhaust pipe
Preceding pipeline section is flexibly connected together with rear pipeline section, in order to absorb the vibrations and impact generated by engine.Flexible tube segment
22 outer cover is equipped with collet 6 flexible, and the rear and front end of collet 6 passes through the front tube of fastening clamp 5 and exhaust pipe respectively
Section and rear pipeline section closely connect, and under the squeezing action of fastening clamp 5, sealing is realized between collet 6 and exhaust pipe lateral wall
Cooperation, is not in gas leak phenomenon, makes to form an accommodating chamber that can collect emergent gas between collet and exhaust pipe, when
When fatigue fracture occurs in flexible tube segment, emergent gas is collected in accommodating chamber.The side of exhaust pipe 2 is equipped with air inlet and accommodates
The gas-guide tube 8 of chamber connection, gas-guide tube 8 guide the emergent gas in accommodating chamber to home, so-called home, that is, separate
The place of combustible object both can be on the outside of vehicle body, or the position of combustible, high-temperature gas be not remote in vehicle chassis
From combustible, and then the fire incident caused by gas leakage is avoided to occur.In the present embodiment, accommodating chamber is connected to gas-guide tube 8
Communicating position is exactly in the surface of accommodating chamber, that is, is located at the highest position of accommodating chamber, is moved upwards using high-temperature gas
Principle, promote high-temperature gas to be rapidly introduced into gas-guide tube 8 from from peak position.It is connected on exhaust pipe 8 for detecting
The cigarette propagated sensation sensor 7 of emergent gas signal, car further include alarm system, and the instrument in car is arranged in the indicator light of alarm system
On platform, cigarette propagated sensation sensor 7 is connect with alarm system, when from emergent gas in exhaust pipe from gas-guide tube 8 by when, can by cigarette sense
Sensor 7 detects that the gas signal detected is passed to alarm system by cigarette propagated sensation sensor 7, and alarm system can send out alarm
Signal, the indicator light flicker on instrument desk, reminds driver's exhaust system to break down, and plays the role of finding in time and processing.
In the present embodiment, there is gas-guide tube 8 inverted U section 81, one end of inverted U section 81 to be connect with collet, and the top of inverted U section 81 is
For the extreme higher position of gas-guide tube, cigarette propagated sensation sensor 7 is set to the top of inverted U section 81, is located at the peak of gas-guide tube, can be as early as possible
Detect emergent gas signal.
In addition, the collet of the present invention is made of silicon dioxide fibre material or silica gel High-SiliconOxygen composites, have
There is the characteristics of high temperature resistant and resistance to air blast are impacted, lateral wall of the collet as accommodating chamber plays heat-insulated effect, can protect
Exhaust system peripheral parts, and high-temperature gas is avoided to ignite combustible around.Meanwhile silicon dioxide fibre material or silica gel
High-SiliconOxygen composites are flexible material, have the advantages that soft, good toughness, when fixing collet 6 using fastening clamp, are ensured
Part of the collet between two fastening clamps has certain plastic deformation surplus, and the plastic deformation amount of collet is more than
The maximum vibrations deflection of flexible tube segment 22, and then ensure that collet 6 will not hamper the work(that exhaust pipe absorbs vibrations and impact
Energy.
In other embodiments, which can also be lorry, car, school bus or caravan.It can be tied tight using steel wire
Realize that collet is connect with exhaust pipe in the both ends of collet.Cigarette propagated sensation sensor may be replaced by gas flow transducer or temperature passes
Sensor.Cigarette propagated sensation sensor can be arranged in any position of gas-guide tube.Alarm system and sensor can not also be set.It is heat-insulated
Set or ripple struction.
The structure of the embodiment of exhaust system of the present invention, exhaust system is for example above-mentioned, and to avoid repeating, details are not described herein.
Claims (10)
1. a kind of exhaust system, including exhaust pipe, exhaust pipe have preceding pipeline section, rear pipeline section and positioned at preceding pipeline section and rear pipeline section it
Between flexible tube segment, it is characterised in that：The outside of flexible tube segment is equipped with collet flexible, and the front end of collet connects with preceding pipeline section
It connects, rear end is connect with rear pipeline section, and the accommodating chamber for collecting emergent gas, the exhaust system are formed between collet and exhaust pipe
Further include guiding to the gas-guide tube of home for will escape out gas of being connected to the accommodating chamber of one end.
2. exhaust system according to claim 1, it is characterised in that：The plastic deformation amount of collet is more than flexible tube segment
Shake deflection.
3. exhaust system according to claim 1 or 2, it is characterised in that：Gas-guide tube is equipped with for detecting emergent gas
Signal and the sensor that the emergent gas signal detected is passed to alarm system.
4. exhaust system according to claim 3, it is characterised in that：The sensor is cigarette propagated sensation sensor.
5. exhaust system according to claim 3, it is characterised in that：The gas-guide tube has inverted U section, inverted U section
One end is connect with the collet, and the sensor is set to the top of inverted U section.
6. a kind of vehicle, including vehicle frame and exhaust system, which includes exhaust pipe, and exhaust pipe has preceding pipeline section, rear pipe
Section and the flexible tube segment between preceding pipeline section and rear pipeline section, it is characterised in that：The outside of flexible tube segment be equipped with it is flexible every
Hot jacket, the front end of collet are connect with preceding pipeline section, and rear end is connect with rear pipeline section, are formed between collet and exhaust pipe for collecting
The accommodating chamber of emergent gas, the exhaust system further include guiding to peace for will escape out gas of being connected to the accommodating chamber of one end
The gas-guide tube of all positon.
7. vehicle according to claim 6, it is characterised in that：The plastic deformation amount of collet is more than the vibrations of flexible tube segment
Deflection.
8. the vehicle described according to claim 6 or 7, it is characterised in that：The vehicle includes alarm system, and gas-guide tube, which is equipped with, to be used
The emergent gas signal detected in detection emergent gas signal and is passed to the sensor of alarm system, alarm system is being received
Alarm signal is sent out after the emergent gas signal come to sensor passes.
9. vehicle according to claim 8, it is characterised in that：The sensor is cigarette propagated sensation sensor.
10. vehicle according to claim 8, it is characterised in that：The gas-guide tube has inverted U section, one end of inverted U section
It is connect with the collet, the sensor is set to the top of inverted U section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710142297.9A CN108571367B (en) | 2017-03-10 | 2017-03-10 | Exhaust system and vehicle using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710142297.9A CN108571367B (en) | 2017-03-10 | 2017-03-10 | Exhaust system and vehicle using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108571367A true CN108571367A (en) | 2018-09-25 |
| CN108571367B CN108571367B (en) | 2023-09-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710142297.9A Active CN108571367B (en) | 2017-03-10 | 2017-03-10 | Exhaust system and vehicle using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108571367B (en) |
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|---|---|---|---|---|
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108571367B (en) | 2023-09-01 |
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