CN106351735B - A kind of high-efficiency low-emission hydrogen release fuel combination dynamical system - Google Patents
A kind of high-efficiency low-emission hydrogen release fuel combination dynamical system Download PDFInfo
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- CN106351735B CN106351735B CN201610727904.3A CN201610727904A CN106351735B CN 106351735 B CN106351735 B CN 106351735B CN 201610727904 A CN201610727904 A CN 201610727904A CN 106351735 B CN106351735 B CN 106351735B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B43/00—Engines characterised by operating on gaseous fuels; Plants including such engines
- F02B43/10—Engines or plants characterised by use of other specific gases, e.g. acetylene, oxyhydrogen
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/08—Other arrangements or adaptations of exhaust conduits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N5/00—Exhaust or silencing apparatus combined or associated with devices profiting from exhaust energy
- F01N5/04—Exhaust or silencing apparatus combined or associated with devices profiting from exhaust energy the devices using kinetic energy
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/04—Engines with exhaust drive and other drive of pumps, e.g. with exhaust-driven pump and mechanically-driven second pump
- F02B37/10—Engines with exhaust drive and other drive of pumps, e.g. with exhaust-driven pump and mechanically-driven second pump at least one pump being alternatively or simultaneously driven by exhaust and other drive, e.g. by pressurised fluid from a reservoir or an engine-driven pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
- F02B39/02—Drives of pumps; Varying pump drive gear ratio
- F02B39/08—Non-mechanical drives, e.g. fluid drives having variable gear ratio
- F02B39/085—Non-mechanical drives, e.g. fluid drives having variable gear ratio the fluid drive using expansion of fluids other than exhaust gases, e.g. a Rankine cycle
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- 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
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
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- 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
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0203—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels characterised by the type of gaseous fuel
- F02M21/0206—Non-hydrocarbon fuels, e.g. hydrogen, ammonia or carbon monoxide
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B2201/00—Fuels
- F02B2201/04—Gas
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- 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
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- 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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells
Abstract
The present invention relates to a kind of high-efficiency low-emission hydrogen release fuel combination dynamical systems, including hydrogen storage unit, hydrogen mixed fuel engine, control unit, high pressure nitrogen storage tank, blending tank, pressure-stabilizing rail, charge air cooler, EGR valve, remaining hydrogen absorptive unit, three-way catalytic apparatus and air cleaner.Hydrogen storage unit and high pressure nitrogen storage tank are connected respectively to blending tank, and blending tank is connected to fuel nozzle by pressure-stabilizing rail.Air intake is connected to air inlet by air cleaner.Exhaust pipe is divided into two-way, and a-road-through excess enthalpy hydrogen absorptive unit and three-way catalytic apparatus are connected to Waste gas outlet, and another way is connected to air inlet by charge air cooler and EGR valve.The present invention makes full use of High Pressure Hydrogen mixed fuel pressure that can do work, and is that turbo charger unit compresses combustion air using the pressure energy of the exhaust gas after the acting of hydrogen mixed fuel engine, improves the automobile dynamic system thermal efficiency.Tail gas recycles unburned hydrogen through remaining hydrogen absorptive unit and is utilized.
Description
Technical field
The invention belongs to technical field of power mechanical equipment, are related to a kind of high-efficiency low-emission hydrogen release fuel combination dynamical system.
Background technology
Into 21st century, automobile engine industry is developed by leaps and bounds, however gasoline engine and diesel engine at present
It is still the main machine of vehicular engine.Gasoline and diesel oil are all non-renewable resources, in order to slow down the scarcity of petroleum resources
Caused series of negative influences and reduces atmosphere pollution and automobile engine tail gas discharge, needs the generation for finding engine
With fuel, and hydrogen energy source is current optimal clean fuel.Hydrogen energy source is a kind of renewable resource in numerous alternative energy sources,
Calorific value is high, and most of product is vapor after burning, is a kind of ideal green fuel.Hydrogen Energy as substitute fuel
Source can solve two hang-ups：First, petroleum fuel reserves are limited, second is that the environmental pollution brought using petroleum fuel.
Environmental pollution and energy shortage have become two big outstanding problems of today's society, to seek human society and automobile
The sustainable development of industry, fuel cell car are the generally acknowledged environmentally protective vehicles that can solve energy and environmental problem simultaneously,
It is considered as the final choice of electric vehicle, is one of the Main way of development of automobile from now on.However by hydrogen storage system technology, at
Originally, the restriction of life and reliability factors so that pure fuel cell car is difficult real marketization operation, for automobile
The problems such as starting needs to export the cost of larger power, transient response characteristic, fuel cell system, countries in the world automobile making
Quotient starts attention to go to hybrid vehicle, improves the economy of automobile.
The shortcomings that hydrogen energy source is that the storing and transporting security of Hydrogen Energy is to worry in the industry at present, can be produced in the combustion process of hydrogen energy source
Raw NOx, can affect to environment.
Invention content
The object of the present invention is to provide a kind of high-efficiency low-emission hydrogen release fuel combination dynamical systems, and High Pressure Hydrogen is made full use of to mix
Fuel pressure can do work, and improve the automobile dynamic system thermal efficiency, reduce discharged nitrous oxides.
The technical scheme is that：High-efficiency low-emission hydrogen release fuel combination dynamical system, including hydrogen storage unit, hydrogen are mixed
Close engine fuel, control unit, air intake and Waste gas outlet.Hydrogen mixed fuel engine is equipped with air inlet, fuel sprays
Mouth, spark plug and exhaust outlet.Dynamical system is equipped with high pressure nitrogen storage tank, blending tank, pressure-stabilizing rail, charge air cooler, EGR valve, Yu Qing and inhales
Receive unit, three-way catalytic apparatus and air cleaner.Hydrogen storage unit and high pressure nitrogen storage tank are connected respectively to blending tank, mix
It closes tank and fuel nozzle is connected to by pressure-stabilizing rail.Air intake is connected to air inlet by air cleaner.Exhaust outlet is divided into two
Road, a-road-through excess enthalpy hydrogen absorptive unit and three-way catalytic apparatus are connected to Waste gas outlet, and another way passes through charge air cooler and EGR valve
It is connected to air inlet.
The present invention is alternately, dynamical system is equipped with turbo charger unit, high voltage stabilizing pump and dewatering dryer, whirlpool
It includes off-gas expander, high pressure fuel expanding machine and supercharger, off-gas expander, high pressure fuel expanding machine and increasing to take turns compress cell
Press is coaxially connected.Hydrogen mixed fuel engine is additionally provided with high pressure admission mouth.Blending tank is connected to by high pressure fuel expanding machine
Pressure-stabilizing rail, pressure-stabilizing rail outlet are connected to fuel nozzle, and air intake is connected to high pressure admission by air cleaner and supercharger
Mouthful.Exhaust outlet is connected to remaining hydrogen absorptive unit by off-gas expander all the way.High voltage stabilizing pump is connected to high pressure nitrogen storage tank,
High pressure nitrogen storage tank is connected to blending tank by dewatering dryer.
The present invention another is selected as, and dynamical system is equipped with low concentration blending tank, low concentration pressure-stabilizing rail and turbocharging list
Member, turbo charger unit include off-gas expander and supercharger, and off-gas expander and supercharger are coaxially connected, hydrogen fuel combination hair
Motivation is additionally provided with low concentration fuel nozzle.Hydrogen storage unit and high pressure nitrogen storage tank are connected respectively to low concentration blending tank and mix
Tank is closed, low concentration blending tank is connected to low concentration fuel nozzle by low concentration pressure-stabilizing rail, and blending tank is connected to by pressure-stabilizing rail
Fuel nozzle.Air intake is connected to air inlet by air cleaner and supercharger.Exhaust outlet is expanded by tail gas all the way
Machine is connected to remaining hydrogen absorptive unit.Hydrogen mixed fuel engine includes cylinder body and bent axle, and the inside of cylinder body is combustion chamber, combustion chamber
Interior to be equipped with piston, piston is connect by link mechanism with bent axle.Air inlet, fuel nozzle, spark plug, low concentration fuel nozzle and
Exhaust outlet is located in cylinder head, and air inlet and exhaust outlet are equipped with valve.Control unit is equipped with detection signal input part and control is believed
Number output end.
Hydrogen and high pressure nitrogen from hydrogen and high pressure nitrogen storage element successively enter hydrogen and height by a certain percentage
Nitrogen mixed cell is pressed, supercharging of the high pressure nitrogen to hydrogen fuel combination is realized while completing to mix.Then by adaptive
Formula fuel supply unit is sent into hydrogen mixed fuel engine, the work by combustion in hydrogen mixed fuel engine.After work by combustion
A tail gas part sends back to the air inlet of engine by exhaust gas recirculation unit.It is real that rest part is sent into exhaust aftertreatment unit
The recycling of existing hydrogen and low pollution emission.Dynamical system is additionally provided with safety and ventilation unit and thing occurs to avoid in hydrogen leak
Therefore.Whole system passes through control unit of engine（ECU）It is controlled to realize the work of steady ordered.Hydrogen and high pressure nitrogen
Separate individually storage.High pressure nitrogen is stored in high pressure nitrogen storage tank, and the pressure store of high pressure nitrogen storage tank is 0~100MPa.
Hydrogen storage mode includes high pressure compressed hydrogen storage, liquefaction hydrogen storage, hydride hydrogen-storing, new carbon hydrogen storage, organic liquid
Any of or a combination of hydrogen storage, inorganic matter hydrogen storage or other hydrogen storage modes.When using hydrogen storage material hydrogen storage, hydrogen is released
The required heat of gas can be provided by the remaining heat and power of dynamical system.
Equipped with one group of high pressure mixing tank, every group of high pressure mixing tank is provided with two or more high pressure mixing tanks and alternately fills
Gas and work.The density of hydrogen of hydrogen fuel combination is 6~100%, and the blend pressure of hydrogen fuel combination is 0~50MPa.High pressure is mixed
Hydrogen check valve is first opened in conjunction tank gas replenishment process and is filled with hydrogen from hydrogen storing unit, and hydrogen is closed after the hydrogen partial pressure for reaching setting
Then check valve opens nitrogen charging check valve and is filled with nitrogen from high pressure nitrogen storage tank, a certain amount of nitrogen is filled with by the hydrogen concentration of setting
Gas simultaneously increases to closing nitrogen charging check valve after certain pressure, and gas replenishment process terminates, and high pressure mixing tank is demarcated as " waiting for work " state,
Can devote oneself to work use.Two or more sets can be also arranged in high pressure mixing tank, correspond to the hydrogen mixing combustion of various concentration and pressure respectively
Material.
High pressure nitrogen can completely or partially be replaced by one or more mixtures of carbon dioxide or other inert gases,
Also allow that hydrogen partial is added in high pressure nitrogen.Hydrogen allows to be added other a certain proportion of gases, liquid or solid fuel
It is one or more, such as methane, methanol, ethyl alcohol, ammonia.
Control unit of engine（ECU）Acquire hydrogen mixed fuel engine rotating speed, accelerator pedal position and hydrogen fuel combination
Voltage stabilizing rail pressure signal, judges the current working of hydrogen mixed fuel engine, and controls automatically controlled pressure regulator valve, adjusts hydrogen fuel combination
The pressure of track, i.e. spray nozzle front end to target actual injection pressure.Simultaneously according in MAP when spray hydrogen corresponding with current working
It carves and the spray hydrogen duration controls its course of injection.Solve that fixation pressure fuel supply mode faces in idling, Smaller load work
The lower fuel injection of condition operating is unstable to export insufficient problem with power, torque when high speed, big load.Fuel sprays into strategy to protect
It demonstrate,proves time of ignition air-fuel ratio in engine cylinder and is less than 1.05, greatly reduce the generation of NOx, solve current hydrogen engine tail
The problem of containing NOx in gas.The strategy can also be applied on existing gasoline engine or diesel engine, such as be added when oil spout a small amount of
It is reducing atmosphere in cylinder when hydrogen realizes burning, to reduce the generation of NOx, and remaining hydrogen absorptive unit is set by extra hydrogen
Gas recycles, and avoids fuel consumption.Hydrogen mixed fuel engine includes cylinder body and bent axle, and the inside of cylinder body is combustion chamber, burning
Interior is equipped with piston, and piston is connect by link mechanism with bent axle, and cylinder cap is equipped with air inlet, exhaust outlet, the spray of hydrogen fuel combination
Mouth, spark plug, high pressure air jet nozzles.Hydrogen mixed fuel engine is sprayed by the way of in-cylinder direct-jet from hydrogen hybrid fuel nozzle
Cylinder.Hydrogen mixed fuel engine uses four-stroke engine, hydrogen hybrid fuel nozzle first to spray into a small amount of combustion in suction stroke
Material is blended in formation homogeneous lean gaseous mixture in cylinder with the air of sucking, the hydrogen mixing combustion before ignition advance angle in compression travel
Material nozzle adds sufficient fuel, is formed about the relatively dense region of gaseous mixture in spark plug, is then realized in cylinder after igniting
Stratified combustion, improves the thermal efficiency of engine, reduces fuel consumption.Hydrogen mixed fuel engine can also use air inlet
All or part of hydrogen fuel combination is added in the mode of road injection.
Turbo charger unit can be also added in entire dynamical system to increase air input of engine by air and overheavy firing, and turbine increases
It is level-one or two-stage to press unit.When being pressurized using first turbine, only using tail gas come pressurized air, from engine after work by combustion
A tail gas part out sends back to the air inlet of engine by exhaust gas recirculation unit, and rest part first passes through turbocharging
After the expanding machine acting compressed air of unit, it is then sent through recycling and low pollution emission that exhaust aftertreatment unit realizes hydrogen.It adopts
When with two turbocharging, while using tail gas and High Pressure Hydrogen fuel combination come pressurized air, from hydrogen and nitrogen high pressure mixing
The High Pressure Hydrogen fuel combination that unit comes is introduced into the high pressure fuel expanding machine acting of two turbocharging unit, then by adaptive
Formula fuel supply unit is answered to be sent into hydrogen mixed fuel engine, tail gas is then entered the tail of two turbocharging unit by above-mentioned flow
Gas expanding machine does work, and double expansion machine drives supercharger compressed air simultaneously, compresses air to high pressure.
When adding turbo charger unit in dynamical system, the operation system of engine can be changed as two-stroke, two-stroke
When piston operational process in there is no air-breathing, compression travel, only work by combustion and instroke.High Pressure Hydrogen fuel combination and high pressure
Air is flowed into work by combustion stroke leading portion in engine, promotion descent of piston, and hydrogen mixes after descent of piston to certain position
Fuel nozzle and high pressure air jet nozzles are closed, and spark plug is lighted a fire in suitable time of ignition, and the acting of hydrogen mixed fuel firing continues
Push descent of piston to lower dead center, work by combustion stroke terminates.Piston stroking upward later, cylinder exhaust outlet are opened, and exhaust row is started
Journey, when piston stroking upward to top dead centre, exhaust close, instroke terminates, and engine restarts work by combustion stroke, so
Back and forth.After engine is changed to two-stroke, it is possible to reduce engine suction, compression travel idle running energy consumption, effectively strengthen start
The acting ability of machine.
Exhaust aftertreatment unit includes remaining hydrogen absorptive unit and three-way catalytic apparatus.Tail gas first passes through remaining hydrogen absorptive unit will
Remaining hydrogen recycles in tail gas, and the rate of recovery reaches 90% or more.It is then fed into three-way catalytic apparatus reduction NOx, further
It is discharged after reducing NOx content.Also the sequence that can adjust both remaining hydrogen absorptive unit and three-way catalytic apparatus is to first pass through ternary
Catalytic unit is using remaining hydrogen absorptive unit.Remaining hydrogen absorptive unit using hydrogen storage material absorptions, UF membrane, molecular sieve adsorb or its
His Hydrogen Separation technique it is any or combinations thereof, two groups of alternations and regeneration is arranged in remaining hydrogen absorptive unit.It is interior to ensure
In the case of having leakage explosion accident will not occur for hydrogen system, and warning grade and coping mechanism are divided into two-stage, the first order 0.35%
Concentration sends out sound-light alarm when interior density of hydrogen reaches this value detector, and simultaneous transmission electric signal beats vehicle dormer window automatically
Begin to rehearse out hydrogen, and at this moment hydrogen-feeding system is Micro blazed-grating, will not cause the accident, and vehicle operator answers and at car inspection and repair
Check processing leak source.The second level is 2.25% concentration, sends out sound-light alarm when interior density of hydrogen reaches this value detector, simultaneously
Solenoid valve is closed, air supply system is cut off.It is to ensure vehicle and personal safety at this time, vehicle operator should be left immediately cannot be again
Continue to drive vehicle, and professional is notified to take measures.
High-efficiency low-emission hydrogen release fuel combination dynamical system of the present invention utilizes the exhaust gas after the acting of hydrogen mixed fuel engine
Pressure energy is that turbo charger unit compresses combustion air, and the pressure energy of High Pressure Hydrogen fuel combination gas is also utilized to drive turbocharging list
Member compression combustion air, and by High Pressure Hydrogen fuel combination direct cylinder injection, take full advantage of High Pressure Hydrogen mixed fuel pressure
It can do work with chemical energy, improve the automobile dynamic system thermal efficiency.Turbo charger unit is finished the tail gas after work(and is inhaled through remaining hydrogen
It receives the unburned hydrogen of unit recycling to be utilized, the rate of recovery reaches 90% or more.Exhaust gas enters three-element catalytic dress after recycling hydrogen
It sets, reduces the content of NOx in emission, be conducive to environment protection.
Description of the drawings
Fig. 1 is the flow diagram of high-efficiency low-emission hydrogen release fuel combination dynamical system of the present invention；
Fig. 2 is the flow diagram of another scheme of the present invention；
Fig. 3 is the structural schematic diagram of hydrogen mixed fuel engine；
Fig. 4 is the working stroke and instroke schematic diagram of hydrogen mixed fuel engine；
Fig. 5 is the flow diagram of the third embodiment of the invention.
Wherein：1-hydrogen storage unit, 2-low concentration blending tanks, 3-blending tanks, 4-pressure-stabilizing rails, 5-low concentrations are steady
Press rail, 6-detection signal input parts, 7-control units, 8-control signal outputs, 9-remaining hydrogen absorptive units, 10-ternarys
Catalytic unit, 11-Waste gas outlets, 12-turbo charger units, 13-air cleaners, 14-air intakes, 15-high pressures
Nitrogen storage tank, 16-off-gas expanders, 17-air inlets, 18-fuel nozzles, 19-spark plugs, the spray of 20-low concentration fuel
Mouth, 21-exhaust outlets, 22-valves, 23-cylinder bodies, 24-pistons, 25-link mechanisms, 26-bent axles, 27-superchargers,
28-hydrogen mixed fuel engines, 29-charge air coolers, 30-EGR valves, 31-high pressure admission mouths, 32-high pressure fuel expanding machines,
33-combustion chambers, 34-high voltage stabilizings pump, 35-dewatering dryers.
Specific implementation mode
With reference to embodiment and attached drawing, the present invention is described in detail.The scope of the present invention is not limited to embodiment,
Those skilled in the art make any change in the range of claim limits and also belong to the scope of protection of the invention.
Embodiment 1
High-efficiency low-emission hydrogen release fuel combination dynamical system of the present invention including hydrogen storage unit 1, hydrogen as shown in Figure 1, mix
Engine fuel 28, high pressure nitrogen storage tank 15, blending tank 3, pressure-stabilizing rail 4, charge air cooler 29, EGR valve 30, remaining hydrogen absorptive unit 9, three
First catalytic unit 10 and air cleaner 13, control unit 7, air intake 14 and Waste gas outlet 11.Hydrogen fuel combination starts
Machine 28 is equipped with air inlet 17, fuel nozzle 18, spark plug 19 and exhaust outlet 21.Hydrogen storage unit and high pressure nitrogen storage tank difference
It is connected to blending tank, blending tank is connected to fuel nozzle by pressure-stabilizing rail.Air intake is connected to air inlet by air cleaner
Mouthful.Exhaust outlet is divided into two-way, and a-road-through excess enthalpy hydrogen absorptive unit and three-way catalytic apparatus are connected to Waste gas outlet, and another way is logical
It crosses charge air cooler and EGR valve is connected to air inlet.Control unit 7 is equipped with detection signal input part 6 and control signal output 8.It is remaining
Hydrogen absorptive unit is connected to inlet cylinder.
Hydrogen storage unit stores hydrogen using magnesium system alloy hydrogen storage material, and hydrogen storage material is added using tail gas and electric power
Heat releases hydrogen when being heated to 150 DEG C.For nitrogen storage in high pressure nitrogen tank, the pressure of high pressure nitrogen tank is 80MPa.Mixing
The setting of tank 3 is alternately inflated there are two blending tank and work, and when inflation first opens hydrogen check valve and is filled with hydrogen, and Hydrogen Vapor Pressure reaches
2MPa closes hydrogen check valve, opens nitrogen check valve and is filled with nitrogen, by nitrogen after the pressure boost to 3MPa of hydrogen fuel combination gas
Gas closed check valve, at this time the blending tank can devote oneself to work, the density of hydrogen of hydrogen fuel combination is 70%.Hydrogen fuel combination is sent into
In pressure-stabilizing rail, then by nozzle direct cylinder injection, or it is sent into after air intake duct is closed with air pre-mixing and sucks gas from air inlet
In cylinder, work by combustion pushes automobilism to hydrogen fuel combination in the cylinder, and equivalent air-fuel ratio is 0.85 to reduce NOx's in cylinder
It generates.20% tail gas sends back to engine intake by exhaust gas recirculation unit.The tail gas of residue 80% first passes through Yu Qing suctions
90% remaining hydrogen in unit recycling tail gas is received, the absorbent of remaining hydrogen absorptive unit is zirconium system metal hydrogen storage material, and Yu Qing absorbs
Two groups of alternations are arranged in unit and regeneration, regenerated hydrogen are sent in engine inlets.Then tail gas is using ternary
It is discharged after catalytic unit, the NOx emission for reducing tail gas is 0.005g/km, and CO discharges are 0.09g/km, and HC discharges are 0.03g/
km。
Embodiment 2
Another embodiment of the present invention is as shown in Fig. 2, including hydrogen storage unit 1, hydrogen mixed fuel engine 28, height
Press nitrogen storage tank 15, blending tank 3, pressure-stabilizing rail 4, charge air cooler 29, EGR valve 30, remaining hydrogen absorptive unit 9,10 and of three-way catalytic apparatus
Air cleaner 13, control unit 7, high voltage stabilizing pump 34, dewatering dryer 35, air intake 14,12 and of turbo charger unit
Waste gas outlet 11.Turbo charger unit includes off-gas expander 16, high pressure fuel expanding machine 32 and supercharger 27, tail gas expansion
Machine, high pressure fuel expanding machine and supercharger are coaxially connected, and hydrogen mixed fuel engine is equipped with air inlet 17, fuel nozzle 18, fire
Flower plug 19, high pressure admission mouth 31 and exhaust outlet 21.Hydrogen storage unit and high pressure nitrogen storage tank are connected respectively to blending tank, mixing
Tank is connected to pressure-stabilizing rail, and pressure-stabilizing rail outlet is divided into two-way, is connected to fuel nozzle all the way, and another way is connected to air inlet, connection
Pipeline is equipped with valve.Air intake 14 is connected to high pressure admission mouth by air cleaner 13 and supercharger.Exhaust outlet is divided into two
Road, is connected to air inlet by charge air cooler and EGR valve all the way, and another way passes through off-gas expander, remaining hydrogen absorptive unit and ternary
Catalytic unit is connected to Waste gas outlet.Control unit 7 is equipped with detection signal input part 6 and control signal output 8.Yu Qing inhales
Receive the entrance that unit is connected to hydrogen storage unit.High voltage stabilizing pump is connected to high pressure nitrogen storage tank 15, and high pressure nitrogen storage tank is logical
It crosses dewatering dryer and is connected to blending tank.
Hydrogen storage unit stores hydrogen using vanadium system alloy hydrogen storage material in the present embodiment, hydrogen storage material using tail gas and
Electric power is heated, and hydrogen is released when being heated to 200 DEG C.Storage is the gaseous mixture of nitrogen and hydrogen in high pressure nitrogen tank,
A concentration of 50%, the pressure of high pressure nitrogen tank is 40MPa.The setting of blending tank 3 is alternately inflated there are two blending tank and work, inflation
When first open hydrogen check valve and be filled with hydrogen, Hydrogen Vapor Pressure closes hydrogen check valve after reaching 15MPa, opens nitrogen check valve and fills
Enter nitrogen, by nitrogen closed check valve after the pressure boost to 30MPa of hydrogen fuel combination gas, the blending tank can put into work at this time
Make, the density of hydrogen of hydrogen fuel combination is 75%.
Dynamical system adds turbo charger unit to increase air input of engine by air and overheavy firing in the present embodiment.Turbine increases
Pressure unit is two-stage, while using tail gas and High Pressure Hydrogen fuel combination come pressurized air.First from hydrogen and nitrogen high pressure mixing
The high pressure fuel expanding machine 32 that the 30MPa High Pressure Hydrogen fuel combinations that unit comes enter two turbocharging unit does work, and is expanded to
Hydrogen mixed fuel engine is sent by self-adapting type fuel supply unit after 3MPa.The tail gas of engine 90% is introduced into two-stage
The off-gas expander 16 of turbo charger unit does work, and is then sent through recycling and low stain row that exhaust aftertreatment unit realizes hydrogen
It puts.The tail gas of residue 10% sends back to the air inlet of engine by exhaust gas recirculation unit.Double expansion machine drives supercharging simultaneously
27 compressed air of machine, compresses air to 3MPa.
The operation system of engine can be changed as two-stroke.It is not inhaled in piston operational process when operation system is two-stroke
Gas, compression travel, only work by combustion and instroke.High Pressure Hydrogen fuel combination and pressure-air are in work by combustion stroke leading portion
It flows into engine, promotion descent of piston, hydrogen fuel combination burner and high pressure air jet nozzles after descent of piston to certain position
It closes, spark plug is lighted a fire in suitable time of ignition, and the acting of hydrogen mixed fuel firing continues to press on descent of piston to lower dead center, combustion
Working stroke is burnt to terminate.Piston stroking upward later, cylinder exhaust outlet are opened, and instroke is started, when piston stroking upward to top dead centre, row
Gas port is closed, and instroke terminates, and engine restarts work by combustion stroke, and so on.After engine is changed to two-stroke,
Can reduce engine suction, compression travel idle running energy consumption, the effectively acting ability of reinforcing stimulus.The two-stroke of 4 cylinders
Engine is equivalent to the acting ability of common 8 Cylinder engine.Work by combustion pushes automobilism, gas to hydrogen fuel combination in the cylinder
Equivalent air-fuel ratio is 0.95 in cylinder.20% tail gas sends back to engine intake by exhaust gas recirculation unit.Residue 80%
Tail gas first passes through 90% remaining hydrogen in remaining hydrogen absorptive unit recycling tail gas, and the absorbent of remaining hydrogen absorptive unit is zirconium system metal
Hydrogen storage material, two groups of alternations are arranged in remaining hydrogen absorptive unit and regeneration, the hydrogen after regeneration are added to inlet cylinder.Then
For tail gas using being discharged after three-way catalytic apparatus, it is 0.01g/km to reduce NOx emission in tail gas, and CO discharges are 0.07g/km, HC
Discharge is 0.023g/km.
Example 3
The third embodiment of the invention is as shown in figure 5, including hydrogen storage unit 1, high pressure nitrogen storage tank 15, low concentration
Blending tank 2, blending tank 3, pressure-stabilizing rail 4, low concentration pressure-stabilizing rail 5, hydrogen mixed fuel engine 28, turbo charger unit 12, control
Unit 7, air intake 14, remaining hydrogen absorptive unit 9, three-way catalytic apparatus 10, air cleaner 13 and Waste gas outlet 11.Turbine
Compress cell includes off-gas expander 16 and supercharger 27, and off-gas expander and supercharger are coaxially connected.Hydrogen fuel combination starts
Machine includes cylinder body 23 and bent axle 26, and the inside of cylinder body is combustion chamber 33, is equipped with piston 24 in combustion chamber, piston passes through link mechanism
25 connect with bent axle.The cylinder cap of cylinder body is equipped with air inlet 17, fuel nozzle 18, spark plug 19,20 and of low concentration fuel nozzle
Exhaust outlet 21, air inlet and exhaust outlet are equipped with valve 22.Air intake is connected to supercharger entrance by air cleaner, supercharging
Machine outlet is connected to air inlet.Hydrogen storage unit and high pressure nitrogen storage tank are connected respectively to low concentration blending tank and blending tank,
Low concentration blending tank and blending tank are respectively set two and are used alternatingly.Low concentration blending tank is connected to low by low concentration pressure-stabilizing rail
Concentration fuel nozzle, blending tank are connected to fuel nozzle by pressure-stabilizing rail.More than being connected all the way by off-gas expander of exhaust outlet
Hydrogen absorptive unit, remaining hydrogen absorptive unit are connected to Waste gas outlet 11 by three-way catalytic apparatus.The another way of exhaust outlet passes through
Exhaust gas recirculation unit is connected to air inlet.Control unit 7 is equipped with detection signal input part 6 and control signal output 8.It is low dense
Degree pressure-stabilizing rail and pressure-stabilizing rail have 4 branches respectively, are connected respectively to the low concentration fuel nozzle and fuel nozzle of each cylinder body.It is remaining
Hydrogen absorptive unit is connected to inlet cylinder.
Hydrogen mixed fuel engine 28 is four-stroke engine, since fuel gas and combustion air have certain high pressure
The operation system of power, engine is four strokes or is changed to two-stroke, does not have air-breathing, compression in piston operational process as shown in Figure 4
Stroke, only work by combustion and instroke, a working strokes spray into section, and b is working stroke acting section, and c is instroke.Hair
After motivation is changed to two-stroke, it is possible to reduce engine suction, compression travel idle running energy consumption, the effectively acting of reinforcing stimulus
Ability.
Hydrogen storage unit stores hydrogen using high pressure hydrogen storage tank, and high pressure hydrogen storage tank pressure is 30MPa.Nitrogen storage
In high pressure nitrogen tank, the pressure of high pressure nitrogen tank is 80MPa.Low concentration blending tank 2 and blending tank 3 mix there are two being respectively provided with
Tank is alternately inflated and work, and density of hydrogen is 30% in low concentration blending tank 2, and density of hydrogen is 70% in blending tank 3.It is respectively fed to
In low concentration pressure-stabilizing rail 5 and pressure-stabilizing rail 4.Hydrogen mixed fuel engine is by the way of in-cylinder direct-jet respectively from low-concentration hydrogen fuel
Nozzle, fuel nozzle spray into fuel.Hydrogen mixed fuel engine uses four-stroke engine, and low-concentration hydrogen fuel combination is in air-breathing
The hydrogen fuel combination of 30% equivalent is added in stroke, formation homogeneous lean gaseous mixture, high concentration in cylinder are blended in the air of sucking
The hydrogen fuel combination of 70% equivalent is added in hydrogen fuel combination in compression travel before ignition advance angle, be formed about in spark plug mixed
The relatively dense region of gas is closed, stratified combustion is then realized after igniting in cylinder, improves the thermal efficiency of engine, reduce combustion
Material consumption.Work by combustion pushes automobilism to hydrogen fuel combination in the cylinder, and equivalent air-fuel ratio is 0.9 to reduce NOx in cylinder
Generation.10% tail gas sends back to engine intake by exhaust gas recirculation unit.The tail gas of residue 90% first passes through Yu Qing
Absorptive unit recycles 90% remaining hydrogen in tail gas, and the absorbent of remaining hydrogen absorptive unit is calcium system metal hydrogen storage material, and Yu Qing inhales
It receives unit two groups of alternations of setting and regeneration, the hydrogen after regeneration is sent to inlet cylinder.Then tail gas is urged using ternary
Makeup postpones discharge, and it is 0.008g/km to reduce NOx emission in tail gas, and CO discharges are 0.08g/km, and HC discharges are 0.027g/km.
Claims (15)
1. a kind of high-efficiency low-emission hydrogen release fuel combination dynamical system, including hydrogen storage unit（1）, hydrogen mixed fuel engine
（28）, control unit（7）, air intake（14）And Waste gas outlet（11）；The hydrogen mixed fuel engine（28）Equipped with into
Gas port（17）, fuel nozzle（18）, spark plug（19）And exhaust outlet（21）；It is characterized in that：The dynamical system is equipped with elevated pressure nitrogen
Gas storage tank（15）, blending tank（3）, pressure-stabilizing rail（4）, charge air cooler（29）, EGR valve（30）, remaining hydrogen absorptive unit（9）, three-element catalytic
Device（10）And air cleaner（13）；The hydrogen storage unit and high pressure nitrogen storage tank are connected respectively to blending tank, described
Blending tank is connected to fuel nozzle by pressure-stabilizing rail；The air intake is connected to air inlet by air cleaner；The row
Exhaust pipe after gas port is divided into two-way, and a-road-through excess enthalpy hydrogen absorptive unit and three-way catalytic apparatus are connected to Waste gas outlet,
Another way is connected to air inlet by charge air cooler and EGR valve.
2. high-efficiency low-emission hydrogen release fuel combination dynamical system according to claim 1, it is characterized in that：The dynamical system is set
There is turbo charger unit（12）, high voltage stabilizing pump（34）And dewatering dryer（35）, the turbo charger unit includes that tail gas is swollen
Swollen machine（16）, high pressure fuel expanding machine（32）And supercharger（27）, the off-gas expander（16）, high pressure fuel expanding machine and increasing
Press is coaxially connected；The hydrogen mixed fuel engine（28）It is additionally provided with high pressure admission mouth（31）, the blending tank passes through high pressure
Fuel volumetric growth machine is connected to pressure-stabilizing rail, pressure-stabilizing rail（4）Outlet is connected to fuel nozzle（18）, the air intake（14）Pass through sky
Air cleaner（13）It is connected to high pressure admission mouth with supercharger；The exhaust outlet is connected to Yu Qing by off-gas expander all the way
Absorptive unit（9）；The high voltage stabilizing pump is connected to high pressure nitrogen storage tank（15）, the high pressure nitrogen storage tank（15）Pass through dehydration
Drier is connected to blending tank（3）.
3. high-efficiency low-emission hydrogen release fuel combination dynamical system according to claim 1, it is characterized in that：The dynamical system is set
There is low concentration blending tank（2）, low concentration pressure-stabilizing rail（5）And turbo charger unit（12）, the turbo charger unit includes tail gas
Expanding machine and supercharger（27）, the off-gas expander（16）It is coaxially connected with supercharger；The hydrogen mixed fuel engine
（28）It is additionally provided with low concentration fuel nozzle（20）；It is mixed that the hydrogen storage unit and high pressure nitrogen storage tank are connected respectively to low concentration
Close tank and blending tank（3）, the low concentration blending tank is connected to low concentration fuel nozzle, the mixing by low concentration pressure-stabilizing rail
Tank passes through pressure-stabilizing rail（4）It is connected to fuel nozzle（18）；The air intake（14）Pass through air cleaner（13）And supercharger
It is connected to air inlet（17）；The exhaust outlet is connected to remaining hydrogen absorptive unit by off-gas expander all the way（9）.
4. high-efficiency low-emission hydrogen release fuel combination dynamical system according to claim 1, it is characterized in that：The hydrogen fuel combination
Engine（28）Including cylinder body（23）And bent axle（26）, the inside of cylinder body is combustion chamber（33）, piston is equipped in the combustion chamber
（24）, the piston passes through link mechanism（25）It is connect with bent axle；The air inlet（17）, fuel nozzle（18）, spark plug
（19）, low concentration fuel nozzle（20）And exhaust outlet（21）In cylinder head, the air inlet and exhaust outlet are equipped with valve
（22）.
5. high-efficiency low-emission hydrogen release fuel combination dynamical system according to claim 1, it is characterized in that：Described control unit
（7）Equipped with detection signal input part（6）And control signal output（8）.
6. high-efficiency low-emission hydrogen release fuel combination dynamical system according to claim 1, it is characterized in that：From hydrogen and high pressure
The hydrogen and high pressure nitrogen of nitrogen storage unit successively enter hydrogen and high pressure nitrogen mixed cell by a certain percentage, complete to mix
Supercharging of the high pressure nitrogen to hydrogen fuel combination is realized while conjunction；Then hydrogen mixing is sent by self-adapting type fuel supply unit
Engine fuel, the work by combustion in hydrogen mixed fuel engine；A tail gas part after work by combustion passes through exhaust gas recirculatioon
Unit sends back to the air inlet of engine；Rest part is sent into recycling and the low stain row that exhaust aftertreatment unit realizes hydrogen
It puts, exhaust aftertreatment unit includes remaining hydrogen absorptive unit and three-way catalytic apparatus；Dynamical system is additionally provided with safety and ventilation unit
Accident occurs to avoid in hydrogen leak；Whole system passes through control unit of engine（ECU）It is controlled to realize stabilization
Orderly work.
7. high-efficiency low-emission hydrogen release fuel combination dynamical system according to claim 1, it is characterized in that：Hydrogen and high pressure nitrogen
Separate individually storage；High pressure nitrogen is stored in high pressure nitrogen storage tank, and the pressure store of high pressure nitrogen storage tank is 0~100MPa；
Hydrogen storage mode includes high pressure compressed hydrogen storage, liquefaction hydrogen storage, hydride hydrogen-storing, new carbon hydrogen storage, organic liquid
Any of or a combination of hydrogen storage, inorganic matter hydrogen storage mode；When using hydrogen storage material hydrogen storage, the required heat of hydrogen is released
Amount can be provided by the remaining heat and power of dynamical system.
8. high-efficiency low-emission hydrogen release fuel combination dynamical system according to claim 1, it is characterized in that：It is mixed equipped with one group of high pressure
Tank is closed, every group of high pressure mixing tank is provided with two or more high pressure mixing tanks and alternately inflates and work；Hydrogen fuel combination
Density of hydrogen is 6~100%, and the blend pressure of hydrogen fuel combination is 0~50MPa；Hydrogen is first opened in high pressure mixing tank gas replenishment process
Gas check valve is filled with hydrogen from hydrogen storing unit, and hydrogen check valve is closed after reaching the hydrogen partial pressure of setting, then opens nitrogen charging list
It is filled with nitrogen to valve from high pressure nitrogen storage tank, a certain amount of nitrogen is filled with by the hydrogen concentration of setting and is closed after increasing to certain pressure
Nitrogen charging check valve is closed, gas replenishment process terminates, and high pressure mixing tank is demarcated as " waiting for work " state, and can devote oneself to work use；Or institute
It states high pressure mixing tank and two or more sets is set, correspond to various concentration and the hydrogen fuel combination of pressure respectively.
9. high-efficiency low-emission hydrogen release fuel combination dynamical system according to claim 1, it is characterized in that：High pressure nitrogen is by dioxy
The one or more mixtures for changing carbon or inert gas completely or partially replace, and also allow that hydrogen partial is added in high pressure nitrogen；
The hydrogen allow to be added a certain proportion of methane, methanol, ethyl alcohol, ammonia it is one or more.
10. high-efficiency low-emission hydrogen release fuel combination dynamical system according to claim 1, it is characterized in that：It mixes and fires including hydrogen
Expect pressure-stabilizing rail, hydrogen hybrid fuel nozzle, automatically controlled pressure regulator valve, hydrogen fuel combination pipeline；Control unit of engine（ECU）It is mixed to acquire hydrogen
Engine fuel rotating speed, accelerator pedal position and hydrogen fuel combination voltage stabilizing rail pressure signal are closed, judges hydrogen mixed fuel engine
Current working, and control automatically controlled pressure regulator valve, adjust the pressure of hydrogen fuel combination track；Simultaneously according in MAP with current working
Corresponding spray hydrogen moment and spray hydrogen duration control its course of injection；Solve that fixation pressure fuel supply mode faces idle
Power, torque export insufficient problem when speed, small load condition operate unstable lower fuel injection and high speed, big load；Fuel
Strategy is sprayed into ensure that equivalent air-fuel ratio is less than 1.05 in time of ignition engine cylinder, greatly reduces the generation of NOx, solves
The problem of containing NOx in hydrogen engine tail gas at present；The strategy is applied on existing gasoline engine or diesel engine, and when oil spout adds
It is reducing atmosphere that it is interior, which to enter cylinder when hydrogen realizes burning, and to reduce the generation of NOx, and remaining hydrogen absorptive unit is arranged will be extra
Hydrogen recycles, and avoids fuel consumption.
11. high-efficiency low-emission hydrogen release fuel combination dynamical system according to claim 1, it is characterized in that：Hydrogen fuel combination is sent out
Motivation uses four-stroke engine, hydrogen mixed fuel engine to spray into vapour from hydrogen hybrid fuel nozzle by the way of in-cylinder direct-jet
Cylinder makes full use of the pressure energy and chemical energy of hydrogen fuel combination；Hydrogen hybrid fuel nozzle first sprays into a small amount of combustion in suction stroke
Material is blended in formation homogeneous lean gaseous mixture in cylinder with the air of sucking, the hydrogen mixing combustion before ignition advance angle in compression travel
Material nozzle adds sufficient fuel, is formed about the relatively dense region of gaseous mixture in spark plug, is then realized in cylinder after igniting
Stratified combustion, improves the thermal efficiency of engine, reduces fuel consumption；Or the hydrogen mixed fuel engine use into
All or part of hydrogen fuel combination is added in the mode of gas-duct jetting.
12. high-efficiency low-emission hydrogen release fuel combination dynamical system according to claim 1, it is characterized in that：Entire dynamical system
In add turbo charger unit to increase air input of engine by air and overheavy firing, turbo charger unit is level-one or two-stage；Using
When first turbine is pressurized, only using tail gas come pressurized air, the tail gas part come out from engine after work by combustion passes through row
Gas recycling unit sends back to the air inlet of engine, and the expanding machine acting compression that rest part first passes through turbo charger unit is empty
After gas, it is then sent through recycling and low pollution emission that exhaust aftertreatment unit realizes hydrogen；When using two turbocharging, while profit
With tail gas and High Pressure Hydrogen fuel combination come pressurized air, combustion is mixed from hydrogen with the High Pressure Hydrogen that nitrogen high pressure mixing unit comes first
High pressure fuel expanding machine of the material into two turbocharging unit（32）Acting, is then sent by self-adapting type fuel supply unit
Enter hydrogen mixed fuel engine, tail gas then enters the off-gas expander of two turbocharging unit（16）Acting, double expansion machine
Drive supercharger simultaneously（27）Compressed air compresses air to high pressure.
13. high-efficiency low-emission hydrogen release fuel combination dynamical system according to claim 1, it is characterized in that：When in dynamical system
When adding turbo charger unit, the operation system of engine changes into two-stroke；It is not inhaled in piston operational process when two-stroke
Gas, compression travel, only work by combustion and instroke；High Pressure Hydrogen fuel combination and pressure-air are in work by combustion stroke leading portion
It flows into engine, promotion descent of piston, hydrogen fuel combination burner and high pressure air jet nozzles after descent of piston to certain position
It closes, spark plug is lighted a fire in suitable time of ignition, and the acting of hydrogen mixed fuel firing continues to press on descent of piston to lower dead center, combustion
Working stroke is burnt to terminate；Piston stroking upward later, cylinder exhaust outlet are opened, and instroke is started, when piston stroking upward to top dead centre, row
Gas port is closed, and instroke terminates, and engine restarts work by combustion stroke, and so on.
14. high-efficiency low-emission hydrogen release fuel combination dynamical system according to claim 1, it is characterized in that：Exhaust aftertreatment list
Member includes remaining hydrogen absorptive unit and three-way catalytic apparatus；Tail gas first passes through remaining hydrogen absorptive unit and recycles hydrogen remaining in tail gas
It utilizes, the rate of recovery reaches 90% or more；Then tail gas is sent into three-way catalytic apparatus and restores NOx, further decreases NOx content heel row
It puts；Or the sequence of both the remaining hydrogen absorptive unit of adjustment and three-way catalytic apparatus is to first pass through three-way catalytic apparatus using remaining
Hydrogen absorptive unit；Remaining hydrogen absorptive unit using hydrogen storage material absorption, UF membrane, molecular sieve adsorbed hydrogen separating technology it is any
Or combinations thereof, two groups of alternations and regeneration is arranged in remaining hydrogen absorptive unit；Or adjust tail gas temperature and pressure to meet on
State the requirement of remaining hydrogen absorptive unit.
15. high-efficiency low-emission hydrogen release fuel combination dynamical system according to claim 1, it is characterized in that：To ensure interior hydrogen
Explosion accident will not occur in the case of having leakage for system, and warning grade and coping mechanism are divided into two-stage, and the first order is 0.35% dense
Degree, sends out sound-light alarm, simultaneous transmission electric signal automatically opens vehicle dormer window when interior density of hydrogen reaches this value detector
Hydrogen is discharged；The second level is 2.25% concentration, sends out sound-light alarm when interior density of hydrogen reaches this value detector, simultaneously closes off
Solenoid valve cuts off air supply system.
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