CN2846775Y

CN2846775Y - Oxygen adding type internal combustion engine for vehicle

Info

Publication number: CN2846775Y
Application number: CN 200520014344
Authority: CN
Inventors: 赵志贤
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-08-25
Filing date: 2005-08-25
Publication date: 2006-12-13
Anticipated expiration: 2015-08-25

Abstract

The utility model discloses an oxygen adding type internal combustion engine for vehicles. The oxygen adding type internal combustion engine for vehicles comprises an internal combustion engine which comprises a gas inlet main pipe, a combustion chamber and a gas evacuating main pipe. The internal combustion engine is assembled with an oxygen adding mechanism which can be used for controlling the oxygen adding operation according to the combination property and the operating condition of the internal combustion engine. The oxygen adding mechanism comprises oxygen cylinder components, a pressure-reducing valve, an oxygen meter, a combination control valve, an electronic control unit and a connecting pipeline, all of which are communicated with each other. The gas evacuating main pipe is communicated with a gas evacuating pipe and a waste gas control valve. The waste gas control valve is divided into two routes, wherein one route waste gas pipe is communicated with a gas inlet pipe and the other route is connected to the electronic control unit via an oxygen concentration sensor. Under the precondition that the power performance of the internal combustion engine is guaranteed, the utility model adopts a controlling pathway and a controlling process which are different from the pathway and process that fuel is used for oil supply, and favorable influence is imposed by the oxygen adding type internal combustion engine for vehicles on the whole cycling process of mixed gas, which includes forming, firing, burning and discharging. The oxygen adding type internal combustion engine for vehicles can decrease fuel consumption, and simultaneously can improve the discharging performance of the internal combustion engine, so the oxygen adding type internal combustion engine for vehicles reaches many goals. The utility model can synthetically improve the power performance, the economical efficiency, the discharging character and the operating smoothness of the internal.

Description

A kind of automobile-used oxygenation type internal combustion engine

Technical field

The utility model relates to technical field of internal combustion engines, is specifically related to a kind of automobile-used oxygenation type internal combustion engine.

Technical background

Current internal-combustion engine technology and use quite ripe, to whenever changing further and all will paying huge cost.On engine performance,, develop into the economic pursuit and the discharging feature of environmental protection from pursuing power character and Economy emphatically.In the face of Abgasgesetz and fuel economy rules, and the severe challenge of other emerging power system, internal-combustion engine needs the comprehensive conspicuous contradiction that solves between power character, Economy, emission performance and the smoothness of operation, to solve the energy conservation and environmental protection of internal-combustion engine and equipment thereof especially, though maximum with the exhaust gas purification measure that Vehicular internal combustion engine adopts, technology is also most advanced, but still attends to one thing and lose sight of another, lack perfection the puzzlement that makes each big city, the world polluted by emission performance.

Because the significant role that supercharging technology is brought into play at aspects such as energy saving, air conservation and reduction noises, at first make supercharging technology on diesel engine, obtain using widely, especially turbosupercharger is widely used on heavy-duty car, engineering machinery, farm machinery, locomotive, tank and the generator set, but few of application on car; Yet, in recent ten years,, being total to the rail The Application of Technology along with the maturation of electric jet technology, the stationarity and the emission performance of diesel engine running are improved, and make the diesel engine of oil consumption than petrol engine low 30%～40% finally, are applied on the car that states such as Europe produce.But, the Exhaust Control for Diesel Engine technology is not mature enough, takes the emission controls by improving combustion control measure more, is difficult to emphasis and reduces nitride NO _xAnd soot particle, make the energy-conservation diesel engine that should be first-selected of people, on passenger car applications, popularize in a large number; Also have, the operating mode of Vehicular internal combustion engine constantly changes with road conditions, be difficult to be fixed on the operation of efficient district, the turbosupercharger that matches, because definite operating range is arranged, can only take the specific operating mode of diesel engine into account, also can not make gas compressor be operated in efficient district, make energy-conservation being restricted, exist not enough.

The supercharging of petrol engine never is widely used on the vehicle gasoline engine, especially on the carburetor gasoline engine, reason is petrol engine supercharging many than the diesel engine difficulty, but along with vehicle emission pollution is serious day by day, do one's utmost on the improvement motor in various countries, not only overcome the difficulty of petrol engine supercharging, and realized lean-burn by EFI, technology such as automatically controlled, effects of energy conservation and environmental protection is significantly improved, if the measure of exhaust emission emission controls by improving combustion is not enough, just further take the external purification measure to meet the demands, make petrol engine on passenger car applications, still have greater advantage.But mixture strength is the main factor that influences gasoline exhaust after all, needs to use the three-way catalyst emphasis to reduce HC and CO, though but environmental protection is not energy-conservation like this; Equally, the vehicle gasoline engine supercharging adopts turbo charge system energy-conservation, also is subjected to not in the efficient restriction of distinguishing, and adopts the engine driven supercharging system that Economy is descended to some extent; As a result, making people select diesel engine on car still is that petrol engine is in a dilemma, Nan Gua that the fuel-economizing of states such as Japan alternatives reaches 34% hybrid vehicle is further energy-conservation.

For control automobile energy-saving and emission problem, countries such as the U.S. go back the quality that emphasis improves gasoline except that starting with from the structure of vehicle and motor and annex thereof, promote clean fuel, and strengthen road construction; Use clean fuel directly to improve vehicular discharge because improve oil product, improve atmosphere environment, and can create conditions for relevant pump-down process The application of new technique; And improving oil product, to use adding of clean fuel brake specific exhaust emission rules sternly to work faster; Adding sternly generally speaking of Abgasgesetz, can only require new car to reach the new standard of rules and regulations, and really taking effect needed after several years, and the raising of oil quality can be benefited all In-Use Motor Vehicles, can play the effect of getting instant result.But, reformed gasoline and conventional gasoline contain the oxygen agent owing to added in the reformed gasoline by comparison, and its Economy will differ from 1%～3%; Promote gas combustion automobile exactly, " gas, car, stand " problem is also arranged, need the control of complicated management system and emission control systems to purify, otherwise exhaust emission increases on the contrary.

Specific to China, the motor vehicle fuel consumption level of China is higher by 25% than Europe, and is higher by 20% than Japan; Wherein, the external like product of gasoline engine oil loss-rate is high by 10%～15%, and diesel engine is high by 10%～13%.Remove European car and select the modern diesel engine of fuel-economizing more than 30% in a large number, Japan promotes outside the hybrid power car of fuel-economizing 34%, main cause is the replacement that do not upgrade in time of China's internal-combustion engine, needs the power plant dieselization, extensive use supercharging, EFI and technology such as automatically controlled.Yet, there are restraining factors such as technology, fund, market, policy and management, cause and still have a certain amount of carburetor gasoline engine in the In-Use Motor Vehicles, and there is not a supercharged diesel engine, on car, generally there is not turbosupercharger, the time of needs several years even more than ten years if update, could progressively break away from the technical situation of follow-up again and again.

In disclosed patented technology, as the applying date be on March 11st, 1997, application number is 97207737.5 model utility " a kind of air-intake of combustion engine oxygen-increasing device "; Comprise suction tude housing, support and electrozone luminous element; Support is contained on the suction tude housing, and the electrozone luminous element is rack-mount; When electrozone luminous element circuit is connected, promptly produce ozone, increase the content of oxygen in the air inlet.And for example the applying date is on March 26th, 2003, application number is that 03120983.1 model utility " internal-combustion engine automatic aerator " provides the oxygen source by the high pressure oxygen container, by reduction valve, the stepless electric control valve of dsah-pot, dsah-pot, magnetic switch main valve, oxygen-supplying amount modulating valve, at last oxygen is imported induction system of internal combustion engine.Though above-mentioned publication has been done some innovations, at the energy-conservation difficult problem of automobile environment-protection, but do not have to consider " gas, car, stand " three big technology essential factors in interior necessary condition comprehensively, and take out comprehensive solution with advanced technology and oxygen supply; Do not further investigate lean burn technology, solve the difficulty of catching fire with the main means of stratified charge with the burning existence; Do not recognize the key effect at gas station and oxygen supply station, allow people conveniently use and the rapid universal popularization that obtains; Do not recognize the significance of emission control systems, and Vehicular internal combustion engine is taked the meaning of computer control.The supplemental oxygen control emission scenary that the result is independent, be difficult to possess the basic configuration and the requirement of Modern Internal-Combustion Engine indispensability, compare with advanced person's the car technology and the gas combustion automobile technology of popularization, more obvious technological scheme is imperfect and have major defect, is reflected on the effect also can't meet the demands.

Summary of the invention

Technical problem to be solved in the utility model is the deficiency that exists at prior art, provide a kind of can be according to the combination property of internal-combustion engine and the automobile-used oxygenation type internal combustion engine of operating mode control oxygenation thereof.It can be according to the requirement of equipment working condition to combustion engine powered property, when the internal-combustion engine middling speed, because good economy performance and need not oxygenation, when idling, acceleration or high speed, because of a large amount of oil spouts in mixed gas overrich or the cylinder, implement a large amount of oxygenations and improve velocity of combustion rapidly, to guarantee perfect combustion and to reduce waste-heat loss relatively; And when low speed and high speed, more oil spout in the denseer or cylinder is only carried out a small amount of oxygenation with suitable raising velocity of combustion because of mixed gas, guarantees perfect combustion and corresponding minimizing waste-heat loss.

The utility model solves the problems of the technologies described above the technological scheme that is adopted: a kind of automobile-used oxygenation type internal combustion engine, include the internal-combustion engine of intake manifold, firing chamber, exhaust manifold, concrete technical measures also comprise: internal-combustion engine is fitted with can be according to the combination property of internal-combustion engine and the oxygenation mechanism of operating mode control oxygenation thereof; Oxygenation mechanism comprises oxygen cylinder assembly, reduction valve, oxygen gauge, combined control valve, ECU (Electrical Control Unit) and the connecting pipeline that is connected; Exhaust manifold is communicated with outlet pipe and exhaust gas control valve, and exhaust gas control valve divides two-way, and one road flue gas leading is communicated with suction tude, and another road connects ECU (Electrical Control Unit) through oxygen concentration sensor.

The measure of taking for the optimization such scheme specifically comprises:

Combined control valve and ECU (Electrical Control Unit) are controlled the supply IC engine supply that adds oxygen supply gas according to equipment working condition, and may command combustion chambers of internal combustion engines flame of combustion propagation speed, thereby have controlled the speed and the degree of perfection of burning; The oxygen supply gas that adds of oxygenation mechanism adopts oxygen inhalation mode or spray oxygen mode to be transported to internal-combustion engine; Internal-combustion engine is to have between open cycle and close comprehensive endless form between the circulation.

Oxygen cylinder assembly in the oxygenation mechanism and connecting pipeline have been convenient to change a bottle supplemental oxygen for removably connecting; The oxygen cylinder assembly is matched oxygen cylinder, cylinder valve and safety valve.

Exhaust manifold is communicated with emission control; Be communicated with closure between intake manifold and the suction tude, the flow of closure control mixed gas, closure also can directly link to control with foot valve and add the oxygen supply supply.

Exhaust manifold is communicated with turbosupercharger, and this turbosupercharger one tunnel is communicated with outlet pipe through emission control, and another road is communicated with suction tude through intercooler; This turbosupercharger also is communicated with suction tude.

The air fuel ratio that adds oxygen supply gas may command internal-combustion engine mixed gas of oxygenation mechanism, and the local anoxic during oil jetting combustion in the may command internal combustion (IC) engine cylinder, and the local anoxic of compression autoignition before and after catching fire.

Internal-combustion engine adds oxygen supply gas may command and connects to the air fuel ratio of oil nozzle chamber mixed gas; Mixed gas is communicated to cylinder respectively with the intake duct that adds oxygen supply gas, and is separated with dividing plate along intake duct; The able to turn on or off mixed gas of the intake valve of internal-combustion engine and add the suction port of oxygen supply gas to the oil nozzle chamber.

Safe in utilization for ensureing, internal-combustion engine is placed on the car, and oxygen cylinder keeps flat and locks and is installed in the car trunk.

Combined control valve is solenoid valve or hand control valve or foot valve; Hand control valve or foot valve can be subjected to electromagnetic valve.For handiness, can be with hand control valve or foot valve and manual accelerator control or foot treadle interlock, and be subjected to the electromagnetic valve of Electrical key control and the control that is subjected to electric dummy cell.

Be optimized project, the effect that obtains, the primary condition that should possess according to people's requirement and internal-combustion engine is selected, add the oxygen supply control principle machinery type control, electronic equipment control and multi-point injection control are arranged, concrete formation can take simple mixer and flow control valve to realize machinery control, also can utilize microprocessor to cooperate pressure regulator control, perhaps utilize oxygen control module single-point discharge technology and take the multi-point injection technology.

Compared with prior art, be fitted with by internal-combustion engine can be according to the oxygenation mechanism of the combination property of internal-combustion engine and operating mode control oxygenation thereof for the utility model; Oxygenation mechanism comprises oxygen cylinder assembly, reduction valve, oxygen gauge, combined control valve, ECU (Electrical Control Unit) and the connecting pipeline that is connected; Exhaust manifold is communicated with outlet pipe and exhaust gas control valve, and exhaust gas control valve divides two-way, and one road flue gas leading is communicated with suction tude, and another road connects ECU (Electrical Control Unit) through oxygen concentration sensor.Under the prerequisite that guarantees combustion engine powered property, control approach and the method different have been taked with the fuel fuel feeding, to the formation of mixed gas with catch fire, burn, and the whole circulation process in being emitted on applies favorable influence, can be when reducing fuel consumption, improve the emission performance of internal-combustion engine, reach the purpose of achieving many things at one stroke.The utility model can comprehensively improve power character, Economy, emission performance and the smoothness of operation of internal-combustion engine.

Description of drawings

Fig. 1 is the utility model embodiment's a working principle schematic representation;

Fig. 2 is that Fig. 1 is to petrol engine oxygenation reconstruction structure schematic representation;

Fig. 3 is that Fig. 1 is to diesel engine oxygenation reconstruction structure schematic representation;

Fig. 4 is that Fig. 1 is to hcci engine oxygenation reconstruction structure schematic representation.

Embodiment

Below in conjunction with embodiment the utility model is described in further detail.

Fig. 1 is to shown in Figure 4, a kind of automobile-used oxygenation type internal combustion engine, include the internal-combustion engine of intake manifold 18, firing chamber, exhaust manifold 2, it has between open cycle and closes comprehensive endless form between the circulation, and be fitted with can be according to the combination property of internal-combustion engine 1 and the oxygenation mechanism 11 of operating mode control oxygenation thereof.Though automobile-used oxygenation type internal combustion engine 1 still is working medium with the air, but after the oxygen supply of adding gas 13 has been arranged, will has open cycle and close circulation, and between the circulation between the two.Internal-combustion engine 1 adds oxygen supply gas 13 may command and connects to the air fuel ratio of oil nozzle chamber 28 mixed gass 22; Mixed gas 22 is communicated to cylinder respectively with the intake duct that adds oxygen supply gas 13, and is separated with dividing plate 27 along described intake duct; Able to turn on or off described mixed gass 22 of the intake valve 26 of internal-combustion engine 1 and add the suction port of oxygen supply gas 13 to oil nozzle chamber 28.

Combined control valve 9 is solenoid valve or hand control valve or foot valve; Hand control valve or foot valve can be subjected to electromagnetic valve.For handiness, can be with hand control valve or foot valve and manual accelerator control or foot treadle interlock, and be subjected to the electromagnetic valve of Electrical key control and the control that is subjected to electric dummy cell 10.Combined control valve 9 and ECU (Electrical Control Unit) 10 add the supply IC engine supply 1 of oxygen supply gas 13 according to equipment working condition control, and may command mixed gas 22 is in the rate of flame propagation of internal-combustion engine 1 combustion chambers burn, thereby have controlled the speed and the degree of perfection of burning.

Oxygenation mechanism 11 comprises oxygen cylinder assembly, reduction valve 7, oxygen gauge 8, combined control valve 9, ECU (Electrical Control Unit) 10 and the connecting pipeline that is connected, and can adopt oxygen inhalation mode or spray oxygen mode to be transported to internal-combustion engine 1 when adding oxygen supply gas 13; Oxygen cylinder assembly in the oxygenation mechanism 11 and connecting pipeline have been convenient to change a bottle supplemental oxygen for removably connecting; The oxygen cylinder assembly is matched oxygen cylinder 4, cylinder valve 5 and safety valve 6.The air fuel ratio that adds oxygen supply gas 13 may command internal-combustion engines 1 mixed gas 22 of oxygenation mechanism 11, and the local anoxic in may command internal-combustion engine 1 cylinder-in oil-jet when burning comprise the local anoxic before and after catching fire.

Exhaust manifold 2 is communicated with outlet pipe 3 and exhaust gas control valve 16; 16 fens two-way of exhaust gas control valve, one road flue gas leading 15 is communicated with suction tude 12, and another road connects ECU (Electrical Control Unit) 10 through oxygen concentration sensor 14; Exhaust manifold 2 can be communicated with outlet pipe 3 by emission control 19, also can pass through turbosupercharger 24, emission control 19 is communicated with outlet pipe 3, and this turbosupercharger 24 one tunnel is communicated with outlet pipe 3 through emission control 19, and another road is communicated with suction tude 12 through intercooler 23; Can be communicated with closure 21 between intake manifold 18 and suction tude 12, closure 21 effects are flows of control mixed gas 22.Closure also can be directly and foot valve interlock control add the oxygen supply supply.

Of the present utility model according to condition, add oxygen supply process and working principle:

According to condition: in the evolution of internal-combustion engine, existing technology of gasoline engine dieselization, there is diesel engine to draw technology of gasoline engine again, until the hcci engine that combination is arranged, by lean burn technology and stratified combustion, fuel feeding and all problems that mixes have almost been solved, but the deficiency that has the burning or the aspect that catches fire all the time, because air supplied does not have substantial variations, though natural aspiration is improved charging efficiency, and then take the supercharging technology measure, but all be the quantity that improves air, do not change wherein concentration of oxygen, so mix, there is deficiency in burning with discharging, need overcome with the way of oxygenation.Therefore, oxygenation mechanism 11 oxygenations are with good conditionsi, should be according to the combination property of internal-combustion engine, and internal-combustion engine and equipment working condition actual demand thereof with can perfect combustion, and not be wasted and are added oxygen supply gas 13 and be standard.

The main distinction of automobile-used oxygenation type internal combustion engine and other internal-combustion engine has been to add the oxygen supply process, and can include in the whole microcomputer management system, determines to add oxygen supply gas 13 supplys according to the equipment working condition actual demand.According to the requirement of equipment working condition to combustion engine powered property, when the internal-combustion engine middling speed, because good economy performance and need not oxygenation, when idling, acceleration and high speed, because of a large amount of oil spouts in mixed gas overrich or the cylinder, implement a large amount of oxygenations and improve velocity of combustion rapidly, to guarantee perfect combustion and to reduce waste-heat loss relatively; And when low speed and high speed, more oil spout in the denseer or cylinder is only carried out a small amount of oxygenation with suitable raising velocity of combustion because of mixed gas, guarantees perfect combustion and corresponding minimizing waste-heat loss.According to the engine performance difference,, can lack oxygenation to gasoline engine and diesel engine to dense combustion petrol engine oxygenation in a large number; And supercharged engine added oxygen when the supercharging poor efficiency, few oxygenation or oxygenation not when efficient; And, then take air inlet oxygenation or layering oxygenation to the homogeneous charge compression ignition motor.

Add the oxygen supply process: industrial oxygen is provided by oxygen installation and oxygen station, also can be in the operation by the gas station for confession, 11 in oxygenation mechanism will add oxygen supply gas 13 on its place equipment, be transported in the internal-combustion engine 1 air inlet inlet 17, specifically when oxygen supply, can or spray the oxygen mode by oxygen inhalation mode, and spray oxygen carries out in cylinder or outside the cylinder, finally, determine to add oxygen supply gas 13 supplys, and institute's oxygen supply gas can access constantly additional according to equipment working condition is actual all by combined control valve 9 and ECU (Electrical Control Unit) 10.In actual cycle, can make by the way of changing oxygen cylinder 4 to add oxygen supply gas 13 and obtain constantly replenishing, and each oxygen supply gas 13 weight that add of replenishing are restricted, to guarantee the needs on the safety and to alleviate the needs of quality on energy-conservation.

Working principle: require under the prerequisite in internal-combustion engine 1 certain power character, adding oxygen supply gas 13 at first makes to catch fire reliable assurance has been arranged, the two-part that will catch fire and burn have simultaneously been formed a complete combustion process, and accelerated the speed of flame propagation, the speed and the degree of perfection of burning have been controlled, not only improve velocity of combustion and guaranteed power character, and correspondingly reduced oil consumption and have Economy, also emission performance and smoothness of operation have been produced favourable influence.

In Fig. 1, automobile-used oxygenation type internal combustion engine includes the internal-combustion engine 1 of intake manifold 18, firing chamber, exhaust manifold 2.Concerning internal-combustion engine 1, because the space that combustion process takes place is very limited, and the time that each combustion process continues is very of short duration, in air, add under the certain situation of oxygen supply gas concentration, accelerating velocity of combustion just becomes the necessary condition of lean burn technology and implements the basis, though take the accurately emitted dose of the various operating mode gasoline of control of electric jet technology, the perfect combustion so that gasoline is tried one's best, cooperate time of ignition with electron controls technology simultaneously, make the fuel process controlled as far as possible, to reduce the discharge amount of petrol engine, but still have combustion process carry out very incomplete situation, need to adopt emission control systems 19 such as triple mode catalytic converter through requisite measure, with further reduction discharging, but can not improve power character like this and improve Economy.And when idling, low speed and acceleration, the oil consumption increase discharges pollutants and increases, and the air quantity deficiency all is described, the whole anoxic of mixed gas need be with adding oxygen supply gas 13 with fuel " oiling ", burning " igniting ", speed and degree of perfection that common control is burnt.

Add power performance and economic performance that oxygen supply gas can improve internal-combustion engine.Because the thermodynamic cycle of internal combustion engine process, by the two big factor decisions of working medium in circuit thermal procession and the cylinder, the power and the torque that will improve internal-combustion engine had so both depended on the fuel quantity that enters cylinder, also depended on the air quantity that enters cylinder; Minimum because of the shared volume of, normally used liquid fuel again, then mainly be subject to the air quantity that enters cylinder, be the oxygen supply that adds that is subject to wherein in fact.In addition internal-combustion engine is converted to the process of effective output work from the chemical energy of fuel, is the link of decision engine power performance and Economy most critical.If require combustion process rapid, timely, complete, just be unable to do without the effect of oxygen.Therefore, improve the power character of internal-combustion engine, except that taking increase technology, increasing supply of fuel, adding oxygen supply gas 13 is a kind of direct effective way equally.

In Fig. 2, emission control systems 19, mixing tube 20, closure 21 and air inlet inlet 22 have compared to Figure 1 been increased.Modern gasoline machine oxygenation is transformed, need only pass through oxygenation mechanism 11, with the oxygen in the oxygen cylinder 4, through the solenoid valve in cylinder valve 5, safety valve 6, reduction valve 7, the combined control valve 9, hand control valve, foot valve control, and ECU (Electrical Control Unit) 10 is further controlled, can in time be fed in right amount in the air inlet inlet 17, change air fuel ratio by a relatively large margin, directly improve concentration of oxygen in the mixed gas with pure oxygen, accelerate velocity of combustion and guarantee that power character, raising degree of perfection guarantee that Economy, minimizing pollutant guarantee emission performance, reach the purpose of achieving many things at one stroke.Be optimized project, the Economy that obtains, the primary condition that should possess according to people's requirement and internal-combustion engine 1, select electronic equipment control and multi-point injection control, concrete formation can utilize microprocessor to cooperate pressure regulator control, perhaps utilizes oxygen control module single-point discharge technology and takes the multi-point injection technology.In the suction tude 12 air through with add that oxygen supply gas 13 mixes after mixing tube 20, flow to closure 21, under the certain situation of closure 21, add oxygen supply gas 13 and will make that oxygen increases in the outlet pipe 3, but measure and control through oxygen sensor 14, the oxygen that is increased might not make total nitride increase.

Add economic performance and emission performance that oxygen supply gas can improve the modern gasoline machine.According to the combustion radicals present principles as can be known, internal-combustion engine is a kind of high-velocity combustion phenomenon, and premixed combustion and diffusive combustion are two kinds of the most basic combustion manners of internal-combustion engine, also be petrol engine with diesel engine in many-sided different basic reason such as combustion characteristic, discharge pollutants generation and control mechanism, power character, Economy and noise and vibration.But the Economy of internal-combustion engine depends primarily on its combustion process, need to shorten the time that combustion process continues, and rate of flame propagation has been accelerated in oxygen supply, and nature can improve Economy.

In Fig. 3, comparing with Fig. 1, Fig. 2 has increased intercooler 23, turbosupercharger 24.The most scabrous problem of diesel engine is particle PM discharging and nitride NOx discharging, also has the smoothness of operation problem in fact simultaneously.Though the stationarity of modern diesel engine running can take fuel injection together the rail technology improve, and diffusive combustion is oxygen-enriched combusting, seeming need not oxygen supply.But combustion manner is still petrol engine and diesel engine in many-sided different basic reason such as combustion characteristic, discharge pollutants generation and control mechanism, power character, Economy and noise and vibration.Be exactly petrol engine when adopting the in-cylinder injection fuel feeding, in also the same with diesel engine the discharging particulate matter arranged, and stationarity changes to some extent, just this variation is not too obvious.

Though the local anoxic of reason causes, in fact anoxic caused the part to catch fire difficulty, particularly rate of flame propagation are low that burning can't be gone on.Excessive because of air in the whole combustion process, obviously be difficult to deal with problems with the air excess way, need in time to add oxygen supply gas 13 in right amount in cylinder, the same as with fuel oil each cylinder distributed uniform, can correspondingly solve the problem of diesel engine.At this moment can there be certain variation in oxygenation mechanism 11 with the firing chamber, can adopt lean burn technology or stratified charge system oxygen uptake on the one hand, also can select single-point or multiple spot spray oxygen on the other hand,, and require to implement accurately to control by oxygenation mechanism 11 with local oxygen concentration and uniformity coefficient in the raising cylinder.The modern diesel engine emission controls by improving combustion also comprises pressurized machine 24 and intercooler 23, and the outer measure of machine also has emission control systems 19.In the suction tude 12 air through with add that oxygen supply gas 13 mixes after mixing tube 20 flow to air inlet and enters the mouth 17.

Add emission performance and smoothness of operation that oxygen supply gas can improve modern diesel engine.Usually carbon monoxide, hydrocarbon, and the condition that generates of soot all relevant with anoxic, as if nitride is the same with smoothness of operation can not solve with the way that adds oxygen supply gas, nitride is not the direct product of combustion process in fact, but in the high temperature period of burning, airborne oxygen in firing chamber and nitrification form.In the industrial oxygenerating process, oxygen liquefaction earlier obtains, and does not just have nitrogen at all, makes that adding oxygen supply gas itself has just reduced emitting nitride, if all be oxygen in the air inlet, does not just exist because of air forms the nitride problem so.In addition, fuel supplying difference, the amount of carbon dioxide that burning generates are also different.

In Fig. 4, compare with Fig. 1, Fig. 2, Fig. 3, increased description to Fig. 4 (1), Fig. 4 (2), Fig. 4 (3), Fig. 4 (4), it has exhaust valve 25, intake valve 26, dividing plate 27, oil nozzle chamber 28 in forming, adds oxygen condition 29, boss 30.Homogeneous charge compression ignition burning hcci engine comprises the use clean fuel, because the combustion process of mixed gas 22 in motor, the performance and the discharging of motor is had material impact.If, the endurance of combustion process is long, the Economy of motor and power character will descend, need the big and propagation distance weak point of rate of flame propagation, add the air fuel ratio of oxygen supply gas 13 so with regard to may command mixed gas 22, concentration of oxygen in the special raising oil nozzle chamber 28, elimination contains the situation that oxygen reduces relatively because of fuel increases, and the problem of rate of flame propagation minimum after rock gas and the air Mixture, when favourable solution hcci engine forms at mixed gas 22, control ignition enlarges the problem that aspects such as load operation scope and cold start-up exist constantly.The formation of concrete mixed gas and the process of burning can obtain by the variation of oil nozzle chamber 28 oxygen states 29 understanding, and make the homogeneous charge compression ignition hcci engine that burns, and becoming needs the internal-combustion engine that purifies hardly.

Used stratified charge system, in order to use weak mixture, to save fuel oil and purifying exhaust gas, though stratified charge is the main means of lean combustion, it then is crucial weak mixture fight rapid burning.Forming aspect the multiple-spark ignition energy, we can say that the spark plug of high energy high frequency is stronger, per second can have 1600 sparks, however that the compression oil spout is caught fire is stronger, can form 107 fire nuclears, obviously selects the compression oil spout to catch fire best.Two-layer combustion engine with stratified charge is an example, and suction tude is divided into two intake ducts by dividing plate 27, and a part is advanced mixed gas 22 separately, and another part advances to add oxygen supply gas.Layering input during air inlet adds oxygen supply gas 13 and enters cylinder along oxygen inlet, is full of that part of volumes below the oil nozzle chamber 28.The mixed gas 22 of input enters in the cylinder away from 28 places, oil nozzle chamber along the mixed gas intake duct.Though mixed gas produces eddy current during air inlet, because incoming mixture is a layer distributed, so can remain to a certain extent till the compression end.The oil spout instancy of ignition forms extremely rare oxygenation inflammable mixture in the oil nozzle chamber 28, the weak mixture in no oil nozzle chamber 28 still is the mixed gas of certain excess air coefficient.In the two-stage stratified mixture combustion starts, during first-stage burning, the mixed gas compression autoignition of oxygenation, and the high temperature in circulation, high pressure, burn under at a high speed.Still the overwhelming majority of unburned mixed gas enters no oil nozzle chamber by the oil nozzle chamber.This moment, the mixed gas composition that do not have changed in oil nozzle the chamber in, and formed the localized rich mixed gas herein, so that be easier to fire burns, and the acceleration weak mixture in second chamber that burnouts.

Add oxygen supply gas and can satisfy internal-combustion engine development in future needs.At present, petrol engine has been realized dieselization by lean burn technology, adds ripe post-processing technology, when making power improve 5% to 10%, fuel consumption has descended 5% to 10%, and exhaust contaminant reduces more than 90%, minimum discharge and zero-emission gasoline car occur; Diesel engine has then also adopted the electric-controlled injection technology after mechanical atomization and supercharging technology, and people have regarded the electric-controlled injection technology as since diesel engine comes out the 3rd milestone, the diesel engine of band advanced control system also occurred.Also have, the hcci engine of homogeneous charge compression ignition, research shows, not only has the higher thermal efficiency, can be suitable for pluralities of fuels such as gasoline, diesel oil, liquefied petroleum gas (LPG) and rock gas, can also reduce even reach no particulate emission, and significantly reduce emitting nitride, under some operating mode,, also can satisfy more and more stricter Abgasgesetz without catalyzer.Homogeneous charge compression ignition burning hcci engine, oxygenation stratified mixture combustion scheme can have various ways, but except that single combustion chamber double combustion chamber also.

In a word, from the petrol engine to the diesel engine, and the development hcci engine, but there are the burning or the aspect problem of catching fire, need oxygenation to overcome.Certainly, realize this control target, need improve constantly the Comprehensive Control level, utilize the microcomputerized control technology, realize people's pursuit.Finally need oxygenation mechanism by adding oxygen supply gas 13, with fuel " oiling ", burning " igniting ", the speed and the degree of perfection of burning have been controlled jointly, local anoxic when comprising the control burning, and the local anoxic before and after the homogeneous charge compression ignition, not only meet the combustion radicals present principles, and satisfied the sufficient and necessary condition of burning, can comprehensively solve the conspicuous contradiction between combustion engine powered performance, economic performance, emission performance and the smoothness of operation, comprise that emphasis solves the problem of combustion engine energy-saving and discharging.

The utlity model has following characteristics: the one, add power performance and economic performance that oxygen supply gas can improve internal-combustion engine; The 2nd, add economic performance and emission performance that oxygen supply gas also can improve internal-combustion engine; The 3rd, add oxygen supply gas and satisfied internal-combustion engine development in future needs; The 4th, low to the improvement expenses of gas internal-combustion engine, help popularizing; The 5th, possess the essential condition in " gas, car, stand " three big key elements; The 6th, meet country's " cleaning vehicle action plan of air purification engineering ", can satisfy the urgent needs that require energy-conserving and environment-protective of people.

Most preferred embodiment of the present utility model is illustrated, and various variations or the remodeling made by those of ordinary skills can not break away from scope of the present utility model.

Claims

1, a kind of automobile-used oxygenation type internal combustion engine, include the internal-combustion engine (1) of intake manifold (18), firing chamber, exhaust manifold (2), it is characterized in that: described internal-combustion engine (1) is fitted with can be according to the combination property of internal-combustion engine (1) and the oxygenation mechanism (11) of operating mode control oxygenation thereof; Described oxygenation mechanism (11) comprises oxygen cylinder assembly, reduction valve (7), oxygen gauge (8), combined control valve (9), ECU (Electrical Control Unit) (10) and the connecting pipeline that is connected; Described exhaust manifold (2) is communicated with outlet pipe (3) and exhaust gas control valve (16), and described exhaust gas control valve (16) divides two-way, and one road flue gas leading (15) is communicated with suction tude (12), and another road connects ECU (Electrical Control Unit) (10) through oxygen concentration sensor (14).

2, a kind of automobile-used oxygenation type internal combustion engine according to claim 1, it is characterized in that: oxygen cylinder assembly in the described oxygenation mechanism (11) and connecting pipeline are for removably connecting; Described oxygen cylinder assembly is matched oxygen cylinder (4), cylinder valve (5) and safety valve (6).

3, a kind of automobile-used oxygenation type internal combustion engine according to claim 1 and 2, it is characterized in that: described exhaust manifold (2) is communicated with emission control (19); Be communicated with closure (21) between described intake manifold (18) and the described suction tude (12).

4, a kind of automobile-used oxygenation type internal combustion engine according to claim 1 and 2, it is characterized in that: described exhaust manifold (2) is communicated with turbosupercharger (24), this turbosupercharger (24) one tunnel is communicated with described outlet pipe (3) through emission control (19), and another road is communicated with suction tude (12) through intercooler (23); This turbosupercharger (24) also is communicated with suction tude (12).

5, a kind of automobile-used oxygenation type internal combustion engine according to claim 1 is characterized in that: the intake duct that adds oxygen supply gas (13) of described internal-combustion engine (1) is communicated to cylinder respectively, and is separated with dividing plate (27) along described intake duct; The able to turn on or off described mixed gas of intake valve (26) (22) of described internal-combustion engine (1) and add the suction port of oxygen supply gas (13) to oil nozzle chamber (28).

6, a kind of automobile-used oxygenation type internal combustion engine according to claim 2, it is characterized in that: described internal-combustion engine (1) is placed on the car, and described oxygen cylinder (4) keeps flat and locks and is installed in the described car trunk.

7, a kind of automobile-used oxygenation type internal combustion engine according to claim 4 is characterized in that: described combined control valve (9) is solenoid valve or hand control valve or foot valve; Described hand control valve or foot valve can be subjected to electromagnetic valve.