EP2115291B8 - Ventil, vorrichtung und verfahren zur erzeugung eines fluidpulses - Google Patents
Ventil, vorrichtung und verfahren zur erzeugung eines fluidpulses Download PDFInfo
- Publication number
- EP2115291B8 EP2115291B8 EP08707539A EP08707539A EP2115291B8 EP 2115291 B8 EP2115291 B8 EP 2115291B8 EP 08707539 A EP08707539 A EP 08707539A EP 08707539 A EP08707539 A EP 08707539A EP 2115291 B8 EP2115291 B8 EP 2115291B8
- Authority
- EP
- European Patent Office
- Prior art keywords
- fluid
- valve
- opening
- fluid outlet
- closing body
- 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.)
- Not-in-force
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 222
- 238000000034 method Methods 0.000 title claims description 21
- 239000000446 fuel Substances 0.000 claims description 65
- 238000002347 injection Methods 0.000 claims description 41
- 239000007924 injection Substances 0.000 claims description 41
- 238000001816 cooling Methods 0.000 claims description 11
- 239000002828 fuel tank Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 5
- 238000002485 combustion reaction Methods 0.000 description 10
- 230000001133 acceleration Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000012809 cooling fluid Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000007872 degassing Methods 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Classifications
-
- 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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
-
- 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
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
- F02M37/0023—Valves in the fuel supply and return system
-
- 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
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0047—Layout or arrangement of systems for feeding fuel
- F02M37/0052—Details on the fuel return circuit; Arrangement of pressure regulators
-
- 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
- F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
- F02M45/02—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts
-
- 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
- F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
- F02M45/02—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts
- F02M45/10—Other injectors with multiple-part delivery, e.g. with vibrating valves
-
- 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
- F02M53/00—Fuel-injection apparatus characterised by having heating, cooling or thermally-insulating means
- F02M53/04—Injectors with heating, cooling, or thermally-insulating means
- F02M53/043—Injectors with heating, cooling, or thermally-insulating means with cooling means other than air cooling
-
- 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
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/002—Arrangement of leakage or drain conduits in or from injectors
-
- 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
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/04—Means for damping vibrations or pressure fluctuations in injection pump inlets or outlets
-
- 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/21—Fuel-injection apparatus with piezoelectric or magnetostrictive elements
-
- 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/31—Fuel-injection apparatus having hydraulic pressure fluctuations damping elements
- F02M2200/315—Fuel-injection apparatus having hydraulic pressure fluctuations damping elements for damping fuel pressure fluctuations
-
- 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
- F02M51/0603—Injectors peculiar thereto with means directly operating the valve needle using piezoelectric or magnetostrictive operating means
-
- 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
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/0318—Processes
- Y10T137/0324—With control of flow by a condition or characteristic of a fluid
- Y10T137/0379—By fluid pressure
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/85978—With pump
- Y10T137/85986—Pumped fluid control
- Y10T137/86027—Electric
Definitions
- the invention relates to a valve and a device and a method for generating a fluid pulse using the valve.
- fuel injection valves Conventional valves for injecting fuel into the combustion chamber of an internal combustion engine, so-called fuel injection valves, are usually designed such that the fuel supplied to the fuel injection valve is discharged into the combustion chamber exclusively through a fuel injection port provided at the fuel injection valve.
- a fuel return line is provided in addition to a fuel supply, which allow a discharge of gas bubbles or cooperates with a pressure control device.
- Such a valve is known for example from DE 42 22 628 Al.
- the valve designed as a fuel injection valve is inserted into a stepped receiving bore.
- a fuel supply and a fuel discharge passage are connected to an annular space-like fuel chamber formed between the fuel injection valve and the stepped receiving bore. From the fuel chamber, the fuel passes through the screen body in the fuel injection valve.
- the fuel return passage is connected to a pressure regulator with which the pressure prevailing in the fuel chamber is regulated as a function of an air pressure prevailing in the combustion chamber.
- US Pat. No. 6,412,704 B2 describes a fuel injection valve in which the movement of a valve closing body is controlled with a hydraulic actuated by a piezoactuator.
- DE 198 47 388 A1 discloses a fuel injection system with fuel injectors that can be cooled by fuel.
- a branched off in the vicinity of a nozzle opening return line is provided.
- the return line is connected via a shut-off throttle valve with a high-pressure pump.
- the throttle valve is closed.
- the pressure generated by the high-pressure pump increases to the extent that a nozzle needle closing the nozzle opening lifts.
- a provided in the vicinity of the nozzle opening opening of the return line is always open.
- the pressure generated by the high-pressure pump also acts in the entire region of the return line.
- the return line or the return system has a certain elasticity. As a result, the volume flow of the injected fuel can not be exactly be controlled. This can lead to relatively large inaccuracies, especially in multiple injections.
- DE 196 39 149 C1 describes a similar injection nozzle. Also, a bypass line is connected via a throttle with a high-pressure line. However, the bypass line here branches off relatively far away from the nozzle opening. Again, the bypass line remains open when opening the nozzle opening. The same problems occur as in DE 198 47 388 A1.
- the fuel which is initially at rest, is accelerated during the injection process and expelled through the fuel orifice.
- inertial forces must be overcome.
- This time delay limits further shortening of the fuel injection valve opening times.
- Such a further shortening of the opening times would enable, in particular, multiple injections during a stroke of an internal combustion engine.
- Theoretical and experimental investigations have shown that with such multiple injections the combustion process can be further optimized.
- the object of the invention is to eliminate the disadvantages of the prior art.
- a valve, a device and a method for generating a fluid pulse are to be specified with which a high mass flow rate of the delivered fluid can be achieved even with extremely short fluid pulse times immediately after the opening of a fluid outlet opening.
- At least one fluid exhaust passage branches off from the fluid passage via at least one fluid outlet port provided near the fluid exhaust port, and means is provided in the valve housing for alternately opening the fluid exhaust port and the fluid outlet port such that the fluid passage is uninterrupted can be flowed through with fluid.
- the fluid outflow opening is alternately opened and the fluid outlet opening is closed or the fluid outflow opening is closed and the fluid outlet opening is opened.
- the proposed valve operates similar to a double valve, which comprises a main valve and a return valve, which are alternately opened and closed. This ensures that fluid is flowed through without interruption and at a substantially constant speed.
- the device provided according to the invention for alternately opening the fluid outflow opening and the fluid outlet opening merely causes a deflection of the fluid flowing out of the fluid passage alternately through the fluid outflow and the fluid outlet Fluid outlet openings.
- the fluid does not need to be accelerated as it passes through the fluid outlet port.
- the formation of pressure waves can be avoided.
- Significantly shortened opening times can be realized, wherein a high mass flow rate can be achieved immediately after the opening of the fluid outlet opening.
- the amount of fluid delivered through the fluid outlet port during a fluid pulse can be reproduced with high accuracy.
- valve closing body is received in the fluid passage.
- a further advantageous embodiment of the invention is that the valve closing body and the Fluidabströmöff- tion are formed corresponding to each other, so that the valve closing body in the first position, the Fluidab- strömö réelle closes and releases in the second position. It is thus possible to control the alternating opening of the fluid outlet opening and the fluid outlet opening by means of a single adjusting device.
- the adjusting device advantageously has a piezoactuator or a magnet coil for moving the valve closing body. It can be provided as a control device also a plurality of piezo actuators or a combination of a piezoelectric actuator with a hydraulic auxiliary device for moving the valve closing body. Such actuators allow short opening times and a high opening frequency.
- a device for cooling the fluid outflow channel is provided.
- This can be at least one or more cooling channels, which are used to dissipate heat to be flowed through with the fluid or a special cooling fluid.
- the heat dissipating fluid or cooling fluid can also be removed via the Fluidabströmkanal.
- the valve according to the invention may be a fuel injection valve.
- the fluid is liquid fuel.
- valve according to the invention may also be a pneumatic valve.
- the fluid is a gas, preferably air.
- the valve according to the invention is particularly suitable as a pneumatic control valve for generating extremely short compressed air pulses.
- a device for generating a fluid pulse, in which the fluid inlet opening of the valve according to the invention is connected to a pressure source via a first line, and wherein the fluid outlet channel is provided with a fluid supply via a second line provided downstream of the fluid outlet opening connected is.
- a suitable pressure gradient is set, so that an uninterrupted flow of the fluid through the fluid passage is achieved at a predetermined flow rate.
- the setting of a suitable pressure gradient can be done with conventional throttle valves or the like. will be realized. If a throttle valve is switched on in the second line, it is considered advantageous for it to produce a similar pressure gradient as when the fluid outlet opening is open. This ensures that, irrespective of whether the fluid outlet opening or the fluid outlet opening is just opened, there is always approximately the same pressure in the fluid passage,
- the fluid reservoir can be a gas reservoir, for example a liquefied gas vessel, or else the atmosphere. If the device is designed as a fuel injection system, the fluid supply is, for example, a fuel tank.
- the proposed device is conventional
- a device for generating a fluid pulse wherein the fluid inlet opening of the valve according to the invention is connected via a first line to a pressure source, and wherein the fluid outlet opening is connected via the second line to the pressure source.
- the pressure source may be a high pressure pump or a pressure vessel. If the device is designed as a pneumatic device, the pressure source may also be a compressor.
- a pressure gradient is generated between the first and the second line, which allows a continuous flow through the fluid passage.
- the pressure gradient can be generated, for example, by connecting the second line to a low pressure side of the pressure source.
- the proposed device is comparable to a conventional device for generating a fluid pulse, which is designed according to the principle of high pressure return.
- the adjusting device for moving the valve closing body comprises an electronic control device with which the opening time of the valve and the opening frequency can be controlled.
- the control can be done depending on measured or preset parameters.
- the electronic control device can in particular be designed such that it can be opened and closed several times during a cycle of an internal combustion engine, the fluid outlet opening.
- a method for generating a fluid pulse with the following steps:
- the formation of pressure waves in a device for generating a fluid pulse can be avoided. Furthermore, a high, in particular the maximum, mass flow rate of fluid can thus be conveyed through the fluid outlet opening directly after opening the valve closing body. This allows a significant reduction in opening hours. In this way, multiple injections can be realized in particular in fuel injection system and thus the combustion in an internal combustion engine can be further optimized.
- the fluid flow is due to the alternating opening of the Fluidabströmö réelle and the Fluid outlet alternately deflected.
- the fluid to be delivered through the fluid outlet opening need not be separately accelerated when a fluid pulse is generated. It can be used by the deflection of the fluid flow immediately contained therein kinetic energy and thus the fluid pulse can be generated.
- the proposed deflection of the fluid flow avoids the generation of undesired pressure waves in the device for generating fluid pulses in a simple manner.
- the valve closing body is used for alternately opening the fluid outlet opening and the fluid outlet opening.
- the valve closing body can be moved in the direction of the fluid outlet opening between a first and a second position back and forth.
- a piezoelectric actuator or a solenoid coil are used as adjusting device for moving the valve closing body. Such actuators allow very short opening times.
- the fluid outlet channel can be cooled.
- valve, the device, and the method for generating a fluid pulse have each been described with a fluid outlet port, a fluid exhaust port, and a fluid exhaust port.
- a fluid outlet port can also be provided with a valve disk or a be conically designed valve closing body be closed.
- valve closing body can also be provided with a valve disk or a be conically designed valve closing body be closed.
- at least one fluid outlet opening embodiments are possible, as are known in conventional valves, in particular fuel injection valves.
- valve and the apparatus and method for generating a fluid pulse have each been described with a fluid outflow port and a fluid outflow port.
- a single fluid outflow channel can be branched and connected to the fluid passage via a plurality of fluid outflow openings.
- the fluid outlet opening can also be designed as an annular channel, which is connected to at least one fluid outlet channel.
- a plurality of Fluidabströmkanäle are connected to a plurality of Fluidabströmö réelleen with the fluid passage. For example, two, three, four or five fluid outflow openings may be provided.
- a minimum overall cross-section, through which the fluid flows through the fluid outflow channel, is expediently larger than a maximum passage cross-section of the fluid outlet opening. This ensures that a sufficient flow velocity of the fluid is always provided.
- the openings through which the fluid flows have to be matched to one another in their flow cross-section such that a predetermined desired pressure prevails at the fluid outlet opening.
- valve 1 shows a valve with a valve closing body which is in a first position, 2, the valve of FIG. 1, wherein the valve closing body is in the second position,
- FIG. 2 is a plan view of FIG. 2
- FIG. 7 shows a device for generating a fluid pulse with high-pressure return
- Fig. 8 shows a device for generating a fluid pulse with low pressure feedback
- FIG. 9 shows a device according to FIG. 8 with cooling.
- a valve housing 1 with a fluid passage 2 which has a fluid outlet opening 3.
- a valve closing body 6 is provided, which with a (not shown here) adjusting device in the axial direction is movable back and forth.
- the valve closing body 6 has, at its free end, in this case a conical design, first closing surfaces 7, which are provided with second closing surfaces 8 provided on the valve housing 1 in this way Correspond that the fluid discharge opening 3 in a first position of the valve closing body 6 - as shown in Fig. 1 - can be closed.
- the valve closing body 6 also has projections 9 extending radially therefrom with third closing surfaces 10 provided thereon.
- the third closing surfaces 10 adjoin the first closing surfaces 7 or are arranged close to the first closing surfaces 7.
- the projections 9 and the third closing surfaces 10 provided thereon extend in the axial direction only over a lower portion of the valve closing body 6.
- valve closing body 6 in the first position in which the fluid outlet opening 3 is closed and at the same time the fluid outlet openings 4 are opened. In the first position, the fluid outlet openings 4 are opened and the fluid flows through the fluid passage 2 into the fluid outflow channels 5.
- Fig. 2 shows the valve closing body 6 in a second position, in which the first 7 and the second closing surfaces 8 are removed from each other.
- the third closing surfaces 10 close off the fluid outlet openings 4.
- the fluid 2 flows through the fluid passage 2 and through the fluid outlet opening 3.
- FIG. 3 shows a plan view according to FIG. 2. It can be seen from this that the fluid passage 2 is formed at least in sections in the manner of an annular space, at least in the region of the valve closing body 6.
- valve housing 1 upstream of the Fluid passage 2, a fluid inlet port for supplying fluid is provided.
- Fig. 4 shows schematically a further valve.
- the fluid passage 2 branches into a first branch al, at the end of which the fluid outlet opening is provided.
- a second branch a2 is arranged symmetrically with respect to an axis A of the fluid passage 2 to the first branch al, d. H.
- a first angle ⁇ 1 between a first axis Al of the first branch al and the axis A is the same as a second angle ⁇ 2 between the axis A and a second axis A2 of the second branch a2.
- the fluid outflow opening 4 is arranged downstream of a not shown here Fluidabströmkanal downstream.
- the fluid outlet opening 3 and the fluid outlet opening 4 are each provided with a valve (not shown here) with which the fluid outlet opening and the fluid outlet opening can alternately be opened or closed.
- the proposed further valve has the advantage that due to the symmetrical arrangement of the branches al, a2 with respect to the fluid passage 2 in a simple manner, the flow resistance downstream of the fluid passage 2 can be kept substantially constant, regardless of whether just the fluid outlet or the Fluidabströmö réelle is open. In this way, any generation of pressure waves can be avoided in a particularly simple manner.
- Fig. 5 shows a numerical simulation of the mass flow rate over time for a valve according to the prior art.
- the curve lit. a represents the mass flow rate over time in a first conduit connected to a fluid inlet port for delivery of fluid.
- the curve lit. b represents the course of the mass flow rate over time in a section of the fluid passage 2, which is located immediately in front of the fluid outlet opening 3.
- the mass flow rate continuously increases after opening the fluid outlet opening to a maximum value. Ie. immediately after opening the fluid outlet opening, the maximum mass flow rate is not reached.
- Fig. 6 shows a comparison of the mass flow rate over time for a conventional valve with a valve according to the invention.
- the curve lit. c gives the progression of the mass flow rate over time for a conventional valve and the curve lit.
- d the course of the mass flow rate for a valve according to the invention again. Which is clear from Fig. 6 is the
- a maximum value of the mass flow rate is achieved in the valve according to the invention already one millisecond after the opening of the fluid outlet opening.
- a particularly high mass flow rate can be reproducibly realized at considerably shortened opening times.
- the opening hours can be shortened considerably.
- the advantageous effects of the valve according to the invention are attributed in particular to the fact that the fluid does not have to be accelerated before opening the fluid outlet opening.
- a particularly ne fluid flow through the fluid passage 2 is merely deflected by the movement of the valve closing body 6.
- FIGS. 7 and 8 show devices for generating a fluid pulse using the example of a fuel injection system for liquid fuel.
- the device shown in Fig. 7 is a high pressure feedback fuel injection system.
- a fuel pump 12 is provided in a fuel tank 11, a fuel pump 12 is provided.
- the fuel pump is connected via a first line 15 to the fluid inlet opening of the fuel injection valve, generally designated by the reference numeral 16, with the interposition of a fuel filter 13 and a pressure regulator 14.
- the pressure regulator 14 is also connected to the fuel pump 12 with the interposition of a ramjet pump 14a.
- a second line 7 is connected to the fluid discharge opening (s) via the fluid discharge channel (s). Upstream, the second line 17 is connected to a high-pressure pump 18 which in turn is connected to a high-pressure container 19 which is switched into the first line 15.
- Fig. 8 shows a fuel injection system with low pressure feedback.
- the second line 17 is connected directly to the fuel tank 11.
- no high-pressure vessel is turned on.
- fluid is continuously pumped through the valve 16.
- the fluid is constantly under the required injection pressure or pressure for the generation of a fluid pulse.
- the proposed device for generating a fluid pulse can be used as a fuel injection system for injecting liquid fuel in internal combustion engines, in particular gasoline or diesel engines.
- the invention measure proposed valve or the device for generating a fluid pulse can also be used for pneumatic devices.
- a gas for example compressed air, is used as the fluid.
- the proposed valve enables the generation of extremely short opening times and thus extremely short valve pulses, which enable particularly fast and exact control of pneumatic devices.
- FIG. 9 shows a variant of the fuel injection system according to FIG. 8.
- a cooling device 20 is provided in the second line 17. With the cooling device 20, the fluid returned to the fuel tank 11, in particular liquid fuel, is cooled. It is thus prevents undesired heating of the fluid in the fuel tank 11.
- the cooling device 20 may be a conventional cooling device, for example a heat exchanger or the like. , act.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- Magnetically Actuated Valves (AREA)
- Fluid-Pressure Circuits (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Polarising Elements (AREA)
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007006415A DE102007006415A1 (de) | 2007-02-05 | 2007-02-05 | Ventil, Vorrichtung und Verfahren zur Erzeugnis eines Fluidpulses |
PCT/EP2008/000868 WO2008095674A1 (de) | 2007-02-05 | 2008-02-04 | Ventil, vorrichtung und verfahren zur erzeugung eines fluidpulses |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2115291A1 EP2115291A1 (de) | 2009-11-11 |
EP2115291B1 EP2115291B1 (de) | 2011-04-06 |
EP2115291B8 true EP2115291B8 (de) | 2011-09-14 |
Family
ID=39469570
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08707539A Not-in-force EP2115291B8 (de) | 2007-02-05 | 2008-02-04 | Ventil, vorrichtung und verfahren zur erzeugung eines fluidpulses |
Country Status (12)
Country | Link |
---|---|
US (1) | US20100089460A1 (de) |
EP (1) | EP2115291B8 (de) |
JP (1) | JP2010518299A (de) |
KR (1) | KR20090117893A (de) |
CN (1) | CN101652557A (de) |
AT (1) | ATE504733T1 (de) |
BR (1) | BRPI0808143A2 (de) |
CA (1) | CA2677433A1 (de) |
DE (2) | DE102007006415A1 (de) |
MX (1) | MX2009008260A (de) |
RU (1) | RU2009133331A (de) |
WO (1) | WO2008095674A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108787192B (zh) * | 2017-05-02 | 2020-07-17 | 苏州众慧合智能制造有限公司 | 自激脉冲式节能阀 |
CN114446819B (zh) * | 2020-11-05 | 2024-09-24 | 上海新微技术研发中心有限公司 | 具有安全装置的化学品喷液设备 |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3737100A (en) * | 1971-11-18 | 1973-06-05 | Allis Chalmers | Internally cooled unit injector |
DE2424800C2 (de) * | 1974-05-22 | 1986-01-02 | Daimler-Benz Ag, 7000 Stuttgart | Einspritzgerät zum Einspritzen einer zusätzlichen, geringen Kraftstoffmenge in eine nach dem Schichtladungsprinzip arbeitende fremdgezündete Verbrennungskraftmaschine |
US4471909A (en) * | 1981-12-18 | 1984-09-18 | Cummins Engine Company, Inc. | Miniaturized unit fuel injector |
US4410137A (en) * | 1981-12-31 | 1983-10-18 | Cummins Engine Company, Inc. | Miniaturized unit fuel injector employing hydraulically controlled timing |
GB8408752D0 (en) * | 1984-04-05 | 1984-05-16 | Lucas Ind Plc | Fuel injection nozzle unit |
US5040727A (en) | 1990-07-19 | 1991-08-20 | Cummins Engine Company, Inc. | Unit fuel injector with plunger minor diameter floating sleeve |
DE4117809A1 (de) * | 1991-05-31 | 1992-12-03 | Bosch Gmbh Robert | Kraftstoffeinspritzeinrichtung fuer brennkraftmaschinen und verfahren zur kraftstoffeinspritzung |
DE4222628A1 (de) | 1992-07-10 | 1994-01-13 | Bosch Gmbh Robert | Brennstoffeinspritzvorrichtung |
BR9401368A (pt) * | 1993-03-31 | 1994-11-01 | Cummins Engine Co Inc | Conjunto de válvula de três vias |
DE4332118A1 (de) | 1993-09-22 | 1995-03-23 | Bosch Gmbh Robert | Brennstoffeinspritzvorrichtung |
JPH08200183A (ja) * | 1995-01-23 | 1996-08-06 | Mitsubishi Heavy Ind Ltd | 内燃機関の燃料噴射弁 |
DE19639149C1 (de) * | 1996-09-24 | 1998-02-19 | Daimler Benz Ag | Kraftstoffeinspritzdüse |
US6029902A (en) | 1998-03-26 | 2000-02-29 | Cummins Engine Company, Inc. | Fuel injector with isolated spring chamber |
US6079641A (en) | 1998-10-13 | 2000-06-27 | Caterpillar Inc. | Fuel injector with rate shaping control through piezoelectric nozzle lift |
DE19847388B4 (de) * | 1998-10-14 | 2008-09-18 | Daimler Ag | Kraftstoffeinspritzsystem mit durch Kraftstoff kühlbaren Einspritzdüsen |
GB0000863D0 (en) * | 2000-01-15 | 2000-03-08 | Delphi Diesel Systems Ltd | Fuel injector |
AU2001231984A1 (en) | 2000-01-27 | 2001-08-07 | Keith Trevor Lawes | Fuel injector |
CA2405350C (en) * | 2002-09-26 | 2004-08-10 | S. Michael Baker | Liquid cooled fuel injection valve and method of operating a liquid cooled fuel injection valve |
US7021558B2 (en) * | 2003-04-25 | 2006-04-04 | Cummins Inc. | Fuel injector having a cooled lower nozzle body |
GB2402233B (en) * | 2003-05-30 | 2006-10-11 | Ford Global Tech Llc | Fuel injector supply |
CA2442601C (en) * | 2003-09-26 | 2005-05-24 | Westport Research Inc. | A fuel injection system and method of operation for a gaseous fuelled engine with liquid pilot fuel ignition |
ITMI20031927A1 (it) * | 2003-10-07 | 2005-04-08 | Med S P A | Elettroiniettore perfezionato per combustibile gassoso. |
US7198555B2 (en) * | 2004-12-30 | 2007-04-03 | Southwest Research Institute | Atomizer cooling by liquid circulation through atomizer tip holder |
-
2007
- 2007-02-05 DE DE102007006415A patent/DE102007006415A1/de not_active Withdrawn
-
2008
- 2008-02-04 EP EP08707539A patent/EP2115291B8/de not_active Not-in-force
- 2008-02-04 MX MX2009008260A patent/MX2009008260A/es not_active Application Discontinuation
- 2008-02-04 CN CN200880009634A patent/CN101652557A/zh active Pending
- 2008-02-04 DE DE200850003091 patent/DE502008003091D1/de active Active
- 2008-02-04 BR BRPI0808143 patent/BRPI0808143A2/pt not_active IP Right Cessation
- 2008-02-04 RU RU2009133331/06A patent/RU2009133331A/ru not_active Application Discontinuation
- 2008-02-04 CA CA 2677433 patent/CA2677433A1/en not_active Abandoned
- 2008-02-04 AT AT08707539T patent/ATE504733T1/de active
- 2008-02-04 WO PCT/EP2008/000868 patent/WO2008095674A1/de active Application Filing
- 2008-02-04 US US12/449,324 patent/US20100089460A1/en not_active Abandoned
- 2008-02-04 KR KR1020097018685A patent/KR20090117893A/ko not_active Application Discontinuation
- 2008-02-04 JP JP2009547614A patent/JP2010518299A/ja not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
EP2115291A1 (de) | 2009-11-11 |
BRPI0808143A2 (pt) | 2014-06-24 |
MX2009008260A (es) | 2010-03-15 |
EP2115291B1 (de) | 2011-04-06 |
DE102007006415A1 (de) | 2008-08-14 |
JP2010518299A (ja) | 2010-05-27 |
CA2677433A1 (en) | 2008-08-14 |
DE502008003091D1 (de) | 2011-05-19 |
CN101652557A (zh) | 2010-02-17 |
KR20090117893A (ko) | 2009-11-13 |
WO2008095674A1 (de) | 2008-08-14 |
US20100089460A1 (en) | 2010-04-15 |
RU2009133331A (ru) | 2011-03-20 |
ATE504733T1 (de) | 2011-04-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2183477B1 (de) | Verfahren zum einspritzen von kraftstoff in den brennraum einer brennkraftmaschine | |
DE102014005741B4 (de) | Dual-brennstoffeinspritzvorrichtung mit f-, a- und z-zumessöffnungssteuerung | |
EP1125046B1 (de) | Kraftstoffeinspritzsystem für eine Brennkraftmaschine mit einer Druckübersetzungseinheit | |
EP1485609A1 (de) | Vorrichtung zum einspritzen von kraftstoff an stationären verbrennungskraftmaschinen | |
DE112009002378T5 (de) | Kühlprinzip für Treibstoffinjektor und Treibstoffsystem, das denselben verwendet | |
WO2009132898A1 (de) | Überlagerte druckregelung des common-rail-systems | |
EP2206912B1 (de) | Kraftstoff-Injektor | |
WO2010023024A1 (de) | Injektor mit einem vor der zulaufdrossel angeordneten partikelfilter | |
DE102007042466B3 (de) | Einspritzsystem mit reduzierter Schaltleckage und Verfahren zum Herstellen eines Einspritzsystems | |
EP2686588A1 (de) | Ventileinrichtung zum schalten oder zumessen eines fluids | |
EP0982492B1 (de) | Vorrichtung zum Einspritzen von Brennstoff für eine Hubkolbenbrennkraftmaschine | |
EP2476890B1 (de) | Versorgungsvorrichtung mit einer Kraftstoffördereinrichtung und Verwendung einer dahingehenden Versorgungsvorrichtung | |
EP1126160B1 (de) | Einspritzventil für die Einspritzung von Kraftstoff in eine Verbrennungskraftmaschine | |
EP2115291B8 (de) | Ventil, vorrichtung und verfahren zur erzeugung eines fluidpulses | |
DE102013002758B4 (de) | Spülverfahren zur Durchführung mit einem Kraftstoffinjektor | |
WO2008110403A1 (de) | Verfahren und vorrichtung zur volumenstromregelung eines einspritzsystems | |
WO2007014733A1 (de) | Kraftstoff-einspritzsystem für eine brennkraftmaschine | |
WO2006058604A1 (de) | Kraftstoff-injektor | |
EP2807367B1 (de) | Vorrichtung zum einspritzen von kraftstoff in den brennraum einer brennkraftmaschine | |
DE19839579C1 (de) | Einspritzsystem | |
EP2807366B1 (de) | Vorrichtung zum einspritzen von kraftstoff in den brennraum einer brennkraftmaschine | |
WO2008122521A1 (de) | Ventil und einspritzanlage für eine brennkraftmaschine mit ventil | |
DE102012012890B4 (de) | Injektor | |
DE10015740C2 (de) | Einspritzventil für die Einspritzung von Kraftstoff in eine Verbrennungskraftmaschine | |
DE102007001365A1 (de) | Injektor mit Steuer- und Schaltkammer |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20090804 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR |
|
DAX | Request for extension of the european patent (deleted) | ||
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: DR.-ING. BUELENT UENSAL Inventor name: DURST, FRANZ |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D |
|
REF | Corresponds to: |
Ref document number: 502008003091 Country of ref document: DE Date of ref document: 20110519 Kind code of ref document: P |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 502008003091 Country of ref document: DE Effective date: 20110519 |
|
RAP2 | Party data changed (patent owner data changed or rights of a patent transferred) |
Owner name: FMP TECHNOLOGY GMBH FLUID MEASUREMENTS & PROJECTS |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: VDEP Effective date: 20110406 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110406 |
|
LTIE | Lt: invalidation of european patent or patent extension |
Effective date: 20110406 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FD4D |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110406 Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110406 Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110406 Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110706 Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110808 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110717 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110707 Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110406 Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110406 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110406 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110806 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110406 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110406 Ref country code: IE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110406 Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110406 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110406 Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110406 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110406 Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110406 |
|
26N | No opposition filed |
Effective date: 20120110 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 502008003091 Country of ref document: DE Effective date: 20120110 |
|
BERE | Be: lapsed |
Owner name: FMP TECHNOLOGY GMBH FLUID MEASUREMENTS & PROJECTS Effective date: 20120228 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20120229 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20120204 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20120229 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20120229 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20121031 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 502008003091 Country of ref document: DE Effective date: 20120901 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20120228 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20120204 Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20120229 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110706 Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20120901 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110406 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MM01 Ref document number: 504733 Country of ref document: AT Kind code of ref document: T Effective date: 20130204 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110406 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130204 Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20120204 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110406 Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20080204 |