CN109973207A - A kind of internal-combustion engine system - Google Patents
A kind of internal-combustion engine system Download PDFInfo
- Publication number
- CN109973207A CN109973207A CN201711455872.7A CN201711455872A CN109973207A CN 109973207 A CN109973207 A CN 109973207A CN 201711455872 A CN201711455872 A CN 201711455872A CN 109973207 A CN109973207 A CN 109973207A
- Authority
- CN
- China
- Prior art keywords
- combustion engine
- internal
- internal combustion
- turbine
- compressing device
- 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
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 56
- 230000001052 transient effect Effects 0.000 abstract description 7
- 239000000446 fuel Substances 0.000 description 3
- 239000004071 soot Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
Classifications
-
- 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
- F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
- F02B39/02—Drives of pumps; Varying pump drive gear ratio
- F02B39/08—Non-mechanical drives, e.g. fluid drives having variable gear ratio
- F02B39/10—Non-mechanical drives, e.g. fluid drives having variable gear ratio electric
-
- 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
- F02B41/00—Engines characterised by special means for improving conversion of heat or pressure energy into mechanical power
- F02B41/02—Engines with prolonged expansion
- F02B41/10—Engines with prolonged expansion in exhaust turbines
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Supercharger (AREA)
Abstract
The application provides a kind of internal-combustion engine system, comprising: internal combustion engine；Turbine is connected to the exhaust port of the internal combustion engine and receives the gas of the internal combustion engine discharge；Compressing device is connected to the air inlet port of the internal combustion engine and supplies the gas through being pressurized to the internal combustion engine；Wherein, the turbine is connect with a power generator, and the power generator can be driven to produce electricl energy, and the electric energy is supplied to the compressing device.Have the characteristics that transient response is good, overall performance and emission level are excellent, exhaust energy utilization rate is high, space layout is convenient according to the internal-combustion engine system of the application.
Description
Technical field
This application involves internal-combustion engine systems, and are specifically related to marine internal combustion engine system.
Background technique
The maximum power that internal combustion engine can issue mainly is determined by the released heat of cylinder fuel burning, and the heat
Size limited by cylinder air amount is often recycled into.Exhaust-driven turbo-charger exhaust-gas turbo charger passes through the exhaust gas energy using engine discharge
Amount improves admission pressure, can effectively increase the air inflow of engine, be widely used at present in marine internal combustion engine field.
But the system still has following disadvantage:
(1) performance indicator is poor under low engine speeds.When the slow-speed of revolution due to engine exhaust energy deficiency, secondary speed compared with
Low, exhaust-driven turbo-charger exhaust-gas turbo charger is often difficult to play a role, and establishes effective admission pressure.Such characteristic also determines exhaust gas whirlpool
Wheel pressurization haves the shortcomings that the margin of power is small, soot exhaust amount is big in low engine speeds；
(2) transient response is poor.After engine transient load, fuel system can increase sharply circulating fuel injection quantity, to adapt to
The power demand of engine, and exhaust-driven turbo-charger exhaust-gas turbo charger from exhaust energy change to establish the needs of new admission pressure compared with
For a long time, turbo-charged engine is caused to occur the phenomenon that stabilization period is long, soot exhaust amount is big during loading；
(3) exhaust energy utilization rate is lower.Delivery temperature after ship middling speed internal combustion engine turbocharger is up to 300-400
DEG C, 25% fuel oil energy is still contained in engine exhaust and is not yet utilized.And to prevent engine from mechanical load occur
Transfinite, booster hypervelocity the problems such as, partial engine high operating condition use exhaust gas bypass technology, an exhaust gas is directly discharged into
In atmosphere, biggish energy dissipation is caused, while causing environmental problem.
Summary of the invention
The purpose of the application is to provide a kind of internal-combustion engine system, can eliminate or at least improve the above-mentioned of the prior art and ask
Topic.
The application provides a kind of internal-combustion engine system, comprising: internal combustion engine；Turbine is connected to the exhaust end of the internal combustion engine
Mouth and the gas for receiving the internal combustion engine discharge；Compressing device is connected to the air inlet port of the internal combustion engine and to the internal combustion
Machine supplies the gas through being pressurized；Wherein, the turbine is connect with a power generator, and the power generator can be driven to generate
Electric energy, the electric energy are supplied to the compressing device.
According to the internal-combustion engine system of the application, the compressing device is driven by actuation means.
According to the internal-combustion engine system of the application, the operation of the compressing device is independently of the turbine.
According to the internal-combustion engine system of the application, the power generator is connected to power grid, and electric energy is supplied to by the power grid
The actuation means.
According to the internal-combustion engine system of the application, the actuation means include motor.
In the exhaust end of internal combustion engine, the present invention blows turbine, the rotation power generation of turbine drives generator, warp by exhaust gas
Frequency converter is incorporated to network of ship, uses for equipment such as electronic pressurizations.Compared with exhaust turbocharging system, turbine in the system
Mechanical connection between compressing device is efficiently separated, and the apolegamy of turbine and its control of operation area are made, can be with row
Gas capacity utilization ratio is up to target, without considering the matching relationship between turbine and compressor, engine, effectively avoid by
Portion is bypassed to atmosphere, improves the exhaust energy utilization rate of engine.The freedom degree of turbine, compressing device mounting arrangements
Also it is further promoted, convenient for being considered as a whole according to the actual conditions of work.
Detailed description of the invention
Following drawings of the invention is incorporated herein as part of the present invention for the purpose of understanding the present invention.Shown in the drawings of this hair
Bright embodiment and its description, principle used to explain the present invention.In the accompanying drawings,
Fig. 1 shows the schematic diagram of the internal-combustion engine system according to the application.
Specific embodiment
In the following description, a large amount of concrete details are given so as to provide a more thorough understanding of the present invention.So
And it will be apparent to one skilled in the art that the present invention may not need one or more of these details and be able to
Implement.In other examples, in order to avoid confusion with the present invention, for some technical characteristics well known in the art not into
Row description.
Fig. 1 shows the schematic diagram of the internal-combustion engine system according to the application.The system includes frequency converter 2, generator 3, turbine
Machine 4, internal combustion engine 5, compressing device 6 and motor 7.Compressing device 6 is connected to the air inlet port of internal combustion engine 5, and fresh air is through pressing
Device of air 6 is supplied to internal combustion engine 5 after being pressurized.The intake and exhaust direction of internal combustion engine 5 is as shown by arrows in figure.
Turbine 4 is connected to the exhaust port of internal combustion engine 5.After the gas that internal combustion engine 5 is discharged enters turbine 4 by the road,
Turbine 4 is pushed to rotate, turbine 4 and generator 3 are mechanically connected, and then can the rotation power generation of driven generator 3.The electric energy of generation
Such as it can be connected to the grid after frequency converter 2.In marine internal combustion engine field, the electric energy that turbine drives generator generates may be incorporated into ship
Oceangoing ship power grid, thus, it is possible to alleviate the electrical problem on ship.
Turbine 4, which can be, determines geometry turbine or variable cross section turbine, more optimizedly uses variable cross section turbine, is sending out
The different operating conditions of motivation operation effectively improve turbine efficiency, improve exhaust energy utilization by adjusting the circulation area of turbine
Rate.
It recycles the gas that internal combustion engine 5 is discharged to generate electricity as power source drive generator 3, not only solves gas direct emission
Bring pollution problem, while energy dissipation is avoided by the energy in gas recovery.
The electric energy that generator 3 generates can be used for driving the motor 7 connecting with compressing device 6, therefore, turbine 4 and pressure
Without mechanical connection between device of air 6, i.e., the operation of compressing device 6 is independently of turbine 4.
The electric energy that generator 3 generates can also access network of ship by frequency converter 2 as shown in Figure 1, make for compressing device 6 etc.
With.In the air inlet port side of internal combustion engine 5, network of ship is powered through frequency converter 8 to motor 7, motor 7 and 6 machine of compressing device
Tool connection, and then compressing device 6 is driven to be pressurized, the fresh air of pressurization is provided to internal combustion engine 5.Motor 7 can be according to internal combustion engine 5
Demand of the different operating conditions (high and low, transient state) to pressurized air is operated in adjust revolving speed and power, transports compressing device 6 always
Row improves pressure charging system efficiency, improves transient response and overall performance in high efficient area.
According to the internal-combustion engine system of the application, compressing device 6 is individually connect with turbine 4, is not only greatly simplified
System, and since its pressure ratio is not limited by internal-combustion engine rotational speed or exhaust energy, it can be according to interior in whole service region
The actual demand of the air inflow of combustion engine is freely adjusted, and optimizes the performance and discharge index of internal combustion engine full working scope.In addition, motor adds
Fast better performances can be such that air inlet is pressurized rapidly, be effectively improved internal combustion engine transient characteristic according to the power demand of internal combustion engine, reduce
Soot exhaust in anxious loading procedure.
Therefore, according to the internal-combustion engine system of the application with transient response is good, overall performance and emission level are excellent, exhaust
The features such as capacity usage ratio is high, space layout facilitates.
In addition to for boat diesel engine, the application can be used for other engine other fields, reach energy-saving and environment-friendly purpose.
The present invention has been explained by the above embodiments, but it is to be understood that, above-described embodiment is only intended to
The purpose of citing and explanation, is not intended to limit the invention to the scope of the described embodiments.Furthermore those skilled in the art
It is understood that the present invention is not limited to the above embodiments, introduction according to the present invention can also be made more kinds of member
Variants and modifications, all fall within the scope of the claimed invention for these variants and modifications.Protection scope of the present invention by
The appended claims and its equivalent scope are defined.
Claims (5)
1. a kind of internal-combustion engine system, comprising:
Internal combustion engine；
Turbine is connected to the exhaust port of the internal combustion engine and receives the gas of the internal combustion engine discharge；
Compressing device is connected to the air inlet port of the internal combustion engine and supplies the gas through being pressurized to the internal combustion engine；
Wherein, the turbine is connect with a power generator, and the power generator can be driven to produce electricl energy, the electric energy quilt
It is supplied to the compressing device.
2. internal-combustion engine system according to claim 1, wherein the compressing device is driven by actuation means.
3. internal-combustion engine system according to claim 1, wherein the operation of the compressing device is independently of the turbine.
4. internal-combustion engine system according to claim 2, wherein the power generator is connected to power grid, passes through the power grid
Supply power to the actuation means.
5. internal-combustion engine system according to claim 4, wherein the actuation means include motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711455872.7A CN109973207A (en) | 2017-12-28 | 2017-12-28 | A kind of internal-combustion engine system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711455872.7A CN109973207A (en) | 2017-12-28 | 2017-12-28 | A kind of internal-combustion engine system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109973207A true CN109973207A (en) | 2019-07-05 |
Family
ID=67074329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711455872.7A Pending CN109973207A (en) | 2017-12-28 | 2017-12-28 | A kind of internal-combustion engine system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109973207A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114320575A (en) * | 2022-01-06 | 2022-04-12 | 一汽解放汽车有限公司 | Internal combustion engine system and control method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101182805A (en) * | 2007-12-25 | 2008-05-21 | 河北师范大学 | Internal-combustion engines exhaust turbine dynamoelectric compressor system |
| JP2012021511A (en) * | 2010-07-16 | 2012-02-02 | Isuzu Motors Ltd | Exhaust energy recovery device of internal combustion engine |
| CN207892700U (en) * | 2017-12-28 | 2018-09-21 | 中国船舶重工集团公司第七一一研究所 | A kind of internal-combustion engine system |
-
2017
- 2017-12-28 CN CN201711455872.7A patent/CN109973207A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101182805A (en) * | 2007-12-25 | 2008-05-21 | 河北师范大学 | Internal-combustion engines exhaust turbine dynamoelectric compressor system |
| JP2012021511A (en) * | 2010-07-16 | 2012-02-02 | Isuzu Motors Ltd | Exhaust energy recovery device of internal combustion engine |
| CN207892700U (en) * | 2017-12-28 | 2018-09-21 | 中国船舶重工集团公司第七一一研究所 | A kind of internal-combustion engine system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114320575A (en) * | 2022-01-06 | 2022-04-12 | 一汽解放汽车有限公司 | Internal combustion engine system and control method thereof |
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