CN109072788A - The multiple fuel system of internal combustion engine - Google Patents
The multiple fuel system of internal combustion engine Download PDFInfo
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- CN109072788A CN109072788A CN201680084902.5A CN201680084902A CN109072788A CN 109072788 A CN109072788 A CN 109072788A CN 201680084902 A CN201680084902 A CN 201680084902A CN 109072788 A CN109072788 A CN 109072788A
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- 239000000446 fuel Substances 0.000 title claims abstract description 163
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 62
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 153
- 239000002283 diesel fuel Substances 0.000 claims abstract description 75
- 239000003345 natural gas Substances 0.000 claims abstract description 74
- 238000002156 mixing Methods 0.000 claims abstract description 45
- 238000007664 blowing Methods 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims description 35
- 239000000203 mixture Substances 0.000 claims description 33
- 239000000463 material Substances 0.000 claims description 15
- 230000015572 biosynthetic process Effects 0.000 claims description 11
- 239000007924 injection Substances 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 10
- 239000012530 fluid Substances 0.000 claims description 9
- 230000004044 response Effects 0.000 claims description 7
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- 230000005540 biological transmission Effects 0.000 claims description 6
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 5
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- 230000001133 acceleration Effects 0.000 claims description 4
- 239000002737 fuel gas Substances 0.000 claims description 3
- 230000008450 motivation Effects 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 claims 3
- 239000007789 gas Substances 0.000 abstract description 73
- 239000010721 machine oil Substances 0.000 description 22
- 239000003344 environmental pollutant Substances 0.000 description 15
- 231100000719 pollutant Toxicity 0.000 description 15
- 229910052751 metal Inorganic materials 0.000 description 14
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- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical class [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 5
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- 229910001369 Brass Inorganic materials 0.000 description 1
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
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- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- 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
- F02D19/081—Adjusting the fuel composition or mixing ratio; Transitioning from one fuel to the other
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/0011—Breather valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
-
- 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
- F02D19/0626—Measuring or estimating parameters related to the fuel supply system
- F02D19/0628—Determining the fuel pressure, temperature or flow, the fuel tank fill level or a valve position
-
- 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
- F02D19/0639—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 characterised by the type of fuels
- F02D19/0642—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 characterised by the type of fuels at least one fuel being gaseous, the other fuels being gaseous or liquid at standard conditions
- F02D19/0647—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 characterised by the type of fuels at least one fuel being gaseous, the other fuels being gaseous or liquid at standard conditions the gaseous fuel being liquefied petroleum gas [LPG], liquefied natural gas [LNG], compressed natural gas [CNG] or dimethyl ether [DME]
-
- 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
- F02D19/0694—Injectors operating with a plurality of fuels
-
- 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
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D41/0027—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures the fuel being gaseous
-
- 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
- F02M25/06—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding lubricant vapours
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/0011—Breather valves
- F01M2013/0022—Breather valves electromagnetic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
- F01M2013/0433—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil with a deflection device, e.g. screen
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
- F01M2013/0461—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil with a labyrinth
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2250/00—Engine control related to specific problems or objectives
- F02D2250/08—Engine blow-by from crankcase chamber
-
- 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)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Lubricants (AREA)
Abstract
In the multiple fuel system of diesel engine, in the mixing chamber for being injected into engine before, natural gas and diesel fuel are mixed and are adjusted in mixing chamber.It is filtered to blow gas leakage and be introduced into combustion chamber.Ratio of the computerized controller to determine and control diesel fuel, gas fuel, the mixing and adjusting of those fuel and the filtered supply for blowing gas leakage.
Description
Technical field
The present invention relates generally to the fuel system of internal combustion engine.In particular, the present invention relates to use two kinds of bavin oil and gas combustions
The multiple fuel system of the internal combustion engine of material.
Background technique
It is estimated, there are 300,000,000 vehicles on the road in the U.S. at present.Daily, general American people spends drive for nearly 1 hour.
In addition, 70 about percent in the cargo of U.S. transportation is transported by commerial vehicle.Obviously, automobile is in U.S.'s daily life
Indispensable a part.It is same to most countries in the world.The world forms to these vapour of driving the dependence of automobile
The similar dependence of the fuels sources of vehicle.Nowadays most of vehicles of road use gasoline or diesel fuel.Most of commercial vehicle makes
Use diesel fuel.
A large amount of problems are brought to the dependence of fossil fuel.Diesel fuel price fluctuates daily, but fuel price on have it is bright
True ascendant trend.There is no any sign to show that these fuel prices will in a foreseeable future decline.Using gasoline as fuel
And diesel oil is that air pollution problems inherent intrinsic in the operation of the internal combustion engine of fuel is well-known.These air pollutants packet
Include carbon monoxide, nitrogen dioxide, particulate matter, ozone, sulfur dioxide and lead.All these pollutants are all the various strong of the mankind
Kang Wenti and the known root of ozone-depleting and acid rain in environment.Many people speculate that air pollution is just causing the whole world gradually
It ground and irreversibly warms.
For those reasons, currently with various emission control systems, and according to federal regulations, these emission control systems
May be it is necessary, to reduce the amount of pollutant that internal combustion engine discharges in an atmosphere.The response of these emission control systems is protected by environment
Shield office (Environmental Protection Agency；EPA) the various air quality standards formulated, including clean air
Method.Also there are the legislations of environmental protection and implementation method of their own in each state.Add state Air Resources Board (California ' s Air
Resources Board；It CARB) is the most stringent of pollution regulatory agency in the whole nation.The discharge standard formulated by CARB is than federal EPA
It is required that it is stringent, especially with respect to the hydrocarbon and discharged nitrous oxides for becoming smog.Currently, 16 other states used or
Using the strict emission standards of California.
But, emission control system only removes the part of pollutant, and is easy deterioration as time goes by.In addition, they
Usually engine is prevented to operate with peak efficiencies.Such emission control system is also limited to it to a certain extent and removes pollutant
Ability, and it is significant increase automobile cost.
The discharge or burning for blowing gas leakage also increase discharge.In the engine using diesel oil as power, oil lubricating song is used
Axis and the connecting-rod bearing.Crankcase is mainly filled by air and machine oil.Inlet manifold from independent source receive and fuel combination and
Air.Fuel/air mixture mixture in inlet manifold is inhaled into combustion chamber, in a combustion chamber, the fuel/air mixture mixture by
Spark ignitor, or because piston shaft movement caused by compression in combustion chamber cause.Although surrounding piston in bucket cylinder
Outer diameter setting piston ring be intended to will inject combustion chamber in unburned and spent fuel and air and crankcase seals
Isolation, but bucket cylinder can not be fully sealed in those piston rings.Therefore, exhaust gas enters crankcase, which commonly known as " blows
Gas leakage ".
Gas leakage is blown mainly to be made of pollutant such as hydrocarbon (unburned fuel), carbon dioxide and/or vapor,
All these pollutants are all to engine crankcase nocuousness.To blow gas leakage limitation can make in the crankcase pollutant condense and with
Time passage accumulates in engine crankcase.Pollutant after condensation forms caustic acid and greasy filth in the inside of crankcase.
This reduces the ability of engine motor oil lubrication of cylinders and crankshaft in crankcase.The deterioration machine oil of crankshaft group can not normally be lubricated
It is likely to become the abrasion increased in engine and a factor for reducing engine performance.
Industry, which has developed crankcase ventilation system, will blow gas leakage discharge positive crankcase ventilation (PCV) (positive
crankcase ventilation；PCV) valve and enter inlet manifold to burn again.But, it is removed from crankcase such
Blow gas leakage usually and include the lubricating oil and the like of high level, the lubricating oil and the like be introduced into inlet manifold and because
This enters in combustion chamber, to increase the vehicle produced pollution.
These problems are especially serious in diesel engine, because of diesel engine combusts heavier diesel oil more oily than gasoline
Fuel.Therefore, than gasoline to blow gas leakage more oily heavier for the gas leakage of blowing generated by the crankcase of diesel engine.Certainly, such diesel oil
The burning for blowing gas leakage causes bigger pollution to be worried.
Recently, U.S. domestic has found a large amount of gas source.Sometimes, fuel of the natural gas used also as internal combustion engine.
In the case where not complicated emission control system, natural gas can generate less burning pollutant and reduce engine behaviour
Make cost.It is expected that the use of natural gas will reduce the rate of world's Fossil fuel consumption.
Since current transport infrastructure does not include the natural gas retail supplier largely dispersed for vehicle,
Due to scope limitation, the vehicle that gaseous fuel such as natural gas is used only in production is unpractical.On the contrary, being equipped with liquid for vehicle
The supply of fuel such as diesel fuel and the auxiliary supply of gaseous fuel such as natural gas are more realistic.
Accordingly, it has been required to a kind of system, can not only burn diesel fuel, and can burn and be combined with natural gas
Diesel fuel, to reduce the discharge of diesel engine.Also need such system to existing fuel air system and configuration
Make to do so in the case where as few as possible transformation, to reduce the complexity of system and cost and also make existing diesel engine
Machine is transformed.In addition, it is necessary to which such system filtered fuel engine crankcase blows gas leakage, to keep clean in crankcase
And filtered lubricating oil, while reducing the environment for blowing gas leakage being introduced into combustion chamber and influence.The present invention realizes this
A little demands simultaneously provide other associated advantages.
Summary of the invention
The present invention relates to multifuel engine systems.The multifuel engine system, which starts from having, passes through first supply pipe
The diesel engine for the diesel fuel tanks that road is connect with combustion chamber fluid.The diesel engine may include fuel injector rail and prolong
Extend to the fuel injector in the combustion chamber, in this case, the first supply pipe road via the fuel injector rail and
Fuel injector is connect with the combustion chamber fluid.The fuel injector responds microcontroller as described below.
Preferably, the engine has multiple combustion chambers corresponding with any number of multiple pistons in the engine.
With multiple pistons and in the case where combustion chamber, which may also comprise from the fuel injector rail and extends to each burning
Multiple fuel injectors in room.
The system also has the natural gas tank connecting by second supply pipe road with the combustion chamber fluid, there are the fuel
In the case where injector guide rail and fuel injector, which can also penetrate through the fuel injector rail and fuel spray
Emitter.Preferably, the natural gas tank is made of puncture resistant material or carbon fiber.Preferably, the natural gas tank and second supply
Pipeline is pressurized.
The system also has the mixing chamber being arranged in series with first and second supply line, wherein mixing chamber mixing
Diesel fuel from the diesel fuel tanks and the natural gas from the natural gas tank, to form multi fuel mixing before the combustion chamber
Object.Microcontroller and monitor the diesel engine operating characteristic especially engine temperature, battery charging, engine speed,
The sensor of acceleration, discharge characteristics or Pcv valve door position couples.
The mixing chamber responds the microcontroller with the formation of the selective control multi fuel mixture.Preferably, the mixing
Room handles the multi fuel mixture by expanding, inflating, pressurizeing, being heated or cooled to, and performed processing response comes from should
The signal of microcontroller.In addition, signal of the response from the microcontroller, the mixing chamber is preferably in the ratio from pure diesel oil to 1:1
The diesel fuel and the natural gas are mixed in the range of example.
Preferably, the diesel fuel tanks include the diesel oil liquid level sensor being wirelessly connected with the microcontroller.Preferably, this is natural
Gas tank also has the natural gas liquid level sensor being wirelessly connected with the microcontroller.The microcontroller is configured to respond to come from and be somebody's turn to do
The signal-selectivity of diesel oil liquid level sensor and the natural gas liquid level sensor adjusts the formation of the multi fuel mixture.Preferably
Ground, the microcontroller are configured to respond the increase torque of the engine, increase load or increase height and increase the mixing chamber
In diesel fuel.The increase torque of the engine increases load or increases highly through the biosensor analysis diesel engine
The operating characteristic of machine determines.
Preferably, the system includes blowing blow-by system, this blows blow-by system and includes and crankcase from the diesel engine
Extend to the Pcv valve door that the recirculation conduit of the mixing chamber is arranged in series.This blow blow-by system further include be located at the crankcase with
The oil strainer in the recirculation conduit between the Pcv valve door.
The system may also include wirelessly to be connected with the microcontroller, the diesel oil liquid level sensor and the natural gas liquid level sensor
The display device connect.The display device may be configured to display the liquid level of the diesel fuel in the diesel fuel tanks, in the natural gas tank
The liquid level of natural gas and diesel fuel and natural gas in the multi fuel mixture in the mixing chamber ratio.This is aobvious
Showing device can be smart phone or the monitor being installed on instrument board.The display device can be configured to receive user's input simultaneously
To the microcontroller transmission of control signals.The formation of the manually adjustable multi fuel mixture of the control signal.Touch can be passed through
Screen, button or voice recognition receive user input.
After reading following detailed description in conjunction with the attached drawing for illustrating the principle of the present invention, other feature of the invention and
Advantage will become clearer.
Detailed description of the invention
Attached drawing is used to illustrate the present invention.In the drawings:
Fig. 1 shows the schematic diagram of the vehicle with multiple fuel system of the invention；
Fig. 2 shows the schematic diagram of the engine comprising multiple fuel system of the invention；
Fig. 3 shows the fuel injector rail of multiple fuel system of the invention and the schematic diagram of fuel injector；
Fig. 4 shows the schematic diagram of multiple fuel system of the invention；
Fig. 5 shows the multi fuel of the invention with the microcontroller coupled with numerous sensors and Pcv valve door operation
The schematic diagram of system；
Fig. 6 shows the schematic diagram of the general utility functions of multiple fuel system of the invention；
Fig. 7 shows the main view for blowing gas leakage filter, to illustrate air inlet, exhaust and the arrangement of oil discharge outlet；
Fig. 8 shows the enlarged side view in region shown in the circle 8 of Fig. 7, to illustrate to blow the closing top of the cylinder of gas leakage filter
Portion；
Fig. 9 shows partial enlarged view made by the circle 9 from Fig. 7, to illustrate to blow the bottom of the cylinder of gas leakage filter；
Figure 10 shows the cross-sectional side elevational view for blowing gas leakage filter, to illustrate to have the mistake of multiple metal net layers of different size
Filter component；
Figure 11 shows the schematic diagram of an alternate embodiment of multiple fuel system of the invention.
Specific embodiment
As shown in attached drawing for illustration purposes, the present invention resides at the diesel oil and natural gas double-fuel of diesel engine
In system.One embodiment according to the present invention, diesel engine system are converted into using diesel fuel and gas fuel
Combination operating multifuel engine.In a preferred embodiment, which uses diesel oil as the first fuel
And natural gas is used as the second fuel to operate, it combines natural gas to reduce discharge with diesel oil.System of the invention can also
It is potential to be increased sharply engine efficiency, to allow users to keep the fuel cost of its automobile to start far below standard diesel oil
The fuel cost of machine.
According to the present invention, existing diesel engine can be transformed by making change as few as possible to standard diesel engine
Machine.For example, the additive that only needs of standard diesel engine be natural gas tank and fuel channel, to fuel combination mixing chamber,
Microcontroller, and in one embodiment, Pcv valve door and blows gas leakage filter.Although calibrated fuel injection can be used
Device, but these and it is nonessential, and for real engine be not necessarily to additional change.
Referring now to Fig. 1, bifuel system is usually indicated with appended drawing reference 10 here.Shown vehicle 12 has engine
14, fuel injector rail 24 and four fuel injectors 26.Generally speaking, fuel injection system has replaced old carburetor
System.Carburetor is based on suction and supplies fuel to engine, and fuel injection system supplies fuel by spraying by direct injection.Spray
The fuel quantity that mist enters in the combustion chamber of engine can correspond to the air capacity into engine, and fuel injection system is caused to make to start
Machine becomes more efficient.
In general, a type of fuel work is used only in fuel injection system.Bifuel system of the invention uses standard
Diesel oil and natural gas double-fuel carry out work.Bifuel system 10 can be adapted to existing vehicle or factory and install to new vehicle.
Vehicle 12 as shown in Figure 1 is given for example only and illustration purpose.Those skilled in the art will be appreciated that system 10 of the invention
It can be used for using in various vehicles and actually in conjunction with the diesel engine of a part of non-vehicle.
System 10 of the invention needs standard diesel oil case 16 and individually natural gas tank 18.Natural gas tank 18 can be by carbon fiber
Dimension or puncture resistant simultaneously can convey some other material of compression material and are made.In general, vehicle is engineered so that natural gas tank
18 are installed in the sufficiently large space of vehicle, the chassis of vehicle 12, or are suitble to the natural gas tank 18 of installing and will not influence vehicle
12 safety and any other position of function.
Referring now to Fig. 2, the partial cross and diagrammatic view of representative engine are shown.When pull-up admission cam shaft 42
When, air is received in combustion chamber 38 by inlet manifold 30.Vacuum needed for this forms sucking air.It is convex when pushing down air inlet
When wheel shaft 42, fuel injector 26 sprays fuel into combustion chamber 38.Fuel injector 26 serves as sprayer substantially, to generate combustion
The fine spray of material, so that the fine spray is easy to be preheated plug when piston 32 is by the lifting of crankshaft 36, compressed fuel to burning point
40 light.Thus burning caused by forces piston 32 to be downwardly into crankcase 34, the corresponding turning crankshaft 36 of crankcase 34.This
When, exhaust cam shaft 44 is stepped back, to form vacuum needed for combustion chamber 38 is discharged through exhaust manifold 46 in driving exhaust gas.
Self-expanding and mixing chamber 20 pass through fuel supply pipe 50 and supply fuel, expansion and mixing chamber to fuel injector 26
20 supply diesel fuel 52 by case 16 and/or supply natural gas 54 by case 18.In general, engine is used alone from supply
The diesel fuel of pipeline 52 operates, or is transported using the combination of the diesel fuel from pipeline 52 and the natural gas from pipeline 54
Turn.
Conduit or fuel supply pipe 28 by diesel oil and natural gas tank 16 and 18 with mix and expanding chamber 20 interconnects.It asks now
Referring to Fig. 3, show that the diesel fuel supply from case 16 has the supply line 52 for being connected to mixing and expanding chamber 20.Similarly,
Display natural gas supply case 18 has the supply line 54 for being connected to mixing and expanding chamber 20.In expansion and mixing chamber 20, to combustion
Material is appropriately mixed and using required inflation and adjusting.The ratio of each supply fuel can change according to engine parameter.
Fuel can be heated or cooled in mixing chamber 20.Then, the combustion for being mixed and being adjusted directly is conveyed to engine via pipeline 50
Material, such as fuel injector rail shown in figure 24 have the hole 56 for leading to fuel injector 26.Microcontroller or ECU
Input of (electronic control unit) 58 to control the fuel in the cylinder for entering engine by fuel injector 26.Electronics control
Unit (electronic control unit processed；ECU) 58 informing fuel injectors 26 when spray fuel and injection how much
Fuel.ECU 58 is usually the part of the computerized control system of vehicle.Present invention also contemplates that fuel combination is sent to air inlet discrimination
Pipe 30 mixes fuel combination to be introduced into cylinder and combustion chamber 38 with partial air in inlet manifold 30.
Referring now to Fig. 4, the schematic diagram of system of the invention is shown.The supply quilt of diesel fuel 16 and natural gas 18
It is sent into expansion and mixing chamber 20.Microcontroller 60 with sensor input is to determine in any given time diesel fuel
With the ratio of gas fuel.Such as it can also be by micro- to the adjusting of fuel combination by inflation, the modes such as pressurize, be heated or cooled
Controller 60 controls.Microcontroller 60 can be the microcontroller independently of ECU 58, but may also comprise ECU 58 or improve ECU
58。
Referring now to Fig. 5, there is controller 58 and/or 60 sensor to input to make these decisions.Sensor may include
Engine temperature sensing unit 62, battery sensor 64, Pcv valve door sensor 66, engine speed sensor 68, accelerometer pass
Sensor 70 and exhaust sensor 72.It can also be used often having in vehicle and provide other sensings of data and signal to ECU 58
Device.In fact, microcontroller 60 can be conveyed directly to the data of those sensors, or it is sent to ECU 58, then by ECU
58 provide the data to microcontroller 60.
As shown in Figure 11, an alternate embodiment of the system may include the radio characteristics for various assemblies.Each bavin
Oil fuel supply 16 and gas fuel supply 18 may include fuel level sensor 16a, 18a.In addition, each fuel supply 16,
18 may also comprise wireless antenna 16b, the 18b for being configured to transmit fuel level sensor 16a, 18a information obtained.Combustion
The monitor or the transmission of smart phone 116 that feed liquid level sensor 16a, 18a can be for example installed on instrument board to display device are somebody's turn to do
Information.The purpose of such radio configuration is to allow to install the system after sale, without being hardwired to engine or automobile
In OEM system.
Microcontroller 60 may also comprise antenna 60a, to allow to wirelessly communicate.Microcontroller 60 can be from sensor 16a, 18a
Wireless receiving fuel level information simultaneously uses the information, to be introduced into the bavin of mixing chamber 20 based on the control of the surplus of various fuel
The ratio of oil fuel and gas fuel.The monitor or smart phone 116 being installed on instrument board, which also can receive, passes through touch
Screen, button or similar input unit being manually entered, with to 60 transmission of control signals of microcontroller, to manually control mixing chamber
The ratio of diesel fuel and natural gas in 20.The monitor or smart phone 116 being installed on instrument board can also be equipped with application
Program is to provide graphical user interface, to allow to manually control fuel ratio.Same application can also be programmed to respond
Sound instruction controls the switching of fuel ratio, without physical operation.
Engine sensor 62 to 72 can also be used to detect engine condition, such as increased torque, increase in the system
Load or increased height.In such cases, microcontroller 60 can be by the proportion adjustment of diesel fuel and gas fuel
For more favorable mixture.Such engine condition will benefit from larger amount of diesel fuel in mixture.The system can be through matching
It sets to automatically switch to the fuel ratio of the sensing based on increased torque, increased load and/or increased height.
Referring once again to Fig. 3, those skilled in the art will be appreciated that the present invention considers to lead using unique fuel injector
Rail 24, the guide rail are designed to supply combined and mixed diesel oil and gas fuel to the combustion chamber of the cylinder of engine.
In this case, still consider to use single fuel injector 26 in each combustion chamber of each cylinder of engine, with
Supply the fuel supply being pre-mixed.Present invention also contemplates that using the existing fuel air and spraying system of engine, with
Engine is changed as few as possible, to reduce the complexity and expense of transformation vehicle or engine to greatest extent.
Referring to figure 4. and 5, in specific preferred embodiment, the Pcv valve door 74 controlled by microcontroller 60 adjusts spontaneous
The flow for blowing gas leakage that the sucking of motivation crankcase 34 and supply engine burn.This can for example pass through the number of Pcv valve door 74
Word control is reached adjusting the engine vacuum in combustion engine.Controller 58 and/or 60 is obtained from sensor 62 to 72
The data obtained can be used to adjust Pcv valve door 74 and oil strainer 76.
As shown in figure 4, filter 76 blows gas leakage to filter, so that filtered machine oil to be sent back to the crankshaft of engine 14
In case 34, at the same by Pcv valve door 74 provide it is filtered it is pure blow gas leakage to burn in engine 14, such as by that will filter
Gas leakage of blowing afterwards is introduced into expanding chamber 20 to combine with diesel oil and/or gas fuel.Figure 11 shows that Pcv valve door 74 includes day
Line 74a.By this antenna 74a, microcontroller 60 can wireless monitor Pcv valve door 74 state (ON/OFF).Microcontroller 60 can also
The state of situation wireless control Pcv valve door 74 based on the engine 14 sensed.
The oil strainer shown in the drawings 76 of this paper is usually additional on regular engine oil filter, in regular engine oil
In filter, machine oil itself removes pollutant through filtering.On the contrary, filter 76 blows gas leakage to filter out from what crankcase removed
In machine oil.If desired, the filter 76 being generally cylindrical, which can be sandwiched fixed or spiral shell, is set to position.Ready-made zero can be used
Component market separator or oil strainer or the filter of unique design illustrated and described herein 76.Although can remove machine oil
In impurity so that return crankcase machine oil through filtering and have more preferable effect and service life, but the present invention especially it is interested simultaneously
It concerns, boasts that gas leakage removes liquid machine oil so that machine oil or pollutant will not be introduced into combustion chamber, otherwise the row of will lead to
Put increase rather than discharge reduction.
Referring now to Fig. 6, shows the schematic views of engine 14 and blow gas leakage filter 76 in conjunction with Pcv valve door 74
Operation.As shown, blowing gas leakage filter 76 and the series connection of Pcv valve door 74 set on the crankcase 34 and engine 14 of engine 14
Inlet manifold 30 and fuel channel 50 between recirculation conduit 75 in.In diesel engine, inlet manifold 30 is via combustion
Pipe material 50 and air pipeline 78 receive the mixture of fuel and air.Fuel channel 50 provides fuel also to be injected directly into
In combustion chamber 38.In petrol engine, direct fuel injection does not enter in combustion chamber 38 fuel channel 50, on the contrary, cartridge
Road 50 is only connect with inlet manifold 30.Air filter 80 receive fresh air 82, when piston 32 from top dead-centre in cylinder 84
When decline, which is transferred into bucket cylinder and combustion chamber 38 by inlet manifold 30.When piston 32 is in cylinder 84
When interior decline, vacuum is formed in combustion chamber 38.Correspondingly, it is passed through with the input cam axis 42 that the speed synchronous with crankshaft 36 rotates
Design is to open input valve 88, so that inlet manifold 30 be made to be under engine vacuum.In this way, air is from 38 quilt of inlet manifold
It sucks in combustion chamber 38.
Once piston 32 is in the bottom of bucket cylinder, vacuum effect terminates and no longer sucks sky from inlet manifold 30
Gas is into combustion chamber 38.At this point, the beginning of piston 32 is moved back up along bucket cylinder 84, and the air in combustion chamber 38 is compressed.
In diesel engine, fuel is injected directly into combustion chamber 38 from fuel channel 50.This injection can also be by from compression
More compressed airs of air pipeline 90 assist.Compressed air pipe 90 is not present in petrol engine.When in combustion chamber 38
When air and fuel are compressed, it is heated until ignited fuel and burning occurs.
The rapid expanding for the fuel/air mixture being ignited in combustion chamber 38 moves down piston 36 in cylinder 84.It is firing
After burning, exhaust cam shaft 44 opens drain tap 92, to allow the burning gases of combustion chamber 38 that exhaust manifold 46 is discharged.
In general, extra exhaust gas is via a pair of pistons ring 94 in the top 96 for being set to piston 32 during burn cycle
It leaks out.These " blowing gas leakage " enter crankcase 34 as high temperature and high pressure gas.As time goes by, harmful exhaust such as hydrocarbonization
Close object, carbon monoxide, nitrous oxide and carbon dioxide can be condensed from gaseous state, the inside of covering crankcase 34 and with to lubricate
The machine oil 95 of parts in crankcase 34 mixes.As described above, Pcv valve door 74 be designed to recycling crankcase 34 these blow leakage
Gas, to be burnt again by engine 14.This using the pressure difference between crankcase 34 and inlet manifold 30 by being realized.This
Process can be digital regulated by microcontroller.
Pcv valve door 74 includes one way stop peturn valve (not shown), when the vacuum between inlet manifold 30 and crankcase 34 is enough
Qiang Shi, the one way stop peturn valve are opened to allow to blow gas leakage and pass through valve 74.As the check-valves is opened, gas leakage is blown across Pcv valve
Door 74, to be recycled by inlet manifold 30.The check-valves can also be controlled by microcontroller, to increase fuel efficiency.
Blowing gas leakage is not pure fuel vapo(u)r.On the contrary, when unlit fuel is drawn into crankcase 34 by piston ring 94
When, fuel vapo(u)r is mixed with the machine oil 95 of the parts in lubrication crankcase 34.As time goes by, harmful exhaust such as hydrocarbonization
Closing object, carbon monoxide, nitrous oxide and carbon dioxide can condense from gaseous state and mix with machine oil 95 and fuel vapo(u)r.Therefore,
Thus it includes poisonous impurities that gas leakage is blown caused by, makes it unsuitable for burning again within the engine.In diesel engine, diesel oil combustion
Material contains more oil than gasoline, therefore it is significant more oily to blow gas leakage.The gas leakage of blowing of oil and mud is not only not suitable for burning again, but also past
Toward clinging Pcv valve door 74, so that making to blow gas leakage may not be recycled.
Therefore, the present invention includes filter 76 to boast that impurity is removed in gas leakage before blowing gas leakage and entering Pcv valve door 74.It blows
Gas leakage filter 76 sends filtered engine motor oil 95 in crankcase 34 back to also by return conduit 77, for further making
With.In one embodiment, machine oil is sent back in crankcase using check-valves.This prevents untreated machine oil from entering filtering
The machine oil outlet of device 76.Whether to detect filter 76 too full, and purification system can be used to seek help from if sensor can be used
OEM (original equipment manufacturer).The warning system including alarm device, LED light etc. can be used to notify operator in relation to such
Situation.
It is displayed the details of in Fig. 7 to 10 and blows gas leakage filter 76.Fig. 7 shows the side view for blowing gas leakage filter 76.Blow gas leakage
Filter 76 includes cylinder 98, and cylinder 98 has closed top or lid 100 and bottom 102.Cylinder 98 can be by metal, modeling
Material is made suitable for any other material or compound used in the task in high temperature and pressure.The closure tip 100 of cylinder 98
Including blowing gas leakage air inlet 104 and fuel vapo(u)r outlet 106.It blows the reception of gas leakage air inlet 104 and blows gas leakage in cylinder 98
It is internal.Fuel vapo(u)r outlet 106 blows purified gas leakage and is discharged to Pcv valve door 74 from the inside of cylinder 98, such as institute in Fig. 6
Show.
As shown in Figure 7, the closure tip 100 of cylinder 98 can not usually be removed from cylinder 98.But, the bottom of cylinder 98
102 include the removable lid 108 with clip 110.It includes machine oil outlet 112 that lid 108, which can be removed, after it allows purification
Machine oil 95 drain back in the crankcase 34 of engine 14.Fig. 8 and 9 is the enlarged view of region " 8 " and " 9 " of Fig. 7, with explanation
The top 100 and lower part 102 of oil strainer cylinder 98.Fig. 9 is please referred to, machine oil outlet 112 can deviate removable lid 108
Center, to take the setting angle for blowing 76 relative vehicle 12 of gas leakage filter into account.Lid 108, which can be removed, to be allowed to conveniently enter circle
The inside of cylinder 98, thus the object that convenient for cleaning and replacement cylinder 98 includes.
Referring now to Figure 10, the cross-sectional side elevational view of gas leakage filter 76 is blown in display.Here filter assemblies are displayed the details of
114.Filter assemblies 114 include multiple metal net layers 86 of different size.After removing lid 108, pass through the open end of cylinder
These metal net layers 86 are fitted into cylinder 98.Metal net layer 86 can be made of the metal of same type, can also be by different type
Metal constitute.Workable metal species include but is not limited to steel, stainless steel, aluminium, copper, brass, bronze etc..
It is unfiltered to blow gas leakage and received by the gas leakage air inlet 104 that blows in the closure tip 100 of cylinder 98 when operation.
Gas leakage is blown to start the cycle over through the metal net layer 86 in cylinder 98.According to the specification of net and the type of metal, different pollutants
And impurity is retained in each metal net layer 86.Biggish pollutant is filtered by the metal mesh 86 of larger specification.Lesser pollution
Object and impurity are filtered by the metal mesh 86 of thinner specification.Equally, some impurity can be retained by certain types of metal.When blowing gas leakage
When by filter assemblies 114, pollutant and impurity are trapped, to leave two kinds of principal by product, that is, clean are started
Machine machine oil 95 and purified fuel vapo(u)r.Clean engine motor oil 95 is finally built up in the bottom of cylinder 98 102, at this
In, machine oil 95 is expelled back into the crankcase 34 of engine 14 via machine oil outlet 112.Purified fuel vapo(u)r passes through cylinder 98
Closure tip 100 in fuel vapo(u)r outlet 106 be discharged to Pcv valve door 74, to be recycled by inlet manifold 30 or
The diesel oil and/or gas fuel mixture being added to before the combustion chamber 38 for being introduced into engine 14 in expanding chamber.
When filter assemblies 114 need periodically to clean and safeguard, by pulling out clip 110 and being removed from the bottom of cylinder 98
Lid 108 is convenient to remove filter assemblies 114 from cylinder 98.Those skilled in the art, which will be appreciated that, blows gas leakage oil filtration
Device 76 may include seal washer etc. needed for forming sealing between cylinder 98 and removable lid 108, with prevent machine oil and its
Its pollutant leaks out.The present invention considers to may relate to start when replacing lubricant separator/filter element of filter assemblies 114.
Computerized controller 60 can be used to monitor the filter process and Pcv valve door 74 for blowing gas leakage, purified to control
Blow gas leakage whether and with which kind of degree by Pcv valve door 74 and enter fuel channel 50, expansion and mixing chamber 20 or directly into
Enter inlet manifold 30 or air pipeline 78.Under any circumstance, the gas leakage of blowing filtered all provides cleaner gas, produces
Raw less undesirable discharge.
Although multiple embodiments are described in detail for the purpose of illustration here, the present invention can be made it is various change without departing from
Scope and spirit of the present invention.Therefore, except as by the appended claims, the present invention is unrestricted.
Claims (29)
1. a kind of multifuel engine system, comprising:
Diesel engine has the diesel fuel tanks connecting by first supply pipe road with combustion chamber fluid；
Natural gas tank is connect by second supply pipe road with the combustion chamber fluid；
Mixing chamber is arranged in series with first and second supply line, wherein the mixing chamber mixes the diesel oil from the diesel fuel tanks
Fuel and the natural gas from the natural gas tank, to form multi fuel mixture before the combustion chamber；
Microcontroller couples, wherein the mixing chamber responds the micro-control with the sensor for the operating characteristic for monitoring the diesel engine
Device processed is with the formation of the selective control multi fuel mixture；
With the microcontroller be wirelessly connected be located at the diesel fuel tanks in diesel oil liquid level sensor and with the microcontroller it is wireless
The natural gas liquid level sensor of connection being located in the natural gas tank, wherein the microcontroller is configured to response from the bavin
The signal-selectivity of oil liquid level sensor and the natural gas liquid level sensor adjusts the formation of the multi fuel mixture；And
Blow-by system is blown, the recirculation conduit including extending to the mixing chamber with the crankcase from the diesel engine is arranged in series
Pcv valve door.
2. multifuel engine system as described in claim 1, wherein the microcontroller is configured to respond the engine
Increase torque, increase load or increase height and increase the diesel fuel in the mixing chamber.
3. multifuel engine system as claimed in claim 2, wherein the increase torque of the engine increases load or increases
Degree of increasing is determined by the operating characteristic of the biosensor analysis diesel engine.
4. multifuel engine system as described in claim 1, wherein signal of the response from the microcontroller, the mixing
Room mixes the diesel fuel and the natural gas in the range of from pure diesel oil to 1:1 ratio.
5. multifuel engine system as described in claim 1, wherein the natural gas case includes puncture resistant material or carbon fiber
Dimension.
6. multifuel engine system as described in claim 1, wherein the natural gas tank and the second supply pipe road are added
Pressure.
7. multifuel engine system as described in claim 1, wherein include hair by the operating characteristic that the sensor monitors
Motivation temperature, battery charging, engine speed, acceleration, discharge characteristics and/or Pcv valve door position.
8. multifuel engine system as described in claim 1, wherein the recirculation conduit for blowing blow-by system further includes
Oil strainer between the crankcase and the Pcv valve door.
9. further including being located on the diesel engine such as multifuel engine system described in any item of the claim 1 to 8
Fuel injector rail and the fuel injector that the combustion chamber is extended to from the fuel injector rail, wherein fuel spray
Emitter responds the microcontroller.
10. multifuel engine system as described in claim 1, further include with the microcontroller, diesel oil liquid level sensor and
The display device that natural gas liquid level sensor is wirelessly connected, wherein the display device is configured to show the bavin in the diesel fuel tanks
The liquid level of oil fuel, the liquid level of natural gas in the natural gas tank and the bavin in the multi fuel mixture in the mixing chamber
The ratio of oil fuel and natural gas.
11. multifuel engine system as claimed in claim 10, wherein the display device includes smart phone or is installed in
Monitor on instrument board.
12. multifuel engine system as claimed in claim 10, wherein the display device is configured to receive user's input
And to the microcontroller transmission of control signals, to manually adjust the formation of the multi fuel mixture.
13. multifuel engine system as claimed in claim 12, wherein the display device be configured to pass touch screen,
Button or voice recognition receive user's input.
14. a kind of multifuel engine system, comprising:
Diesel engine has the diesel fuel tanks connecting by first supply pipe road with combustion chamber fluid；
Natural gas tank is connect by second supply pipe road with the combustion chamber fluid；
Mixing chamber is arranged in series with first and second supply line, wherein the mixing chamber is from pure diesel oil to 1:1 ratio
Diesel fuel of the mixing from the diesel fuel tanks and the natural gas from the natural gas tank in range are more to be formed before the combustion chamber
Fuel mixture；
Blow-by system is blown, the recirculation conduit including extending to the mixing chamber with the crankcase from the diesel engine is arranged in series
Pcv valve door；
Microcontroller couples, wherein the mixing chamber responds the micro-control with the sensor for the operating characteristic for monitoring the diesel engine
Device processed is with the mixing of selective control diesel fuel and the natural gas, so that the multi fuel mixture is formed, and wherein, it should
Mixing chamber responds the microcontroller to handle the multi fuel mixture；
With the microcontroller be wirelessly connected be located at the diesel fuel tanks in diesel oil liquid level sensor and with the microcontroller it is wireless
The natural gas liquid level sensor of connection being located in the natural gas tank, wherein the microcontroller is configured to response from the bavin
The signal-selectivity of oil liquid level sensor and the natural gas liquid level sensor adjusts the formation of the multi fuel mixture；And
Display device is wirelessly connected with the microcontroller, diesel oil liquid level sensor and natural gas liquid level sensor, wherein this is aobvious
Showing device is configured to show the liquid level of the diesel fuel in the diesel fuel tanks, the liquid level of the natural gas in the natural gas tank, and
The ratio of the diesel fuel and natural gas in the multi fuel mixture in the mixing chamber.
15. multifuel engine system as claimed in claim 14, wherein the natural gas case includes puncture resistant material or carbon fiber
Dimension.
16. multifuel engine system as claimed in claim 14, wherein the natural gas tank and the second supply pipe road are added
Pressure.
17. multifuel engine system as claimed in claim 14, wherein include by the operating characteristic that the sensor monitors
Engine temperature, battery charging, engine speed, acceleration, discharge characteristics and/or Pcv valve door position.
18. multifuel engine system as claimed in claim 14, wherein the recirculation conduit for blowing blow-by system also wraps
Include the oil strainer between the crankcase and the Pcv valve door.
19. the multifuel engine system as described in any one of claim 14 to 18 further includes being located at the diesel engine
On fuel injector rail and the fuel injector of the combustion chamber is extended to from the fuel injector rail, wherein the combustion
Material ejector responds the microcontroller.
20. multifuel engine system as claimed in claim 14, wherein the display device includes smart phone or is installed in
Monitor on instrument board.
21. multifuel engine system as claimed in claim 14, wherein the display device is configured to receive user's input
And to the microcontroller transmission of control signals, to manually adjust the formation of the multi fuel mixture.
22. multifuel engine system as claimed in claim 21, wherein the display device be configured to pass touch screen,
Button or voice recognition receive user's input.
23. a kind of multifuel engine system, comprising:
Diesel engine extends to the fuel injection in combustion chamber with fuel injector rail, from the fuel injector rail
Device, and connect by the first supply pipe road via the fuel injector rail and fuel injector with the combustion chamber fluid
Diesel fuel tanks；
Natural gas tank is connect by second supply pipe road with the combustion chamber fluid；
Mixing chamber is arranged in series with first and second supply line, wherein the mixing chamber is from pure diesel oil to 1:1 ratio
Diesel fuel of the mixing from the diesel fuel tanks and the natural gas from the natural gas tank in range are more to be formed before the combustion chamber
Fuel mixture；
Microcontroller couples, wherein the mixing chamber responds the micro-control with the sensor for the operating characteristic for monitoring the diesel engine
Device processed responds the microcontroller with the formation and the fuel injector of the selective control multi fuel mixture with to the burning
Add the multi fuel mixture in room；
With the microcontroller be wirelessly connected be located at the diesel fuel tanks in diesel oil liquid level sensor and with the microcontroller it is wireless
The natural gas liquid level sensor of connection being located in the natural gas tank, wherein the microcontroller is configured to response from the bavin
The signal-selectivity of oil liquid level sensor and the natural gas liquid level sensor adjusts the formation of the multi fuel mixture；And
Blow-by system is blown, the recirculation conduit including extending to the mixing chamber with the crankcase from the diesel engine is arranged in series
Oil strainer and Pcv valve door.
24. multifuel engine system as claimed in claim 23, wherein the natural gas case includes puncture resistant material or carbon fiber
Dimension, and the natural gas tank and the second supply pipe road are pressurized.
25. multifuel engine system as claimed in claim 23, wherein include by the operating characteristic that the sensor monitors
Engine temperature, battery charging, engine speed, acceleration, discharge characteristics and/or Pcv valve door position.
26. multifuel engine system as claimed in claim 23, further include with the microcontroller, diesel oil liquid level sensor and
The display device that natural gas liquid level sensor is wirelessly connected, wherein the display device is configured to show the bavin in the diesel fuel tanks
The liquid level of oil fuel, the liquid level of natural gas in the natural gas tank and the bavin in the multi fuel mixture in the mixing chamber
The ratio of oil fuel and natural gas.
27. multifuel engine system as claimed in claim 26, wherein the display device includes smart phone or is installed in
Monitor on instrument board.
28. multifuel engine system as claimed in claim 26, wherein the display device is configured to receive user's input
And to the microcontroller transmission of control signals, to manually adjust the formation of the multi fuel mixture.
29. multifuel engine system as claimed in claim 28, wherein the display device be configured to pass touch screen,
Button or voice recognition receive user's input.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US15/052,203 US9784152B2 (en) | 2013-06-27 | 2016-02-24 | Multi-fuel system for internal combustion engines |
| US15/052,203 | 2016-02-24 | ||
| PCT/US2016/049373 WO2017146771A1 (en) | 2016-02-24 | 2016-08-30 | Multi-fuel system for internal combustion engines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109072788A true CN109072788A (en) | 2018-12-21 |
Family
ID=59686473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680084902.5A Pending CN109072788A (en) | 2016-02-24 | 2016-08-30 | The multiple fuel system of internal combustion engine |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP3420211A4 (en) |
| KR (1) | KR102019278B1 (en) |
| CN (1) | CN109072788A (en) |
| AU (1) | AU2016393847B2 (en) |
| CA (1) | CA3015613C (en) |
| EA (1) | EA201891835A1 (en) |
| MX (1) | MX369813B (en) |
| SG (1) | SG11201807135PA (en) |
| WO (1) | WO2017146771A1 (en) |
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|---|---|---|---|---|
| KR102094964B1 (en) * | 2019-10-07 | 2020-03-30 | 주식회사 코니테크놀로지 | Fuel controlling device for LNG-diesel dual fuel engine system |
| KR102094958B1 (en) * | 2019-11-20 | 2020-05-26 | 주식회사 코니테크놀로지 | Fuel supply apparatus for Diesel- liquidfuel dual fuel system |
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- 2016-08-30 KR KR1020187026898A patent/KR102019278B1/en active IP Right Grant
- 2016-08-30 SG SG11201807135PA patent/SG11201807135PA/en unknown
- 2016-08-30 EP EP16891870.4A patent/EP3420211A4/en not_active Withdrawn
- 2016-08-30 WO PCT/US2016/049373 patent/WO2017146771A1/en active Application Filing
- 2016-08-30 CN CN201680084902.5A patent/CN109072788A/en active Pending
- 2016-08-30 AU AU2016393847A patent/AU2016393847B2/en not_active Ceased
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| KR20180110146A (en) | 2018-10-08 |
| AU2016393847B2 (en) | 2019-05-09 |
| EA201891835A1 (en) | 2019-02-28 |
| SG11201807135PA (en) | 2018-09-27 |
| WO2017146771A1 (en) | 2017-08-31 |
| EP3420211A1 (en) | 2019-01-02 |
| AU2016393847A1 (en) | 2018-09-27 |
| EP3420211A4 (en) | 2019-10-16 |
| CA3015613A1 (en) | 2017-08-31 |
| CA3015613C (en) | 2019-11-19 |
| MX369813B (en) | 2019-11-22 |
| MX2018010216A (en) | 2019-02-20 |
| KR102019278B1 (en) | 2019-11-04 |
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