CN86105113A - The improvement that fuel of internal combustion engine sprays - Google Patents
The improvement that fuel of internal combustion engine sprays Download PDFInfo
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- CN86105113A CN86105113A CN86105113.0A CN86105113A CN86105113A CN 86105113 A CN86105113 A CN 86105113A CN 86105113 A CN86105113 A CN 86105113A CN 86105113 A CN86105113 A CN 86105113A
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- 239000000446 fuel Substances 0.000 title claims abstract description 110
- 239000007921 spray Substances 0.000 title claims abstract description 11
- 238000002485 combustion reaction Methods 0.000 title claims description 19
- 230000006872 improvement Effects 0.000 title description 3
- 239000000295 fuel oil Substances 0.000 claims abstract description 82
- 239000003921 oil Substances 0.000 claims abstract description 36
- 238000010304 firing Methods 0.000 claims abstract description 35
- 238000002347 injection Methods 0.000 claims abstract description 31
- 239000007924 injection Substances 0.000 claims abstract description 31
- 230000009467 reduction Effects 0.000 claims abstract description 19
- 230000035515 penetration Effects 0.000 claims abstract description 16
- 239000007789 gas Substances 0.000 claims description 40
- 238000000034 method Methods 0.000 claims description 20
- 230000008859 change Effects 0.000 claims description 14
- 238000005259 measurement Methods 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 5
- 230000001143 conditioned effect Effects 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 239000002737 fuel gas Substances 0.000 claims description 3
- 239000010761 intermediate fuel oil Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 2
- 230000008676 import Effects 0.000 claims 1
- 238000010992 reflux Methods 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 description 8
- 238000005192 partition Methods 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 4
- 239000003595 mist Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000002964 excitative effect Effects 0.000 description 3
- 239000002828 fuel tank Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000010705 motor oil Substances 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 210000001364 upper extremity Anatomy 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D3/00—Controlling low-pressure fuel injection, i.e. where the fuel-air mixture containing fuel thus injected will be substantially compressed by the compression stroke of the engine, by means other than controlling only an injection pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
- F02M69/16—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel characterised by means for metering continuous fuel flow to injectors or means for varying fuel pressure upstream of continuously or intermittently operated injectors
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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
- F02D7/00—Other fuel-injection control
- F02D7/02—Controlling fuel injection where fuel is injected by compressed air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
- F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
- F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
- F02M51/0635—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a plate-shaped or undulated armature not entering the winding
- F02M51/0642—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a plate-shaped or undulated armature not entering the winding the armature having a valve attached thereto
- F02M51/0653—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a plate-shaped or undulated armature not entering the winding the armature having a valve attached thereto the valve being an elongated body, e.g. a needle valve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
- F02M51/08—Injectors peculiar thereto with means directly operating the valve needle specially for low-pressure fuel-injection
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
- F02M69/08—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel characterised by the fuel being carried by compressed air into main stream of combustion-air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/02—Engines characterised by their cycles, e.g. six-stroke
- F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
- F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/02—Engines characterised by their cycles, e.g. six-stroke
- F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
- F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/12—Other methods of operation
- F02B2075/125—Direct injection in the combustion chamber for spark ignition engines, i.e. not in pre-combustion chamber
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B61/00—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
- F02B61/04—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers
- F02B61/045—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers for outboard marine engines
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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
Abstract
Control directly sprays into the fuel distribution of engine chamber 122, according to the need oil mass of engine load the fuel oil that enters air is measured, and the oil gas inflation that forms is sprayed into the firing chamber with sparger 124.Gas pressure causes the injection of oil gas inflation, and regulator 10 is according to fuel pressure control gaseous pressure, to keep pressure reduction stable between them.Regulator 124 changes fuel pressure according to engine load, to increase the fuel oil penetration under the selected engine load.
Description
The fuel oil that the present invention relates to measure sprays into combustion chambers of internal combustion engines.
In order to obtain higher fuel efficiency and more effectively to control exhaust gas discharged, be necessary to control the situation of mist of oil in the firing chamber.It has been observed that best mist of oil situation is not fixed, but changes with engine load, and load itself is relevant with the rotating speed of motor.The control mist of oil is particularly important to reduce the fuel oil that is leaked by outlet pipe in two stroke engine, because outlet pipe has at least a period of time not cut out fully between fuel injection period.
When motor is in underloading and to oil mass after a little while, the penetration that enters the fuel oil of cylinder should be limited, with reduce fuel oil in the firing chamber owing to the degree of diluting with air mixing.The fuel oil of dilution produces a kind of gas mixture that is difficult to light a fire, and all blazes up less than the fuel oil that all attaches and can not burn.And in heavy duty with give oil mass for a long time, should improve the penetration of fuel oil, guarantees that a large amount of fuel oils can both mix with enough air (oxygenant), so that whole fuel oil can both burn.
Main purpose of the present invention provides a kind of method of controlling engine oil, to change the mist of oil situation, promotes that fuel oil burns more fully.
From this purpose, the invention provides a kind of method of controlling combustion engine fuel distribution, be included in and pass through nozzle under such condition directly to the firing chamber oil spout, make the fuel oil that enters the firing chamber penetrate first degree of depth, and when the need oil mass of engine load is higher than the numerical value of formerly determining, can change described condition again, enter the depth of penetration of firing chamber fuel oil with increase.
Usually make the pressure of fuel emission need oil mass to increase by selected one or more engine loads by nozzle, or make this pressure increase one or more levels engine speed or load range step by step, to change the penetration of fuel oil in the mode of classification.
More particularly, the present invention provides the method for fuel distribution in a kind of controlling combustion engine firing chamber, comprise fuel oil of under discharge pressure, discharging and the gaseous matter integrator that to measure, the fuel-air mixture that forms is like this entered the firing chamber by nozzle under the mixed gas discharge pressure, pressure reduction between adjusting fuel oil and gaseous matter is to need all to keep basic uniform pressure reduction in the oil mass scope at whole engine loads, and control is increased when the need oil mass of engine load is higher than the numerical value of formerly determining to the pressure of the fuel-air mixture of firing chamber discharging, thereby the fuel oil penetration that enters the firing chamber is deepened.
Stable pressure reduction has been simplified the control to the fuel oil amount of recording between maintenance fuel oil and the gaseous matter, does not need the variation of this pressure reduction is compensated in this control procedure.
The control of fuel oil penetration is best removes to change fuel pressure according to engine speed, and then changes gas pressure to keep the method realization of stable pressure reduction.Correspondingly, the variation of fuel pressure will finally cause and be used for fuel-air mixture by the variation of nozzle to the pressure of firing chamber discharging.
The best basis of the increase of pressure selected one or more rotating speeds in common engine speed range carry out, and find that the once increase in the medium speed range just is enough to satisfy the needs of multiple motor.
When the oil gas pressure reduction that adjusting enters, press as control function according to changing fuel oil, and and then cause that a series of variations of gas pressure can bring special advantage with the various adjustings that keep selected pressure reduction.
One of its advantage is that the ratio of viscosities liquid fuel of gas is low, thereby controlled gas pressure is not subjected to influence by the changes in flow rate of pressure regulator when regulating.This just causes pressure reduction to all insensitive effect of any one changes in flow rate in fuel oil or the gas.This advantage is particularly remarkable during by engine-driving at the pump of supplying with fuel oil and gas, because at this moment pump delivery is relevant with rotating speed significantly.
Correspondingly, another object of the present invention is, a kind of oil gas regulating system that is specially adapted to adopt the fuel injection system of supercharging fuel and air feed is provided.
From this purpose, the invention provides a kind of internal combustion engine fuel injection system, the pressure amount of fuel that wherein records is admitted to gas, to form the oil gas inflation, when it is characterized in that fuel pressure is transferred to newly selected accordingly numerical value, gas pressure is also adjusted with respect to fuel pressure, to keep predetermined fuel oil and the pressure reduction between gas when measuring fuel oil.
The easy practice is that the adjusting pressure of fuel oil can be selected between two predetermined numerical value at least.Preferably allow the variation of the fuel pressure that is conditioned that engine speed is dropped on the rotating speed selected in the common speed range, and this variation in pressure can and then reduce again when being lower than set point value along with engine speed when preferably surpassing set point value along with engine speed and increase.Preferably allow fuel pressure be adjusted to a predetermined value relevant with atmospheric pressure.
Further object of the present invention is, for engine fuel oil system provides a kind of fuel pressure regulator, producing predetermined fuel oil delivery pressure, and provide a kind of device that can described pressure be changed to a predetermined value for engine fuel oil system according to selected engine operating condition.
Usually predetermined fuel oil delivery pressure can be adjusted with the device that this elastic device of adjustment just can change this delivery pressure by an elastic device that is tightened in advance to a certain degree.The preferably tensioning or be compressed to a certain degree of this elastic device to produce the spring of the elastic force of adjusting required basic fuel pressure.In case motor reaches predetermined load, the compression of this spring or tensioning degree also will increase, and to strengthen the delivery pressure of fuel oil, in case engine speed is reduced to when being lower than selected load, its compression or tensioning degree can obviously reduce again.
The fuel oil head pressure that enters the firing chamber by adjusting of having touched upon in this manual changes the penetration of fuel spray bundle, and this needs one or several specific variations of oil mass relevant with engine load, and the available several different methods of this need oil mass is measured.In many motors, engine speed characterizes the load of the motivation of setting out under most of operating modes, and is particularly in the motor of working in specific speed range usually, for example all the more so in the outboard marine engine.Because engine speed can detect easily, and only requires fairly simple sensor, thereby the rotating speed of motor monitored, measuring the variation of load at any time, with the time change the penetration of fuel oil.
In conjunction with following accompanying drawing, the explanation to an embodiment of fuel oil in the fuel injection system and air pressure controlling device will help more to be expressly understood the present invention.
Fig. 1 has the axial, cross-sectional view of directly spraying the two stroke engine of oil-fired system in the cylinder.
Fig. 2 is applicable to the fuel measurement of motor shown in Figure 1 and the front view of injection apparatus, and wherein a part has been made broken section.
Fig. 3 is applicable to the fuel oil of fuel measurement shown in Figure 2 and injection apparatus and the sectional view of air pressure regulator, expresses the connecting relation of it and other inter-module of fuel injection system with diagram.
With reference to figure 1, motor 109 is the two-stroke single Cylinder engines with general structure, has a cylinder 110, crankcase 111 and pistons reciprocating 112 in cylinder 110.Piston 112 is connected on the bent axle 114 by connecting rod 113.Have on the crankcase and only express wherein one on the air passageways 116(figure), crankcase communicates with corresponding by-pass hole by these passages, and wherein two holes are represented with 117 and 118, and the 3rd hole is positioned at 118 opposites, hole with 117.
Each by-pass hole all forms or on cylinder 110 walls, their upper limb is positioned on the same transverse section of cylinder.Exhaust port 120 also on cylinder wall, generally is arranged in middle by-pass hole 118 opposites.
A firing chamber 122 is arranged in dismountable cylinder head 121, spark plug 123 stretches into wherein, firing chamber 122 relative cylinder axis are balanced configuration substantially, and then just in time on this axis, fuel injector 124 is on the cylinder wall between by-pass hole and the cylinder head for spark plug.The top of by-pass hole 118 in the middle of the nozzle 124 that goes out with contour representation is positioned at.
Sparger 124 is constituent elements of fuel measurement and ejecting system, thereby can directly spray into engine chamber by pressurized air by the fuel oil that air is brought into.Fig. 2 expresses a kind of fuel measurement and injection apparatus that adopts the custom design of fuel oil of the present invention and air pressure control system.
Fuel measurement among Fig. 2 and injection apparatus have a suitable measuring device 130, the such device of for example a kind of self-choke nozzle.This measuring device is connected on the oil injector body 131, and a holding chamber 132 is arranged in the oil injector body.Fuel oil arrives measuring devices 130 from oil transfer pump (on the figure draw) through entering hole 133, measures according to motor the needs of fuel oil are entered amount of fuel in the holding chamber 132.Deliver to the unnecessary fuel oil of measuring device and get back to fuel tank by fuel flow returns hole 134.The structure of fuel measurement device 130 there is no strict demand to the present invention, and any suitable measuring device all can use.
During engine operation, holding chamber 132 is by the supercharging air of sending here by the air intlet 145 in the oil injector body 131.Injection valve 143 activated the fuel oil that pressurized air will be measured and enters engine chamber from passing through oil injecting nozzles 142 from holding chamber 132.Oil injecting nozzle injection valve 143 has bacterium shape air valve structure, leads to the firing chamber inwardly, is communicated with holding chamber outwardly.
Injection valve 143 is connected on the armature 141 of the solenoid valve 147 in the oil injector body 131 by the valve rod 144 that passes holding chamber 132.Injection valve 143 is offset to closed position by belleville spring 140, is opened by the excitatory of solenoid valve 147.The excitatory of solenoid valve 147 controlled to such an extent that just in time be in step with engine operational cycle, and fuel oil is entered engine chamber from holding chamber 132.
The further details of the such fuel measurement with holding chamber that comes out as shown in Figure 2 and the work of ejecting system is disclosed in No. 740067 U.S.'s related application of No. 32132/84 Australian patent application and proposition on April 2nd, 1985, and every piece of disclosed content of file comprises in this manual.
As can be seen, fuel oil is to overcome the air pressure that is present in the holding chamber by measuring device 130 to send holding chamber 132 to.Therefore, the pressure reduction of air has determined the interior amount of fuel of input holding chamber in the fuel oil of measuring device place supply and the holding chamber.From the required precision of fuel measurement, the waste gas that fuel-economizing is still discharged control no matter, it is crucial controlling this pressure reduction effectively.
Fig. 3 is a fuel injection system with fuel oil and air combined regulator, and this compound regulator is applicable to fuel measurement and the injection apparatus that the front was narrated in conjunction with Fig. 2.But will understand that this regulator can also be used for other fuel measurement and ejecting system after below in conjunction with Fig. 3 this regulator being described, be not to be only limited to be used in the system shown in Figure 2.
Fuel injection system shown in Figure 3 comprises the fuel measurement and the injection apparatus 5 that are passed through regulator 10 air supplies and fuel oil by compressor 2 and fuel tank 6 respectively.Fuel oil is delivered to high-pressure service pump 7 from fuel tank 6 via the passage 18 in the regulator 10 with low pressure elevator pump 3.
High pressure fuel inlet passage 20 is regulated chamber 12 with fuel oil and is communicated with the discharge side of high pressure oil pump 7.21 on the one-way valve that passage 18 and chamber are 12 has added slight preload, and low-voltage fuel can be flowed through fuel oil adjusting chamber 12 to clean high pressure fuel circulation loop and air ejector 5 by passage 18 when starting like this.
Surpass and regulate pressure in case regulate fuel pressures in the chamber 12, barrier film 13 moves with regard to the elastic force that overcomes spring 25, and valve member 14 disengages with hole 15, allow fuel oil through the hole 15 flow channels 18, so just will regulate chamber 12 interior pressure and drop to adjusting pressure.
So just can find out, the control gas that enters 30 parts of control chamber 28 can make the spring that acts on the barrier film 13 press increases a predetermined value, it increases the pressure release pressure of valve member 14 again, thereby is also increased corresponding by the fuel pressure that high pressure oil pump 7 is input to injector device 5.
In order to reduce to enter the air pressure of control chamber 30 parts, the elastic force of a spring (not drawing on the figure) with partial offset spring 25 can be set between spring support plate 24 and end plate 26.
The effect that solenoid valve 49 increases the fuel oil head pressure can realize by a proper engine speed probe, when engine speed reaches a predetermined value, speed probe just makes a switch motion, make solenoid valve 49 excitatory, like this air of delivering to injector device 5 by the female pipe of the air regulated 30 parts that just can enter control chamber 28.The pressure that is applied on the partition 27 by this air will make spring support plate 24 move, and edge 32 will lean against on the crossette 33, and the load that spring 25 is applied on the barrier film 13 increases an adjusted value.
Can be adapted to regulate multiple fuel pressure as the solenoid valve 49 of supercharging fuel pressure and the work of control chamber 28.A way adopts electric controller to regulate exactly, and the electric current of supplying with this device can change, thereby the motion of partition is adjusted.
It is desirable that suitable magnetic hysteresis acts in the action of solenoid valve 49, " adjusting disorderly " phenomenon in the time of can preventing to change fuel pressure.
Fuel oil of having narrated in conjunction with Fig. 3 and the fuel pressure part 9 in the compound adjusting part 11 of air pressure structurally can be independent fuel pressure regulators, and it is regulated pressure and can change during work.Can adjust the desirability of injection pressure and do discussion in front as the method that a kind of change enters the fuel oil penetration of firing chamber, this also can be used for the ejecting system of an injecting LPG in liquefied condition, and liquid fuel is being carried air or other suitable gas secretly in this system.Correspondingly, fuel pressure regulator part 9 regulator that also can be used as convertible pressure uses in the ejecting system of an atomizing of liquids.
The compound adjusting that Fig. 3 represents continue to be discussed below, and fuel chamber 12 communicates with chamber 36 in the air conditioning part 11 by passage 35, and separates with diaphragm 38 and air pressure lumen 37.Air pressure lumen 37 communicates with air by compressor 2 through passages 39, and air outlet passage 40 is led to injector device 5 by chamber 37.Diaphragm 38 is with valve 41 action of hole 42 collaborative works.Hole 42 communicates with air bypass 43.
45 pairs of diaphragms 38 of spring apply the pressure that usually valve 41 is opened.Like this, be enough to overcome chamber 36 intermediate fuel oil pressure when acting on power on the diaphragm 38 when the spring power of the air pressure in chamber 37 and spring 45 adds, valve 41 is opened hole 42 together.Therefore, making air pressure always be lower than fuel pressure, to deduct the power that is acted on the diaphragm 38 by spring 45 be suitable.
Above-mentioned regulator is used to regulate when being delivered to fuel oil and penetrated the fuel pressure of spray apparatus 5 by pump 7 relevant with atmospheric pressure, relevant when being used to regulate the air pressure of delivering to the fuel injection apparatus with fuel pressure, just there is a pressure reduction given in advance between fuel oil of when fuel injection apparatus is worked, supplying with and the air like this.In addition, the air pressure of 30 parts by acting on control chamber 28 can make the fuel pressure of adjusting increase a predetermined numerical value, thereby air pressure also can correspondingly increase same numerical value, delivers to like this between the fuel oil of fuel measurement and injection apparatus and the air and just can keep same pressure reduction.So, the fuel spray depth of penetration is changed, and need not fuel supply volume is carried out other adjustment and correction.
The air pressure variations degree that is used for fuel-air mixed gas is sent into the firing chamber can and be tested selected with load or the desired fuel oil depth of penetration of change in rotational speed to every motor according to the geometrical shape of motor.One is applicable to that having each firing chamber discharge capacity is that the example of 0.4 liter two stroke engine is, air pressure increases to 500KPA by 250KPA when motor is in the such medium rotating speed of 2500RPM.
The compound differential regulator of above-mentioned fuel pressure regulator and fuel oil and air pressure can with the use that combines of fuel measurement shown in Figure 2 and transporting system, it is disclosed in our No. 32132/84 Australian patent application of trying, perhaps can be used on our PH01559 that is trying, be entitled as for PH1991 and PH3344 number in the oil supplying device of the sort of two stroke engine of being narrated in the Australian patent application of " improvement of direct injection engine ", also can be used in this two stroke engine oil supplying device in Australia and other local patent application of enjoying above-mentioned Australian patent application preference that proposes.By such explanation, disclosed content has been included this specification in the above-mentioned patent application specification.
The explanation of doing has by reference to the accompanying drawings above provided embodiment to the present invention is used for two-stroke spark ignition conventional engine aspect, but should be understood that the present invention also can be used for for example Wankel engine of four-stroke engine and other type of spark ignition. The present invention can be used for internal combustion engine and makes multiple use, is specially adapted to comprise automobile usefulness, motorcycle usefulness, marine engine and outboard marine engine in the fuel-economizing and control toxic emission of means of transport engine.
Claims (25)
1, the method for a kind of controlling combustion engine firing chamber fuel distribution, be included in and pass through nozzle under such condition directly to the firing chamber oil spout, make the fuel oil that enters the firing chamber penetrate first degree of depth, and when the need oil mass of engine load is higher than the numerical value of formerly determining, can change described condition again, enter the depth of penetration of firing chamber fuel oil with increase.
2, the method for a kind of controlling combustion engine firing chamber fuel distribution, comprise that the fuel oil of going into to measure with gas induced can form the oil gas inflation, control the amount of fuel that imports according to needs to engine load, under such condition, directly spray described oil gas inflation to the firing chamber by nozzle, make the fuel oil that enters the firing chamber penetrate first degree of depth, and when the needs to engine load are higher than the numerical value of formerly determining, can change described condition again, enter the depth of penetration of firing chamber fuel oil with increase.
3, a kind of method of control fuel distribution as claimed in claim 1 or 2, wherein the variation of the condition of spraying by nozzle is that fuel oil is caused by the pressure reduction that nozzle sprays.
4, a kind of method as any one described fuel distribution in claim 1 or 3, wherein said injection conditions are to change being higher than to work under the predetermined rotating speed according to motor.
5, a kind of described method of combination as claim 2 or claim 2 and 3, its intermediate fuel oil is being discharged when importing gas through metering, and needs at whole engine loads almost that fuel oil all is to be kept above predetermined pressure reduction of gas in the scope.
6, a kind of method as claimed in claim 5, wherein gas pressure causes that fuel oil discharges by nozzle.
7, a kind of as claim 5 or 6 described methods, wherein fuel pressure is to increase when being higher than described predetermined value according to the needs to engine load, thereby gas pressure also correspondingly increases.
8, the method of a kind of controlling combustion engine firing chamber fuel distribution, comprise and be emitted on the fuel oil and the gaseous matter through metering of discharging under the fuel emission pressure, the fuel-air mixture that forms is like this entered the firing chamber with the discharge pressure of mixed gas by nozzle, pressure reduction between adjusting fuel oil and gaseous matter is to need to keep in the scope basic pressure reduction uniformly at whole engine loads, and at the pressure of between the draining period of firing chamber, controlling fuel-air mixture, described pressure is increased in the time need being higher than predetermined value to engine load, thereby the fuel oil penetration that enters the firing chamber is also deepened.
9, a kind of method of dispense fuel as claimed in claim 8 increases when wherein the adjusting of fuel pressure is higher than described predetermined value along with the needs to engine load.
10, a kind of method as any one described dispense fuel in the above-mentioned claim, the wherein said predetermined value that engine load is needed are to reach predetermined rotating speed by motor to determine.
11, a kind of internal combustion engine fuel injection system, wherein great amount of fuel oil is can form under the pressure of oil gas inflation to measure after entering gas, it is characterized in that fuel oil is to adjust to a predetermined value, gas pressure is adjusted according to fuel pressure, to keep pressure reduction predetermined between fuel oil and gas during the fuel measurement.
12, a kind of fuel injection system as claimed in claim 11, the fuel pressure that wherein is conditioned can be selected at least two predetermined values.
When 13, a kind of fuel injection system as claimed in claim 11, the fuel pressure that wherein is conditioned are higher than a predetermined value along with the needs to engine load and increase.
When 14, a kind of fuel injection system as claimed in claim 11, the fuel pressure that wherein is conditioned are higher than a predetermined value along with the rotating speed of motor and increase.
15, the method for a kind of controlling combustion engine firing chamber fuel distribution, be included in the outside fuel oil of preparing through metering in firing chamber, gas sprays into the firing chamber with described fuel oil through metering by nozzle by fuel oil is exerted pressure, according to the needs of engine load are controlled described gas pressure, when to the needs of load when being lower than predetermined value gas pressure be in first pressure level and penetrate first degree of depth so that enter the fuel oil of firing chamber, gas pressure is in second pressure level to increase the depth of penetration of the fuel oil that enters the firing chamber when the needs to load are higher than described predetermined value.
16, a kind of method of control fuel distribution as claimed in claim 15, its intermediate fuel oil enter gas when forming the oil gas inflation through measuring.
17, in a kind of internal combustion engine fuel injection system, fuel oil is through being metered into gas, and push motor by gas pressure, the compound regulator of a kind of fuel oil and gas pressure, comprise second device that fuel pressure is transferred to first device of first predetermined value that is higher than atmospheric pressure and gas pressure is transferred to the predetermined value that is higher than fuel pressure.
18, assemblying body as claimed in claim 17, wherein first device comprises, a fuel chamber and an air cavity of being separated by a wall that can move, a fuel inlet and the fuel flow returns mouth in described fuel chamber, can open the device of described fuel flow returns mouth with described wall selectively to a direction motion, a biased member that stops this wall to described direction motion, a ventilating hole that allows the air under the barometric pressure to enter in described air cavity moves to open refluxing opening in the time of allowing the fuel pressure of this wall in this fuel chamber to be higher than described first predetermined pressure under the air acting in conjunction in described biased member and this air cavity under the barometric pressure.
19, assemblying body as claimed in claim 18, wherein said second device comprises, an air chamber and another fuel chamber of being separated by another wall that can move, described another fuel chamber communicates with the fuel chamber of first device, a gas inlet and a gas bypass mouth are arranged in described air chamber, can open the device of described air by-pass mouth with described another wall selectively towards a direction motion, promote described wall another biased member to described direction motion, under described another biased member and the effect of described air cavity internal pressure, when the pressure in this air cavity was higher than the described predetermined value of another fuel chamber internal pressure, described by-pass port was opened.
20, as any one described assemblying body in the claim 17 to 19, the device that selectively increases the power that is applied by biased member is arranged wherein, to increase by the described first predetermined fuel pressure.
21, a kind of internal-combustion engine has a fuel injection system that carries out work according to any one described method in the claim 1 to 10,15 or 16.
22, a kind of internal-combustion engine has one as any one described fuel injection system in claim 11 to 14 and 17 to 20.
23, a kind of as claim 21 or 22 described internal-combustion engines, wherein motor is a two stroke engine.
24, a kind of be used for automobile as any one described internal-combustion engine of claim 21 to 23.
25, a kind of as any one described internal-combustion engine in the claim 21 to 23, they are outboard marine engine.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AUPH01560 | 1985-07-19 | ||
| AUPH156085 | 1985-07-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN86105113A true CN86105113A (en) | 1987-03-18 |
| CN1015277B CN1015277B (en) | 1992-01-01 |
Family
ID=3771186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN86105113A Expired CN1015277B (en) | 1985-07-19 | 1986-07-19 | Improvements relating to fuel injection to internal combustion engines |
Country Status (18)
| Country | Link |
|---|---|
| JP (1) | JP2669820B2 (en) |
| KR (1) | KR940001927B1 (en) |
| CN (1) | CN1015277B (en) |
| AU (1) | AU594357B2 (en) |
| BE (1) | BE905149A (en) |
| BR (1) | BR8606798A (en) |
| CA (1) | CA1271948A (en) |
| DE (1) | DE3690389C2 (en) |
| ES (1) | ES2000700A6 (en) |
| FR (1) | FR2585079B1 (en) |
| GB (1) | GB2188369B (en) |
| IN (1) | IN167833B (en) |
| IT (1) | IT1197786B (en) |
| MX (1) | MX174369B (en) |
| NL (1) | NL8620298A (en) |
| PH (1) | PH26109A (en) |
| SE (1) | SE466864B (en) |
| WO (1) | WO1987000578A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH086661B2 (en) * | 1988-07-01 | 1996-01-29 | トヨタ自動車株式会社 | Fuel injection device for internal combustion engine |
| DE69029419T2 (en) * | 1989-04-13 | 1997-06-26 | Yamaha Motor Co Ltd | Internal combustion engine and fuel injection control method therefor |
| US4955350A (en) * | 1989-06-21 | 1990-09-11 | General Motors Corporation | Fuel injection |
| ATE166136T1 (en) * | 1991-10-21 | 1998-05-15 | Orbital Eng Pty | METHOD AND DEVICE FOR DOSING FUELS |
| JP3554167B2 (en) * | 1997-12-02 | 2004-08-18 | 株式会社日立製作所 | Control device for in-cylinder injection engine |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1149321A (en) | 1912-03-30 | 1915-08-10 | Charles Whiting Baker | Method of and apparatus for delivering liquid fuel to oil-engines. |
| US1166937A (en) | 1912-06-01 | 1916-01-04 | Busch Sulzer Bros Diesel Engine Co | Means for regulating combustion-engines. |
| DE867327C (en) * | 1940-10-31 | 1953-02-16 | Nsu Werke Ag | Mixture-compressing two-stroke engine with internal mixture formation and external ignition |
| DE916365C (en) * | 1943-02-06 | 1954-08-09 | Daimler Benz Ag | Compressed air injection engine with external ignition |
| US2753217A (en) * | 1952-11-08 | 1956-07-03 | Texas Co | Fuel injection nozzle for internal combustion engine |
| JPS58155269A (en) * | 1981-12-31 | 1983-09-14 | オ−ビタル・エンジン・カンパニイ・プロプライエタリ・リミテイツド | Method and device for supplying engine with liquid fuel by gas pressure |
| JPS5960069A (en) * | 1982-09-30 | 1984-04-05 | Mitsubishi Motors Corp | Fuel supplying device for engine |
| JPS59206672A (en) * | 1983-05-11 | 1984-11-22 | Toyota Motor Corp | Fuel injection valve of internal-combustion engine |
| US4685432A (en) * | 1983-10-31 | 1987-08-11 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Method and device for forming mixture gas in direct injection type internal combustion engine |
-
1986
- 1986-07-17 DE DE3690389T patent/DE3690389C2/en not_active Expired - Fee Related
- 1986-07-18 JP JP61504189A patent/JP2669820B2/en not_active Expired - Fee Related
- 1986-07-18 KR KR1019870700241A patent/KR940001927B1/en not_active IP Right Cessation
- 1986-07-18 IN IN644/DEL/86A patent/IN167833B/en unknown
- 1986-07-18 CA CA000514178A patent/CA1271948A/en not_active Expired - Fee Related
- 1986-07-18 NL NL8620298A patent/NL8620298A/en unknown
- 1986-07-18 WO PCT/AU1986/000203 patent/WO1987000578A1/en active Application Filing
- 1986-07-18 IT IT21181/86A patent/IT1197786B/en active
- 1986-07-18 GB GB8706101A patent/GB2188369B/en not_active Expired - Fee Related
- 1986-07-18 AU AU61476/86A patent/AU594357B2/en not_active Ceased
- 1986-07-18 ES ES8600416A patent/ES2000700A6/en not_active Expired
- 1986-07-18 BR BR8606798A patent/BR8606798A/en not_active IP Right Cessation
- 1986-07-18 PH PH34037A patent/PH26109A/en unknown
- 1986-07-19 CN CN86105113A patent/CN1015277B/en not_active Expired
- 1986-07-21 MX MX003206A patent/MX174369B/en unknown
- 1986-07-21 FR FR868610572A patent/FR2585079B1/en not_active Expired - Fee Related
- 1986-07-22 BE BE0/216956A patent/BE905149A/en not_active IP Right Cessation
-
1987
- 1987-03-19 SE SE8701143A patent/SE466864B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| IN167833B (en) | 1990-12-29 |
| SE8701143D0 (en) | 1987-03-19 |
| MX174369B (en) | 1994-05-11 |
| DE3690389C2 (en) | 1996-08-29 |
| AU6147686A (en) | 1987-02-10 |
| ES2000700A6 (en) | 1988-03-16 |
| IT8621181A1 (en) | 1988-01-18 |
| SE8701143L (en) | 1987-03-19 |
| BE905149A (en) | 1986-11-17 |
| GB8706101D0 (en) | 1987-04-15 |
| FR2585079B1 (en) | 1991-06-21 |
| DE3690389T1 (en) | 1987-07-16 |
| WO1987000578A1 (en) | 1987-01-29 |
| GB2188369B (en) | 1990-02-21 |
| PH26109A (en) | 1992-02-06 |
| IT8621181A0 (en) | 1986-07-18 |
| NL8620298A (en) | 1987-06-01 |
| KR880700153A (en) | 1988-02-20 |
| CA1271948A (en) | 1990-07-24 |
| BR8606798A (en) | 1987-10-13 |
| CN1015277B (en) | 1992-01-01 |
| JP2669820B2 (en) | 1997-10-29 |
| GB2188369A (en) | 1987-09-30 |
| FR2585079A1 (en) | 1987-01-23 |
| IT1197786B (en) | 1988-12-06 |
| SE466864B (en) | 1992-04-13 |
| AU594357B2 (en) | 1990-03-08 |
| KR940001927B1 (en) | 1994-03-11 |
| JPS63500324A (en) | 1988-02-04 |
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