CN114396342B - Control method capable of realizing transient switching of multiple combustion modes of engine - Google Patents
Control method capable of realizing transient switching of multiple combustion modes of engine Download PDFInfo
- Publication number
- CN114396342B CN114396342B CN202210049278.2A CN202210049278A CN114396342B CN 114396342 B CN114396342 B CN 114396342B CN 202210049278 A CN202210049278 A CN 202210049278A CN 114396342 B CN114396342 B CN 114396342B
- Authority
- CN
- China
- Prior art keywords
- fuel
- mode
- temperature combustion
- dual
- combustion mode
- 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
Images
Classifications
-
- 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
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
-
- 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
- F02D41/30—Controlling fuel injection
- F02D41/3011—Controlling fuel injection according to or using specific or several modes of combustion
-
- 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
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure type
-
- 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
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure type
- F02D41/40—Controlling fuel injection of the high pressure type with means for controlling injection timing or duration
- F02D41/402—Multiple injections
-
- 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
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure type
- F02D2041/389—Controlling fuel injection of the high pressure type for injecting directly into the cylinder
-
- 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
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
The invention discloses a control method capable of realizing multi-combustion-mode transient switching of an engine, wherein the combustion modes comprise a dual-fuel mode and a single-fuel mode, the dual-fuel mode comprises a dual-fuel low-temperature combustion mode and a dual-fuel high-temperature combustion mode, the single-fuel mode comprises a single-fuel low-temperature combustion mode and a single-fuel high-temperature combustion mode, and the combustion modes are switched according to a fuel type, a fuel supply mode, an injection mode and a combustion mode. The invention can switch among a plurality of combustion modes, reduces power change and torque fluctuation when the combustion modes are switched, and realizes closed cycle control of the full working condition range and the combustion process.
Description
Technical Field
The invention relates to the technical field of engine control, in particular to a control method capable of realizing transient switching of multiple combustion modes of an engine.
Background
Compared with the traditional diesel engine, the dual-fuel engine has the advantage of low exhaust pollutant emission, and compared with the traditional gasoline engine, the dual-fuel engine has the advantage of high fuel economy. The operation range is narrow due to the large influence of the mixed gas state in the cylinder, and the cylinder can only operate under partial load.
However, since the engine needs to continuously change the load in actual use, it is necessary to use a different combustion mode for the engine in order to apply the existing advanced combustion mode to the actual engine. The quality of the combustion mode switching control directly reflects the quality of the performance of the engine in the transient operation process, and how to realize the transient and stable switching among different combustion modes is also an important research content of the combustion mode strategy and is a barrier which must be crossed by the real commercialization of the dual-fuel engine.
Therefore, those skilled in the art have been able to provide a control method capable of implementing transient switching of multiple combustion modes of an engine, so as to overcome the defect of narrow operating range of the existing dual-fuel engine.
Disclosure of Invention
In view of the defects in the prior art, the technical problem to be solved by the invention is how to provide a control method which has a wide operation range and can realize transient switching of multiple combustion modes of an engine in a smooth transition manner.
In order to achieve the above purpose, the present invention provides a control method capable of implementing transient switching of multiple combustion modes of an engine, where the combustion modes include a dual-fuel mode and a single-fuel mode, the dual-fuel mode includes a dual-fuel low-temperature combustion mode and a dual-fuel high-temperature combustion mode, the single-fuel mode includes a single-fuel low-temperature combustion mode and a single-fuel high-temperature combustion mode, and the combustion modes are switched according to a fuel type, a fuel supply mode, an injection mode and a combustion mode.
Further, the dual fuel mode uses two direct injection injectors, a first injector and a second injector, respectively, and the fuel in the dual fuel mode includes a low activity fuel and a high activity fuel.
Further, in the dual-fuel low-temperature combustion mode, the first fuel injector injects high-octane fuel, and the second fuel injector injects high-cetane fuel; the first fuel injector injects fuel in the front section of the intake stroke, and the second fuel injector injects fuel in the front section of the compression stroke.
Further, in the dual-fuel high-temperature combustion mode, the first fuel injector injects high-octane fuel, and the second fuel injector injects high-cetane fuel; the first oil injector injects oil at the front section of the intake stroke, and the second oil injector injects oil near the top dead center.
Further, the single fuel mode uses one direct injection injector and the fuel in the single fuel mode is a high cetane fuel.
Further, in the single-fuel low-temperature combustion mode, the injection frequency of the direct injection injector is divided into multiple injections, and the last injection is located near the top dead center.
Further, in the single-fuel high-temperature combustion mode, the direct injection injector injects a plurality of times in the vicinity of the top dead center.
Further, when the engine runs at medium and high loads, the dual-fuel low-temperature combustion mode, the dual-fuel high-temperature combustion mode, the single-fuel low-temperature combustion mode and the single-fuel high-temperature combustion mode are directly switched.
Further, when the engine runs under a small load, the dual-fuel low-temperature combustion mode, the dual-fuel high-temperature combustion mode and the single-fuel low-temperature combustion mode are directly switched to the single-fuel high-temperature combustion mode; when the single-fuel high-temperature combustion mode is switched to the dual-fuel low-temperature combustion mode, the dual-fuel high-temperature combustion mode and the single-fuel low-temperature combustion mode, in the first cycle after the mode switching, 4.5% -11.1% of low-activity fuel is added or 2.6% -6.7% of high-activity fuel is added.
The invention discloses a control method capable of realizing transient switching of multiple combustion modes of an engine, which comprises the following steps:
receiving a working mode switching instruction of the engine according to the operating condition;
changing parameters of an engine controller according to the working mode switching instruction;
and switching the working mode of the engine according to the parameters of the controller.
The invention has at least the following beneficial technical effects:
the control method capable of realizing the transient switching of the multiple combustion modes of the engine can switch among the multiple combustion modes, so that the advantages of different types of fuels and different fuel supply and combustion modes are fully exerted, and the heat efficiency of the engine can be improved; meanwhile, in the process of switching the combustion modes, smooth transition among the combustion modes can be realized by controlling the fuel supply amount, the supply time and the supply times, and the power change and the torque fluctuation during the switching of the combustion modes are reduced, so that the smoothness of a vehicle can be improved, and the closed cycle control of the full working condition range and the combustion process is realized.
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.
Drawings
FIG. 1 is a schematic structural diagram of a dual-fuel engine provided by an embodiment of the invention
In the figure, the position of the upper end of the main shaft,
1-air inlet channel, 2-auxiliary injector, 3-first injector, 4-first fuel, 5-cylinder cover, 6-second fuel, 7-second injector, 8-exhaust channel and 9-combustion chamber.
Detailed Description
The technical contents of the preferred embodiments of the present invention will be made clear and easily understood by referring to the drawings attached to the specification. The present invention may be embodied in many different forms of embodiments and the scope of the invention is not limited to the embodiments set forth herein.
In the drawings, structurally identical elements are represented by like reference numerals, and structurally or functionally similar elements are represented by like reference numerals throughout the several views. The size and thickness of each component shown in the drawings are arbitrarily illustrated, and the present invention is not limited to the size and thickness of each component. The thickness of the components may be exaggerated where appropriate in the figures to improve clarity.
The invention provides a control method capable of realizing multi-combustion mode transient switching of an engine, as shown in figure 1, the dual-fuel engine mainly comprises a combustion chamber 9, a cylinder cover 5, an air inlet passage 1 and an air exhaust passage 8, wherein an auxiliary injector 2 is arranged on the air inlet passage 1, a first oil injector 3 and a second oil injector 7 are arranged on the cylinder cover 5, the first oil injector 3 injects a first fuel 4, and the second oil injector 7 injects a second fuel 6. The first injector 3 and the second injector 7 are both direct injection injectors, and the first fuel 4 and the second fuel 6 are different fuels.
The combustion modes of the dual-fuel engine comprise a dual-fuel mode and a single-fuel mode, the dual-fuel mode comprises a dual-fuel low-temperature combustion mode and a dual-fuel high-temperature combustion mode, and the single-fuel mode comprises a single-fuel low-temperature combustion mode and a single-fuel high-temperature combustion mode. In the running process of the engine, the different combustion modes adjust respective fuel type, fuel supply mode, injection mode and combustion mode to switch the combustion modes.
The dual fuel mode uses two direct injection injectors, and the fuel in the dual fuel mode includes a low activity fuel and a high activity fuel. The low-activity fuel comprises one or a mixture of more of high-octane value fuels such as gasoline, methanol, ethanol, propanol, butanol, isooctane and the like, and the high-activity fuel comprises one or a mixture of more of high-cetane value fuels such as diesel oil, fischer-Tropsch synthetic diesel oil (F-T diesel oil), biodiesel, dimethyl ether, n-heptane, PODE and the like.
In the dual-fuel low-temperature combustion mode, the first fuel injector injects high-octane fuel, and the second fuel injector injects high-cetane fuel; the first injector injects oil in the earlier intake stroke, and the second injector injects oil in the earlier compression stroke, namely the first injector injects oil in the front part of the intake stroke, and the second injector injects oil in the front part of the compression stroke.
In a dual-fuel high-temperature combustion mode, the first fuel injector injects high-octane fuel, and the second fuel injector injects high-cetane fuel; the first injector injects fuel in the early intake stroke, and the second injector injects fuel near the top dead center.
The single fuel mode uses a direct injection injector, with either the first injector or the second injector being identified based on the fuel injected.
In the single-fuel low-temperature combustion mode, the direct injection injector injects fuel with a high cetane number; the injection times of the fuel injector are divided into multiple times, and the last time of fuel injection is located near the top dead center.
In the single-fuel high-temperature combustion mode, the direct injection injector injects fuel with high cetane number; the injection is performed in a manner of a plurality of injections near the top dead center.
When the engine runs under medium and high loads, the dual-fuel low-temperature combustion mode, the dual-fuel high-temperature combustion mode, the single-fuel low-temperature combustion mode and the single-fuel high-temperature combustion mode are directly switched by adopting respective operation control strategies, and transient and stable mode transition can be realized.
When the engine runs under a small load, the dual-fuel low-temperature combustion mode, the dual-fuel high-temperature combustion mode and the single-fuel low-temperature combustion mode can be directly transited to the single-fuel high-temperature combustion mode without any adjustment measures; when the single-fuel high-temperature combustion mode is transited to the dual-fuel low-temperature combustion mode, the dual-fuel high-temperature combustion mode and the single-fuel low-temperature combustion mode, the transient and stable switching of the combustion mode can be realized by adjusting and increasing 4.5 to 11.1 percent of low-activity fuel in the first cycle after the mode switching or increasing 2.6 to 6.7 percent of oil mass of high-activity fuel.
Specifically, when the engine works under a small-load working condition, an air inlet heating mode is required during mode switching, and the air inlet heating temperature ranges from 40 ℃ to 60 ℃; the first direct-injection oil sprayer of the dual-fuel low-temperature combustion mode adopts single injection, the injection time is-350-280 CA ATDC, and the oil injection amount accounts for 60-80% of the total oil injection amount under the working condition; the second direct injection injector adopts a single injection strategy, the injection time is-70-50 CA ATDC, and the injection quantity accounts for 20-40% of the total injection quantity under the working condition; the first direct-injection oil sprayer of the dual-fuel high-temperature combustion mode adopts single injection, the injection time is-350-280 CA ATDC, and the oil injection amount accounts for 70-90% of the total oil injection amount under the working condition; the second direct injection injector adopts a single injection strategy, the injection time is-10-1 CA ATDC, and the injection quantity accounts for 10-30% of the total injection quantity under the working condition; the single-fuel low-temperature combustion mode adopts a multi-injection strategy, the range of the last injection time is-10-1 CA ATDC, and the injection quantity accounts for 10-30% of the total injection quantity under the working condition; the single fuel high temperature combustion mode employs a single injection strategy near top dead center.
Specifically, under the medium load of the engine, the first direct-injection oil injector in the dual-fuel low-temperature combustion mode adopts single injection, the injection time is-350-280-degree CA ATDC, and the oil injection amount accounts for 70-90% of the total oil injection amount under the working condition; the second direct-injection oil injector adopts a single-injection strategy, the range of the injection time is-70-50 CA ATDC, and the oil injection amount accounts for 10-30% of the total oil injection amount under the working condition; the first direct-injection oil sprayer of the dual-fuel high-temperature combustion mode adopts single injection, the injection time is-350-280 CA ATDC, and the oil injection amount accounts for 70-90% of the total oil injection amount under the working condition; the second direct-injection oil injector adopts a single-injection strategy, the range of the injection time is-10-1 CA ATDC, and the oil injection amount accounts for 10-30% of the total oil injection amount under the working condition; a multi-injection strategy is adopted in a single-fuel low-temperature combustion mode, the range of the last injection moment is-10-1 CA ATDC, and the fuel injection quantity accounts for 10-30% of the total fuel injection quantity under the working condition; the single fuel high temperature combustion mode employs a single injection strategy near top dead center.
Specifically, under high load of the engine, the first direct-injection oil injector in the dual-fuel low-temperature combustion mode adopts single injection, the injection time is-350-280-degree CA ATDC, and the oil injection amount accounts for 40-60% of the total oil injection amount under the working condition; the second oil sprayer adopts a two-time spraying strategy, the range of the first spraying time is-40-60 CA ATDC, and the oil spraying amount accounts for 20-30% of the total oil spraying amount under the working condition; the range of the second injection time is-1 degree CA ATDC to-10 degree CA ATDC, and the oil injection amount accounts for 20-30% of the total oil injection amount under the working condition; the first direct-injection oil sprayer of the dual-fuel high-temperature combustion mode adopts single injection, the injection time is-350-280 CA ATDC, and the oil injection amount accounts for 70-90% of the total oil injection amount under the working condition; the second direct-injection oil injector adopts a single-injection strategy, the range of the injection time is-10-1 CA ATDC, and the oil injection amount accounts for 10-30% of the total oil injection amount under the working condition; the single-fuel low-temperature combustion mode adopts a multi-injection strategy, the range of the last injection time is-10-1 CA ATDC, and the injection quantity accounts for 10-30% of the total injection quantity under the working condition; the single fuel high temperature combustion mode employs a single injection strategy near top dead center.
The invention discloses a control method capable of realizing transient switching of multiple combustion modes of an engine, which specifically comprises the following steps:
receiving a working mode switching instruction of the engine according to a specific operating condition;
changing the controller parameters of the engine controller according to the working mode switching instruction;
and switching the working mode of the engine according to the controller parameters.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (3)
1. A control method capable of achieving multi-combustion-mode transient switching of an engine is characterized in that combustion modes comprise a dual-fuel mode and a single-fuel mode, the dual-fuel mode comprises a dual-fuel low-temperature combustion mode and a dual-fuel high-temperature combustion mode, the single-fuel mode comprises a single-fuel low-temperature combustion mode and a single-fuel high-temperature combustion mode, and the combustion modes are switched according to fuel types, fuel supply modes, injection modes and combustion modes;
the dual fuel mode uses two direct injection injectors, a first injector and a second injector respectively, and the fuel in the dual fuel mode comprises high octane fuel and high cetane fuel;
in the dual-fuel low-temperature combustion mode, the first fuel injector injects fuel with a high octane value, and the second fuel injector injects fuel with a high cetane value; the first oil injector injects oil at the front section of an intake stroke, the injection time is minus 350-DEG CA ATDC to minus 280-DEG CA ATDC, the second oil injector injects oil at the front section of a compression stroke, and the injection time is minus 70-DEG CA ATDC to minus 50-DEG CA ATDC;
in the dual-fuel high-temperature combustion mode, the first fuel injector injects high-octane fuel, and the second fuel injector injects high-cetane fuel; the first oil injector injects oil at the front section of an intake stroke, the injection time is-350-degree CA ATDC to-280-degree CA ATDC, the second oil injector injects oil at a compression top dead center, and the injection time is-10-degree CA ATDC to-1-degree CA ATDC;
the single fuel mode uses a direct injection injector, and the fuel in the single fuel mode is high cetane fuel;
under the single-fuel low-temperature combustion mode, the injection frequency of the direct injection injector is injected for multiple times, the last injection is positioned at a compression top dead center, and the injection time of the last injection is-10-1-degree CA ATDC;
under the single-fuel high-temperature combustion mode, the direct injection fuel injector performs single injection at the compression top dead center, and the injection time is-10-1-degree CA ATDC;
when the engine runs under a small load, the dual-fuel low-temperature combustion mode, the dual-fuel high-temperature combustion mode and the single-fuel low-temperature combustion mode are directly switched to the single-fuel high-temperature combustion mode; when the single-fuel high-temperature combustion mode is switched to the dual-fuel low-temperature combustion mode, the dual-fuel high-temperature combustion mode and the single-fuel low-temperature combustion mode, in the first cycle after the mode switching, the high-octane fuel is added with 4.5% -11.1% of fuel or the high-cetane fuel is added with 2.6% -6.7% of oil.
2. The control method capable of realizing the transient switching of the multiple combustion modes of the engine as claimed in claim 1, wherein when the engine runs at medium and high loads, the dual-fuel low-temperature combustion mode, the dual-fuel high-temperature combustion mode, the single-fuel low-temperature combustion mode and the single-fuel high-temperature combustion mode are directly switched.
3. The control method capable of achieving engine multi-combustion-mode transient switching according to claim 1, characterized by comprising the steps of:
receiving a working mode switching instruction of the engine according to the operating condition;
changing parameters of an engine controller according to the working mode switching instruction;
and switching the working mode of the engine according to the parameters of the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210049278.2A CN114396342B (en) | 2022-01-17 | 2022-01-17 | Control method capable of realizing transient switching of multiple combustion modes of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210049278.2A CN114396342B (en) | 2022-01-17 | 2022-01-17 | Control method capable of realizing transient switching of multiple combustion modes of engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114396342A CN114396342A (en) | 2022-04-26 |
| CN114396342B true CN114396342B (en) | 2022-11-22 |
Family
ID=81230137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210049278.2A Active CN114396342B (en) | 2022-01-17 | 2022-01-17 | Control method capable of realizing transient switching of multiple combustion modes of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114396342B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114645793B (en) * | 2022-05-23 | 2023-06-13 | 四川中能西控低碳动力装备有限公司 | Gas engine |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010101194A (en) * | 2008-10-21 | 2010-05-06 | Japan Energy Corp | Gasoline engine |
| EP2449222B1 (en) * | 2009-07-03 | 2020-04-08 | Volvo Truck Corporation | Method for selecting between two operation modes in a dual fuel internal combustion engine of the diesel-type and a dual fuel internal combustion engine of the diesel-type operable according |
| CN102278216A (en) * | 2011-05-26 | 2011-12-14 | 上海交通大学 | Multimode multi-fuel combustion system |
| CN105041512B (en) * | 2015-05-31 | 2017-08-11 | 清华大学 | A kind of dual fuel engine lean burn method |
| US10227934B2 (en) * | 2015-09-29 | 2019-03-12 | Cummins Inc. | Dual-fuel engine combustion mode transition controls |
| WO2017123210A1 (en) * | 2016-01-12 | 2017-07-20 | Quantlogic Corporation | Multi-fuel combustion methods, devices and engines using the same |
| CN110318892B (en) * | 2019-06-26 | 2022-01-14 | 哈尔滨工程大学 | Ethanol fumigation/diesel dual-fuel engine multi-mode combustion organization method |
| US20210156321A1 (en) * | 2019-08-09 | 2021-05-27 | Tianjin University | Diesel methanol combined combustion engine and control method thereof |
| CN111156093B (en) * | 2019-12-31 | 2023-01-06 | 潍柴动力股份有限公司 | Control method and device for diesel-alcohol dual-fuel engine |
-
2022
- 2022-01-17 CN CN202210049278.2A patent/CN114396342B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN114396342A (en) | 2022-04-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Asad et al. | Ethanol-fueled low temperature combustion: a pathway to clean and efficient diesel engine cycles | |
| CN109441626B (en) | Dual-fuel engine combustion organization method adopting main and auxiliary fuel injectors and manifold for multiple injection | |
| CN109296446B (en) | Diesel micro-injection ignition natural gas engine combustion organization method with natural gas high-low pressure mixed injection and pre-combustion chamber | |
| CN109209656B (en) | Combustion organization method for natural gas engine | |
| CN109209655B (en) | Dual-fuel engine combustion system and combustion method | |
| CN110318891B (en) | Multi-mode combustion organization method for natural gas/diesel dual-fuel engine | |
| CN102278216A (en) | Multimode multi-fuel combustion system | |
| Li et al. | Gasoline-diesel dual fuel intelligent charge compression ignition (ICCI) combustion: Conceptual model and comparison with other advanced combustion modes | |
| US20140299105A1 (en) | Methods for Low Temperature Combustion and Engines Using the Same | |
| CN109026412B (en) | Lean combustion organizing method for dual-fuel engine | |
| CN110318892B (en) | Ethanol fumigation/diesel dual-fuel engine multi-mode combustion organization method | |
| CN109386396B (en) | Combustion control method for natural gas engine | |
| CN214944586U (en) | Dual-fuel intelligent combustion system | |
| CN109296469B (en) | Reaction activity control-based dual-fuel engine combustion control method | |
| US11834984B2 (en) | Dual-fuel intelligent combustion system and control method thereof | |
| CN114396342B (en) | Control method capable of realizing transient switching of multiple combustion modes of engine | |
| Yu et al. | n-Butanol reactivity modulation with early fuel injections for low NOx compression ignition combustion | |
| CN114165329A (en) | Combustion chamber assembly, method of organizing combustion, computer readable medium, internal combustion engine | |
| CN116122973A (en) | Diesel oil and ammonia dual-fuel engine and mixed gas activity reform and high-efficiency combustion method | |
| CN110821661B (en) | Dual-fuel compression-ignition four-stroke engine based on reformed gas and combustion control method | |
| CN111219269A (en) | Partial premixing combustion system based on liquid hydrogen fuel piston engine and engine | |
| CN110145405A (en) | The double injected petrol lean-combustion engines of perforated plate type atomizer | |
| CN111305968B (en) | Fuel injection method and device for multi-fuel charge compression combustion engine | |
| CN112196676A (en) | Micro-injection ignition dual-fuel engine main diesel and natural gas coupled multi-injection combustion system | |
| CN111336006A (en) | Multi-fuel intelligent charge compression combustion engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |