CN108730023A - A kind of method and apparatus of control engine exhaust air-flow - Google Patents
A kind of method and apparatus of control engine exhaust air-flow Download PDFInfo
- Publication number
- CN108730023A CN108730023A CN201810353337.9A CN201810353337A CN108730023A CN 108730023 A CN108730023 A CN 108730023A CN 201810353337 A CN201810353337 A CN 201810353337A CN 108730023 A CN108730023 A CN 108730023A
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- fluid
- exhaust
- flow
- flow channel
- engine
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
-
- 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
- Y02T10/12—Improving ICE efficiencies
Abstract
A method of control engine exhaust air-flow, using fluid ejection mechanisms fluid is sprayed into the grate flow channel in enmgine exhaust downstream, sprayed fluid is utilized to form barrier in grate flow channel, exhaust airstream in grate flow channel is hindered using barrier or slows down exhaust airstream speed in grate flow channel, to improve the engine back pressure of barrier upstream.A kind of device for realizing this method, including fluid ejection mechanisms, fluid ejection mechanisms include nozzle.Any metal valve body or entity obstacle need not be arranged in the present invention in the grate flow channel of engine, but the fluid sprayed by fluid ejection mechanisms, fluid barriers are formed in grate flow channel, hinder or slow down the exhaust airstream in the grate flow channel, improve the engine back pressure of barrier upstream, the exhaust gas recycling for improving engine, reduces the discharge of engine, increases the braking power of engine.
Description
Technical field
The present invention relates to machinery field more particularly to engine art, especially a kind of control engine exhaust air-flow
Method and apparatus.
Background technology
In prior art, the application of vehicle motor has long history, and the control of the exhaust airstream of engine is widely
People knows.For example, the turbocharger generally used in diesel engine, including variable geometry turbocharger, using starting
The turbine of the gas-driven turbine booster of machine discharge, turbine drive co-axial connected compressor, air are pressed into air inlet
Manifold and cylinder.Turbocharger can control exhaust airstream and pressure by waste gate or variable votex sheet.Also exhaust back pressure
Device is such as vented butterfly valve, can be by entire grate flow channel（Exhaust pipe）Part is closed or is fully sealed, and exhaust gas is reduced or block
Stream, improves the pressure at expulsion of engine.
The control of engine exhaust air-flow or air pressure has a wide range of applications.When engine ignition operates, in order to reduce
Discharge, needs exhaust gas to recycle（EGR）, that is, by a part for the exhaust gas of engine combustion emissions return to engine vapour
In cylinder.The realization of exhaust gas recycling requires pressure at expulsion to be higher than intake pressure or cylinder pressure, needs to engine exhaust air-flow or gas
The control of pressure.When engine braking operates, improves pressure at expulsion and will be helpful to increase braking power, reduce brake load.
Existing engine exhaust air-flow or Pressure Control Technology have its disadvantage or limitation.Such as turbocharger
Waste gate is general only to work in the high rotating speed of engine.Variable geometry turbocharger is expensive, poor reliability.It is other controllable
Exhaust back pressure device, such as the back pressure regulator of Volvo（EPR）, mechanism is complicated, and of high cost, volume is big.General general exhaust
Butterfly valve can be only installed at the downstream of turbocharger, and butterfly valve has fully phased out the function of turbocharger when closing, engine loses
Plenum has been gone, excessive discharge temperature is caused.
Invention content
The purpose of the present invention is to provide a kind of methods of control engine exhaust air-flow, and the method will solve existing
The mechanism of engine back pressure control device is complicated in technology, of high cost, volume is big, control is difficult, engine is vented in high rotating speed
The technical issues of temperature is too high, fuel nozzle sharp-tongued overheat.
The method of this control engine exhaust air-flow of the present invention, including：Using a fluid ejection mechanisms, to starting
Fluid is sprayed in the grate flow channel in machine exhaust manifold downstream, sprayed fluid is utilized to form barrier in grate flow channel, is utilized
The barrier hinders exhaust airstream in grate flow channel or slows down the exhaust airstream speed in grate flow channel, to improve
The engine back pressure of barrier upstream, the fluid ejection mechanisms include nozzle, and the fluid passes through the nozzle
Injection.
Further, the flow direction of the exhaust airstream in the flow direction and grate flow channel of the sprayed fluid of nozzle is hung down
It is straight or close vertically or at obtuse angle.
Further, fluid is sprayed with a flat shape using nozzle, the fluid in plane forms a fluid gate
Curtain covers some or all of cross section of grate flow channel using the fluid door curtain.
Alternatively, fluid is sprayed with a conical surface shape using nozzle, grain direction and exhaust stream of the fluid on the conical surface
The angle of the flow direction of exhaust airstream in road is in obtuse angle.
Further, the nozzle is arranged on the Partial Perimeter area of grate flow channel or entire periphery.
Further, the fluid sprayed includes liquids and gases, and the liquid includes water, and the gas includes sky
Gas.
Further, the engine includes turbocharger and exhaust manifold, and the turbocharger includes two
A exhaust gas intake port, the exhaust manifold include two outlets, the exhaust gas intake port of turbocharger respectively with an exhaust manifold
Outlet communicate, two independent grate flow channels are formed, using the nozzle of fluid ejection mechanisms thereto in a grate flow channel
Injection fluid simultaneously forms barrier, changes the flow or speed of the exhaust airstream in the grate flow channel using the barrier.
The present invention also provides a kind of device of method that realizing above-mentioned control engine exhaust air-flow, the device packets
Include a fluid ejection mechanisms, wherein the fluid ejection mechanisms include nozzle.
Further, the nozzle includes the nozzle for having flat pattern, the nozzle packet with flat pattern
The circular hole of more than one number or flat slot are included, the circular hole or flat slot are arranged in single or more than two levels.
Further, the quantity and size of the circular hole or flat slot are by the flow of injection fluid, speed and apart from determining.
Further, the engine includes turbocharger, the exhaust gas intake port of the turbocharger with start
The outlet of machine exhaust manifold communicates, and the grate flow channel is between turbocharger and enmgine exhaust.
Further, the engine includes turbocharger and exhaust manifold, and the turbocharger includes two
A exhaust gas intake port, the exhaust manifold include two outlets, the exhaust gas intake port of turbocharger respectively with an exhaust manifold
Outlet communicate, form two independent grate flow channels, the nozzle only sprays fluid in grate flow channel thereto.
Further, the fluid ejection mechanisms also packet power source and control valve, the power source include pump or pressure
Contracting machine, the pump or compressor generate fluid with predetermined pressure, for injection, and the control valve controls injection stream
The time of body and flow.
The present invention is compared with prior art, and effect is positive and apparent.The present invention need not be in the exhaust of engine
Any metal valve body of setting or entity obstacle in runner, but the fluid sprayed by fluid ejection mechanisms, in grate flow channel
Fluid barriers are formed, hinders or slows down the exhaust airstream in the grate flow channel, improve the engine exhaust pressure of barrier upstream
Power improves the exhaust gas recycling of engine, reduces the discharge of engine, increase the braking power of engine.
Description of the drawings
Fig. 1 is the conventional four-stroke engine that can apply the band exhaust butterfly valve system of the present invention（Single cylinder）Schematic diagram.
Fig. 2 is a general illustration of the method for the control engine exhaust air-flow of the present invention.
Fig. 3 is the schematic diagram of one embodiment of the method for the control engine exhaust air-flow of the present invention.
Fig. 4 is the schematic diagram of second embodiment of the method for the control engine exhaust air-flow of the present invention.
Fig. 5 is the schematic diagram of the third embodiment of the method for the control engine exhaust air-flow of the present invention.
Fig. 6 is the schematic diagram of the 4th embodiment of the method for the control engine exhaust air-flow of the present invention.
Specific implementation mode
Fig. 1 is a kind of schematic diagram of the four-stroke engine 100 of conventional band exhaust butterfly valve system 128.It is general to start
Machine has multiple cylinders, such as the diesel engine that the engine in commercial car is six-in-line.But for brevity, Fig. 1
Illustrate only a cylinder 35 of engine 100.The piston 33 of engine 100 does the fortune of period up and down reciprocatingly in cylinder 35
It is dynamic.Each period of motion of four-stroke engine 100 includes induction stroke, compression stroke, expansion（Or workmanship）Stroke and row
Gas stroke.In the intake stroke, the engine piston 33 in Fig. 1 moves in cylinder 35 from top dead centre toward air inlet lower dead center, hair
The inlet valve 200 of motivation is opened, and the cylinder 35 of engine is introduced air into.Followed by compression stroke, piston 33 is under air inlet
Stop is moved toward compression top center, and the inlet valve 200 and exhaust valve 300 of engine are all in closed state, the sky in cylinder 35
Gas is compressed, when piston 33 arrives near, fuel oil（Such as diesel oil）Mixed with compressed air in penetrating cylinder,
Compression ignition and in next expansion（Or workmanship）It burns away in stroke, generates gas expansion, by piston 33 from compression top center
Toward expansion bottom dead center driving workmanship.It is finally the exhaust stroke of engine, piston 33 is transported from expansion bottom dead center toward exhaust top dead center
Dynamic, the exhaust valve 300 of engine is opened, and the gas after burning is discharged to exhaust manifold 22 out of cylinder 35.Exhaust stroke is complete
Induction stroke is returned to after, starts a new period, so on circulate.Certainly, in addition to conventional inlet and outlet campaign it
Outside, there can also be auxiliary valve motion, for example, interior exhaust gas recycles（iEGR）It needs to be again turned on exhaust during induction stroke
Door.
Existing engine is equipped with greatly turbocharger 20 shown in FIG. 1, to improve the power and efficiency of engine.
The exhaust gas being discharged in from engine cylinder 35 enters grate flow channel from exhaust manifold 22（Exhaust pipe）24, turbine 26 is driven, is driven
Co-axial 27 compressor 28 rotates together, improves the admission pressure in air inlet pipe 12.Due to the temperature of compressed air
Increase, reduces the efficiency of engine, so compressed air enters before the cylinder 35 of engine, it is cold by charge air cooler 14
But, cylinder 35 is then entered by inlet manifold 18 and inlet valve 200.In addition, the generally each cylinder of existing engine is equipped with four
A valve, two inlet valves, two exhaust valves, the single inlet valve 200 and single exhaust valve 300 shown in Fig. 1 are only illustrated
Effect.
It is that not oil spout is not also burnt when braking that engine braking, which is operated with the main distinction of igniting running, will generate power
Engine is temporarily converted to the air compressor machine for absorbing energy.Simplest engine braking is braked outside cylinder, is exactly to use engine
Row pressure control mechanism close the exhaust pipe of engine such as butterfly valve system 128, exhaust airstream blocked so that exhaust back pressure increase
Height, the engine resistance that piston 33 moves upwards during exhaust stroke increase, and generate engine braking.The closing of butterfly valve is by pressing
Contracting air generates.Air 140 by gas-guide tube 143 and 147 and control valve 145 after the compression boosting of air compressor machine 141 by giving driving
The cylinder 148 of butterfly valve supplies.It is braked outside cylinder（As butterfly valve is braked）The advantages of be simple and practicable, but the disadvantage is that braking ability is poor,
Delivery temperature is higher.
More complicated and more effectively a kind of engine braking is cylinder inside brake.In addition to conventional inlet and outlet door during braking
During inlet and outlet stroke open except, engine piston compresses stroke close at the end of exhaust valve be again turned on, permission quilt
Compressed gas（It is air when braking）Be released, the energy that engine compressed gas in compression stroke is absorbed, cannot with
Expansion stroke afterwards returns to the piston of engine, but is discharged by the exhaust and cooling system of engine.Final knot
Fruit is effective engine braking, slows down the speed of vehicle.Cylinder inside brake（As compression-release is braked）The advantages of be braking
Can preferably, but its structure and implementation are more complicated, and brake load is higher, and noise is very big.
Braking ability（Especially in middle and slow speed of revolution）Best engine braking is so-called Associated brake, that is, is made simultaneously
It is braked with outside cylinder inside brake and cylinder.The braking of Associated brake improves, and brake load reduces, without noise.But delivery temperature
It further increases, leads to certain components of engine, as atomizer overheats.The effective ways for solving above-mentioned problems of excessive heat are to use
Variable exhaust back pressure control device, but the accessory problem thus brought is that cost increases, space increases and the control etc. of complexity.
Fig. 2 is a general illustration of the method for the control engine exhaust air-flow of the present invention.It is shown in figure straight
The engine 100 of six cylinder of row does not need the exhaust butterfly valve system in Fig. 1, increases fluid ejection mechanisms 40, including nozzle 48.
Grate flow channel of the nozzle 48 to 22 downstream of enmgine exhaust（Exhaust pipe）Fluid is sprayed in 24, the fluid sprayed is being vented
A kind of barrier is formed in runner 24, hinders or slow down engine exhaust air-flow 240, improves barrier upstream（Including exhaust manifold 22
It is interior）Engine back pressure.Injection fluid is generated by power source 41, according to the difference of fluid 400（Can be liquid or gas
Body）, power source 41 can be pump or compressor, for generating fluid with predetermined pressure, for injection.With pre- level pressure
The fluid of power guides nozzle 48 by diversion pipe 43 and 47, and controls injecting time and flow by control valve 45.It sprays in fluid
Liquid include water, spray fluid in gas include air.
Embodiment 1:
One embodiment of the method and apparatus of the control engine exhaust air-flow of the present invention can be by Fig. 3 come furtherly
It is bright.There are one flat nozzles 49 for the nozzle 48 for the fluid ejection mechanisms 40 anticipated shown in Fig. 3 of the present embodiment, are located at exhaust
The side on 24 periphery of runner（Right side in Fig. 3）.Flat nozzle 49 contains single or multiple circular holes or flat slot, circular hole or flat
By the flow of injection fluid, speed and apart from determining, the arrangement of circular hole or flat slot on nozzle can be the quantity and size of slot
It is single（Layer）Or it is multiple rows of（Layer）.The flow profile of injection is plane 410 or 420, forms fluid door curtain, covers entire grate flow channel
24 cross section（A part for the cross section of grate flow channel 24 can also be covered）, hinder or slow down engine exhaust air-flow 240.
One such embodiment is the flow direction of the flow direction 410 and the exhaust airstream in grate flow channel 24 of spraying fluid
240 is substantially vertical（It crosses）；Another embodiment is the flow direction 420 for spraying fluid and the exhaust gas in grate flow channel 24
The angle of the flow direction 240 of stream is obtuse angle（Countercurrently）.
Embodiment 2:
Second embodiment of the method and apparatus of the control engine exhaust air-flow of the present invention can be by Fig. 4 come furtherly
It is bright.There are one round table-like nozzles 49 for the nozzle 48 for the fluid ejection mechanisms 40 anticipated shown in Fig. 4 of the present embodiment, are located at exhaust
The side on 24 periphery of runner（Right side in Fig. 4）.Columned nozzle 49 contains single or multiple circular holes, the quantity of circular hole and big
It is small by the flow of injection fluid, speed and apart from determining.The flow profile of injection is the conical surface 430, covers entire grate flow channel 24
Cross section（A part for the cross section of grate flow channel 24 can also be covered）, hinder or slow down engine exhaust air-flow 240.Spray
The flow direction 430 of jet body and the angle of the flow direction 240 of the exhaust airstream in grate flow channel 24 are obtuse angle（Countercurrently）.
Embodiment 3:
The third embodiment of the method and apparatus of the control engine exhaust air-flow of the present invention can be by Fig. 5 come furtherly
It is bright.There are one cricoid nozzles 49 for the nozzle 48 for the fluid ejection mechanisms 40 anticipated shown in Fig. 5 of the present embodiment, are located at exhaust stream
Road 24 it is entire（3600）Periphery.Cricoid nozzle 49 contains single or multiple circular holes or flat slot, the quantity of circular hole or flat slot and
For size by the flow of injection fluid, speed and apart from determining, circular hole or flat slot can be single, single layers in the arrangement of spray heads
Or multilayer.The flow profile of injection is the conical surface 440, hinders or slow down engine exhaust air-flow 240.Spray the flow direction of fluid
440 and the angle of flow direction 240 of the exhaust airstream in grate flow channel 24 are obtuse angle（Countercurrently）.
Embodiment 4:
4th embodiment of the method and apparatus of the control engine exhaust air-flow of the present invention can be by Fig. 6 come furtherly
It is bright.The nozzle 49 of the nozzle 48 for the fluid ejection mechanisms 40 anticipated shown in Fig. 6 of the present embodiment is located at the row of turbocharger 20
The side of gas import 241（Right side in Fig. 6）.Here turbocharger 20 and is started there are two exhaust gas intake port 241 and 242
Two outlets of machine exhaust manifold communicate, and form two sseparated grate flow channels.The nozzle 48 of fluid ejection mechanisms 40 is to two
Fluid 400 is sprayed in a grate flow channel in separated grate flow channel and is formed a kind of barrier 450, hinder or is slowed down into institute
The exhaust airstream of the single grate flow channel stated and the turbocharger exhaust import 241 communicated therewith
Above description contains many specific embodiments, this should not be construed so as to limit the scope of the present, but makees
To represent some specific illustrations of the present invention, many other differentiation are likely to therefrom generate.For example, control hair here
The method and apparatus of motivation exhaust airstream can be used for different engines, including overhead cam engine and pushrod engine；
It can be used for single air valve engine, the multivalve engine of more than two valves can also be used for；It can be used for the hair of two strokes
Motivation can be used for four-stroke engine.
In addition, the fluid that is sprayed of fluid ejection mechanisms of the present invention can be different substance, in addition to water and air it
Outside, urea, nitrogen, argon gas etc. be can also be.Mode, time and the flow of injection can be adjusted.
In addition, composition, shape, installation and the regulation and control of fluid ejection mechanisms etc. here can be different.The shape of nozzle
Other than flat, round table-like and ring-type, other shapes can also be taken.
In addition, the cross section of grate flow channel here in addition to rectangular, round, can also be other shapes.
In addition, the injection direction of fluid is other than vertical and obtuse angle, can also be acute angle.
Therefore, the scope of the present invention should not be determined by above-mentioned specific illustration, but be determined by claim.
Claims (13)
1. a kind of method of control engine exhaust air-flow, it is characterised in that：Using a fluid ejection mechanisms, arranged to engine
Fluid is sprayed in the grate flow channel in gas manifold downstream, sprayed fluid is utilized to form barrier in grate flow channel, using described
Barrier hinder exhaust airstream in grate flow channel or slow down exhaust airstream speed in grate flow channel, to improve barrier
The engine back pressure of upstream, the fluid ejection mechanisms include nozzle, and the fluid is sprayed by the nozzle
It penetrates.
2. the method for control engine exhaust air-flow as described in claim 1, it is characterised in that：The stream of the sprayed fluid of nozzle
Dynamic direction is vertical with the flow direction of the exhaust airstream in grate flow channel or close vertical or at obtuse angle.
3. the method for control engine exhaust air-flow as described in claim 1, it is characterised in that：Using nozzle by fluid with one
A flat shape is sprayed, and the fluid in plane forms a fluid door curtain, and the fluid door curtain is utilized to cover grate flow channel
Some or all of cross section.
4. the method for control engine exhaust air-flow as described in claim 1, it is characterised in that：Using nozzle by fluid with one
A conical surface shape injection, the angle of the flow direction of exhaust airstream of the fluid in the grain direction and grate flow channel on the conical surface are in
Obtuse angle.
5. the method for control engine exhaust air-flow as described in claim 1, it is characterised in that：The nozzle setting is being arranged
On the Partial Perimeter area or entire periphery of flow channel.
6. the method for control engine exhaust air-flow as described in claim 1, it is characterised in that：The fluid sprayed includes liquid
Body and gas, the liquid include water, and the gas includes air.
7. the method for control engine exhaust air-flow as described in claim 1, it is characterised in that：The engine includes whirlpool
Booster and exhaust manifold are taken turns, the turbocharger includes two exhaust gas intake ports, and the exhaust manifold goes out including two
Mouthful, the exhaust gas intake port of turbocharger is respectively communicated with the outlet of an exhaust manifold, forms two independent grate flow channels, profit
With injection fluid in the nozzles of fluid ejection mechanisms thereto a grate flow channel and barrier is formed, the barrier is utilized to change
The flow or speed of exhaust airstream in the grate flow channel.
8. a kind of device of method that realizing control engine exhaust air-flow described in claim 1, including a fluid injection
Mechanism, it is characterised in that：The fluid ejection mechanisms include nozzle.
9. the device of control engine exhaust air-flow as claimed in claim 8, it is characterised in that：The nozzle includes having
The nozzle of flat pattern, the nozzle with flat pattern include the circular hole of more than one number or flat slot, the circle
Hole or flat slot are arranged in single or more than two levels.
10. the device of control engine exhaust air-flow as claimed in claim 8, it is characterised in that：The circular hole or flat slot
Quantity and size by the flow of injection fluid, speed and apart from determining.
11. the device of control engine exhaust air-flow as claimed in claim 8, it is characterised in that：The engine includes
Turbocharger, the exhaust gas intake port of the turbocharger are communicated with the outlet of enmgine exhaust, the exhaust stream
Road is between turbocharger and enmgine exhaust.
12. the device of control engine exhaust air-flow as claimed in claim 8, it is characterised in that：The engine includes
Turbocharger and exhaust manifold, the turbocharger include two exhaust gas intake ports, and the exhaust manifold includes two
Outlet, the exhaust gas intake port of turbocharger are respectively communicated with the outlet of an exhaust manifold, form two independent grate flow channels,
The nozzle only sprays fluid in grate flow channel thereto.
13. the device of control engine exhaust air-flow as claimed in claim 8, it is characterised in that：The fluid injection machine
Structure also packet power source and control valve, the power source include pump or compressor, and the pump or compressor are generated with predetermined
Pressure, fluid for injection, the time of control valve control injection fluid and flow.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810353337.9A CN108730023B (en) | 2018-04-19 | 2018-04-19 | Method and device for controlling exhaust gas flow of engine |
| PCT/CN2019/082397 WO2019201162A1 (en) | 2018-04-19 | 2019-04-12 | Compound engine braking method and turbocharging control apparatus |
| EP19788124.6A EP3783207A4 (en) | 2018-04-19 | 2019-04-12 | Compound engine braking method and turbocharging control apparatus |
| US17/046,802 US20210180527A1 (en) | 2018-04-19 | 2019-04-12 | Combined Engine Braking Method and Turbocharging Control Device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810353337.9A CN108730023B (en) | 2018-04-19 | 2018-04-19 | Method and device for controlling exhaust gas flow of engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108730023A true CN108730023A (en) | 2018-11-02 |
| CN108730023B CN108730023B (en) | 2023-02-21 |
Family
ID=63939709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810353337.9A Active CN108730023B (en) | 2018-04-19 | 2018-04-19 | Method and device for controlling exhaust gas flow of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108730023B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019201162A1 (en) * | 2018-04-19 | 2019-10-24 | 上海尤顺汽车部件有限公司 | Compound engine braking method and turbocharging control apparatus |
| CN113969843A (en) * | 2021-09-30 | 2022-01-25 | 东风商用车有限公司 | Exhaust brake system |
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| KR970044736A (en) * | 1995-12-27 | 1997-07-26 | 정몽원 | Vehicle exhaust brake system |
| US5839281A (en) * | 1995-10-27 | 1998-11-24 | Mercedes-Benz Ag | Motor braking arrangement |
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| US20110083646A1 (en) * | 2009-10-09 | 2011-04-14 | International Engine Intellectual Property Company Llc | Compressed Air Intake Engine Inlet Booster |
| KR20130040325A (en) * | 2011-10-14 | 2013-04-24 | 현대자동차주식회사 | Auxiliary brake apparatus and control method thereof |
| CN104564367A (en) * | 2013-10-11 | 2015-04-29 | 现代自动车株式会社 | Exhaust break for high torque vehicle and control method thereof |
| CN106285966A (en) * | 2015-05-12 | 2017-01-04 | 上海尤顺汽车部件有限公司 | For the engine braking methods that vehicle is slow |
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| US5839281A (en) * | 1995-10-27 | 1998-11-24 | Mercedes-Benz Ag | Motor braking arrangement |
| KR970044736A (en) * | 1995-12-27 | 1997-07-26 | 정몽원 | Vehicle exhaust brake system |
| CN1235579A (en) * | 1996-10-07 | 1999-11-17 | 居伊·内格尔 | Method and device for re-accelerating vehicle equipped with high-pressure compressor |
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| CN101680374A (en) * | 2007-06-19 | 2010-03-24 | 克诺尔商用车制动系统有限公司 | Be used to improve the method and apparatus of the engine brake power of the stroke piston combustion engine of vehicle, particularly diesel engine |
| US20110083646A1 (en) * | 2009-10-09 | 2011-04-14 | International Engine Intellectual Property Company Llc | Compressed Air Intake Engine Inlet Booster |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019201162A1 (en) * | 2018-04-19 | 2019-10-24 | 上海尤顺汽车部件有限公司 | Compound engine braking method and turbocharging control apparatus |
| CN113969843A (en) * | 2021-09-30 | 2022-01-25 | 东风商用车有限公司 | Exhaust brake system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108730023B (en) | 2023-02-21 |
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