CN101351636B - Injection system for an internal combustion engine - Google Patents
Injection system for an internal combustion engine Download PDFInfo
- Publication number
- CN101351636B CN101351636B CN2006800434019A CN200680043401A CN101351636B CN 101351636 B CN101351636 B CN 101351636B CN 2006800434019 A CN2006800434019 A CN 2006800434019A CN 200680043401 A CN200680043401 A CN 200680043401A CN 101351636 B CN101351636 B CN 101351636B
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- China
- Prior art keywords
- fuel
- pump
- plunger
- actuation chamber
- chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000002347 injection Methods 0.000 title claims abstract description 29
- 239000007924 injection Substances 0.000 title claims abstract description 29
- 238000002485 combustion reaction Methods 0.000 title abstract description 10
- 239000000446 fuel Substances 0.000 claims abstract description 56
- 230000002000 scavenging effect Effects 0.000 claims abstract description 18
- 238000010304 firing Methods 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 5
- 230000007246 mechanism Effects 0.000 claims description 4
- 239000002828 fuel tank Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 239000003380 propellant Substances 0.000 claims description 2
- 238000013021 overheating Methods 0.000 abstract 1
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 description 24
- 239000007789 gas Substances 0.000 description 22
- 239000002360 explosive Substances 0.000 description 10
- 238000007599 discharging Methods 0.000 description 7
- 239000003921 oil Substances 0.000 description 6
- 239000007921 spray Substances 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000002283 diesel fuel Substances 0.000 description 3
- 230000002269 spontaneous effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Images
Classifications
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Landscapes
- Fuel-Injection Apparatus (AREA)
- Exhaust-Gas Circulating Devices (AREA)
Abstract
The invention relates to an injection system (1) for an internal combustion engine, especially an internal combustion engine operated with liquefied gas as the fuel or as a fuel component, comprising one injection device (2) per cylinder for directly injecting fuel into the combustion chamber. Said system also comprises a fuel supply system (3) which has at least one fuel reservoir and an oscillating pump element, configured as a displacer, for delivering the fuel. Said pump element (5) can be hydraulically actuated by a secondary medium and the pump element (5) adjoins an actuation chamber (9), impinged upon with the secondary medium, a hydraulic conduit (8) carrying the secondary medium leading to the actuation chamber, and a main pump (7) being arranged in the hydraulic conduit (8). The aim of the invention is to prevent the secondary medium from overheating. For this purpose, a scavenging conduit (18) leads to the actuation chamber (9). A shut-off element (19) is disposed in the scavenging conduit and the actuation chamber (9) can be scavenged with the secondary medium during at least one injection interval.
Description
The present invention relates to a kind of ejecting system that is used for explosive motor, especially act as a fuel with liquid gas or explosive motor that propellant composition drives, it comprises injection apparatus that directly fuel is sprayed into the firing chamber of every cylinder, also comprise a fuel system, described fuel system has at least one fuel tank and one and is used for the reciprocating plunger pump element of transfer the fuel, can be by secondary media with hydraulic way actuating pump element, and pump element is adjacent with an actuation chamber that is subjected to the secondary media effect, the hydraulic pipe line of feeding secondary medium feeds among the actuation chamber, and a main pump is installed in the hydraulic pipe line.The invention still further relates to a kind of being used for the liquid gas is the injection apparatus of the explosive motor of fuel driven, comprises a needle-valve that is subjected to the return spring effect in closing direction, and needle-valve has suitable structure, can it be opened by fuel; Described system also comprises a shell with at least one fuel flow channel, and a safety check of opening after being subjected to spring action on the injection direction wherein is installed.In addition, the invention still further relates to a kind of making and utilize liquid gas, especially utilize the method for the self-combusting type engine operation of dimethyl ether driving.The invention still further relates to a kind of explosive motor that is used for carrying out this method.
It is the ejecting system of the explosive motor of fuel driven that the model utility specification that is numbered AT001.623U1 discloses a kind of being used for the liquid gas, and described motor has one with the secondary media actuating, is used for the reciprocating plunger pump element of transfer the fuel.Described pump element and actuation chamber are adjacent, and actuation chamber only links to each other with a hydraulic tube that is used for the feeding secondary medium.Because secondary media can't circulate in actuation chamber, it is overheated therefore may secondary media to occur.
Liquid gas, especially DME (dimethyl ether) be regarded as spontaneous combustion and fuel oil directly spray into the firing chamber alternative fuel, the NO that is produced
xWith granular material discharged few.Certainly also there are some problems,, can occur leaking in inside, firing chamber after the shutdown because the viscosity of liquefied gas as fuel is lower.These leakages are a kind of security risks, and may cause motor impaired.
The patent specification that is numbered US6.189.517B1 discloses a kind of injection apparatus that is used for liquefied gas as fuel, has a needle-valve of inwardly opening.Effectively avoid leaking by the safety check that is installed in the fuel flow channel.In case fuel pressure drops under the setting level, just when killing engine, safety check will the block fuel flow road passes through the cross section.At this moment will in system, keep certain residual pressure, and allow fuel keep liquid.Shortcoming is: inwardly the needle-valve of opening only allows very little spray orifice cross section, and how much limit are limited with ultimate strength, so has limited the raising of jet pressure.
The application specification that is numbered EP0246220A1 also discloses a kind of injection apparatus that is used for the tep reel valve of diesel engine.Shortcoming is also arranged when yet the injection apparatus of poppet valve structural type is used for diesel oil, can be in the poppet valve region form and cause the sediments that leaks.
The burning quality of diesel engine directly depends on the atomizing of liquid fuel quality, also depend on fuel vapour the vaporization degree and with the situation of mixing of airborne oxygen.The extra-lnigh tension of about 2000 crust of known use sprays into diesel oil among the firing chamber, can improve atomizing effect.Though adopt these measures can reach low-down fume emission coefficient,, need the special-purpose ejecting system of user cost costliness because jet pressure is very high.
The harmful matter that known in addition oxygenated fuel (for example dimethyl ether DME or other alcohols) is produced when burning is less than the material that fuel combustion produced that does not contain fixed oxygen.
The model utility specification that is numbered AT001.018U1 has been announced a kind of method for preparing spontaneous combustion type fuel, is about to a small amount of dimethyl ether and mixes among the fuel.
In addition, the patent announcement that is numbered AT002.958U2, AT001.924U2, AT408.130B, AT408.131B and AT001.623U1 has announced that also some are used for the liquid gas is the ejecting system of the explosive motor of fuel driven.
The vapor pressure of the high cetane number liquefied gas as fuel of up-to-date exploitation (for example dimethyl ether) under ambient temperature conditions is lower than 30 crust, it can be used as spontaneous combustion type fuel.Owing to have fixed oxygen, therefore use dimethyl ether to act as a fuel and be very beneficial for improving firing effect, reduce discharging.
The known in addition NO that can reduce explosive motor by exhaust gas recirculation
xDischarging.Can reduce combustion temperature by exhaust gas recirculation, thereby obviously reduce NO
xDischarging.In order to reach this effect, in the motor that uses traditional fuel work, need than higher ER EGR Rate, be approximately 40% to 60%, so that with NO
xDischarging reduces 1g/kWh to 2g/kWh.For traditional fuel, owing to can produce carbon black pellet, so the use amount of EGR gas is restricted.For with NO
xDischarging reduces 1g/kWh to 2g/kWh, needs higher relatively ER EGR Rate in traditional explosive motor, greatly between 40% to 60%.
Task of the present invention is, avoids these shortcomings, and avoids the secondary media generation in the actuation chamber overheated.Another task of the present invention is, realizes higher injection rate, occurs after avoiding simultaneously killing engine leaking in the firing chamber.In addition, the discharging that further reduces the self-combusting type motor also is a task of the present invention.
According to of the present invention, the method that realizes this purpose is as follows: among a scavenging air pipe access actuation chamber, a closing mechanism device is installed in scavenging air pipe, can at least one injection interval, use secondary media that actuation chamber is carried out scavenging, and in the process of actuation chamber being carried out scavenging, hydraulic pipe line can be linked to each other with a return line.
Can constitute closing mechanism device towards the safety check that actuation chamber is opened by one.
A kind of especially simply enforcement in the pattern of the present invention, main pump has at least one pump piston adjacent with pressure chamber, and hydraulic pipe line links to each other with pressure chamber, and pressure chamber can be linked to each other with return line in a position of pump plunger at least; Pump plunger has a control oil groove, and this control oil groove is crossed the control oilhole that links to each other with reflow pipe at least one travel position of pump plunger, and described control oilhole is holding among the pump barrel shell wall of pump plunger.
The plunger that the structure of pump element can be into multistage plunger or have coherent same diameter.
Preferably provide secondary media to the scavenging pipeline by a pressure source.In the injection interval process, the fluid of opening between hydraulic pipe line and the return line by the pump plunger of main pump connects, and the control oil groove of pump plunger is then crossed the hole that links to each other with reflow pipe in the pump barrel shell wall of pump plunger.So just make secondary media between scavenging air pipe and hydraulic tube, to flow through, thereby actuation chamber is carried out scavenging.
In order to realize higher injection rate, needle-valve adopts the structure of outwards opening, and preferably has a valve disc.
The needle-valve that is designed to the poppet valve structure can provide bigger injection cross section, thereby can spray into more fuel quantity in the short period of time, helps combustion process like this.
The needle-valve that use has valve disc also has the advantage that the injection cross section is not limited by nozzle bore quantity and size, therefore can realize higher flow rate under lower jet pressure.Umbrella spray bundle helps the distribution of fuel in the firing chamber.
Because the burning of liquefied gas as fuel does not have the carbon deposition thing, so do not form any sediments in the valve disc region.
Waste gas can be transmitted back among the firing chamber, realize reducing the purpose of discharging, and ER EGR Rate be less than 40%, especially less than 30%, preferably less than 20%.ER EGR Rate is defined as the ratio of EGR gas quality and charge-air mass in the cylinder.Wonderful discovery is: when using dimethyl ether, need only ER EGR Rate between 10%～20%, the minimizing amplitude of nitrogen oxide just can be equal to the effect that ER EGR Rate reached of using conventional diesel fuel and 40～60%.Why this effect can be arranged, may be interpreted as the fixed oxygen that lacks in direct carbon bond and the dimethyl ether.
Below will explain in detail the present invention according to accompanying drawing.Relevant drawings is as follows
Implement pattern for first kind of accompanying drawing 1 ejecting system of the present invention;
Implement pattern for second kind of accompanying drawing 2 ejecting systems of the present invention;
The sectional arrangement drawing of accompanying drawing 3 injection apparatus of the present invention after the needle-valve closure;
Injection apparatus after accompanying drawing 4 needle-valves are opened; And
The graph of a relation of accompanying drawing 5 ER EGR Rates and NOx discharge amount.
Be respectively the ejecting system 1 of explosive motor shown in attached Fig. 1 and 2, comprise the injection apparatus 2 that is used for liquefied gas as fuel is directly sprayed into the engine chamber that figure do not draw.By fuel system 3 liquefied gas as fuel is flowed to injection apparatus 2.Use the safety check of opening in the reference character 20 sign throughput directions.Extract liquefied gas as fuel by the petrolift of not drawing among the figure from fuel tank.
Make pump element 5 action by the actuator 6 that self has an oil hydraulic circuit, described actuator has a main pump 7 and a hydraulic pipe line 8, and this hydraulic pipe line feeds among the actuation chamber 9 adjacent with pump element 5.Hydraulic pipe line 8 is from main pump 7, provides secondary media by sucking with reflow pipe 10 to main pump from a hydraulic container 11.Main pump 7 is the plunger pump structure, has a pump plunger 13 that activates by cam 12, and plunger can move in pump barrel 14.In the to-and-fro motion process of plunger pump 13, the control oil groove 15 of plunger pump 13 is crossed the hole 16 on the pump barrel 14 barrel 14a, thereby the formation fluid is connected between the pressure chamber 17 that sucks with reflow pipe 10 and main pump 7.
Feed the scavenging air pipe 18 that also has of actuation chamber 9, a safety check 19 wherein is installed.For example, scavenging air pipe 18 can link to each other with hydraulic container 11 by another pump.
If hole 16 opened by pump plunger 13, just can carry out scavenging by 18 pairs of actuation chamber of scavenging air pipe 9, actuated media and actuation chamber 9 are cooled off, thus can prevent overheated.
In the embodiment shown in Figure 1, control by 21 pairs of secondary media of control oil groove of pump plunger 13.Rotate pump plunger 13 and just can change control constantly.
An Electromagnetically actuated control valve 22 is arranged in the embodiment shown in Figure 2, can control the control moment of secondary media by this valve.
A needle-valve 110 of outwards opening and have a valve disc 113 also is installed in housing 102, needle-valve is remained in the operating position by closing spring 111.Fuel flow channel 104 feeds among the spring housing 112, and the active force that overcomes return spring 111 acts on the needle-valve 110.Injection apparatus 101 is with the difference of conventional diesel injection apparatus: needle-valve is outwards opened, and has a valve disc 113.
Under static state, needle-valve 110 and safety check 105 are all closed.When the pressure in the injection apparatus 101 had surpassed the value that sets by valve seat 109 and spring 106, safety check 105 will be opened, and liquefied gas as fuel enters spring housing 112 under pressure.
Between twice injection, the pressure in the spring housing 112 is not enoughly so that needle-valve 110 unlatchings little.And be elevated to enough when big when fuel pressure, needle-valve 110 is opened, fuel just can enter among the firing chamber.
As long as use less relatively EGR gas amount, just can realize obviously reducing NO
xTherefore the purpose of discharge amount needn't allow other noxious emission increase, for example hydrocarbon or carbon monoxide emission.
This very little ER EGR Rate can obviously reduce the size of gas recirculation system, and helps to reduce the motor loss, especially by exhaust gas recirculation and the caused motor loss of pumping loss.
Claims (7)
- One kind to be used for the liquid gas be the ejecting system (1) of the motor that drives of fuel or propellant composition, comprise that one in every cylinder is used to inject fuel directly into the injection apparatus (2) in the firing chamber, also comprise a fuel system (3), described fuel system has at least one fuel tank and a reciprocating plunger pump element (5) that is used for transfer the fuel, can be by secondary media with hydraulic way actuating pump element (5), and reciprocating plunger pump element (5) is adjacent with an actuation chamber (9) that is subjected to the secondary media effect, the hydraulic pipe line of feeding secondary medium (8) feeds among the actuation chamber, and a main pump (7) is installed in the hydraulic pipe line (8), it is characterized in that, scavenging pipeline (18) feeds among the actuation chamber (9), and a closing mechanism device (19) is installed in the scavenging pipeline, can in an injection interval, uses secondary media that actuation chamber (9) is carried out scavenging at least.
- 2. ejecting system according to claim 1 (1) is characterized in that, in the scavenging process of actuation chamber (9), hydraulic pipe line (8) can link to each other with reflow pipe (10), and reflow pipe is exactly the suction pipe of main pump (7).
- 3. ejecting system according to claim 1 and 2 (1), it is characterized in that, main pump (7) has a pump plunger (13) adjacent with pressure chamber (17) at least, and hydraulic pipe line (8) links to each other with pressure chamber (17), pressure chamber (17) can be linked to each other with reflow pipe (10) at least one position of pump plunger (13).
- 4. ejecting system according to claim 3 (1), it is characterized in that, pump plunger (13) has a control oil groove, this control oil groove is crossed the control oilhole (16) that links to each other with reflow pipe (10) at least one travel position of pump plunger (13), described control oilhole is holding among the pump barrel shell wall (14a) of pump plunger (13).
- 5. ejecting system according to claim 1 and 2 (1) is characterized in that, closing mechanism device (19) is made of a safety check of opening towards actuation chamber (9).
- 6. ejecting system according to claim 1 and 2 (1) is characterized in that, reciprocating plunger pump element (5) is the differential plunger structure.
- 7. ejecting system according to claim 1 and 2 (1) is characterized in that, can provide secondary media to scavenging pipeline (18) by a pressure source.
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ATA1903/2005 | 2005-11-24 | ||
| AT0190305A AT500739A3 (en) | 2005-11-24 | 2005-11-24 | METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE |
| ATA640/2006 | 2006-04-13 | ||
| AT0064006A AT501249B1 (en) | 2006-04-13 | 2006-04-13 | INJECTION |
| ATA1305/2006 | 2006-08-03 | ||
| AT0130506A AT501831A1 (en) | 2006-08-03 | 2006-08-03 | INJECTION DEVICE |
| PCT/AT2006/000467 WO2007059543A1 (en) | 2005-11-24 | 2006-11-15 | Injection system for an internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101351636A CN101351636A (en) | 2009-01-21 |
| CN101351636B true CN101351636B (en) | 2010-12-01 |
Family
ID=36037219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006800434019A Expired - Fee Related CN101351636B (en) | 2005-11-24 | 2006-11-15 | Injection system for an internal combustion engine |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101351636B (en) |
| AT (1) | AT500739A3 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014238071A (en) * | 2013-06-10 | 2014-12-18 | いすゞ自動車株式会社 | Mixed fuel supply system for internal combustion engine, vehicle and mixed fuel supply method for internal combustion engine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4410138A (en) * | 1981-12-31 | 1983-10-18 | Cummins Engine Company, Inc. | Unit injector cooled by timing control fluid |
| US5020494A (en) * | 1987-08-12 | 1991-06-04 | AVL Gesellschaft fur Verbrennungskraftmaschinen und Messtechnik m.b.H. Prof.Dr.Dr.h.c. Hans List | Method and device for feeding fuel into the combustion chamber of an internal combustion engine |
| US5383647A (en) * | 1993-03-19 | 1995-01-24 | Daimler-Benz Ag | Gas-injection valve for internal combustion engine |
| US5740782A (en) * | 1996-05-20 | 1998-04-21 | Lowi, Jr.; Alvin | Positive-displacement-metering, electro-hydraulic fuel injection system |
| US6176225B1 (en) * | 1998-06-05 | 2001-01-23 | Avl List Gmbh | Injection system |
| CN1470758A (en) * | 2003-06-26 | 2004-01-28 | 上海交通大学 | High-efficiency, ultra-low-emission combustion system for DME engines |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005320948A (en) * | 2004-04-08 | 2005-11-17 | Toyota Industries Corp | Premixed compression self-ignition engine and operation method thereof |
-
2005
- 2005-11-24 AT AT0190305A patent/AT500739A3/en active IP Right Grant
-
2006
- 2006-11-15 CN CN2006800434019A patent/CN101351636B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4410138A (en) * | 1981-12-31 | 1983-10-18 | Cummins Engine Company, Inc. | Unit injector cooled by timing control fluid |
| US5020494A (en) * | 1987-08-12 | 1991-06-04 | AVL Gesellschaft fur Verbrennungskraftmaschinen und Messtechnik m.b.H. Prof.Dr.Dr.h.c. Hans List | Method and device for feeding fuel into the combustion chamber of an internal combustion engine |
| US5383647A (en) * | 1993-03-19 | 1995-01-24 | Daimler-Benz Ag | Gas-injection valve for internal combustion engine |
| US5740782A (en) * | 1996-05-20 | 1998-04-21 | Lowi, Jr.; Alvin | Positive-displacement-metering, electro-hydraulic fuel injection system |
| US6176225B1 (en) * | 1998-06-05 | 2001-01-23 | Avl List Gmbh | Injection system |
| CN1470758A (en) * | 2003-06-26 | 2004-01-28 | 上海交通大学 | High-efficiency, ultra-low-emission combustion system for DME engines |
Also Published As
| Publication number | Publication date |
|---|---|
| AT500739A2 (en) | 2006-03-15 |
| CN101351636A (en) | 2009-01-21 |
| AT500739A3 (en) | 2006-10-15 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101201 Termination date: 20181115 |