CN106640314A - Multi-segment type exhaust pipe structure - Google Patents
Multi-segment type exhaust pipe structure Download PDFInfo
- Publication number
- CN106640314A CN106640314A CN201611260651.XA CN201611260651A CN106640314A CN 106640314 A CN106640314 A CN 106640314A CN 201611260651 A CN201611260651 A CN 201611260651A CN 106640314 A CN106640314 A CN 106640314A
- Authority
- CN
- China
- Prior art keywords
- pipe
- exhaust
- exhaust pipe
- pipes
- exhaust pipes
- 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.)
- Pending
Links
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
-
- 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
- F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
- F01N13/1811—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration
- F01N13/1816—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration the pipe sections being joined together by flexible tubular elements only, e.g. using bellows or strip-wound pipes
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention discloses a multi-segment type exhaust pipe structure. The multi-segment type exhaust pipe structure comprises tail-end exhaust pipes located at the two sides of an array. Multiple middle exhaust pipes are arranged between the two tail-end exhaust pipes. One or more pressurization exhaust pipes are further arranged between the two tail-end exhaust pipes. A pressurizer gas outlet is formed in the wall face of each pressurization exhaust pipe. Each pressurization exhaust pipe is arranged between every two adjacent middle exhaust pipes. The tail-end exhaust pipes, the middle exhaust pipes and the pressurization exhaust pipes are connected with one another through metal corrugated pipes. According to the multi-segment type exhaust pipe structure, the exhaust pipes are connected into a whole by welding the metal corrugated pipes; complete sealing is achieved at connection positions of the exhaust pipes; inter-pipe leakage of the exhaust pipes is completely eradicated; the metal corrugated pipes can extend and contract freely; the influence of thermal deformation of the exhaust pipes is eliminated; and damage to exhaust pipe gaskets is reduced, and thus the service life of each exhaust pipe gasket is prolonged.
Description
Technical field
The invention belongs to technical field of engines, specifically a kind of multisection type engine exhaust tubular construction.
Background technology
With engine reinforcing and technology upgrading, the delivery temperature of commercial vehicle engine, braking power and exhaust back pressure are not
Disconnected to be lifted, engine exhaust system sealing property faces the challenge of HTHP.At present, existing upright 6 cylinder commercial vehicle engine
Adopting three stage structure, segmentation junction to carry out using the structural shape that metallic packing ring and annular groove coordinate close gas exhaust piping more
Envelope, can not realize fully sealing between this kind of structural tube and pipe, and under HTHP applying working condition, its sealing property compares
Difference.During engine cold-start, gas leak phenomenon is more serious.Especially for medium and heavy, heavy-duty commercial vehicle diesel engine,
Engine braking application increases, and braking power is constantly lifted, in the case that exhaust back pressure is continuously increased, using metallic packing ring
The gas leak phenomenon of three-stage exhaust pipe structure will be more serious.Meanwhile, three-stage blast pipe is affected by engine exhaust high temperature
The thermal deformation of generation is larger, and blast pipe frequently deforms（Thermal expansion, cold events）Exhaust pipe gasket can be extruded, causes exhaust pipe pad
The damage of piece, causes exhaust manifold and cylinder cap faying face gas leakage.
Without special exhaust processor filtration treatment, the waste gas of leakage is by pollutant atmosphere for the gas of blast pipe leakage.
And when using engine braking, the leakage of blast pipe will cause to be vented the reduction of overpressure, and ultimately result in braking work
The decline of rate, reduces the performance of engine braking.
The content of the invention
The purpose of the present invention is to overcome the deficiencies in the prior art, there is provided a kind of multisection type exhaust pipe of engine knot
Structure, by the bellows connected mode using hermetically sealed welding, can effectively solve the problem that the problem of the exhaust gas leakage under HTHP,
Guarantee normally using for engine braking.Meanwhile, by using multisection type exhaust pipe structure, dividing completely between each exhaust manifold
Open, the big problem of effectively solving blast pipe deflection, reduce the squeezing action to exhaust pipe gasket, exhaust pipe gasket can be extended
Service life.
According to the technical scheme that the present invention is provided：
Multisection type exhaust pipe structure, including the tail end venting pipe positioned at array both sides, sets between described two tail end venting pipes
Some sections of intermediate exhaust pipes are equipped with, at least one section pressurized exhaust gas pipe are additionally provided between two tail end venting pipes, in the increasing
Booster gas outlet is provided with the wall of pressure tracheae, the pressurized exhaust gas pipe is arranged at the adjacent intermediate exhaust of any two
Between pipe, the tail end venting pipe, it is attached by metal bellows between intermediate exhaust pipe, pressurized exhaust gas pipe.
As a further improvement on the present invention, the metal bellows and tail end venting pipe, intermediate exhaust pipe, pressurized exhaust gas
Pipe is tightly connected using welding manner.
As a further improvement on the present invention, the tail end venting pipe, intermediate exhaust pipe, pressurized exhaust gas pipe both ends it is equal
The flange of an annular is provided with, the equal top pressure in axial two ends of the metal bellows is on the opposite face of two neighboring flange.
As a further improvement on the present invention, it is provided with an adpting flange on the booster gas outlet.
As a further improvement on the present invention, it is provided with the tail end venting pipe, intermediate exhaust pipe, pressurized exhaust gas pipe
For the engaging lug being fixedly connected with engine.
As a further improvement on the present invention, the metal bellows is made of copper.
Multisection type exhaust pipe structure of the present invention by blast pipe using metal bellows welding by being connected to become one
Individual entirety, blast pipe junction is realized fully sealing, and has prevented the leakage between blast pipe Guan Yuguan.Simultaneously metal bellows can
Freely to stretch, the impact of the thermal deformation that blast pipe is produced is eliminated, the infringement to exhaust pipe gasket is reduced, so as to the row of extending
The service life of tracheae pad, eliminates the gas leak phenomenon between exhaust manifold and cylinder cap faying face.
In addition, when blast pipe gas outlet flange position needs adjustment, need to only pass through the welding of adjustment and intermediate exhaust pipe
Order is capable of achieving, and can reduce the value volume and range of product of parts peculiar, can effectively reduce production cost, while lifting engine
The supporting convenience of car load.
Description of the drawings
Fig. 1, Fig. 2, Fig. 3 are the structural representation of the present invention.
Specific embodiment
With reference to concrete accompanying drawing, the invention will be further described.
Multisection type exhaust pipe structure, including the tail end venting pipe 1 positioned at array both sides, in described two tail end venting pipes 1）
Between be provided with some sections of intermediate exhaust pipes 1, at least one section pressurized exhaust gas pipe 3 is additionally provided between two tail end venting pipes 1,
Booster gas outlet is provided with the wall of the pressurized exhaust gas pipe 3, it is adjacent that the pressurized exhaust gas pipe 3 is arranged at any two
Intermediate exhaust pipe 1 between, the tail end venting pipe 1, intermediate exhaust pipe 1, pressurized exhaust gas pipe 3, between pass through metal bellows 4
It is attached, the tail end venting pipe 1, intermediate exhaust pipe 1, the both ends of pressurized exhaust gas pipe 3 are provided with the convex of annular
Edge, the equal top pressure in axial two ends of the metal bellows is on the opposite face of two neighboring flange.
The metal bellows is adopted with tail end venting pipe 1, intermediate exhaust pipe 1, pressurized exhaust gas pipe 3 and metal bellows 4
Welding manner is tightly connected.
As shown in Figure 1：For six cylinder engine, the multisection type engine exhaust tubular construction includes two sections of tail end venting pipes
1st, 2, one section of three sections of intermediate exhaust pipes Intermediate Gray booster gas outlet flange blast pipe 3 and five sections of metal bellows 4 etc..And
Intermediate exhaust pipe 2 is consistent with Intermediate Gray gas outlet flange 3 design lengths of blast pipe, can arbitrarily adjust the order of connection.
As shown in Figure 2：For four cylinder engine, the multisection type engine exhaust tubular construction includes two sections of tail end venting pipes
1st, 2, one section of one section of intermediate exhaust pipe Intermediate Gray booster gas outlet flange blast pipe 3 and three sections of metal bellows 4 etc..And
Intermediate exhaust pipe 2 is consistent with Intermediate Gray gas outlet flange 3 design lengths of blast pipe, can exchange the order of connection.
As shown in Figure 3：Blast pipe is attached and sealing with metal bellows 4 by circumference soldering.
Claims (6)
1. multisection type exhaust pipe structure, is characterized in that：Including the tail end venting pipe positioned at array both sides（1）, at described two ends
End blast pipe（1）Between be provided with some sections of intermediate exhaust pipes（2）, in two tail end venting pipes（1）Between be additionally provided with least
One section pressurized exhaust gas pipe（3）, in the pressurized exhaust gas pipe（3）Wall on be provided with booster gas outlet, the pressurized exhaust gas
Pipe（3）It is arranged at the adjacent intermediate exhaust pipe of any two（2）Between, the tail end venting pipe（1）, intermediate exhaust pipe（2）, increase
Pressure tracheae（3）Between pass through metal bellows（4）It is attached.
2. multisection type exhaust pipe structure as claimed in claim 1, is characterized in that：The metal bellows and tail end venting pipe
（1）, intermediate exhaust pipe（2）, pressurized exhaust gas pipe（3）It is tightly connected using welding manner.
3. multisection type exhaust pipe structure as claimed in claim 1, is characterized in that：The tail end venting pipe（1）, intermediate exhaust pipe
（2）, pressurized exhaust gas pipe（3）Both ends be provided with the flange of an annular, the axial two ends Jun Ding of the metal bellows
It is pressed on the opposite face of two neighboring flange.
4. multisection type exhaust pipe structure as claimed in claim 1, is characterized in that：One is provided with the booster gas outlet
Adpting flange.
5. multisection type exhaust pipe structure as claimed in claim 1, is characterized in that：The tail end venting pipe（1）, intermediate exhaust pipe
（2）, pressurized exhaust gas pipe（3）On be provided with engaging lug for being fixedly connected with engine.
6. multisection type exhaust pipe structure as claimed in claim 1, is characterized in that：The metal bellows（4）It is made of copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611260651.XA CN106640314A (en) | 2016-12-30 | 2016-12-30 | Multi-segment type exhaust pipe structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611260651.XA CN106640314A (en) | 2016-12-30 | 2016-12-30 | Multi-segment type exhaust pipe structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106640314A true CN106640314A (en) | 2017-05-10 |
Family
ID=58837464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611260651.XA Pending CN106640314A (en) | 2016-12-30 | 2016-12-30 | Multi-segment type exhaust pipe structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106640314A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109281743A (en) * | 2018-11-01 | 2019-01-29 | 禹州市竹园机械制造有限公司 | A multi-section exhaust pipe structure |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1177905B (en) * | 1983-07-21 | 1987-08-26 | Witzenmann Metallschlauchfab | IMPROVEMENT IN THE EXHAUST MANIFOLD PIPES FOR MOTOR VEHICLE ENGINES |
| EP0356378B1 (en) * | 1988-08-17 | 1993-08-18 | GebràDer Sulzer Aktiengesellschaft | Exhaust gas manifold of a diesel engine with 9 or 18 cylinders |
| JPH09296725A (en) * | 1996-01-11 | 1997-11-18 | Hitachi Metals Ltd | Split exhaust manifold |
| EP1426557A1 (en) * | 2002-12-03 | 2004-06-09 | BorgWarner Inc. | Casing for turbo charger |
| DE102004027104A1 (en) * | 2004-06-03 | 2005-12-22 | Deutz Ag | Exhaust gas collection pipeline for multi-cylinder internal combustion engine, has screening device within compensator between exhaust gas pipelines, where device is designed as tube section which encompasses end sections of pipelines |
| DE102011106242A1 (en) * | 2011-06-27 | 2012-12-27 | Tenneco Gmbh | Modular manifold for motor vehicles |
| CN105545441A (en) * | 2016-01-27 | 2016-05-04 | 徐磊 | Exhaust manifold with compensation function |
| CN206376926U (en) * | 2016-12-30 | 2017-08-04 | 中国第一汽车股份有限公司 | Multisection type exhaust pipe structure |
-
2016
- 2016-12-30 CN CN201611260651.XA patent/CN106640314A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1177905B (en) * | 1983-07-21 | 1987-08-26 | Witzenmann Metallschlauchfab | IMPROVEMENT IN THE EXHAUST MANIFOLD PIPES FOR MOTOR VEHICLE ENGINES |
| EP0356378B1 (en) * | 1988-08-17 | 1993-08-18 | GebràDer Sulzer Aktiengesellschaft | Exhaust gas manifold of a diesel engine with 9 or 18 cylinders |
| JPH09296725A (en) * | 1996-01-11 | 1997-11-18 | Hitachi Metals Ltd | Split exhaust manifold |
| EP1426557A1 (en) * | 2002-12-03 | 2004-06-09 | BorgWarner Inc. | Casing for turbo charger |
| DE102004027104A1 (en) * | 2004-06-03 | 2005-12-22 | Deutz Ag | Exhaust gas collection pipeline for multi-cylinder internal combustion engine, has screening device within compensator between exhaust gas pipelines, where device is designed as tube section which encompasses end sections of pipelines |
| DE102011106242A1 (en) * | 2011-06-27 | 2012-12-27 | Tenneco Gmbh | Modular manifold for motor vehicles |
| CN105545441A (en) * | 2016-01-27 | 2016-05-04 | 徐磊 | Exhaust manifold with compensation function |
| CN206376926U (en) * | 2016-12-30 | 2017-08-04 | 中国第一汽车股份有限公司 | Multisection type exhaust pipe structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109281743A (en) * | 2018-11-01 | 2019-01-29 | 禹州市竹园机械制造有限公司 | A multi-section exhaust pipe structure |
| CN109281743B (en) * | 2018-11-01 | 2024-11-22 | 南京九维测控科技有限公司 | A multi-stage exhaust pipe structure |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170510 |