CN1287219A - Supply device for emulsion fuel - Google Patents
Supply device for emulsion fuel Download PDFInfo
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- CN1287219A CN1287219A CN00118789A CN00118789A CN1287219A CN 1287219 A CN1287219 A CN 1287219A CN 00118789 A CN00118789 A CN 00118789A CN 00118789 A CN00118789 A CN 00118789A CN 1287219 A CN1287219 A CN 1287219A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D1/00—Controlling fuel-injection pumps, e.g. of high pressure injection type
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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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- Combustion & Propulsion (AREA)
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- Output Control And Ontrol Of Special Type Engine (AREA)
- Fuel-Injection Apparatus (AREA)
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Abstract
A supply device for emulsion fuel includes a fuel tank 10, an injection valve 11, a compression circulating pump 12, an injection pump 42 for controlling oil quantity, a control part 13, a mixer 14 and a water pump 15. In the supply device for emulsion fuel, by setting an intended water addition rate capable of reducing NOx and suppressing misfire, water quantity supplied to the mixer can be controled based on the intended addition rate. The control part performs PID control to change control parameters based on the command water addition rate, thus it is possile to control speed in an engine the same as operation only with oil. Accordingly, NOx is reduced, and probability of the misfire is depressed, and the engine speed can be controlled regardless it is emulsion fuel or oil.
Description
The present invention relates to provide the device of the emulsion fuel that uses in order to reduce the nitrogen oxide that is included in the exhausting air (below, be called NOx) to diesel engine.
One of known method as the NOx in the exhausting air that reduces diesel engine has the method for using emulsion fuel.When the use of this emulsion fuel, there are many problems, below show several technology related with this problem.
(1) open on flat 9-317587 number the open communique spy of Japan's patent application, the instruction that discloses the change emulsion fuel adds the technology of water rate.This is to change the actual technology that adds the water rate accordingly with NOx.
(2) technology of record is on No. the 2561820th, Japan's patent, the sensor of the ratio that detects the water in the emulsion fuel is set, by adjusting fuel-injection pump accordingly with the testing result of this sensor, the ratio of the water in the based on fuel is carried out the supply of the fuel of optimised quantity.
(3) technology of opening record on clear 59-33392 number the open communique spy of Japan's patent application is, has to make the circulation loop that returns the emulsion fuel feed path from the residual fuel of engine once more.
(4) when the starting of diesel engine,, only provide oil in order to prevent misfire (can not light a fire).In having the diesel engine of circulation loop, can not change into immediately and only supply with oil.As ways of addressing this issue, there is the open communique spy of disclosed Japan patent application to open flat 6-159149 number.The technology that baffle-box is set is wherein disclosed.
The term of Shi Yonging is defined as following implication in this manual.
The definition of term
Add the water rate: (water yield W/ oil F) * 100
Instruction adds the water rate: add the water rate by the control section instruction
Target adds the water rate: add the water rate based on what the optimum of the situation of engine reduced NOx.
Retard time: the emulsion fuel that generates in mixer is to the time of injection valve.It is the timing of metering change Control Parameter.
Stabilization time: add the water rate after changing in instruction, outburst energy changing engine speed also changes.This changes the feedback control correction by control section.Be that this revises the needed time so-called stabilization time.
Actual water injection rate: the actual water yield that is sent in the mixer.(from the value of the flowmeter of water lines, perhaps, the output quantity of water pump detects)
Instruction water injection rate: in subroutine, calculate, water system is sent the value of the water yield of the instruction of delivering to mixer.
The actual water rate that adds: the water rate that adds of the actual emulsion fuel that generates (actual amount of water, according to the amount of water that newly adds and oil, and try to achieve by the amount of water from the emulsion fuel (residual fuel) that circulation loop returns and oil in mixer.)
Switch fast: be the supply that outside preset program, stops oil emulsion rapidly, the situation of oil running only is provided.(emulsion fuel is because might misfire when when starting and low-speed running, so owing to do not want to use when stopping machine, wish that consumption in advance comprises emulsion fuel in the circulation loop at interior emulsion fuel.)
Actual oil mass: the new oil mass of sending here from oil pump.(from the value of the flowmeter of oil pipe line, the output quantity of oil, detecting) with pump
Residual fuel: the emulsion fuel that returns from circulation loop.This amount is used the value of the flowmeter of circulation loop, perhaps deducts the value of the amount that consumes jet pump (position or engine speed by the tooth bar of regulator are calculated, and perhaps calculate from the value of this two aspect) from the amount (output quantity of petrolift) that is sent to jet pump.The actual water rate that adds of residual fuel is the value that adds water rate sensor of circulation loop, and the instruction of (though be sent to jet pump does not use and when becoming residual fuel) added water rate (the actual water rate that adds) when perhaps residual fuel generated.
The upper limit adds the water rate: do not cause the rate of water the most greatly of misfiring.
Spy in above-mentioned (1) opens the technology that goes up record for flat 9-317587 number, has in the equipment of load change at marine engine etc., exists in the actual water rate that adds when high, when perhaps engine speed is low, if be transformed into high load then might cause the problem of misfiring.
The application's the 1st goal of the invention is to provide a kind of emulsified fuel feeder, and it can reduce the possibility of misfiring when being used for the engine of load variations.
There is following problem in No. 2561820 communique of the Japan Patent of above-mentioned (2), when turning round with emulsion fuel, if with and the emulsion fuel measured equally during only with the oil running be ejected in the engine, for example, when promoting engine speed, because include water in emulsion fuel, the increasing amount of the increasing amount of oil than usually only with oily the running time lacked, so it is the acceleration of engine speed is slow, poor to the followability of instruction rotating speed.
The 2nd goal of the invention is to provide a kind of emulsified fuel feeder, and it is no matter be emulsion fuel, oil, similarly the Control Engine rotating speed.
The spy of above-mentioned (3) opens disclosed technology clear 59-33392 number, in such device,, can not hold the amount of returning of self circular loop because want to change the actual water rate that adds, so existing can not the actual water rate that adds of control break, can not add the problem of water rate according to the situation control of engine.
The 3rd goal of the invention is to provide a kind of emulsified fuel feeder, and it can control the actual water rate that adds in the emulsion fuel circulatory system.
The spy of above-mentioned (4) opens described technology flat 6-159149 number, because baffle-box need be set in addition, so there is the problem of thinking hard anxiety in order to ensure space and configuration.
The 4th goal of the invention is to provide a kind of emulsified fuel feeder, and it does not need to be provided with separately baffle-box in emulsion fuel circuit system, just can make emulsion fuel avoid common fuel supply circuit.
Unusual when taking place in water system etc., actual adding under the out of contior situation of water rate,, the supply that stops water only being turned round by oil.At this moment, in having the device of circulation loop, run out of the emulsion fuel that is present in this circulation loop, better than making it make a concession baffle-box etc.This is because if emulsion fuel is placed for a long time, then oil and water separation reuse the cause of the difficulty that becomes.But,, might cause the problem of misfiring if the actual water rate height that adds of the emulsion fuel in the circulation loop then exists in when consuming it.
The purpose of the 5th and the 6th invention is to provide a kind of emulsified fuel feeder, and it can not cause and misfire when water system is unusual, can consume the emulsion fuel in the circulation loop as much as possible.
Actual when adding the water rate what change emulsion fuel, be included in the ratio increase and decrease of the water in the emulsion fuel, therewith the ratio of increase and decrease oil accordingly.Produced the problem that causes the engine speed variation because of the outburst energy changing thereupon.No. 2561820 disclosed method of Japan's patent that above-mentioned (2) are arranged as the method that addresses this is that.The disclosed device of this patent uses the permittivity sensor, but small because of the change of the permittivity that causes because of the actual change that adds the water rate, so it is not necessarily high to add the testing precision of water rate, has the big problem of regulating error of emulsion fuel.
The 7th goal of the invention is to provide a kind of emulsified fuel feeder, and it is actual when adding the water rate what change emulsion fuel, can reduce the variation of engine speed.
In traditional technology, actual when adding the water rate what change emulsion fuel, for example, in the described technology of Japan's patent of above-mentioned (2), if increase substantially the actual water rate that adds, the amount that then is included in the water in the emulsion fuel is increased sharply, and You amount falls sharply in contrast.Thereupon, existence causes the problem that engine speed changes significantly because of the outburst energy changing.
The application's the 8th goal of the invention is to provide a kind of emulsified fuel feeder, and it is actual when adding the water rate what change emulsion fuel, can reduce the variation of engine speed.
The emulsified fuel feeder of the application's the 1st scheme comprises: fuel tank, and it is used for oil in reserve; Injection valve, it is used for spraying oil in cylinder; The pressurizing circulation pump, it is used for oil pressure is delivered to injection valve; Jet pump, it is used for controlling the oil mass that ejects from injection valve; Control section, it is used for controlling jet pump; Mixer, it is set at and is used for miscella and water between jet pump and the fuel tank; And water pump, providing water to mixer, this emulsification supplier is characterised in that:
According to the state of engine, perhaps, load condition is set in the target that can reduce the possibility of misfiring when reducing NOx and adds the water rate, adds the water rate according to this target, and control offers the water yield (claim 1) of mixer.
By adopting such formation, just can be when reducing NOx, the phenomenon of misfiring the when engine that is reduced in load variations uses.
In above-mentioned the 1st scheme (claim 1), can add the water rate to above-mentioned target and set change at above-mentioned load for when big, hour also lower than above-mentioned load change.Perhaps, can add the water rate to above-mentioned target sets for when engine speed is low, when higher than engine speed low (claim 2).In the change of load when big, when perhaps engine speed is low, because the possibility of misfiring is big, so add the water rate and just can reduce and misfire by setting low target.Be arranged to when the possibility of misfiring is significantly low, improve the actual water rate that adds, seek to reduce NOx.
The emulsified fuel feeder of the 2nd scheme comprises: fuel tank, and it is used for oil in reserve; Injection valve, it is used for spraying oil in cylinder; The pressurizing circulation pump, it is used for to the injection valve pressure oil; Jet pump, the oil mass that control is sprayed from injection valve; Control section, the control jet pump; Mixer, it is set at and is used for miscella and water between jet pump and the fuel tank; And water pump, providing water to this mixer, this emulsified fuel feeder is characterised in that:
Above-mentioned control section carries out PID control (proportion integration differentiation control-Proportional-plus-Integral-plus-Derivative Control), by the emulsion fuel running time, add the water rate according to instruction and change Control Parameter (parameter), make engine speed add and subtract (claim 3) the samely with situation about only turning round with oil.
If adopt this formation, then act as a fuel, when no matter being to use emulsion fuel, when also being to use oil, Control Engine rotating speed similarly.That is, for example, even improve engine speed because be included in the amount of the oil in the emulsion fuel of increase and similarly increase during only by the oil running, so can with the same control that improves engine speed of situation of only turning round with oil.
In above-mentioned the 2nd scheme (claim 3), also can be arranged to add the formation (claim 4) that the water rate changes above-mentioned Control Parameter according to actual.When generation is unusual in water system, for example, change engine speed if reduce actual adding under the low state of water rate at water output, then add according to instruction increasing amount that the water rate changes oil among the Control Parameter generally more than, the change of engine speed is also bigger than common situation.By setting Control Parameter according to the actual water rate that adds, just can be when water system be unusual, the same ground Control Engine rotating speed when common.
In above-mentioned the 2nd scheme (claim 3, perhaps claim 4) in, can be arranged to so change Control Parameter, make that the oil mass that is comprised in the emulsion fuel all becomes identical (claim 5) no matter above-mentionedly actually add the water rate or above-mentioned instruction adds any variation of water rate.As the variation of Control Parameter, preestablish with actual and add the water rate or instruction adds the corresponding Control Parameter of water rate, each is actually added water rate or instruction and add the water rate and select Control Parameter.In addition, owing to add water, under the situation that the thermal efficiency reduces, consider that this minimizings setting adds the corresponding Control Parameter that water rate or instruction add the water rate and gets final product with actual.
Other controlling method has, and so changes Control Parameter, makes when turning round in emulsion fuel, and on only with the Control Parameter under the situation of oil running, allocation packet is contained in the ratio of the oil in the emulsion fuel, makes oil mass certain.
In addition, also can be arranged to the change of above-mentioned Control Parameter, when above-mentioned actual fuel after adding the water rate and changing is in jet pump is ejected into cylinder, carry out (claim 6).By adjusting the timing that changes Control Parameter, just can make the state when operating condition is further approaching only uses the oil running.
The emulsified fuel feeder of the 3rd scheme comprises: fuel tank, and it is used for oil in reserve; Injection valve, it is used for spraying oil in cylinder; The pressurizing circulation pump, it is used for to the injection valve pressure oil; Jet pump, the oil mass that control is sprayed from injection valve; Control section, the control jet pump; Mixer, it is set at and is used for miscella and water between jet pump and the fuel tank; And water pump, providing water to this mixer, this emulsified fuel feeder is characterised in that:
Possesses the circulation loop of the residual fuel of jet pump being delivered to the mixer prime, the amount detection machine structure of the amount that detects above-mentioned residual fuel is set, adds from the amount of above-mentioned residual fuel and actual oil mass, the instruction that adds the water rate, newly delivers to mixer and calculate the water yield (claim 7) that will increase newly the water rate from fuel tank.
By adopting this formation, in emulsion fuel circuit system, can hold the amount of returning, control the actual water rate that adds.
In this case, above-mentioned amount detection machine structure, can constitute with the flow sender that is arranged on the above-mentioned circulation loop, perhaps, by the amount of the emulsion fuel of calculating consumption from the output or the engine speed of above-mentioned control section, the arithmetic element of amount that deducts the emulsion fuel of consumption from the flow that is sent to above-mentioned jet pump constitutes (claim 8).
In addition, the actual water rate that adds of above-mentioned residual fuel, instruction in the time of also can being arranged to use remaining emulsion fuel to generate adds water rate or the actual water rate that adds, and perhaps, adds the detected actual water rate (claim 9) that adds of water rate detector by being arranged on the above-mentioned circulation loop.Newly deliver to the oil mass of mixer, use the signal of the flow sender of oil pipe line, perhaps, the output quantity of pressurizing circulation pump is measured.Be sent to the amount of the emulsion fuel of jet pump, measure by flow sender is set on the pipeline of emulsion fuel.
The emulsified fuel feeder of the 4th scheme comprises: fuel tank, and it is used for oil in reserve; Injection valve, it is used for spraying oil in cylinder; The pressurizing circulation pump, it is used for to the injection valve pressure oil; Jet pump, the oil mass that control is sprayed from injection valve; Control section, the control jet pump; Mixer, it is set at and is used for miscella and water between jet pump and the fuel tank; And water pump, providing water to this mixer, this emulsified fuel feeder is characterised in that:
Possess the circulation loop that the residual flow of above-mentioned jet pump is connected to the prime of mixer, form the emulsion fuel that can make in this circulation loop and keep out of the way (claim 10) in the water lines.
If adopt this formation, then in emulsion fuel circuit system, do not need to be provided with separately baffle-box, emulsion fuel is kept out of the way.
When emulsion fuel is kept out of the way, stop by making water pump, perhaps make the block valve action, perhaps make the relief valve action make water all release the supply that stops water.This keeps out of the way control, when stopping, during low speed, use when the predetermined outer engine that waits of recoil (during the machine counter-rotating) is controlled.
The emulsified fuel feeder of the 5th scheme comprises: fuel tank, and it is used for oil in reserve; Injection valve, it is used for spraying oil in cylinder; The pressurizing circulation pump, it is used for to the injection valve pressure oil; Jet pump, the oil mass that control is sprayed from injection valve; Control section, the control jet pump; Mixer, it is set at and is used for miscella and water between jet pump and the fuel tank; And water pump, providing water to this mixer, this emulsified fuel feeder is characterised in that:
Possesses the circulation loop that the residual flow of above-mentioned jet pump is connected to the prime of above-mentioned mixer, actual when adding the water rate and can not control, stop the supply of water, and in the actual water rate that adds under the upper limit adds situation below the water rate, do not make the emulsion fuel of above-mentioned circulation loop keep out of the way ground, use this emulsion fuel (claim 11).
If adopt this formation, then when water system unusual, can consume the emulsion fuel in the circulation loop more, and can not cause and misfire.
The emulsified fuel feeder of the 6th scheme comprises: fuel tank, and it is used for oil in reserve; Injection valve, it is used for spraying oil in cylinder; The pressurizing circulation pump, it is used for to the injection valve pressure oil; Jet pump, the oil mass that control is sprayed from injection valve; Control section, the control jet pump; Mixer, it is set at and is used for miscella and water between jet pump and the fuel tank; And water pump, providing water to this mixer, this emulsified fuel feeder is characterised in that:
Possesses the circulation loop that the residual flow of above-mentioned jet pump is connected to the prime of above-mentioned mixer, actual when adding the water rate and can not control, in the supply that stops water, adjusting is imported into the amount of the residual fuel of above-mentioned mixer, makes the actual water rate that adds add below the water rate (claim 12) in the upper limit.
The emulsified fuel feeder of the 7th scheme comprises: fuel tank, and it is used for oil in reserve; Injection valve, it is used for spraying oil in cylinder; The pressurizing circulation pump, it is used for to the injection valve pressure oil; Jet pump, the oil mass that control is sprayed from injection valve; Control section, the control jet pump; Mixer, it is set at and is used for miscella and water between jet pump and the fuel tank; And water pump, providing water to this mixer, this emulsified fuel feeder is characterised in that:
Add water rate or actual when adding the water rate and changing in the instruction of emulsion fuel, add water rate or the actual water rate that adds according to above-mentioned instruction, above-mentioned control section increase and decrease injected emulsion fuel amount by above-mentioned jet pump, makes that the outburst energy is necessarily (claim 13).
If adopt this formation, then can be actual when adding the water rate what change emulsion fuel, reduce the variation of engine speed.
In this case, can be arranged to above-mentioned control section and increase and decrease the emulsion fuel amount that ejects by above-mentioned jet pump, make that the outburst energy is certain (claim 14) according to the actual water rate that adds.Because add water rate control, so the change of the engine speed can also reduce the water system fault time according to actual.
And then, can be arranged in above-mentioned instruction and add water rate or actual when adding the water rate and changing, the increase and decrease emulsion fuel makes that the amount of oil be necessarily (claim 15).
The emulsified fuel feeder of the 8th scheme comprises: fuel tank, and it is used for oil in reserve; Injection valve, it is used for spraying oil in cylinder; The pressurizing circulation pump, it is used for to the injection valve pressure oil; Jet pump, the oil mass that control is sprayed from injection valve; Control section, the control jet pump; Mixer, it is set at and is used for miscella and water between jet pump and the fuel tank; And water pump, providing water to this mixer, this emulsified fuel feeder is characterised in that:
When the target that reduces when optimum nitrogen oxide (NOx) adds the water rate and has been changed, make the actual water rate that adds add water rate (claim 16) near target gradually.
If adopt this formation, just can reduce the variation of change emulsion fuel actual engine speed when adding the water rate.
Fig. 1 is the summary pie graph of one embodiment of the invention.
Fig. 2 is the embodiment's of Fig. 1 the summary pie graph of variation.
Fig. 3 is the flow chart of main program part of effect that is used for the embodiment of explanatory drawing 1.
Fig. 4 is the flow chart of subroutine part of effect that is used for the embodiment of explanatory drawing 1.
Fig. 5 is the alter the procedure flow chart of part of the Control Parameter of effect that is used for the embodiment of explanatory drawing 1.
Fig. 6 is that the instruction of effect that is used for the embodiment of explanatory drawing 1 adds the flow chart that the water rate is adjusted program part.
Fig. 7 be used for explanatory drawing 1 embodiment effect retard time computer program part flow chart.
Fig. 8 is the flow chart of program part when being used for embodiment's effect unusual of explanatory drawing 1.
Fig. 9 is the flow chart of water filling rest schedule part of effect that is used for the embodiment of explanatory drawing 1.
Figure 10 is the flow chart of quick changeover program part of effect that is used for the embodiment of explanatory drawing 1.
The summary formation of one embodiment of the invention is illustrated among Fig. 1.This emulsified fuel feeder 1 is the example that is applicable to marine diesel engine engine 2, comprising: fuel tank 10, Fuelinjection nozzle 11, pressurizing circulation pump 12, control section 13, mixer 14, water pump 15 etc.
The fuel oil system at first is described, the fuel oil that fuel tank 10 stores is sent to oily circulation loop 17 via suction booster 16.Oil circulation loop 17 is the oily paths that make oil sequential loop in interflow device 18, pressurizing circulation pump 12, fuel heater 19, relief valve 20, and oil circulates under the effect of pressurizing circulation pump 12.Be provided with tributary circuit 21 between the fuel heater 19 of this oil circulation loop 17 and relief valve 20, this tributary circuit 21 is connected on the path 43 of emulsion fuel supply jet pump 42 described later by switch valve 22.In addition, between the point of branching of the fuel heater 19 of oily circulation loop 17 and above-mentioned tributary circuit 21 tributary circuit 23 is set, this tributary circuit 23 provides the flow sender 25 of switch valve 24, oily usefulness, is connected with the inlet of mixer 14.Flow sender 25 detects oil mass and also detected amount is sent as electric signal.
Water system, the water passage from water-supply source 26 beginnings is connected on the water tank 29 by block valve 27, and the water level of this water tank 29 maintains suitable water level by water level switch 28.And the path of water, begin through water suction booster 30, filter 31, detect the flow of water and, be connected to the inlet of mixer 14 from water tank 29 flow sender 32, water pump 15, cutter 33, water heater 34, the relief valve 35 of detected amount as the electric signal transmission.Among the figure, between water suction booster 30 and filter 31, between filter 31 and the flow sender 32, between water pump 15 and the cutter 33, detected pressures is set and sends to the pressure transmitter 36,37,38 of control section 13.In the drawings, be connected in the dotted line on each equipment (switch valve, cutter, flow sender etc.), all be connected on the control section 13, represent from control section 13 to equipment or from the signal line of equipment to the signal transmission usefulness of control section 13.
Mixer 14 is sent from delivery outlet as emulsion fuel behind oil that mixing is supplied with and the water.The delivery outlet of mixer 14 is connected on the jet pump 42 of engine 2 with sensor 40, switch valve 41 by adding the detection of water rate.On the path 43 between this switch valve 41 and the jet pump 42, connecting above-mentioned tributary circuit 21.Offer the fuel of jet pump 42,, be sent to injection valve 11 and offer in the cylinder (firing chamber) with jet pump 42 its amounts of control.Remaining fuel is sent path 44, and this path 44 is by blocking the inlet that pump 45, recycle pump 46, flow sender 47 are connected to mixer 14.From this mixer 14, the loop of returning mixer 14 through jet pump 42, block valve 45, recycle pump 46, flow sender 47 once more forms circulation loop 48.Jet pump 42 in this circulation loop 48 and path 44 branch from the way between the block valve 45 through block valve 49, are connected on the baffle-box 50.Baffle-box 50 in order to utilize the emulsion fuel of being sent here again, for example, is connected to oil and water seperator or boiler.In addition, have the path 57 of switch valve 56, the output of the jet pump 42 of circulation loop 48 is connected the back level of the relief valve 20 in the circulation loop 17.
Providing the state of emulsion fuel from only providing oil to switch to, is pump 30,15 actions of water system, opens the state of block valve 33.In this state, water and oil are provided for mixer 14, in mixer 14, become emulsion fuel after by sensor 40, switch valve 41, jet pump 42, offer the firing chamber from Fuelinjection nozzle 11.Be sent to the water of mixer 14, detect its flow, adjust with water pump 15 with flow sender 32.The oil that is sent to mixer 14 detects its flow with flow sender 25.And, be provided for the amount of the emulsion fuel of firing chamber, with jet pump 42 controls, after being circulated in circulation loop 48, the residue emulsion fuel returns mixer 14.Detect the amount that this residue emulsion fuel returns mixer 14 by flow sender 47.And then when taking place in mixer under the unusual situation, off switch valve 24,41 is opened switch valve 22,56.In this state, the oil that is circulated in the oily circulation loop 17 passes through switch valve 22, jet pump 42, offers the firing chamber from Fuelinjection nozzle 11.
Fig. 2 is the figure that the summary of the variation of the foregoing description constitutes, this emulsified fuel feeder 1a, it is the formation of omitting baffle-box 50, compare with the foregoing description, do not have block valve 49, baffle-box 50 this point, be connected on the inlet of mixer 14 this point by three switching valves 59 different with the terminal part 58 of the outlet of the outlet of flow sender 47, flow sender 25, water passage.
Three switching valves 59 switch according to the signal from control section.The 1st switching position, connection traffic transmitter 25 and mixer 14 and block the terminal part 58 of flow sender 47 and water passage.The 2nd switching position, difference connection traffic transmitter 25 and mixer 14, and the terminal part 58 of flow sender 47 and water passage.The 3rd switching position, flow sender 25,47, the terminal part 58 of water passage all is connected on the mixer 14.
The 1st switching position of these three switching valves 59 is used for only providing oil, and the 2nd switching position is used for only providing oil and emulsion fuel is kept out of the way water system, and the 3rd switching position is used for common emulsion fuel to be provided.And then, when making emulsion fuel keep out of the way water system, water pump 30,15 is stopped, to relief valve 35, block valve 33 1 side adverse currents.In this case, even adverse current arrives before the filter 31, can be not influential to other equipment yet.
Because other formation is identical with the foregoing description, so represent identical part and omit explanation with prosign.
Below with flowchart text Fig. 1 of Fig. 3～Figure 10, embodiment shown in Figure 2 and the effect of variation thereof.
In an embodiment, main program at first is explained as shown in Figure 3.When the supply of beginning emulsion fuel, in step S1, set initial instruction and add water rate a%, the situation of corresponding engine in step S2, the target of setting optimum reduction NOx adds the water rate.Specifically, for example, when engine speed is high, increase target and add the water rate, in addition, hour also increase target in load variations and add the water rate.Whether decision instruction adds the water rate and changes in following step S3, enters step S4 when change (NO) not.Enter step S9 (subroutine shown in Figure 4) when (YES) if change.That is, when each alteration command adds the water rate, enter subroutine.
In step S4, judge whether to have passed through fuel and arrive the 42 needed times of jet pump from mixer 14 (Fig. 1), promptly whether pass through retard time, do not entering step S5 through out-of-date (NO).(YES) enters step S13 (Control Parameter shown in Figure 5 alters the procedure) through retard time the time.That is, if, just enter Control Parameter and alter the procedure through retard time.
In step S5, judgement is to have passed through engine speed to stablize neededly by predefined stabilization time, is not entering step S6 through out-of-date (NO).Entering step S15 (instruction shown in Figure 6 adds the water rate and adjusts program) through out-of-date (YES).That is,, add the water rate with regard to entry instruction and adjust program if through stabilization time.Even (add water rate engine speed also in the stable system of moment changing instruction, can add water rate a% to initial order and become target and add water rate b%, add the water rate and adjust program and omit this step S5 and instruction.)
Judge in step S6 whether actual water injection rate equals to instruct water injection rate, and (NO) enters step S7 when equaling.(YES) enters step S19 when unusual (shown in Figure 8 program) when being not equal to.That is, (need permissible range to a certain degree) when unequal, enter program when unusual unusually as device at actual water injection rate and instruction water injection rate.
In step S7, judge actual add the water rate whether equal the instruction add the water rate, (NO) enters step S8 when equaling.(YES) enters step S19 when unusual (shown in Figure 8 program) when being not equal to, that is, add water rate and instruction and add the water rate when unequal (needs permissible range to a certain degree) actual, enters program when unusual unusually as device.
In step S8, judge whether to switch apace, not the time, return step S1.When having carried out quick switching, enter step S23 (quick changeover program shown in Figure 9).That is, when the instruction that quick switching is arranged, enter quick changeover program.(this quick changeover program, use when the predetermined outer engine that recoil when counter-rotating (machine) waits when stopping to be controlled.In addition, the low-speed region when being not suitable for using the low speed of emulsion fuel etc. also can use this quick changeover program, automatically removes emulsion fuel and supplies with.)
When the step S3 of main program enters step S9, that is, when entering subroutine shown in Figure 4, carry out following function.The oil mass of in step S9, carrying to mixer 14 from fuel tank 10, the amount of residual fuel, the actual water rate that adds of residual fuel to control section 13 inputs.In following step S10, according to the amount of oil mass residual fuel with actually add the instruction of water rate and add the water rate and calculate water injection rate, send instruction to water pump (water control section) 15.In following step S11, begin the timing of stabilization time.(this stabilization time, according to the output quantity of capacity [the ml]/emulsion fuel of 42 pipe arrangement from mixer 14 to jet pump [ml/sec) try to achieve.For it, can also add up the output quantity [ml/sec] of emulsion fuel, measure the output quantity calculated until this accumulative total time) above the capacity [ml] of 42 pipe arrangement from mixer 14 to jet pump.Then, enter step S12 (computer program retard time shown in Figure 7), begin the calculating of retard time.(when stabilization of speed, because the variation of the control coefrficient of PID control is little, so can omit delay loop this moment.In addition, the variance ratio that adds the water rate in instruction is little, and change in rotational speed is omitted after a little while too).And enter step S4.
When the step S4 from main program enters step S13, that is,, carry out function as described below entering Control Parameter shown in Figure 5 when altering the procedure.In step S13,, change the parameter of the oil mass that is used for increasing and decreasing fuel according to PID control, the variation of corresponding engine speed.Be set to En if carve the engine speed of detected reality and the difference of instruction rotating speed at a time, then according to this En that is detected, by the definite oil mass that should increase and decrease of Pn+In+Dn.According to the oil mass of the actual increase and decrease of this Pn+In+Dn, when adding the water rate and being x%, be (Pn+In+Dn) * { 1/ (1+x/100) } actual.For it being modified to suitable value, enlarge { 1+ (x/100) } doubly by handle and proportional parts, integral part, relevant each constant K p, Ki, the Kd of differential part, determine Kpn, Kin, the Kdn of this moment, determine the oil mass that increase and decrease with it.Thus, can irrespectively make the oil mass of increase and decrease identical with the actual water rate that adds.(also can replace the actual water rate that adds, use instruction to add the water rate and change constant.In addition, when using emulsion fuel,, also can select and the actual corresponding predefined Control Parameter of water rate that adds even break out energy changing when big owing to adding water with the oil of amount.) in the step S14 that follows, follow the actual change that adds the variation of water rate (instruction adds the water rate) in order to suppress engine speed, and regulate the amount of emulsion fuel.Then, enter step S5.
When the step S5 from main program enters step S15, that is,, carry out function as described below entering instruction shown in 6 when adding the water rate and adjusting program.This program does not make instruction add the water rate and changes to target rapidly and add the water rate, adjusts instruction and adds the water rate and change ground gradually, makes rotating speed not produce big variation.Decision instruction adds the water rate and whether equals target and add the water rate in step S15, enters step S6 when equaling, and enters step S16 when being not equal to.In step S16, the instruction of increase and decrease c% adds the water rate.This c% is set in the little scope of rotation speed change.In the step S17 that follows, be to add below the water rate if add under the state of water rate increase and decrease c% in instruction in target, then enter step S6, add the water rate then enter following step S18 if surpass target.In step S18, be that instruction adds the water rate and surpasses the situation that target adds the water rate, and instruction add the water rate and is set to target and adds the water rate.Then, enter step S6.
At step S6, when perhaps step S7 enters step S19, that is, when having entered unusual program shown in Figure 8, carry out function as described below from main program.In step S19, judge whether the actual water rate that adds has surpassed the upper limit and add the water rate, enter step S23 (the quick changeover program of Figure 10) having surpassed under the situation that the upper limit adds the water rate, when not surpassing, enter step S20 (water filling rest schedule shown in Figure 9).Do not surpassing the possibility of not misfiring when this upper limit adds the water rate, but can not control, so enter the water filling rest schedule because of the actual water rate that adds.
In the step S20 of water filling rest schedule, (water control section) water filling of instruction water pump part stops.Specifically, instruction is added the water rate be set at 0%, perhaps close block valve 33, water pump 15 is stopped.Then, enter following step S12 (computer program retard time shown in Figure 7).In step S12, with the above-mentioned timing that begins retard time the samely, enter following step S21. in step S21, judge whether to have passed through retard time, enter above-mentioned step S13 (Control Parameter shown in Figure 5 alters the procedure) after retard time having passed through.Then enter step S22 behind execution in step S13, the step S14.In step S22, judge whether the actual water rate that adds is substantially equal to 0, returned step S12 at 0 o'clock not being substantially equal to, finished water filling at 0 o'clock and stop being substantially equal to.
At step S8, perhaps when the step S19 of unusual program enters step S23, that is, when having entered quick changeover program shown in Figure 10, carry out function as described below from main program.In step S23, (water control section) water filling of instruction water pump part stops, and instruction is added the water rate be set at 0%.In following step S24, send the emulsion fuel that makes circulation loop 48 and flow into baffle-box 50, perhaps flow into the instruction of keeping out of the way of water system.(circulation loop 48 is restored to the original state.And then the emulsion fuel of keeping out of the way can be handled in oil and water seperator, perhaps at other device, for example, burning in boiler etc.) then, enter following step S12 (computer program retard time shown in Figure 7).In step S12, with the above-mentioned the same timing that begins retard time.Then, enter step S25.In step S25,, enter above-mentioned steps S13 (Control Parameter shown in Figure 5 alters the procedure) waiting for through after the retard time that is calculated.In step S13, the step S14 that follows, with the above-mentioned function of carrying out the samely.Then finish to switch fast.
More than the corresponding relation of the summary of Shuo Ming embodiment and above-mentioned the 1st～the 8th scheme is as follows.
The 1st scheme as described in the step S2 of above-mentioned main program, because target setting adds water rate a%, adds water rate control according to this target and offers the water yield of mixer, misfires and reduces NOx so can control.
In addition, the 2nd scheme, described in altering the procedure in above-mentioned Control Parameter because regulate the amount of emulsion fuel, so can with only with the rotating speed of the same ground of oil running Control Engine.Then, as described in the retard time computer program, because taking the injection of carrying out emulsion fuel retard time into account, so can be controlled really.
In addition, the 3rd scheme shown in step S9, the step S10 of above-mentioned subroutine, in emulsion fuel circuit system, holds the amount of returning of self circular loop, just can control the actual water rate that adds.
In addition, the 4th scheme shown in variation (formation of Fig. 2), in emulsion fuel circuit system, is omitted baffle-box, and emulsion fuel is kept out of the way.
In addition, the 5th scheme and the 6th scheme are shown in step S6, the step S7 of above-mentioned main program, unusual program, water filling rest schedule, quick changeover program, when water system is unusual, can not cause and misfire, can consume the emulsion fuel in the circulation loop as much as possible.This with make emulsion fuel keep out of the way baffle-box to compare, needn't solve because very desirable on this aspect of problem of transit time and oil and water separation.
In addition, the 7th scheme, as above-mentioned Control Parameter alter the procedure, shown in the retard time computer program because add the precision height of water rate, thus actual when adding the water rate what change emulsion fuel, can reduce the variation of engine speed.
In addition, the 8th scheme adds shown in the water rate adjustment program as the step S5 of above-mentioned main program, instruction, when the change target adds the water rate, because make the actual water rate that adds add the water rate gradually near target, thus actual when adding the water rate what change emulsion fuel, can reduce the variation of engine speed.
Claims (16)
1. one kind provides the emulsified fuel feeder of emulsion fuel to engine,
Comprise: fuel tank, it is used for storage oil; Injection valve, it is used for spraying oil in cylinder; The pressurizing circulation pump, it is used for to above-mentioned injection valve pressure oil; Jet pump, it is used for controlling the amount of the oil that ejects from above-mentioned injection valve; Control section, it is used for controlling this jet pump; Mixer, it is set between above-mentioned jet pump and the above-mentioned fuel tank and is used for miscella and water; And water pump, it is used for providing water to this mixer; It is characterized in that:
With the state of engine, perhaps, load condition correspondingly is set in the target that can reduce the possibility of misfiring when reducing nitrogen oxide (NOx) and adds the water rate, adds the water rate according to this target, and control provides the water yield of mixer.
2. emulsified fuel feeder as claimed in claim 1 is characterized in that:
When above-mentioned load change is big, above-mentioned target is added the water rate set hour also lowlyer than the change of above-mentioned load, perhaps when engine speed is low, also low when above-mentioned target is added the water rate and sets highlyer than engine speed.
3. one kind provides the emulsified fuel feeder of emulsion fuel to engine,
Comprise: fuel tank, it is used for storage oil; Injection valve, it is used for spraying oil in cylinder; The pressurizing circulation pump, it is used for to above-mentioned injection valve pressure oil; Jet pump, it is used for controlling the amount of the oil that ejects from above-mentioned injection valve; Control section, it is used for controlling this jet pump; Mixer, it is set between above-mentioned jet pump and the above-mentioned fuel tank and is used for miscella and water; And water pump, it is used for providing water to this mixer; It is characterized in that:
Above-mentioned control section carries out PID control, when turning round with emulsion fuel, according to instruction add the water rate change Control Parameter make engine speed with only add and subtract with oily the running the samely.
4. emulsified fuel feeder as claimed in claim 1 is characterized in that: change above-mentioned Control Parameter according to the actual water rate that adds.
5. as claim 3, perhaps 4 described emulsified fuel feeders is characterized in that: change above-mentioned Control Parameter, make and above-mentionedly actually add water rate or above-mentioned instruction to add the change of water rate irrelevant, the oil mass that is included in the emulsion fuel becomes identical.
6. as claim 3, perhaps 4 described emulsified fuel feeders is characterized in that: the change of above-mentioned Control Parameter actually adds emulsion fuel after the water rate changes and carries out in jet pump is ejected into cylinder the time above-mentioned.
7. one kind provides the emulsified fuel feeder of emulsion fuel to engine,
Comprise: fuel tank, it is used for storage oil; Injection valve, it is used for spraying oil in cylinder; The pressurizing circulation pump, it is used for to above-mentioned injection valve pressure oil; Jet pump, it is used for controlling the amount of the oil that ejects from above-mentioned injection valve; Control section, it is used for controlling this jet pump; Mixer, it is set between above-mentioned jet pump and the above-mentioned fuel tank and is used for miscella and water; And water pump, it is used for providing water to this mixer; It is characterized in that:
Possesses the circulation loop of the residual fuel of jet pump being delivered to the prime of mixer, the amount detection machine structure of the amount that detects above-mentioned residual fuel is set, add the water rate according to the amount of above-mentioned residual fuel and actual oil mass, the instruction that adds the water rate, newly delivers to mixer, calculate the water yield that will newly add from fuel tank.
8. emulsified fuel feeder as claimed in claim 7, it is characterized in that: above-mentioned amount detection machine structure, it is the flow sender from be arranged on above-mentioned circulation loop, or the amount of the emulsion fuel of calculating consumption from the output or the engine speed of control section, from the flow that is sent to jet pump, deduct the computing unit of amount of the emulsion fuel of consumption.
9. emulsified fuel feeder as claimed in claim 7, it is characterized in that: the actual water rate that adds of above-mentioned residual fuel, the instruction of use when remaining emulsion fuel generates adds water rate (the actual water rate that adds), perhaps adds the detected actual water rate that adds of water rate detector by being arranged on the above-mentioned circulation loop.
10. one kind provides the emulsified fuel feeder of emulsion fuel to engine,
Comprise: fuel tank, it is used for storage oil; Injection valve, it is used for spraying oil in cylinder; The pressurizing circulation pump, it is used for to above-mentioned injection valve pressure oil; Jet pump, it is used for controlling the amount of the oil that ejects from above-mentioned injection valve; Control section, it is used for controlling this jet pump; Mixer, it is set between above-mentioned jet pump and the above-mentioned fuel tank and is used for miscella and water; And water pump, it is used for providing water to this mixer; It is characterized in that:
Possess the residual flow of above-mentioned jet pump is connected circulation loop on the above-mentioned mixer prime, form the emulsion fuel that makes in this circulation loop and can keep out of the way water lines.
11. one kind provides the emulsified fuel feeder of emulsion fuel to engine,
Comprise: fuel tank, it is used for storage oil; Injection valve, it is used for spraying oil in cylinder; The pressurizing circulation pump, it is used for to above-mentioned injection valve pressure oil; Jet pump, it is used for controlling the amount of the oil that ejects from above-mentioned injection valve; Control section, it is used for controlling this jet pump; Mixer, it is set between above-mentioned jet pump and the above-mentioned fuel tank and is used for miscella and water; And water pump, it is used for providing water to this mixer; It is characterized in that:
Possess the residual flow of above-mentioned jet pump is connected circulation loop on the above-mentioned mixer prime, can not control actual when adding the water rate, stopping water supplying with, and in the actual water rate that adds under the upper limit adds situation below the water rate, do not make the emulsion fuel of above-mentioned circulation loop keep out of the way ground, use this emulsion fuel.
12. one kind provides the emulsified fuel feeder of emulsion fuel to engine,
Comprise: fuel tank, it is used for storage oil; Injection valve, it is used for spraying oil in cylinder; The pressurizing circulation pump, it is used for to above-mentioned injection valve pressure oil; Jet pump, it is used for controlling the amount of the oil that ejects from above-mentioned injection valve; Control section, it is used for controlling this jet pump; Mixer, it is set between above-mentioned jet pump and the above-mentioned fuel tank and is used for miscella and water; And water pump, it is used for providing water to this mixer; It is characterized in that:
Possess the residual flow of above-mentioned jet pump is connected circulation loop on the above-mentioned mixer prime, can not control actual when adding the water rate, when stopping the water supply, the amount of regulating the residual fuel that is imported into above-mentioned mixer makes the actual water rate that adds add below the water rate in the upper limit.
13. one kind provides the emulsified fuel feeder of emulsion fuel to engine,
Comprise: fuel tank, it is used for storage oil; Injection valve, it is used for spraying oil in cylinder; The pressurizing circulation pump, it is used for to above-mentioned injection valve pressure oil; Jet pump, it is used for controlling the amount of the oil that ejects from above-mentioned injection valve; Control section, it is used for controlling this jet pump; Mixer, it is set between above-mentioned jet pump and the above-mentioned fuel tank and is used for miscella and water; And water pump, it is used for providing water to this mixer; It is characterized in that:
When the instruction of emulsion fuel adds water rate or (the actual water rate that adds) change, add water rate (the actual water rate that adds) according to above-mentioned instruction, above-mentioned control section makes that by the injected emulsion fuel amount of above-mentioned jet pump increase and decrease the outburst energy is certain.
14. emulsified fuel feeder as claimed in claim 13 is characterized in that: above-mentioned control section by the injected emulsion fuel amount of above-mentioned jet pump increase and decrease, makes that the outburst energy is certain according to the actual water rate that adds.
15. as claim 13,14 described emulsified fuel feeders, it is characterized in that: when above-mentioned instruction added water rate or the actual change that adds the water rate, the increase and decrease emulsion fuel made that the amount of oil is certain.
16. one kind provides the emulsified fuel feeder of emulsion fuel to engine,
Comprise: fuel tank, it is used for storage oil; Injection valve, it is used for spraying oil in cylinder; The pressurizing circulation pump, it is used for to above-mentioned injection valve pressure oil; Jet pump, it is used for controlling the amount of the oil that ejects from above-mentioned injection valve; Control section, it is used for controlling this jet pump; Mixer, it is set between above-mentioned jet pump and the above-mentioned fuel tank and is used for miscella and water; Water pump, it is used for providing water to this mixer; It is characterized in that:
When the target of the reduction of optimum nitrogen oxide (NOx) adds the water rate and changed, make the actual water rate that adds move closer to target and add the water rate.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP183467/1999 | 1999-06-29 | ||
| JP18346799A JP4208349B2 (en) | 1999-06-29 | 1999-06-29 | Emulsion fuel supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1287219A true CN1287219A (en) | 2001-03-14 |
Family
ID=16136312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00118789A Pending CN1287219A (en) | 1999-06-29 | 2000-06-29 | Supply device for emulsion fuel |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4208349B2 (en) |
| KR (1) | KR20010020850A (en) |
| CN (1) | CN1287219A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011060622A1 (en) * | 2009-11-23 | 2011-05-26 | 福油特化工科技（深圳）有限公司 | System and method for promoting the formation of emulsified fuel of diesel engine |
| CN101828075B (en) * | 2007-10-22 | 2013-01-02 | 株式会社盛长 | Emulsion fuel and process and equipment for the production of the same |
| CN103732901A (en) * | 2010-11-08 | 2014-04-16 | 三菱重工业株式会社 | Fuel injection device for internal combustion engine |
| CN108350834A (en) * | 2016-01-20 | 2018-07-31 | 宝马股份公司 | For open loop or the method and apparatus of the amount of closed-loop control fuel mixture |
| CN109958551A (en) * | 2017-12-14 | 2019-07-02 | 奥特润株式会社 | The control method and engine of Water jet eductors |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002221101A (en) * | 2001-01-29 | 2002-08-09 | Sg:Kk | Fuel emulsifying device using light fuel as fuel for internal combustion engine |
| KR100443429B1 (en) * | 2001-07-27 | 2004-08-09 | 강현구 | Oil mixing of supply system |
| DE10218723B4 (en) | 2002-04-26 | 2006-02-16 | Man B & W Diesel Ag | A method of operating a reciprocating internal combustion engine for NOx reduction |
| JP2008115741A (en) * | 2006-11-02 | 2008-05-22 | Nabtesco Corp | Control device for engine provided with water filling device |
| JP4510798B2 (en) * | 2006-12-15 | 2010-07-28 | 株式会社ガリレオ | Emulsion fuel supply device |
| JP4510799B2 (en) * | 2006-12-15 | 2010-07-28 | 株式会社ガリレオ | Emulsion fuel supply device |
| DE102008006953B4 (en) * | 2008-01-31 | 2010-09-02 | Airbus Deutschland Gmbh | System and method for reducing pollutants in engine exhaust |
| US8914220B2 (en) | 2008-12-26 | 2014-12-16 | Toyota Jidosha Kabushiki Kaisha | Engine system |
| JP4897064B2 (en) * | 2010-03-01 | 2012-03-14 | 川崎重工業株式会社 | Engine system with water emulsion fuel drain recycling system |
| JPWO2014030242A1 (en) * | 2012-08-23 | 2016-07-28 | やまと総合環境株式会社 | Combustion system |
| CN103883432A (en) * | 2014-03-25 | 2014-06-25 | 宋凤杰 | Diesel engine discharging and denitration pre-processing system |
| GB2589364B (en) * | 2019-11-28 | 2022-03-23 | Delphi Automotive Systems Lux | A method of controlling a fluid delivery system |
-
1999
- 1999-06-29 JP JP18346799A patent/JP4208349B2/en not_active Expired - Lifetime
-
2000
- 2000-05-17 KR KR1020000026425A patent/KR20010020850A/en active Search and Examination
- 2000-06-29 CN CN00118789A patent/CN1287219A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101828075B (en) * | 2007-10-22 | 2013-01-02 | 株式会社盛长 | Emulsion fuel and process and equipment for the production of the same |
| WO2011060622A1 (en) * | 2009-11-23 | 2011-05-26 | 福油特化工科技（深圳）有限公司 | System and method for promoting the formation of emulsified fuel of diesel engine |
| US8925498B2 (en) | 2009-11-23 | 2015-01-06 | Fu You Te Chemical Technology (Shenzhen) Co., Ltd. | Emulsion fuel enabling system and method |
| CN103732901A (en) * | 2010-11-08 | 2014-04-16 | 三菱重工业株式会社 | Fuel injection device for internal combustion engine |
| CN108350834A (en) * | 2016-01-20 | 2018-07-31 | 宝马股份公司 | For open loop or the method and apparatus of the amount of closed-loop control fuel mixture |
| US10598131B2 (en) | 2016-01-20 | 2020-03-24 | Bayerische Motoren Werke Aktiengesellschaft | Method and device for the open-loop or closed-loop control of the amount of a fuel mixture |
| CN109958551A (en) * | 2017-12-14 | 2019-07-02 | 奥特润株式会社 | The control method and engine of Water jet eductors |
| CN109958551B (en) * | 2017-12-14 | 2021-03-23 | 现代凯菲克株式会社 | Control method of water-spraying ejector and engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4208349B2 (en) | 2009-01-14 |
| KR20010020850A (en) | 2001-03-15 |
| JP2001012309A (en) | 2001-01-16 |
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