CN106150640A - A kind of high supercharging pressure level turbo-charged diesel variable cross-section exhaustor - Google Patents
A kind of high supercharging pressure level turbo-charged diesel variable cross-section exhaustor Download PDFInfo
- Publication number
- CN106150640A CN106150640A CN201610502333.3A CN201610502333A CN106150640A CN 106150640 A CN106150640 A CN 106150640A CN 201610502333 A CN201610502333 A CN 201610502333A CN 106150640 A CN106150640 A CN 106150640A
- Authority
- CN
- China
- Prior art keywords
- exhaust
- section
- exhaust main
- pressure level
- supercharging pressure
- 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
- 238000005259 measurement Methods 0.000 claims description 4
- 238000004364 calculation method Methods 0.000 abstract description 4
- 238000004088 simulation Methods 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000011144 upstream manufacturing Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 9
- 238000000605 extraction Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000001052 transient effect Effects 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002000 scavenging effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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
- 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
- F01N13/10—Other arrangements or adaptations of exhaust conduits of exhaust manifolds
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Supercharger (AREA)
Abstract
The invention provides a kind of high supercharging pressure level turbo-charged diesel variable cross-section exhaustor, including exhaust main and exhaust manifold, some one end of described exhaust manifold are connected with the side of exhaust main, described exhaust main is one section of increaser, and the cross-sectional area along air current flow direction exhaust main gradually expands.Relative to prior art, present invention have the advantage that the exhaust main of the present invention have employed the pattern of flaring, reduce the impact on upstream exhaust manifold air flow of the downstream exhaust gas manifold air flow, each cylinder aerofluxus interference can be effectively reduced, thus reduce each cylinder distribution non-evenness；Simulation calculation shows, uses the exhaust main of gradual-enlargement type can effectively reduce coefficient of residual gas in cylinder, improves charging efficiency.
Description
Technical field
The invention belongs to diesel engine exhaust system technical field, especially relate to a kind of high supercharging pressure level turbo-charged diesel
Use variable cross-section exhaustor.
Background technology
In order to realize high compact power set, high power density and miniaturization become the main development of military diesel machine
Direction, high pressure-charging technology is one of key technology of high power density diesel engine, mates suitable aerofluxus for highly supercharged diesel engine
Pipe can be effectively improved dynamic property and the economy of electromotor.
Air inlet system and exhaust system are the important component parts of electromotor, and design, matching result directly decide the performance of electromotor.
Pressure oscillation in the pattern of gas extraction system and structure parameters influence exhaustor and the transmission efficiency of exhaust energy, and then affect pump
The qigong, the swept volume of complete machine, the uniformity of each cylinder exhaust temperature and fuel consumption, so also determine the height work of complete machine
Condition performance and transient response etc..
According to architectural feature, the gas extraction system that presently, there are has five kinds of basic patterns: pressure fixing system, pulse system, pulse
Converting system, module type pulse converter system (MPC system) and MIXPC system.Pressure fixing system is owing to transient response difference is at car
Less with using on diesel engine.Pulse system and pulses switch system are not suitable for the diesel engine that supercharging pressure ratio is higher, and by cylinder
The restriction of number is bigger.MIXPC system is a kind of preferable gas extraction system of combination property, but structure is complicated, applies less.Exist at present
The more commonly used on highly supercharged diesel engine is MPC gas extraction system, but there is scavenging interference when using on some cylinder number electromotor.
Summary of the invention
In view of this, it is contemplated that propose a kind of high supercharging pressure level turbo-charged diesel variable cross-section exhaustor, to solve
The certainly aerofluxus interference of each cylinder of gas extraction system, thus reduce each cylinder distribution non-evenness.
For reaching above-mentioned purpose, the technical scheme is that and be achieved in that:
A kind of high supercharging pressure level turbo-charged diesel variable cross-section exhaustor, including exhaust main and exhaust manifold, some
One end of described exhaust manifold is connected with the side of exhaust main, and described exhaust main is one section of increaser, along air current flow
The cross-sectional area of direction exhaust main gradually expands.
Further, certain angle, described exhaust manifold it are provided with between exhaust end and the exhaust main of described exhaust manifold
The exhaust end of connection exhaust main has certain shrinkage factor, forms exhaust manifold reducing.
Further, the total measurement (volume) of described exhaust main is suitable with MPC exhaustor.
Further, the exhaust end of described exhaust main is provided with one section of uiform section straight length.
Relative to prior art, present invention have the advantage that
(1) exhaust main of the present invention have employed the pattern of flaring, reduces downstream exhaust gas manifold air flow to upstream exhaust
The impact of manifold air flow, can effectively reduce each cylinder aerofluxus interference, thus reduce each cylinder distribution non-evenness；
(2) simulation calculation shows, uses the exhaust main of gradual-enlargement type can effectively reduce coefficient of residual gas in cylinder, and raising is filled
Gas efficiency；
(3) gradually expand due to exhaust main sectional area, there is certain diffusion action, reduce the pressure arteries and veins before turbine
Dynamic, before making turbine, pressure oscillation reduces, and improves turbine efficiency, and exhaust main total measurement (volume) is less simultaneously, can effectively utilize aerofluxus
Energy, improves engine transient performance；
(4) for different cylinder number electromotors, there is well adapting to property.
Accompanying drawing explanation
The accompanying drawing of the part constituting the present invention is used for providing a further understanding of the present invention, and the present invention's is schematic real
Execute example and illustrate for explaining the present invention, being not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of the embodiment of the present invention one；
Fig. 2 is the structural representation of the embodiment of the present invention two.
Description of reference numerals:
1-exhaust main, 2-exhaust manifold, 3-exhaust manifold reducing, 4-turbocharger, 5-cylinder, 6-uiform section straight tube
Section.
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in the present invention and the feature in embodiment can phases
Combination mutually.
Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
Embodiment one, as it is shown in figure 1, high supercharging pressure level turbo-charged diesel variable cross-section exhaustor, including exhaust main 1
With exhaust manifold 2, some one end of described exhaust manifold 2 are connected with the side of exhaust main 1, and described exhaust main 1 is one
Section increaser, the cross-sectional area along air current flow direction exhaust main 1 gradually expands.
Certain angle, described exhaust manifold 2 connection row it is provided with between exhaust end and the exhaust main 1 of described exhaust manifold 2
The exhaust end of gas house steward 1 has certain shrinkage factor, forms exhaust manifold reducing 3.
The total measurement (volume) of described exhaust main 1 is less, suitable with MPC exhaustor.
The average diameter of described exhaust main 1 can just elect 0.5 times of cylinder bore as, and final diameter need to be by one-dimensional emulation
Calculating determines, different purposes electromotors are different.
Electing 0.65 as at the beginning of the shrinkage ratio of described exhaust manifold reducing 3, end value need to be determined by one-dimensional simulation calculation, different
Purposes electromotor is different.
Angle between exhaust end and the exhaust main 1 of described exhaust manifold 2 is the smaller the better, it is contemplated that manufacturability, this reality
Executing example selected angle is 30 degree.
Embodiment two, as in figure 2 it is shown, its structure is essentially identical with the structure of embodiment one, the most described exhaust main 1
Exhaust end is provided with one section of uiform section straight length 6, can play pressure stabilization function.
The average diameter of the exhaust main 1 of embodiment two can just elect 0.5 times of cylinder bore as, and final diameter need to be by one
Dimension simulation calculation determines.The length of described uiform section straight length 6 is preferably 150mm.
In work process:
Waste gas in cylinder 5 enters exhaust manifold 2 and enters exhaust main 1 after exhaust manifold reducing 3 is accelerated, then through aerofluxus
Turbocharger 4 is entered after house steward 1 voltage stabilizing.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (8)
1. a high supercharging pressure level turbo-charged diesel variable cross-section exhaustor, including exhaust main (1) and exhaust manifold (2),
It is characterized in that: one end of some described exhaust manifolds (2) is connected with the side of exhaust main (1), described exhaust main (1)
Being one section of increaser, the cross-sectional area along air current flow direction exhaust main (1) gradually expands.
High supercharging pressure level turbo-charged diesel variable cross-section exhaustor the most according to claim 1, it is characterised in that: described
Certain angle, described exhaust manifold (2) connection exhaust main it is provided with between exhaust end and the exhaust main (1) of exhaust manifold (2)
(1) exhaust end has certain shrinkage factor, forms exhaust manifold reducing (3).
High supercharging pressure level turbo-charged diesel variable cross-section exhaustor the most according to claim 1, it is characterised in that: described
The total measurement (volume) of exhaust main (1) is suitable with MPC exhaustor.
High supercharging pressure level turbo-charged diesel variable cross-section exhaustor the most according to claim 1, it is characterised in that: described
Average diameter is cylinder bore 0.5 times of exhaust main (1).
High supercharging pressure level turbo-charged diesel variable cross-section exhaustor the most according to claim 1 and 2, it is characterised in that:
The exhaust end of described exhaust main (1) is provided with one section of uiform section straight length (6).
High supercharging pressure level turbo-charged diesel variable cross-section exhaustor the most according to claim 5, it is characterised in that: described
The a length of 150mm of uiform section straight length (6).
High supercharging pressure level turbo-charged diesel variable cross-section exhaustor the most according to claim 2, it is characterised in that: described
The shrinkage ratio of exhaust manifold reducing (3) is 0.65.
High supercharging pressure level turbo-charged diesel variable cross-section exhaustor the most according to claim 2, it is characterised in that: described
The angle of the angle between exhaust manifold (2) and exhaust main (1) is 30 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610502333.3A CN106150640A (en) | 2016-06-29 | 2016-06-29 | A kind of high supercharging pressure level turbo-charged diesel variable cross-section exhaustor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610502333.3A CN106150640A (en) | 2016-06-29 | 2016-06-29 | A kind of high supercharging pressure level turbo-charged diesel variable cross-section exhaustor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106150640A true CN106150640A (en) | 2016-11-23 |
Family
ID=57350513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610502333.3A Pending CN106150640A (en) | 2016-06-29 | 2016-06-29 | A kind of high supercharging pressure level turbo-charged diesel variable cross-section exhaustor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106150640A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019267A (en) * | 2017-11-17 | 2018-05-11 | 无锡开普动力有限公司 | Large bore engine modular exhaust gas manifold structure |
| CN110374731A (en) * | 2019-06-24 | 2019-10-25 | 上海交通大学 | Inclination penetration type two stroke diesel engine pipe fitting suitable for ship |
| CN112459887A (en) * | 2020-12-02 | 2021-03-09 | 江苏普瑞亚动力科技有限公司 | Exhaust system of high steady voltage nature |
| US10954884B2 (en) | 2018-03-06 | 2021-03-23 | Ford Global Technologies, Llc | Internal combustion engine with cylinder head, and method for producing a cylinder head of an internal combustion engine of said type |
| CN116146321A (en) * | 2022-12-30 | 2023-05-23 | 东风商用车有限公司 | Exhaust manifold for engine, engine and vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2685582Y (en) * | 2004-01-15 | 2005-03-16 | 常州市立新增压器有限公司 | Booster diesel oil engine contraction and enlargement exhaust manifold |
| CN200961504Y (en) * | 2005-11-24 | 2007-10-17 | 舟山市海峡汽车轮渡有限责任公司 | Gas Injection Turbocharging System for MAN B&W9L Marine Diesel Engine |
| CN200999646Y (en) * | 2007-01-09 | 2008-01-02 | 哈尔滨东安汽车动力股份有限公司 | engine exhaust manifold |
| CN101149016A (en) * | 2007-11-01 | 2008-03-26 | 上海交通大学 | Gas diversion compound pulse conversion turbocharging system |
| CN101413433A (en) * | 2008-11-20 | 2009-04-22 | 上海交通大学 | Guide blade type module type pulse conversion turbocharging system |
-
2016
- 2016-06-29 CN CN201610502333.3A patent/CN106150640A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2685582Y (en) * | 2004-01-15 | 2005-03-16 | 常州市立新增压器有限公司 | Booster diesel oil engine contraction and enlargement exhaust manifold |
| CN200961504Y (en) * | 2005-11-24 | 2007-10-17 | 舟山市海峡汽车轮渡有限责任公司 | Gas Injection Turbocharging System for MAN B&W9L Marine Diesel Engine |
| CN200999646Y (en) * | 2007-01-09 | 2008-01-02 | 哈尔滨东安汽车动力股份有限公司 | engine exhaust manifold |
| CN101149016A (en) * | 2007-11-01 | 2008-03-26 | 上海交通大学 | Gas diversion compound pulse conversion turbocharging system |
| CN101413433A (en) * | 2008-11-20 | 2009-04-22 | 上海交通大学 | Guide blade type module type pulse conversion turbocharging system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019267A (en) * | 2017-11-17 | 2018-05-11 | 无锡开普动力有限公司 | Large bore engine modular exhaust gas manifold structure |
| US10954884B2 (en) | 2018-03-06 | 2021-03-23 | Ford Global Technologies, Llc | Internal combustion engine with cylinder head, and method for producing a cylinder head of an internal combustion engine of said type |
| CN110374731A (en) * | 2019-06-24 | 2019-10-25 | 上海交通大学 | Inclination penetration type two stroke diesel engine pipe fitting suitable for ship |
| CN112459887A (en) * | 2020-12-02 | 2021-03-09 | 江苏普瑞亚动力科技有限公司 | Exhaust system of high steady voltage nature |
| CN116146321A (en) * | 2022-12-30 | 2023-05-23 | 东风商用车有限公司 | Exhaust manifold for engine, engine and vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106150640A (en) | A kind of high supercharging pressure level turbo-charged diesel variable cross-section exhaustor | |
| CN101413429A (en) | Turbocharging system for adjusting exhausting pipe volume by rotating baffle | |
| CN203499859U (en) | Supercharged diesel engine Venturi tube exhaust gas recirculation apparatus | |
| DE112011103823T5 (en) | Fluid handling system with a dedicated EGR turbo generator | |
| CN100510343C (en) | Gas flow guiding composite pulse conversion turbo supercharging system | |
| CN101413430B (en) | Supercharging mode-adjustable turbocharging system | |
| CN102400757B (en) | Anti-interference modular quasi-pulse turbocharging system | |
| CN102767418B (en) | Synchronous double-moving-body moving device | |
| Liu et al. | Numerical analysis of flow interaction of turbine system in two-stage turbocharger of internal combustion engine | |
| CN208900243U (en) | An engine and its intake and exhaust system | |
| CN202718750U (en) | Volume changing device in telescopic pipe | |
| CN102444468B (en) | Turbocharging system with moving plate in front of turbine inlet | |
| CN101672215A (en) | Turbine pressurization system with changeable exhausting circulation path | |
| CN102720581A (en) | Mechanically telescopic device with three connection pipes | |
| CN102418587A (en) | Variable geometry exhaust pipe turbocharging system | |
| CN104879209A (en) | Fixed-pressure exhaust/pulse exhaust switching device of engine | |
| CN205744084U (en) | The horizontally-opposed piston of two-stroke, the gas exhaust piping of opposed-cylinder engine | |
| CN101979851A (en) | A turbocharger system that uses a movable partition to adjust the necking ratio of the exhaust manifold | |
| CN101387220B (en) | Self-adapting pulse turbocharging system | |
| CN117252041B (en) | Optimal selection method of cylinder diameter size of ultra-high-strength power generation diesel engine | |
| CN103291448B (en) | The gas port Parameters design of free-piston internal combustion engine generator loop scavenging system | |
| CN216306062U (en) | Assembled silencer with DCCO system interface | |
| CN202417673U (en) | Intermediate exhaust pipe for gas collection for EGR (exhaust gas recirculation) | |
| CN105840293A (en) | Squish-flow combustion system for opposed piston engine | |
| CN207813719U (en) | A kind of pulse exhaust manifold for engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161123 |
|
| RJ01 | Rejection of invention patent application after publication |