CN117616915B - Marine engine capable of using gasoline, kerosene and alcohol multi-fuel oil - Google Patents
Marine engine capable of using gasoline, kerosene and alcohol multi-fuel oil Download PDFInfo
- Publication number
- CN117616915B CN117616915B CN201318000494.XA CN201318000494A CN117616915B CN 117616915 B CN117616915 B CN 117616915B CN 201318000494 A CN201318000494 A CN 201318000494A CN 117616915 B CN117616915 B CN 117616915B
- Authority
- CN
- China
- Prior art keywords
- oil
- gasoline
- kerosene
- engine
- alcohol
- 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.)
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Links
- 239000003502 gasoline Substances 0.000 title claims abstract description 26
- 239000003350 kerosene Substances 0.000 title claims abstract description 22
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 239000000295 fuel oil Substances 0.000 title claims abstract description 8
- 239000003921 oil Substances 0.000 claims abstract description 55
- 238000002347 injection Methods 0.000 claims abstract description 35
- 239000007924 injection Substances 0.000 claims abstract description 35
- 239000000446 fuel Substances 0.000 claims description 27
- 239000010705 motor oil Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 description 6
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
-
- 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
- Fuel-Injection Apparatus (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
The invention relates to a marine engine capable of using multiple fuel oils of gasoline, kerosene and alcohol, which comprises an oil sprayer arranged on a cylinder cover, wherein an oil sprayer nozzle of the oil sprayer is opposite to the top of a piston, and the oil inlet pressure of the oil sprayer is 165-192 KPa and the injection pressure of the oil sprayer is 8-10 MPa. When the engine uses gasoline, the injector injects with an injection advance angle of 10-20 DEG, the injection time pulse is 8-10 ms, the pulse interval is 12-15 ms, and the single injection pressure is 9.2-9.5 Mpa; when the engine uses kerosene and alcohol, the injector injects with the injection advance angle of 10-20 degrees, the injection time pulse is 5-7 ms, the pulse interval is 12-15 m, s, the single injection pressure is 9.8-10 MPa. The invention can be applied to military ships and boats, and ensures that the military tasks are completed smoothly.
Description
Technical Field
The invention relates to a marine engine capable of using gasoline, kerosene and alcohol to generate multiple fuels, in particular to a marine engine which is improved aiming at a two-stroke direct injection engine and is suitable for being applied to military ships and boats.
Background
The two-stroke outboard engine adopted at present is carburetor air intake, and gasoline and engine oil are mixed in a certain proportion and then are mixed with air in a certain proportion through the carburetor to be burnt in a combustion chamber. Such engines burn incompletely and have poor emissions. High oil consumption and low power. Such engines can only use 50:1 (gasoline mixed with engine oil) mixed fuel. The change of the using area is frequent when in war, if the fuel oil supply is abnormal or no gasoline is available on the ship, the common two-stroke outboard engine is used, and the common two-stroke outboard engine cannot be replaced by kerosene, alcohol and the like, so that serious consequences can be caused. It is therefore highly desirable to provide a marine engine that can use gasoline, kerosene, and alcohol multi-fuel.
Disclosure of Invention
The invention aims to solve the technical problem of providing a marine engine which can be applied to military ships and boats and can use gasoline, kerosene and alcohol multi-fuel.
In order to solve the technical problems, the marine engine capable of using gasoline, kerosene and alcohol multi-fuel oil comprises: the engine comprises a cylinder body, a crankshaft connecting rod assembly positioned in the cylinder body, a piston positioned in the cylinder body and connected with the crankshaft connecting rod assembly, a crankcase arranged at one end of the cylinder body adjacent to the crankshaft connecting rod assembly, and a cylinder head arranged at one end of the cylinder body adjacent to the piston; the oil injector is arranged on the cylinder cover, the oil nozzle of the oil injector is opposite to the top of the piston, the oil inlet pressure of the oil injector is 165-192 KPa, and the injection pressure is 8-10 MPa.
The engine oil pump is connected with an oil nozzle on the cylinder body, which is opposite to the piston skirt part in the cylinder body, through an oil pipe; the oil pump is connected with an oil nozzle on the crankcase through another oil pipe.
The oil pump has the use voltage of DC55V, the power of 2W and the flow of 20ml/min.
When the engine uses gasoline, the injector injects with an injection advance angle of 10-20 DEG, the injection time pulse is 8-10 ms, the pulse interval is 12-15 ms, and the single injection pressure is 9.2-9.5 Mpa;
when the engine uses kerosene and alcohol, the injector injects with the injection advance angle of 10-20 degrees, the injection time pulse is 5-7 ms, the pulse interval is 12-15 ms, and the single injection pressure is 9.8-10 MPa.
The fuel injector is controlled by an engine management module.
The invention adopts the direct injection technology in the cylinder to control the reasonable oil injection advance angle and the oil injection quantity of the oil injector according to different working conditions, so that the fuel of the engine is combusted with the optimal air-fuel ratio, and the complete combustion of the fuel is achieved. Thereby improving the utilization rate of fuel. The fuel utilization rate of the general engine is 30%, and the fuel utilization rate can reach 70% by adopting the technology. The engine oil of a common two-stroke engine is used in a ratio of 50:1, most of the engine oil cannot be completely combusted and is discharged out of the cylinder body, and serious pollution is caused to the environment. By adopting the direct injection technology in the cylinder, the using amount of engine oil can be reduced by 80 percent, and only a very small amount of engine oil participates in combustion, so that the waste gas generated by the incomplete combustion of a large amount of engine oil is reduced. Because the fuel is burnt with the optimal parameters, the combustion is complete, so that the emission of nitrogen oxides, CO and the like is greatly reduced by 25 percent compared with the same power machine type.
The two-stroke engine using direct injection in the cylinder of gasoline is tested by using kerosene and alcohol fuel, the engine runs normally, and when different fuels are used for switching, the engine works stably. Compared with gasoline, the engine output power of the engine using kerosene and alcohol fuel is 1% different.
Because the ship has no gasoline and only kerosene, the invention can realize the matched light ship, and carry out the tasks of river crossing, scout and search, mine removal, patrol and lifesaving, communication operation and the like. When the boat is used for rescue and relief work, the carried gasoline is limited, so that the shortage of gasoline supply can be caused, the outboard engines equipped with other common engines cannot be normally used, and the invention uses kerosene and alcohol as fuels to replace gasoline at the moment, so that the smooth completion of the task can be ensured.
Drawings
FIG. 1 is a schematic diagram of a marine engine capable of using multiple fuels of gasoline, kerosene and alcohol.
In the figure: 1 is an oil sprayer, 2 is a cylinder cover, 3 is a cylinder body, 4 is an oil pump, 5 is a crankcase, 6 is a crankshaft connecting rod assembly, and 7 is a piston.
Detailed Description
The invention will now be described in further detail with reference to the drawings and examples.
The invention comprises an oil sprayer 1, a cylinder cover 2, a cylinder body 3, an oil pump 4, a crankcase 5, a crankshaft connecting rod assembly 6 and a piston 7. The piston 7 is assembled on the crankshaft connecting rod assembly 6 through a piston pin, and then is inserted into the cylinder block 3, the crankcase 5 is closed, and the crankcase 5 is fastened by bolts. The cylinder head 2 is mounted on the cylinder block 3 by bolts, the fuel injector 1 is locked on the cylinder head 2 by bolts, and the fuel injector 1 is opposite to the top of the piston 7. The oil injector 1 uses oil inlet pressure 165-192 KPa and injection pressure 8-10 MPa. The oil pump 4 is installed in the oil tank and is connected with an oil nozzle on the cylinder body 3 through an oil pipe, the oil nozzle is opposite to a piston skirt part in the cylinder body 3, and the sprayed oil lubricates the piston 7. The oil pump 4 is connected with an oil nozzle on the crankcase 5 through another oil pipe to lubricate the crankshaft connecting rod assembly 6 rotating at high speed. The oil pump 4 has a voltage of DC55V, a power of 2W and a flow of 20ml/min.
After the engine is started, the piston 7 descends, air in the crankcase 5 is compressed and enters the cylinder block 3, the oil pump 4 supplies oil to the cylinder block 3 and the crankcase 5 according to signals provided by EMM (engine management module), and a sufficient amount of oil is provided for lubricating each kinematic pair. When the piston 7 moves up to a certain position, EMM gives a signal to the fuel injector according to the information of the rotation speed, the air inlet pressure, the engine temperature and the like of the engine, so that the fuel injector 1 carries out gasoline injection at an injection advance angle of 10-20 degrees, the injection time pulse is 8-10 ms, the pulse interval is 12-15 ms, and the single injection pressure is 9.2-9.5 MPa.
When the engine uses kerosene and alcohol fuel, a change-over switch is used, and a control system automatically executes a program of the corresponding fuel, and at the moment, the oil injection parameters of the oil injector 1 are as follows: the injection time pulse is 5-7 ms, the pulse interval is 12-15 ms, and the single injection pressure is 9.8-10 MPa.
The fuel oil and air sprayed into the combustion chamber are completely mixed, the mixed gas is ignited by spark plug spark, and the high-temperature and high-pressure fuel gas does work on the piston.
Claims (5)
1. A marine engine capable of using gasoline, kerosene and alcohol multi-fuel oil, comprising: the engine comprises a cylinder block, a crankshaft connecting rod assembly positioned in the cylinder block, a piston positioned in the cylinder block and connected with the crankshaft connecting rod assembly, a crankcase arranged at one end of the cylinder block adjacent to the crankshaft connecting rod assembly, and a cylinder head arranged at one end of the cylinder block adjacent to the piston; the method is characterized in that: the oil injector is arranged on the cylinder cover, an oil nozzle of the oil injector faces to the top of the piston, and the oil inlet pressure of the oil injector is 165-192 KPa, and the injection pressure of the oil injector is 8-10 MPa.
2. A marine engine operable with multiple fuels of gasoline, kerosene, and alcohol according to claim 1, wherein: the engine oil pump is connected with an oil nozzle of an oil sprayer on the cylinder body, which is opposite to a piston skirt part in the cylinder body, through an oil pipe; and the oil pump is connected with an oil nozzle on the crankcase through another oil pipe.
3. A marine engine operable with gasoline, kerosene, and alcohol multi-fuel according to claim 2, wherein: the oil pump has the use voltage of DC55V, the power of 2W and the flow of 20ml/min.
4. A marine engine operable with multiple fuels of gasoline, kerosene, and alcohol according to claim 1, wherein: when the engine uses gasoline, the injector injects with an injection advance angle of 10-20 DEG, the injection time pulse is 8-10 ms, the pulse interval is 12-15 ms, and the single injection pressure is 9.2-9.5 Mpa;
when the engine uses kerosene and alcohol, the injector injects with the injection advance angle of 10-20 degrees, the injection time pulse is 5-7 ms, the pulse interval is 12-15 ms, and the single injection pressure is 9.8-10 MPa.
5. The marine engine capable of using multiple fuel oils of gasoline, kerosene and alcohol according to claim 4, wherein: the fuel injector is controlled by an engine management module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201318000494.XA CN117616915B (en) | 2013-01-31 | 2013-01-31 | Marine engine capable of using gasoline, kerosene and alcohol multi-fuel oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201318000494.XA CN117616915B (en) | 2013-01-31 | 2013-01-31 | Marine engine capable of using gasoline, kerosene and alcohol multi-fuel oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117616915B true CN117616915B (en) | 2015-12-23 |
Family
ID=89982977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201318000494.XA Active CN117616915B (en) | 2013-01-31 | 2013-01-31 | Marine engine capable of using gasoline, kerosene and alcohol multi-fuel oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117616915B (en) |
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2013
- 2013-01-31 CN CN201318000494.XA patent/CN117616915B/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR03 | Grant of secret patent right | ||
| GRSP | Grant of secret patent right | ||
| DC01 | Secret patent status has been lifted | ||
| DC01 | Secret patent status has been lifted |
Granted publication date: 20130131 |