CN102046946B - For balancing the method and system of cylinder of diesel engine - Google Patents
For balancing the method and system of cylinder of diesel engine Download PDFInfo
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- CN102046946B CN102046946B CN200980119581.8A CN200980119581A CN102046946B CN 102046946 B CN102046946 B CN 102046946B CN 200980119581 A CN200980119581 A CN 200980119581A CN 102046946 B CN102046946 B CN 102046946B
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- cylinder
- delivery temperature
- endurance
- initial time
- described cylinder
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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
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/008—Controlling each cylinder individually
- F02D41/0085—Balancing of cylinder outputs, e.g. speed, torque or air-fuel ratio
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
- F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
- F02D35/028—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining the combustion timing or phasing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1439—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the position of the sensor
- F02D41/1441—Plural sensors
- F02D41/1443—Plural sensors with one sensor per cylinder or group of cylinders
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
- F02D41/1446—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being exhaust temperatures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
- F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
- F02D35/021—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions using an ionic current sensor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
- F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
- F02D35/023—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining the cylinder pressure
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
A kind of for balancing the method for the cylinder (3) of diesel engine (2), in the method, limit the initial time of the combustion process of each cylinder (3), and the initial time of the restriction of combustion process and specific setting value are compared.If the initial time of the combustion process limited is different from this setting value, then change the initial time injected fuel in cylinder (3).In addition, measure the delivery temperature of each cylinder and change the endurance injected fuel in cylinder (3) based on this delivery temperature, the output produced by cylinder with equilibrium.
Description
Technical field
The present invention relates to a kind of method balancing cylinder of diesel engine.The invention still further relates to the system of planting for balancing cylinder of diesel engine.
Background technique
In piston engine, there are differences in power generation between the difference cylinder of motor.This difference is such as to cause in their life time the change in their running due to the parts depreciation of ejecting system.Difference on cylinder output can have a negative impact to engine running, such as, add the load on crank and other parts, and the vibration of motor also can increase.Therefore, attempt to keep balance between cylinder, that is, between cylinder, make combustion process similarity as much as possible.The problem relevant with the power difference between cylinder appears in the diesel engine with shared pressure suppling system more commonly, in this diesel engine, use heavy oil as fuel.
Summary of the invention
The object of this invention is to provide a kind of solution of improvement of the cylinder load balanced in diesel engine.
Object of the present invention mainly realizes as disclosed in claims 1 and 11.In the present invention, define the initial time of the combustion process in each cylinder, and the initial time of the restriction of described combustion process and specific setting value are compared.If the initial time of the restriction of described combustion process is different from described setting value, then change the initial time that fuel sprays.In addition, measure the delivery temperature of each cylinder, and change based on described delivery temperature the power that the endurance injected fuel in described cylinder produces by described cylinder with equilibrium.
This present invention achieves considerable advantage.By regulating the initial time of combustion process individually and injecting fuel into endurance in each cylinder, will power difference between balance cylinder.The power difference caused due to the parts depreciation of ejecting system between cylinder can be compensated, and keeps most perfect condition in the whole life time operating at part of thus cylinder.In addition, the load variations caused due to dissimilar fuel or the change of same quality of fuel can be compensated, and therefore these load variations have impact little as far as possible to engine running.This system also can be applied to the maintenance to parts such as the such as spargers of fuel injection system.The control unit of this system can be configured to the change of the setting value of monitoring component, and thus, if this setting value has exceeded represent the limiting value needing to replace these component, then this control unit notice is about the needs changing these component.In addition, due to independent sparger adjusted value need not be provided for each shared pressure suppling system, the sparger of less expensive can therefore be used in this ejecting system.
Embodiment
Come in an illustrative manner below with reference to accompanying drawings to explain the present invention in more detail, accompanying drawing schematically illustrates according to a system of the present invention.
Accompanying drawing depicts the example according to the system 1 for balancing cylinder of diesel engine 3 of the present invention.This system 1 is configured to combine with reciprocating engine 2.Motor 2 is large-scale diesel engines, and it is such as the master motor in boats and ships or power station and assistant engine.This motor 2 has the shared pressure suppling system 4 for supplying fuel in cylinder 3.Such as, heavy oil is used as the fuel in motor 2.Control ejecting system 4 to electrically.
This motor comprises several cylinders 3, and wherein each cylinder has the sparger 5 for injecting fuel in the firing chamber of cylinder.This supply system comprises the common rail 9 for pressurized fuel.Sparger 5 is connected to common rail 9.Fuel system 4 comprises fuel source 6 (such as, fuel tank) and for fuel is fed to low pressure pump 11 common rail 9 and high-pressure service pump 12 from fuel source 6.Each sparger 5 is flowed with common rail 9 by fuel channel 10 and is communicated with.
When motor 2 runs, fuel is pumped into high-pressure service pump 12 along supply passage 13 from fuel tank 6 by low pressure pump 11, and is then pumped in common rail 9 via supply passage 13 by high-pressure service pump 12.Fuel is directed to sparger 5 by from common rail 9.When expecting, the injected device 5 of fuel is ejected in cylinder 3.
Motor comprises system 1, carrys out balance cylinder 3 by system 1, that is, combustion process kept similar as much as possible between cylinder 3.System 1 comprises the control unit 14 controlled from sparger 5 to the injection of the fuel of cylinder 3.Control unit 14 defines the initial time injected fuel in each cylinder.Control unit 14 adjusts the initial time that fuel sprays.In addition, control unit 14 controls the endurance that fuel sprays.
Control unit 14 limits the initial time of combustion process, that is, start corresponding degree in crank angle with burning in each cylinder 3.Based on the position measurement (beginning of the degree in crank angle instruction combustion process corresponding with cylinder pressure) to cylinder pressure or the measurement based on the torsional vibration to crank, the initial time of combustion process can be limited.In these two kinds of methods, angle of swing can be measured by the angle transducer 16 being applicable to this object.The survey data of angle transducer 16 is sent to control unit 14.
In the method based on the position measurement to cylinder pressure, cylinder pressure in each cylinder 3 is measured by the measuring device 15 be suitable for, measuring device 15 is such as pressure transducer, KS (acceleration transducer) or resistance strain gauge, and itself and cylinder 3 are arranged in combination.Ionization measurement can also be utilized to measure cylinder pressure.Control unit 14 is transferred to cylinder pressure with to the survey data of crank rotation angle.Control unit 14 is based on the initial time survey data of cylinder pressure and crank rotation angle being limited to the combustion process in each cylinder 3.Once the cylinder pressure measured reaches the numerical value showing that the combustion process in cylinder 3 has started, then corresponding degree in crank angle will be limited.The beginning of combustion process is represented by the change such as increasing the coefficient of angularity occurred in curve at cylinder pressure.The initial time of combustion process also can by measuring maximum cylinder pressure to limit.
When limiting the initial time of combustion process when measuring based on torsional vibration, this system includes the measuring device of the torsional vibration for measuring crank.The angle transducer 16 of the angle of swing measuring crank can be used as this measuring device, receive the survey data about the magnitude of torsional vibration and the angle of swing of this torsional vibration of generation by this.This survey data is sent to control unit 14.On the basis of this survey data, control unit 14 limits the initial time of the combustion process in each cylinder 3.
Once define the initial time of combustion process, then the initial time of the restriction of combustion process and specific setting value compare by control unit 14.This setting value can such as based on engine load and common rail 9 pressure and pre-determine.If the initial time of the restriction of combustion process is different from this setting value, then control unit 14 changes the initial time of fuel injection individually for each cylinder.The initial time that fuel sprays is changed to and makes the initial time of combustion process close to this setting value.The initial time sprayed due to fuel is quite accurately consistent with the initial time of combustion process, therefore can change into identical with the setting value of the initial time of combustion process by the initial time that fuel sprays.
In addition, in order to the power that balance cylinder produces, control unit 14 changes the endurance injected fuel in cylinder 3.The endurance of fuel injection is changed individually for each cylinder.Once make above-mentioned adjustment to the initial time that fuel sprays, then change the endurance that fuel sprays, that is, the initial time that fuel sprays is as desired.The endurance injected fuel in cylinder can be changed, make the power equalization that each cylinder 3 produces.Can based on the delivery temperature of cylinder 3 or the endurance changing fuel injection based on the measurement of the torsional vibration to crank.
If have adjusted the endurance that fuel sprays based on delivery temperature, then system 1 comprises the temperature transducer 18 associated with each cylinder of the delivery temperature for measuring cylinder.Temperature transducer 18 is installed on the outlet pipe 19 of cylinder.The survey data of temperature transducer 18 is sent to control unit 14.Control unit 14 changes the endurance of fuel injection based on the delivery temperature recorded.Change the endurance of fuel injection so that the power of balance cylinder 3 generation.Control unit 14 can change the endurance that fuel sprays, and makes the delivery temperature in each cylinder 3 balanced.The delivery temperature recorded and setting value are compared.If the delivery temperature measured value of a cylinder is different from this setting value in cylinder 3, then changes the endurance injected fuel in described cylinder, make its delivery temperature be in its setting value.The mean value of the delivery temperature recorded or predetermined value can be used as the setting value of delivery temperature, the load that the size of this setting value can depend on such as motor or the fuel used.If delivery temperature is too low, then extend the endurance that fuel sprays.Similarly, if delivery temperature is too high, then shorten the endurance that fuel sprays.
If based on the torsional vibration to crank measurement and limit fuel spray endurance, then system comprises the measuring device of the torsional vibration for measuring crank.The angle transducer 16 measuring the angle of swing of crank can be used as this measuring device, receives the survey data about the magnitude of torsional vibration and the angle of swing of the vibration that twists by this at one time.This survey data is sent to control unit 14.Control unit 14 changes the endurance injected fuel in each cylinder individually, makes the torsional vibration of crank reduce to minimum.
The endurance that fuel sprays can utilize above two kinds of methods (that is, based on the delivery temperature of cylinder and the torsional vibration based on crank) to change.Then, measure or first utilize a measurement (such as, the measurement of delivery temperature) by utilizing these two simultaneously and another measured as backup measurement, the endurance that fuel sprays can be adjusted.When needed, such as, when main measurement is unsuccessful, can use this another measure.
The present invention is not limited in shown mode of execution, on the contrary, can expect several modification within the scope of the appended claims.The initial time of combustion process can limit by the electric current in the solenoid valve of measurement sparger 5 or by measuring fueling injection pressure.Fueling injection pressure can by be arranged in common rail 9 or sparger fuel channel 10 in pressure switch or pressure transducer measure.
Such as, according to a mode of execution, based on delivery temperature with and change based on torsional vibration the power that the endurance injected fuel in cylinder 3 produces by cylinder with equilibrium.In this way, as long as consider the endurance of spraying, the validity of adjustment can just be improved further.
In addition, the method comprises such stage, that is, assess the correctness of the measurement of delivery temperature, and if the delivery temperature of cylinder is measured wrong, then determines the change of the endurance that fuel sprays based on torsional vibration.The situation that the measurement of this delivery temperature is wrong is such as that the measurement sensor experiences failure of delivery temperature or the delivery temperature 18 of cylinder depart from too large situation relative to preset temperature value or for the mean value of the delivery temperature of cylinder.This provide following advantage: the error condition of impact to the sensor of the adjustment of the endurance of spraying can be identified, and motor might not quit work.In this case, if the delivery temperature of cylinder 18 is relative to preset temperature value or depart from for the mean value of delivery temperature more than 50%, then a kind of mode limiting the change of the endurance injected fuel in cylinder 3 is based on torsional vibration.Such as, for the predetermined temperature value of specific load can be the reference value of specific load and the speed recorded in adjust system.If the delivery temperature of cylinder 18 is relative to preset temperature value or depart from for the mean value of delivery temperature more than 10%, then the another kind of mode limiting the change of the endurance injected fuel in cylinder 3 is based on torsional vibration.This provide following advantage: the defining method of adjustment had influence on the endurance of spraying can be changed immediately, thus can select by a kind of defining method (in the case, based on the method for delivery temperature) mainly used.These two kinds of ways can be realized by the function of the control unit 14 changing system.
Claims (18)
1. a method for the cylinder (3) of balance diesel engine (2), the method comprises the following steps:
Limit the initial time of the combustion process in each cylinder (3),
The initial time of the restriction of described combustion process and particular set value are compared, and
If the initial time of the restriction of described combustion process is different from described setting value, then change the initial time injected fuel in described cylinder (3),
It is characterized in that,
Measure the delivery temperature of each cylinder (18),
The endurance injected fuel in described cylinder (3) is changed, the power produced by described cylinder (3) with equilibrium based on delivery temperature, and
Measure the torsional vibration of engine crank, and change the endurance injected fuel in described cylinder (3) based on delivery temperature and torsional vibration, the power produced by described cylinder with equilibrium.
2. method according to claim 1, is characterized in that, if described delivery temperature is too low, then and the endurance that the fuel that prolongation associates with cylinder sprays, if described delivery temperature is too high, then the endurance that the fuel that shortening associates with cylinder sprays.
3. method according to claim 1 and 2, is characterized in that, changes the endurance injected fuel in described cylinder (3), makes the delivery temperature reaching expectation.
4. method according to claim 3, is characterized in that, mean value or the predetermined value of the delivery temperature recorded are used as setting value.
5. method according to claim 1, it is characterized in that, the method also comprised as the next stage: the correctness assessing the measurement to delivery temperature (18), and if wrong to the measurement of the described delivery temperature (18) of described cylinder, then determine the change of the endurance injected fuel in described cylinder (3) based on torsional vibration.
6. method according to claim 1, it is characterized in that, if the described delivery temperature (18) of described cylinder departs from preset temperature value or departs from the mean value of described delivery temperature of described cylinder (3), then limit the change of the endurance injected fuel in described cylinder (3) based on torsional vibration.
7. method according to claim 1, it is characterized in that, measure the position (15,16) of the cylinder pressure in each cylinder (3), and limit the initial time of described combustion process based on institute's position measurement of described cylinder pressure.
8. method according to claim 6, is characterized in that, described cylinder pressure is measured by KS, resistance strain gauge or the pressure transducer (15) arranged in combination with described cylinder (3).
9. method according to claim 1, is characterized in that, measures the torsional vibration of described engine crank, and limits the initial time of described combustion process based on described torsional vibration measurement.
10. the system (1) of the cylinder (3) of a balance diesel engine (2), this system comprises control unit (14) and will combine the temperature transducer (18) of the delivery temperature for measuring described cylinder of installation with each cylinder (3), and described control unit (14) is configured to perform following operation:
Limit the initial time of the combustion process in each cylinder (3),
The initial time of the restriction of described combustion process and setting value are compared, and
If the initial time of the restriction of described combustion process is different from described setting value, then change the initial time injected fuel in described cylinder (3),
It is characterized in that, described control unit (14) is configured to based on the measurement of delivery temperature being changed to the endurance injected fuel in described cylinder (3), the power produced by described cylinder with equilibrium, and
Described system comprises the device (16) of the torsional vibration for measuring crank, and described control unit (14) is configured to change based on described delivery temperature and torsional vibration the endurance injected fuel in described cylinder (3), the power produced by described cylinder (3) with equilibrium.
11. systems according to claim 10, it is characterized in that, described control unit is provided in the endurance that the described delivery temperature fuel that too low time delay length associates with cylinder sprays, and the endurance that the fuel that shortening associates with cylinder when described delivery temperature is too high sprays.
12. systems according to claim 10 or 11, is characterized in that, described control unit (14) is configured to change the endurance that fuel sprays, and makes the setting value of the expectation of the described delivery temperature reaching described cylinder (3).
13. systems according to claim 12, is characterized in that, the setting value of described expectation is mean value or the predetermined value of described delivery temperature.
14. systems according to claim 10, it is characterized in that, this system also comprises the device of the correctness of the measurement of the described delivery temperature of assessment (18), and if the measurement of the described delivery temperature (18) of described cylinder is wrong, then limit the change of the endurance injected fuel in described cylinder (3) based on torsional vibration.
15. systems according to claim 14, it is characterized in that, when the described delivery temperature (18) that described control unit (14) is provided in described cylinder departs from preset temperature value or departs from the mean value of described delivery temperature of described cylinder (3), change based on torsional vibration the endurance injected fuel in described cylinder (3).
16. systems according to claim 10, it is characterized in that, described system (1) comprises the device (15 of the position for measuring the cylinder pressure in each cylinder (3),, and described control unit (14) is set to based on limiting described combustion process to institute's position measurement of described cylinder pressure initial time 16).
17. systems according to claim 16, is characterized in that, the device of the described position for measuring described cylinder pressure comprises the KS, resistance strain gauge or the pressure transducer (15) that arrange in combination with described cylinder.
18. systems according to claim 16 or 17, it is characterized in that, the device of the described position for measuring described cylinder pressure comprises the angle transducer (16) of the angle of swing measuring described engine crank.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20085496A FI122489B (en) | 2008-05-26 | 2008-05-26 | Method and apparatus for stabilizing the diesel engine cylinders |
| FI20085496 | 2008-05-26 | ||
| PCT/FI2009/050436 WO2009144374A1 (en) | 2008-05-26 | 2009-05-26 | Method and system for balancing the cylinders of a diesel engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102046946A CN102046946A (en) | 2011-05-04 |
| CN102046946B true CN102046946B (en) | 2016-03-09 |
Family
ID=39523147
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200980119581.8A Active CN102046946B (en) | 2008-05-26 | 2009-05-26 | For balancing the method and system of cylinder of diesel engine |
| CN2009801195822A Pending CN102046949A (en) | 2008-05-26 | 2009-05-26 | Method and system for balancing the cylinders of a diesel engine |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009801195822A Pending CN102046949A (en) | 2008-05-26 | 2009-05-26 | Method and system for balancing the cylinders of a diesel engine |
Country Status (6)
| Country | Link |
|---|---|
| EP (2) | EP2310654B1 (en) |
| KR (3) | KR101516039B1 (en) |
| CN (2) | CN102046946B (en) |
| FI (2) | FI122489B (en) |
| RU (1) | RU2494270C2 (en) |
| WO (2) | WO2009144374A1 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IN2014MN00741A (en) | 2011-10-05 | 2015-07-03 | Engineered Propulsion Systems Inc | |
| GB2504655A (en) * | 2012-06-11 | 2014-02-12 | Cosworth Ltd | Controllable fuel injection system for a two-stroke, compression ignition, engine |
| US10288031B2 (en) * | 2013-11-14 | 2019-05-14 | Toyota Jidosha Kabushiki Kaisha | Controller for internal combustion engine |
| US9890728B2 (en) * | 2015-08-21 | 2018-02-13 | Ford Global Technologies, Llc | Engine operating system and method |
| US9822727B2 (en) | 2015-10-29 | 2017-11-21 | General Electric Company | Method and systems for adjusting engine cylinder operation based on a knock sensor output |
| US11428157B2 (en) | 2017-07-21 | 2022-08-30 | General Atomics Aeronautical Systems, Inc. | Enhanced aero diesel engine |
| CN109306914B (en) * | 2018-09-26 | 2022-06-28 | 潍柴动力股份有限公司 | Large-cylinder-diameter engine control method and device |
| DE102020200222B4 (en) * | 2020-01-09 | 2022-04-28 | Mtu Friedrichshafen Gmbh | Method for controlling an internal combustion engine and internal combustion engine |
| CN112943467A (en) * | 2021-02-05 | 2021-06-11 | 潍柴动力股份有限公司 | Injection correction method and system for engine exhaust temperature consistency and storage medium |
| CN112943464B (en) * | 2021-03-26 | 2023-04-28 | 武汉理工大学 | Method and device for compensating non-uniformity of acting of air cylinder |
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| US6000384A (en) * | 1998-03-06 | 1999-12-14 | Caterpillar Inc. | Method for balancing the air/fuel ratio to each cylinder of an engine |
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2008
- 2008-05-26 FI FI20085496A patent/FI122489B/en active
-
2009
- 2009-05-26 KR KR1020107026999A patent/KR101516039B1/en active IP Right Grant
- 2009-05-26 FI FI20095576A patent/FI122491B/en active
- 2009-05-26 WO PCT/FI2009/050436 patent/WO2009144374A1/en active Application Filing
- 2009-05-26 KR KR1020107026998A patent/KR101770430B1/en active IP Right Grant
- 2009-05-26 EP EP09754027.2A patent/EP2310654B1/en active Active
- 2009-05-26 EP EP09754028.0A patent/EP2310655B1/en active Active
- 2009-05-26 CN CN200980119581.8A patent/CN102046946B/en active Active
- 2009-05-26 KR KR1020157030853A patent/KR20150129044A/en not_active Application Discontinuation
- 2009-05-26 RU RU2010153310/06A patent/RU2494270C2/en active
- 2009-05-26 CN CN2009801195822A patent/CN102046949A/en active Pending
- 2009-05-26 WO PCT/FI2009/050437 patent/WO2009144375A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0447697A2 (en) * | 1990-03-23 | 1991-09-25 | Mitsubishi Jukogyo Kabushiki Kaisha | Apparatus for suppressing torsional vibration of a crank shaft of a diesel engine |
| CN1473238A (en) * | 2001-08-29 | 2004-02-04 | ��к������ʽ���� | Engine, engine exhaust temperature controlling device and controlling method |
| US7178507B1 (en) * | 2005-10-31 | 2007-02-20 | Gm Global Technology Operations, Inc. | Engine cylinder-to-cylinder variation control |
Also Published As
| Publication number | Publication date |
|---|---|
| FI122491B (en) | 2012-02-15 |
| FI122489B (en) | 2012-02-15 |
| CN102046949A (en) | 2011-05-04 |
| RU2494270C2 (en) | 2013-09-27 |
| KR101770430B1 (en) | 2017-09-05 |
| KR20110021833A (en) | 2011-03-04 |
| WO2009144374A1 (en) | 2009-12-03 |
| EP2310654B1 (en) | 2019-08-28 |
| FI20085496A0 (en) | 2008-05-26 |
| EP2310655B1 (en) | 2016-04-06 |
| EP2310654A1 (en) | 2011-04-20 |
| FI20095576A (en) | 2009-11-27 |
| EP2310655A1 (en) | 2011-04-20 |
| FI20095576A0 (en) | 2009-05-26 |
| KR20110031154A (en) | 2011-03-24 |
| WO2009144375A1 (en) | 2009-12-03 |
| RU2010153310A (en) | 2012-07-10 |
| FI20085496A (en) | 2009-11-27 |
| KR101516039B1 (en) | 2015-05-04 |
| CN102046946A (en) | 2011-05-04 |
| KR20150129044A (en) | 2015-11-18 |
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