CN113202637A - Liquid ammonia-diesel oil dual-fuel injection device - Google Patents
Liquid ammonia-diesel oil dual-fuel injection device Download PDFInfo
- Publication number
- CN113202637A CN113202637A CN202110581329.1A CN202110581329A CN113202637A CN 113202637 A CN113202637 A CN 113202637A CN 202110581329 A CN202110581329 A CN 202110581329A CN 113202637 A CN113202637 A CN 113202637A
- Authority
- CN
- China
- Prior art keywords
- liquid ammonia
- fuel
- common rail
- ammonia
- rail pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 53
- 238000002347 injection Methods 0.000 title claims abstract description 12
- 239000007924 injection Substances 0.000 title claims abstract description 12
- 239000007788 liquid Substances 0.000 title claims abstract description 10
- 239000002283 diesel fuel Substances 0.000 title claims description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 90
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 24
- 238000002485 combustion reaction Methods 0.000 claims abstract description 13
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 230000008676 import Effects 0.000 claims description 4
- 230000009977 dual effect Effects 0.000 claims 4
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 15
- 239000002828 fuel tank Substances 0.000 description 5
- 239000010720 hydraulic oil Substances 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000520 microinjection Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Images
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
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0663—Details on the fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02D19/0686—Injectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0663—Details on the fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02D19/0686—Injectors
- F02D19/0692—Arrangement of multiple injectors per combustion chamber
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/08—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels
-
- 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
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0047—Layout or arrangement of systems for feeding fuel
-
- 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
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0076—Details of the fuel feeding system related to the fuel tank
- F02M37/0088—Multiple separate fuel tanks or tanks being at least partially partitioned
-
- 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
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
- F02M55/025—Common rails
-
- 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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
- F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
-
- 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
Abstract
The invention aims to provide a liquid ammonia-diesel dual-fuel injection device which comprises a liquid ammonia storage tank, an oil tank, a liquid ammonia common rail pipe, a fuel common rail pipe, a liquid ammonia injector and an oil injector, wherein an outlet of the liquid ammonia storage tank is connected with an inlet of the liquid ammonia common rail pipe, an outlet of the liquid ammonia common rail pipe is connected with the liquid ammonia injector through a high-pressure ammonia pipe, the liquid ammonia injector is connected with the liquid ammonia storage tank through an ammonia return pipe, the oil tank is connected with an inlet of the fuel common rail pipe through a filter and a high-pressure oil pump, an outlet of the fuel common rail pipe is connected with the oil injector, and the oil injector is connected with the oil tank through an oil return pipeline. The invention uses the low-pressure storage tank as a medium to realize the safe storage of the liquid ammonia. The fuel is a supply source of the ammonia fuel of the engine, so that the storage efficiency can be greatly improved; the proposed diesel pilot combustion mode improves the problems of difficult combustion and insufficient reaction of ammonia fuel.
Description
Technical Field
The invention relates to an injection device of an engine, in particular to an injection device of a dual-fuel engine.
Background
With the increasing environmental pollution and greenhouse effect, the reduction of carbon emission has become the core direction for some time in the future. In the development process of the low-carbon alternative fuel, the ammonia fuel has the advantages of high antiknock property, high energy storage, capability of realizing carbon-free combustion and the like, and has mature supply chain and lower cost. The ammonia fuel is considered as one of ideal green fuels for engines, but the problems of high ignition point, low heat value, low flame propagation speed and the like still exist in the application process, so that the problems of low volume efficiency, poor combustion effect and the like of an ammonia fuel engine exist, and the popularization and development of the ammonia engine are limited.
The ammonia fuel is combusted in a micro-injection ignition mode, so that the problems that the ammonia fuel is high in ignition point and difficult to ignite can be solved. Under the current demand, a combustion mode of diesel ignition is provided, the running compression ratio of an engine is improved, the flame propagation speed is accelerated, and the heat efficiency is improved. In addition, for the engine, diesel combustion-supporting brings new challenges to the structure of the engine, improves the complexity of an injection system, and also brings safety problems.
Disclosure of Invention
The invention aims to provide a liquid ammonia-diesel dual-fuel injection device which can solve the problems of difficult combustion, insufficient reaction and the like of ammonia fuel.
The purpose of the invention is realized as follows:
the invention relates to a liquid ammonia-diesel dual-fuel injection device, which is characterized in that: including the liquid ammonia holding vessel, the oil tank, the liquid ammonia common rail pipe, the fuel common rail pipe, the liquid ammonia sprayer, the exit linkage liquid ammonia common rail pipe import of liquid ammonia holding vessel, the export of liquid ammonia common rail pipe is through high-pressure ammonia union coupling liquid ammonia sprayer, the liquid ammonia sprayer is through returning ammonia union coupling liquid ammonia holding vessel, the oil tank passes through the filter, the import of high-pressure oil pump connection fuel common rail pipe, the exit linkage sprayer of fuel common rail pipe, the sprayer is through returning oil pipe way connection oil tank.
The present invention may further comprise:
1. and a flow limiter is arranged at the outlet of the liquid ammonia common rail pipe.
2. And a flow limiter is arranged at the outlet of the fuel common rail pipe.
3. The fuel injector and the liquid ammonia injector are connected in parallel, so that a combustion mode of diesel ignition is realized.
The invention has the advantages that:
1. the low-pressure storage tank is used as a medium to realize the safe storage of the liquid ammonia. The fuel is a supply source of the ammonia fuel of the engine, so that the storage efficiency can be greatly improved;
2. the invention discloses a dual-fuel supply system, and the diesel pilot combustion mode provided by the invention improves the problems of difficult combustion and insufficient reaction of ammonia fuel.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
The invention will now be described in more detail by way of example with reference to the accompanying drawings in which:
referring to fig. 1, fig. 1 is a schematic diagram of the overall structure of the present invention, the fuel supply system includes a fuel tank 7, a filter 6, a high-pressure oil pump and motor 4, a common fuel rail pipe 9, a flow limiter 10, high-pressure oil pipes 3 and 11, and an electrically controlled fuel injector 12, the right end of the common rail pipe 9 is respectively communicated with the high-pressure oil pump 4, the filter 6, and the fuel tank 7, the common rail pipe 9 is provided with a plurality of hydraulic oil outlets, and the outlets are connected with the flow limiter 10, so as to ensure timely closing under abnormal conditions and reduce loss. The number of the flow limiters 10 is determined according to the number of cylinders of the internal combustion engine, and the flow limiters 10 are communicated with the injector 12 through the high-pressure oil pipe 11.
The liquid ammonia storage tank 15 stores the fuel of the system, and a high-pressure low-temperature storage mode is adopted to ensure that the ammonia fuel is in a stable liquid state. Then, the ammonia is supplied to the ammonia inlet through the storage tank 15 and the control valve, and then the liquid ammonia common rail pipe 1 is introduced. Liquid ammonia in the liquid ammonia common rail pipe 1 is supplied to a liquid ammonia injector 8 through a high-pressure oil pipe 2, is controlled by an electromagnetic valve in the injector, and is then injected into the gas cylinder.
A fuel tank 7 stores diesel fuel as a pilot in the system, a high-pressure fuel pump 4 sucks fuel from the fuel tank 7, and a filter 6 is provided between the high-pressure fuel pump 4 and the fuel tank 7, and the fuel is filtered by the filter 6. Then the fuel is delivered to a common rail pipe 9, a plurality of hydraulic oil outlets 10 are opened on the common rail pipe 9, each hydraulic oil outlet 10 is communicated with an oil injector 12 through a high-pressure oil pipe 11, and is controlled by an electromagnetic valve in the oil injector to be injected into the air cylinder. Diesel and liquid ammonia are injected into the cylinder by injector 12 and injector 8 respectively. During the operation of the system, the excessive diesel oil returns to the oil tank 7 through the oil return pipeline 5. And the redundant liquid ammonia is returned to the ammonia storage tank through an ammonia return pipe and a control valve.
The diesel oil and liquid ammonia are respectively sprayed into cylinder by injector, and the mixed gas is fed into cylinder and mixed with fuel. When the upper dead point is reached, the fuel is combusted in a compression ignition mode, so that the valve rod is driven to do work.
As can be seen from the above description, the present invention uses a low pressure storage tank as a medium to realize the safe storage of liquid ammonia. The fuel is a supply source of the ammonia fuel of the engine, so that the storage efficiency can be greatly improved; the proposed diesel pilot combustion mode improves the problems of difficult combustion and insufficient reaction of ammonia fuel.
Claims (4)
1. Liquid ammonia-diesel oil dual fuel injection apparatus, characterized by: including the liquid ammonia holding vessel, the oil tank, the liquid ammonia common rail pipe, the fuel common rail pipe, the liquid ammonia sprayer, the exit linkage liquid ammonia common rail pipe import of liquid ammonia holding vessel, the export of liquid ammonia common rail pipe is through high-pressure ammonia union coupling liquid ammonia sprayer, the liquid ammonia sprayer is through returning ammonia union coupling liquid ammonia holding vessel, the oil tank passes through the filter, the import of high-pressure oil pump connection fuel common rail pipe, the exit linkage sprayer of fuel common rail pipe, the sprayer is through returning oil pipe way connection oil tank.
2. The liquid ammonia-diesel dual fuel injection device of claim 1, characterized in that: and a flow limiter is arranged at the outlet of the liquid ammonia common rail pipe.
3. The liquid ammonia-diesel dual fuel injection device of claim 1, characterized in that: and a flow limiter is arranged at the outlet of the fuel common rail pipe.
4. A liquid ammonia-diesel dual fuel injection device according to any of claims 1-3, characterized in that: the fuel injector and the liquid ammonia injector are connected in parallel, so that a combustion mode of diesel ignition is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110581329.1A CN113202637A (en) | 2021-05-27 | 2021-05-27 | Liquid ammonia-diesel oil dual-fuel injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110581329.1A CN113202637A (en) | 2021-05-27 | 2021-05-27 | Liquid ammonia-diesel oil dual-fuel injection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113202637A true CN113202637A (en) | 2021-08-03 |
Family
ID=77023373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110581329.1A Pending CN113202637A (en) | 2021-05-27 | 2021-05-27 | Liquid ammonia-diesel oil dual-fuel injection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113202637A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113931763A (en) * | 2021-09-30 | 2022-01-14 | 东风商用车有限公司 | High-pressure common rail pipe |
| CN113982788A (en) * | 2021-11-02 | 2022-01-28 | 厦门大学 | Ammonia liquid supply system of ammonia-mixed diesel engine |
| CN114151252A (en) * | 2021-11-19 | 2022-03-08 | 哈尔滨工程大学 | Liquid ammonia phase change cooling type hybrid power heat management system |
| CN115419535A (en) * | 2022-09-01 | 2022-12-02 | 哈尔滨工程大学 | Electric control diesel-ammonia dual fuel injector |
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| US5379740A (en) * | 1990-11-20 | 1995-01-10 | Biocom Pty, Ltd. | Dual fuel injection system and a method of controlling such a system |
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| CN205101128U (en) * | 2015-11-19 | 2016-03-23 | 山东大学 | Little diesel oil of engine natural gas equivalent air -fuel ratio burner that ignites |
| CN107366597A (en) * | 2017-09-15 | 2017-11-21 | 河南柴油机重工有限责任公司 | A kind of layout pattern of electronic control system in marine high-speed high-power diesel engine |
| WO2020252518A1 (en) * | 2019-06-19 | 2020-12-24 | Commonwealth Scientific And Industrial Research Organisation | Method of injecting ammonia fuel into a reciprocating engine |
| CN112628030A (en) * | 2020-12-11 | 2021-04-09 | 哈尔滨工程大学 | Ammonia fuel supply system for marine diesel engine |
| CN112696289A (en) * | 2020-12-28 | 2021-04-23 | 大连船舶重工集团有限公司 | Marine liquid ammonia fuel supply and fuel recycle system |
-
2021
- 2021-05-27 CN CN202110581329.1A patent/CN113202637A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US5379740A (en) * | 1990-11-20 | 1995-01-10 | Biocom Pty, Ltd. | Dual fuel injection system and a method of controlling such a system |
| CN101946083A (en) * | 2007-12-20 | 2011-01-12 | 伊科米特股份公司 | System for supply of lpg, methane, ammonia, and gas in general for petrol or diesel engines with electronic pressure regulator for continuous variation of the pressure of the fuel supplied to the injectors |
| CN101981297A (en) * | 2008-02-06 | 2011-02-23 | 伊科米特股份公司 | System for supply of LPG/ammonia for direct-injection petrol or diesel engines |
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| US20120004831A1 (en) * | 2009-03-25 | 2012-01-05 | Toyota Jidosha Kabushiki Kaisha | Controller for internal combusion engine |
| CN102859152A (en) * | 2010-04-20 | 2013-01-02 | 西港能源有限公司 | Method of controlling a direct-injection gaseous-fuelled internal combustion engine system with a selective catalytic reduction converter |
| CN202250509U (en) * | 2011-08-31 | 2012-05-30 | 湖南奔腾动力科技有限公司 | High pressure common-rail fuel system of diesel engine |
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| CN205101128U (en) * | 2015-11-19 | 2016-03-23 | 山东大学 | Little diesel oil of engine natural gas equivalent air -fuel ratio burner that ignites |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113931763A (en) * | 2021-09-30 | 2022-01-14 | 东风商用车有限公司 | High-pressure common rail pipe |
| CN113982788A (en) * | 2021-11-02 | 2022-01-28 | 厦门大学 | Ammonia liquid supply system of ammonia-mixed diesel engine |
| CN114151252A (en) * | 2021-11-19 | 2022-03-08 | 哈尔滨工程大学 | Liquid ammonia phase change cooling type hybrid power heat management system |
| CN114151252B (en) * | 2021-11-19 | 2023-07-21 | 哈尔滨工程大学 | Liquid ammonia phase change cooling type hybrid power thermal management system |
| CN115419535A (en) * | 2022-09-01 | 2022-12-02 | 哈尔滨工程大学 | Electric control diesel-ammonia dual fuel injector |
| CN115419535B (en) * | 2022-09-01 | 2024-02-06 | 哈尔滨工程大学 | Electric control diesel-ammonia dual-fuel injector |
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Application publication date: 20210803 |
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