CN101338698B - Humid air diesel motor - Google Patents
Humid air diesel motor Download PDFInfo
- Publication number
- CN101338698B CN101338698B CN2007101357849A CN200710135784A CN101338698B CN 101338698 B CN101338698 B CN 101338698B CN 2007101357849 A CN2007101357849 A CN 2007101357849A CN 200710135784 A CN200710135784 A CN 200710135784A CN 101338698 B CN101338698 B CN 101338698B
- Authority
- CN
- China
- Prior art keywords
- turbine
- variable area
- controller
- wastegate
- engine
- 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.)
- Active
Links
- 239000000446 fuel Substances 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 17
- 238000007599 discharging Methods 0.000 claims description 9
- 230000003190 augmentative effect Effects 0.000 claims description 2
- 239000000295 fuel oil Substances 0.000 abstract description 12
- 239000002699 waste material Substances 0.000 abstract description 3
- 230000002000 scavenging effect Effects 0.000 description 39
- 238000002485 combustion reaction Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 5
- 238000007634 remodeling Methods 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 230000003134 recirculating effect Effects 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
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
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
- F02B37/22—Control of the pumps by varying cross-section of exhaust passages or air passages, e.g. by throttling turbine inlets or outlets or by varying effective number of guide conduits
-
- 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
- F02B33/00—Engines characterised by provision of pumps for charging or scavenging
- F02B33/44—Passages conducting the charge from the pump to the engine inlet, e.g. reservoirs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/022—Adding fuel and water emulsion, water or steam
- F02M25/032—Producing and adding steam
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2220/00—Application
- F05B2220/40—Application in turbochargers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2220/00—Application
- F05D2220/40—Application in turbochargers
-
- 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
The invention relates to a heavy fuel operative large-scale diesel engine (1), comprising a turbosupercharger (6) having an exhaust-driven turbine (7) with variable area and a compressor driven by the turbine to provide air-intake to the engine cylinder. The engine also is provided with an air-intake/air-outtake air-humidification unit (12) and a controllable waste gate (19). The exhaust-driven turbine (7) with the variable area and the controllable waste gate (19) are controlled by a controller (50), accordingly lower NO<SUB>X</SUB> discharge is reached for gross load and partial load, simultaneously fuel oil consumption rate is fundamentally not increased.
Description
Technical field
The present invention relates to a kind of large-sized diesel motor that the heavy fuel operation of scavenging air humidifier is installed, such as the master motor of ocean-going vessel.
Background technique
Generally consciousness to environmental problem promptly strengthens.In IMO (International Maritime Organization) inside, constantly there is discussion to the emission limit set of marine atmospheric pollution form.The management organization of different regions, the world is taking similar measure.A kind of example is the current EPA that is discussing (U.S.-Environmental Protection Agency (EPA)) rule that is proposed.
NO in the exhaust
XCan pass through directly and/or the minimizing of minimizing method indirectly.Direct method is the method that directly influences engine combustion process.The actual degree that reduces depends on engine type and minimizing method, but generally from 10% to changing greater than 50%.
Indirect method is a kind of method of setting the minimizing emission level under the situation that does not change engine performance by its fuel optimization, and the equipment of its utilization does not form the part of motor itself.Up to now, the most successful indirect method is to remove NO
XSCR (selective catalytic reduction) method.Described method is added ammonia or urea to described exhaust before and can be reduced and surpass 95% NO by enter catalytic converter (catalytic converter) in exhaust
XLevel.Indirect method can be used together in conjunction with the present invention, the present invention relates to a kind of direct method that reduces emission level.
Wherein a kind of known direct method is that scavenging air is carried out humidification.The high absolute water content that is produced has reduced maximum combustion temperature and has made NO in the exhaust
XLevel reduces.Use the shortcoming of scavenging air humidification to be: when using the turbocharger (turbocharger) of the full load coupling that is fit to, the scavenging air pressure during partial load is too low.Lower scavenging air pressure can cause lower compressibility, thereby fuel efficiency becomes bad when causing partial load.In addition, high water content can produce too much energy in blast air, and if obtain acceptable delivery temperature level, described too much energy can/must walk around the turbine of turbocharger.Typically, described too much energy is removed via wastegate (waste gate) (bypass), if and described too much energy can not reclaim in power turbine or similar devices, then the energy efficiency of wet air motor is with respect to non-wet air motor even will further reduce.
Summary of the invention
Under this background, the purpose of this invention is to provide a kind of large-sized diesel motor of the heavy fuel operation with scavenging air humidifier, described motor can overcome or reduce above-indicated shortcoming at least.Particularly, the purpose of this invention is to provide a kind of large-sized diesel motor of heavy fuel operation, it can provide low NO under the situation that specific fuel consumption is produced minimum influence
XEmission level.
Described purpose realizes by the large-sized diesel motor that a kind of heavy fuel operation is provided, described motor comprises: turbocharger, and it has the variable area turbine of exhaust gas drive and by the turbo-driven compressor that is used for scavenging air is supplied to described cylinder of described variable area; Be positioned at the scavenging air humidification unit in described compressor downstream; Exhaust manifolds, its with described exhaust from the described variable area turbine of described cylinder guidance; And the controllable wastegate that is arranged in described exhaust manifolds.
By in large two-stroke diesel engine in conjunction with humidification unit, controlled wastegate and the turbocharger of variable area turbine, can obtain the basic NO that reduces
XEmission level and can not having a negative impact to fuel consumption rate.
Described motor can comprise controller, and described controller links to described controllable wastegate and described variable area turbine, and described controller can be configured to the area of described variable area turbine and the unlatching of described wastegate are controlled.
Described controller can be configured to described variable area turbine and described controllable wastegate controls so that predetermined scavenging air pressure is followed the engine loading curve.
Described controller can be used as area that direct measure controls described variable area turbine following described predetermined curve, and described controller can be configured to only open the described wastegate as indirect measure when described direct measure can not fully be followed described predetermined curve.
Described controller can be configured to the specific fuel consumption that described variable area turbine and described may command wastegate are controlled to minimize described motor is made NO simultaneously
XDischarging or its weighted mean value keep below given threshold value.
Described controller can link to described humidification unit, and described controller can be configured to control the absolute water content of described scavenging air so that NO
XDischarging is lower than given threshold value.
Described controllable wastegate can be connected to the power consumption device such as power turbine.
Another object of the present invention provides a kind of method of fuel consumption rate of the wet air large-sized diesel motor that is used to reduce turbo charged heavy fuel operation.Described purpose realizes by following steps: by reducing the turbine area under the lower or medium engine load conditions, the pressure of described scavenging air during the augmenting portion load, and only to higher engine load conditions, make a part of exhaust walk around the turbine of described turbocharger medium.
Other purpose, feature, advantage and character according to large two-stroke diesel engine of the present invention will be clearer by following detailed description.
Description of drawings
In the following detailed part of this specification, the illustrative embodiments that illustrates is with reference to the accompanying drawings illustrated the present invention in further detail, in the accompanying drawings:
Fig. 1 is the sketch map according to the intake and exhaust system of the explosive motor of first embodiment of the invention,
Fig. 2 shows the scavenging air pressure of motor of two kinds of prior aries and the chart of engine loading,
Fig. 3 shows the motor of two kinds of prior aries and according to the scavenging air pressure of motor of the present invention and the chart of engine loading,
Fig. 4 shows the motor of two kinds of prior aries and according to the scavenging air pressure of two kinds of motors of the present invention and the chart of engine loading,
Fig. 5 show the motor of two kinds of prior aries and according to the present invention the maximum combustion pressure of two kinds of motors of remodeling and the chart of engine loading,
Fig. 6 show the motor of two kinds of prior aries and according to the present invention the absolute water content in the scavenging air of two kinds of motors of remodeling and the chart of engine loading,
Fig. 7 show the motor of two kinds of prior aries and according to the present invention the compressor exit temperature of two kinds of motors of remodeling and the chart of engine loading,
Fig. 8 shows the motor of two kinds of prior aries and the relative specific fuel consumption of two kinds of motors of remodeling and the chart of engine loading according to the present invention,
Fig. 9 shows the relative NO of the motor of two kinds of prior aries and two kinds of motors of remodeling according to the present invention
XThe chart of emission index and engine loading, and
Figure 10 shows the sketch map according to the intake and exhaust system of the explosive motor of second embodiment of the invention.
Embodiment
In the following detailed description, the present invention will be described by preferred implementation.The turbo charged large two-stroke diesel engine 1 that slightly illustrates crosshead (crosshead) type of Fig. 1 with gas handling system and vent systems.Described motor 1 has air inlet receiver 2 and exhaust receiver 3.The outlet valve that is under the jurisdiction of the firing chamber is with 4 expressions.Described motor 1 can for example be used as the master motor in the ocean-going vessel, or is used for the stationary engine of operate generator in the power station.The total output of described motor for example can be 5,000 to 110, in the scope of 000kW.Described motor 1 is operated with reduced fuel oil, and therefore described motor 1 is provided with the reduced fuel oil system, and wherein said reduced fuel oil system comprises the reduced fuel oil jar of heating and the reduced fuel oil pipe-line system (not shown) of heating.Because reduced fuel oil is unusual thickness at ambient temperature, so these heating elements of fuel injection system heat during engine shutdown equally.And reduced fuel oil system (not shown) is provided with recirculating system, and described recirculating system makes reduced fuel oil keep flowing through each parts of described reduced fuel oil system during engine shutdown.Recirculation has guaranteed that the parts that do not have self special-purpose heating equipment of reduced fuel oil system keep warm during engine shutdown, and recirculation helps the degassing of reduced fuel oil system.
Air inlet is sent to the scavenging air mouth (not shown) of each cylinder from air inlet receiver 2.When outlet valve 4 is opened, exhaust flows in the exhaust receiver 3 by first exhaust manifolds, and upwards flow to the variable area turbine (variablearea turbine) 7 of turbocharger 6 by first exhaust manifolds 5, exhaust flows away by second exhaust manifolds 20 from described variable area turbine 7.Variable area turbine 7 drives via air inlet 10 compressed and supplied machines 9 by axle 8.Compressor 9 transfers to the air inlet duct 11 that leads to air inlet receiver 2 with the air inlet of pressurization.
Air inlet in the conduit 11 is carried out humidification by 12 pairs of humidification unit with 200 ℃ of air inlet/scavenging airs that leave compressor roughly, and makes the temperature of scavenging air be reduced to 36 to 80 ℃ level.In said embodiment, humidification unit 12 is a kind of scrubber (scrubber), and wherein a large amount of water is injected into and evaporates.The water that injects is preferably warmer relatively, as be used to from the used heat of (water) cooling system (not shown) of motor 1 to seawater (when as described in motor when being installed in the ocean-going vessel) or river (near the stationary power generation station motor is installed in the river time) heating.Alternately, also can use the water of non-pre-warm.The absolute water content level that is produced will be when warm water be transported to humidification unit 12 water content levels.
In a preferred embodiment, the humidification unit is a scrubber 12, and described scrubber 12 is operated and is used to make the air that leaves humidification unit outlet to have to be roughly 100% relative moisture and to be roughly 70 ℃ temperature.The absolute humidity of described air inlet/scavenging air approximately is five times of scavenging air that leave the interstage cooler of conventional engine.Therefore, be included in the scavenging air and be included in energy value in the exhaust equally apparently higher than the energy value of conventional engine (non-wet air motor).Thus, when the high capacity level, can from exhaust, extract more energy.High absolute water content in the scavenging air has guaranteed low peak value and average combustion temperature, has reduced the NO during burning thus
XGeneration.
The air of humidification is delivered to air inlet receiver 2 via the auxiliary gas fan 16 that motor 17 drives, and described auxiliary gas fan 16 pressurizes to inlet stream under low or partial load condition.When higher load, the scavenging air of the compression that compressor 9 transmission of turbocharger are enough is then walked around auxiliary gas fan 16 via one-way valve 15.
When with the large two-stroke diesel engine (" reference " curve) of the non-wet air of routine relatively the time, the large two-stroke diesel engine (" non-control " curve) that does not have the variable area turbocharger and do not have a conventional wet air of wastegate will have relatively low scavenging air pressure when partial load, as shown in Figure 2.Relatively low scavenging air pressure can produce relatively low compressibility and correspondingly relatively low maximum cylinder pressure in the large two-stroke diesel engine of wet air, and it can produce higher relatively specific fuel consumption when partial load.
Fig. 3 shows when partial load by using the influence of controllable wastegate (" WG control " curve) to scavenging air pressure.In partial load is 50% o'clock, and the wet air motor with controlled wastegate obtains and conventional non-wet air motor scavenging air pressure much at one, and reveals tangible improvement with respect to " non-control " wet air motor table.
Fig. 4 shows when partial load by being used in combination variable area turbine and controllable wastegate (" WG+VTA control " curve) influence to scavenging air pressure.By using this two kinds of measures, scavenging air pressure is significantly higher than the scavenging air pressure of conventional non-wet air motor when partial load, and even with respect to the wet air motor that does not provide these measures more improvement is arranged.
The maximum combustion pressure that is produced is shown in Figure 5.Obviously, motor with variable area turbocharger and controlled wastegate has significantly higher maximum combustion pressure than the wet air motor that does not have these measures when the partial load of varying level, in these partial load levels, its positive influences specific fuel consumption.
As shown in Figure 6, these measures also make the absolute water content level of different piece load level increase, although NO in the present embodiment
XThe reduction of discharge amount can be offset by the increase of firing pressure, yet the increase of the absolute water content level of different piece load level still can reduce the NO under these partial load levels
XDischarging.High water content in the scavenging air is produced by the higher outlet temperature of the air that leaves compressor 9.As shown in Figure 7, higher air temperature provides the bigger potential that is used for evaporable water.
Fig. 8 shows at the motor that is used for prior art and is used for according to the fuel consumption rate under the different loads condition of motor of the present invention.Do not have wastegate control and obviously have maximum specific fuel consumption with the wet air motor (" reference " curve) that does not have the variable area turbine.Yet, should be noted that the energy of escaping by the non-controlled wastegate that for example uses can be used for driving the power consumption device such as power turbine, reduces total fuel consumption rate thus in this type of engine.
At engine loading is 50% and 75% o'clock, and conventional non-wet air motor has and the essentially identical fuel consumption rate of mode of execution that has wastegate control.At engine loading is 100% o'clock, and the fuel consumption rate of conventional non-wet air motor is better than the mode of execution that has wastegate control slightly.Mode of execution with wastegate control and variable area turbine is to have best fuel consumption rate at 50% o'clock at engine loading, and is to have in 75% o'clock and the identical fuel consumption rate of non-wet air motor of routine at engine loading.Engine loading is 100% o'clock, and the motor with wastegate control and variable area turbine is more not enough slightly than conventional non-wet air motor.Generally speaking, the wet air motor with wastegate control and variable area turbine will have the average fuel consumption rate of the non-wet air motor fuel consumption rate of the routine of equaling substantially.
Fig. 9 shows the motor of prior art and according to the NO of motor of the present invention
XDischarging.Described figure clearly show that the NO that uses the motor of wet air for all
XDischarging all is lower than conventional non-wet air motor substantially.Mode of execution with wastegate control and variable area turbine has and the conventional essentially identical fuel consumption rate of non-wet air motor in essence.Thus, realized NO
XMovable basic minimizing and can not become bad fuel consumption rate.
Last figure calculating behind is all based on specific engine model.Yet these results can transfer to any other large two-stroke diesel engine.
Figure 10 shows another mode of execution according to motor of the present invention.Motor according to described mode of execution is roughly the same with the motor of describing with reference to figure 1, and just the outlet of wastegate 19 is connected to power turbine 31.The energy of escaping through wastegate 19 reclaims in power turbine 31 relatively effectively, and can obtain thus than the higher overall fuel efficiency shown in above example and the mode of execution.If use power turbine with variable area turbine (not shown), then the result will become better, because power turbine will be as controllable wastegate effect (the variable area turbine can not provide the zero delivery of process (corresponding to the wastegate of closure) area, but the power turbine of variable area turbine can be controlled in the level corresponding to the 40-50% of closed wastegate).
In embodiments of the present invention, direct measure follow predetermined scavenging air pressure diagram as the area that the controller 50 of direct measure is controlled variable area turbines 7, and controller 50 is configured to have only the wastegate of just opening as indirect measure 19 when can not fully be followed predetermined curve.
In embodiments of the present invention, in order to minimize the specific fuel consumption of motor 1, make NO simultaneously
XDischarging or its weighted mean value keep below given threshold value, and controller 50 is configured to variable area turbine 7 and may command wastegate 19 are controlled.
In a kind of mode of execution (not shown), in order to make NO
XDischarging keeps below given threshold value, and controller 50 links to humidification unit 12, and is configured to control the absolute water content of scavenging air.
The invention has the advantages that it allows large two-stroke diesel engine to have lower NO
XEmission level is kept lower fuel consumption rate simultaneously.
" comprise " element and the step of not getting rid of other as the term that uses in the claims.The term of Shi Yonging " a kind of " or " one " do not get rid of multiple or a plurality of in the claims.
Not should be understood to be restriction to protection domain to the reference character of Shi Yonging in the claims.
Although in above specification, attempt to cause of the present invention those be considered to the attention of the feature of particular importance; yet be to be understood that; the feature of granting patent shown in claimed any that above mention and/or the accompanying drawing of claimant and the combination of these features, no matter these features whether at this by lay special stress on.And, should be understood that those skilled in the art can retrofit and improves its device after considering present disclosure, and still fall in the scope and spirit that following claim sets forth.
Claims (6)
1. the large two-stroke diesel engine (1) of heavy fuel operation comprises:
Turbocharger (6), it has the variable area turbine (7) of exhaust gas drive and the compressor (9) that is used for air inlet is supplied to cylinder that is driven by described variable area turbine (7);
Be positioned at the air inlet humidification unit (12) in described compressor (9) downstream;
Exhaust manifolds (5), its with described exhaust from the described variable area turbine of described cylinder guidance (7);
Be arranged in the controllable wastegate (19) of described exhaust manifolds, and
Controller (50), described controller (50) link to described controllable wastegate (19) and described variable area turbine (7), and described controller is configured to control the unlatching of the area and the described wastegate (19) of described variable area turbine (7),
Wherein said controller (50) is configured to control described variable area turbine (7) and described controllable wastegate (19) so that predetermined suction pressure is followed the engine loading curve, and
Wherein said controller (50) is controlled described variable area turbine (7) as direct measure area to be following described engine loading curve, and described controller (50) only is configured to open the described wastegate (19) as indirect measure when described engine loading curve can not be fully followed in described direct measure.
2. large two-stroke diesel engine according to claim 1, wherein said controller (50) are configured to control described variable area turbine (7) and described may command wastegate (19) keeps NO simultaneously with the specific fuel consumption that minimizes described motor (1)
XDischarging or its weighted mean value are lower than given threshold value.
3. large two-stroke diesel engine according to claim 1, wherein said controller (50) links to described humidification unit (12), and is configured to control the absolute water content of described air inlet to keep NO
XDischarging is lower than given threshold value.
4. according to each described large two-stroke diesel engine in the claim 1 to 3, wherein said controllable wastegate (19) is connected to power consumption device (31).
5. large two-stroke diesel engine according to claim 4, wherein said power consumption device are power turbine (31).
6. the method for the fuel consumption rate of a wet air large two-stroke diesel engine that is used to reduce turbo charged heavy fuel operation, described method comprises:
By under lower or medium engine load conditions, reducing the turbine area, the suction pressure during the augmenting portion load, and
Only to higher engine load conditions, make a part of exhaust walk around the turbine of turbocharger medium.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007174006A JP4562098B2 (en) | 2007-07-02 | 2007-07-02 | Humidified diesel engine |
| JP2007174006 | 2007-07-02 | ||
| JP2007-174006 | 2007-07-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101338698A CN101338698A (en) | 2009-01-07 |
| CN101338698B true CN101338698B (en) | 2010-08-04 |
Family
ID=40212851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101357849A Active CN101338698B (en) | 2007-07-02 | 2007-08-16 | Humid air diesel motor |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4562098B2 (en) |
| KR (1) | KR100982225B1 (en) |
| CN (1) | CN101338698B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5044601B2 (en) * | 2009-04-02 | 2012-10-10 | エムエーエヌ・ディーゼル・アンド・ターボ・フィリアル・アフ・エムエーエヌ・ディーゼル・アンド・ターボ・エスイー・ティスクランド | Large two-cycle diesel engine with exhaust gas scrubber |
| JP2011144766A (en) * | 2010-01-15 | 2011-07-28 | Mitsubishi Heavy Ind Ltd | Exhaust gas denitration system and ship equipped therewith, and control method for the exhaust gas denitration system |
| CN103382885A (en) * | 2012-05-03 | 2013-11-06 | 天纳克（中国）有限公司 | Large-scale engine SCR denitration method and system |
| JP6016954B2 (en) * | 2015-01-05 | 2016-10-26 | 三菱重工業株式会社 | Exhaust gas denitration system, ship equipped with the same, and control method of exhaust gas denitration system |
| JP5964467B2 (en) * | 2015-01-05 | 2016-08-03 | 三菱重工業株式会社 | Exhaust gas denitration system, ship equipped with the same, and control method of exhaust gas denitration system |
| KR102267030B1 (en) | 2018-08-13 | 2021-06-18 | 워터 본드 하이드로필릭 프로덕츠 엘엘씨 | Turbo charger |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1097151C (en) * | 1998-10-23 | 2002-12-25 | 株式会社日立制作所 | Gas turbine power generation equipment and air humidifying apparatus |
| CN1434200A (en) * | 2003-02-27 | 2003-08-06 | 上海交通大学 | Pressure increased diesel wet air-diesel homogeneous combustion system |
| CN1461876A (en) * | 2002-05-21 | 2003-12-17 | 曼B与W狄赛尔公司 | Large superchared explosive motor |
| CN1664330A (en) * | 1998-10-23 | 2005-09-07 | 株式会社日立制作所 | Gas turbine power generation equipment and air humidifier |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030018708A (en) * | 2001-08-31 | 2003-03-06 | 현대자동차주식회사 | Air boost control system of car engine |
| JP2003293859A (en) * | 2002-04-01 | 2003-10-15 | Ishikawajima Harima Heavy Ind Co Ltd | Energy supply system |
| JP4254606B2 (en) * | 2004-04-28 | 2009-04-15 | トヨタ自動車株式会社 | Multistage turbocharging system for internal combustion engines |
| KR100724994B1 (en) | 2005-12-28 | 2007-06-04 | 현대중공업 주식회사 | Highly efficient charge air moisturizing device for internal combustion engine |
-
2007
- 2007-07-02 JP JP2007174006A patent/JP4562098B2/en active Active
- 2007-08-16 CN CN2007101357849A patent/CN101338698B/en active Active
- 2007-08-31 KR KR1020070088238A patent/KR100982225B1/en active IP Right Grant
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1097151C (en) * | 1998-10-23 | 2002-12-25 | 株式会社日立制作所 | Gas turbine power generation equipment and air humidifying apparatus |
| CN1664330A (en) * | 1998-10-23 | 2005-09-07 | 株式会社日立制作所 | Gas turbine power generation equipment and air humidifier |
| CN1461876A (en) * | 2002-05-21 | 2003-12-17 | 曼B与W狄赛尔公司 | Large superchared explosive motor |
| CN1434200A (en) * | 2003-02-27 | 2003-08-06 | 上海交通大学 | Pressure increased diesel wet air-diesel homogeneous combustion system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2009013807A (en) | 2009-01-22 |
| KR100982225B1 (en) | 2010-09-14 |
| CN101338698A (en) | 2009-01-07 |
| JP4562098B2 (en) | 2010-10-13 |
| KR20090003072A (en) | 2009-01-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4592816B2 (en) | Large turbocharged diesel engine with SCR reactor | |
| US8789367B2 (en) | System for recovering engine exhaust energy | |
| CN102425488B (en) | Adjustable two-stage supercharging sequential system applied to V-shaped diesel engine | |
| CN101338698B (en) | Humid air diesel motor | |
| JP5820523B2 (en) | Large low-speed turbocharged two-stroke internal combustion engine having a crosshead and an exhaust gas recirculation system, and an operation method thereof | |
| SE517844C2 (en) | Combustion engine arrangement and procedure for reducing harmful emissions | |
| US20110154819A1 (en) | System for recovering engine exhaust energy | |
| CN101749148A (en) | Internal combustion engine with two exhaust gas turbochargers connected in series | |
| WO2010092945A1 (en) | Gas engine system and method for controlling same | |
| JP3674254B2 (en) | EGR device for supercharged engine | |
| KR20180072552A (en) | Large turbocharged two-stroke compression-igniting engine with exhaust gas recirculation | |
| CN105065110A (en) | Organic rankine cycle and electric power dual-drive internal combustion engine pressurization system | |
| CN205207005U (en) | Large -scale diesel engine tail gas circulation processing system | |
| CN205445831U (en) | Satisfy exhaust gas recirculatioon constant voltage equipment of high supercharging than engine adaptive control | |
| CN106837615A (en) | A kind of multistage EGR turbo charge systems | |
| CN203655418U (en) | EGR (exhaust gas recirculation) system for marine medium-speed diesel engine | |
| KR101845487B1 (en) | Large two-stroke turbocharged compression ignited internal combustion engine with an exhaust gas purification system | |
| CN212583814U (en) | Successive supercharging system, engine assembly and vehicle | |
| CN210289903U (en) | Closed cooling system for recycling bypass exhaust gas energy of diesel engine | |
| CN208380692U (en) | Dynamoelectric compressor and turbocharger tandem pressure charging system | |
| CN206360809U (en) | A kind of EGR turbo charge systems | |
| CN207892700U (en) | A kind of internal-combustion engine system | |
| CN104806345B (en) | A kind of electric engine gas distribution device | |
| KR101970829B1 (en) | Large two-stroke turbocharged compression ignited internal combustion engine with an exhaust gas purification system | |
| CN110332036B (en) | Closed cooling system for recycling energy of bypass waste gas of diesel 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 | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: MANDIESEL CORPORATION DK, MAN DIESEL ENGINES EUROP Free format text: FORMER NAME: MANDIESEL CORPORATION DK Owner name: MAN DIESEL AND TURBINE COMPANY, MAN DIESEL ENGINES Free format text: FORMER NAME: MANDIESEL CORPORATION DK, MAN DIESEL ENGINES EUROPE AG ASSOCIATES |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Copenhagen, Denmark Patentee after: Mann Diesel & Turbine, an associate company of Mann Diesel & Turbine Europe AG Address before: Copenhagen, Denmark Patentee before: MAN DIESEL & TURBO DEUTSCHLAND Address after: Copenhagen, Denmark Patentee after: MAN DIESEL & TURBO DEUTSCHLAND Address before: Copenhagen, Denmark Patentee before: MAN DIESEL A/S |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Copenhagen, Denmark Patentee after: Mannone solutions (mannone solutions Germany) branch Address before: Copenhagen, Denmark Patentee before: Mann Diesel & Turbine, an associate company of Mann Diesel & Turbine Europe AG |
|
| CP01 | Change in the name or title of a patent holder |