EP1454052B1 - Kraftstoff-dosiervorrichtung - Google Patents
Kraftstoff-dosiervorrichtung Download PDFInfo
- Publication number
- EP1454052B1 EP1454052B1 EP02790469A EP02790469A EP1454052B1 EP 1454052 B1 EP1454052 B1 EP 1454052B1 EP 02790469 A EP02790469 A EP 02790469A EP 02790469 A EP02790469 A EP 02790469A EP 1454052 B1 EP1454052 B1 EP 1454052B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel
- pressure
- movable element
- chamber
- atmospheric pressure
- 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 - Lifetime
Links
- 239000000446 fuel Substances 0.000 title claims description 117
- 230000005291 magnetic effect Effects 0.000 claims description 30
- 238000002485 combustion reaction Methods 0.000 claims description 29
- 230000008859 change Effects 0.000 claims description 8
- 230000033001 locomotion Effects 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 239000012080 ambient air Substances 0.000 description 24
- 239000000203 mixture Substances 0.000 description 20
- 239000012528 membrane Substances 0.000 description 19
- 239000003570 air Substances 0.000 description 14
- 230000003993 interaction Effects 0.000 description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 230000007423 decrease Effects 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 238000001514 detection method Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Images
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
- F02M17/00—Carburettors having pertinent characteristics not provided for in, or of interest apart from, the apparatus of preceding main groups F02M1/00 - F02M15/00
- F02M17/02—Floatless carburettors
- F02M17/04—Floatless carburettors having fuel inlet valve controlled by diaphragm
Definitions
- the invention relates to a fuel metering device according to the preamble of claim 1/3.
- Such fuel metering devices are commonly used as diaphragm carburetors used for internal combustion engines.
- a diaphragm carburetor is by a during the intake in an intake passage or a crank chamber resulting negative pressure a movable membrane shifted, which opens a fuel lock and fresher Fuel can flow into a fuel chamber. From the fuel chamber the fuel flows via known control devices and Nozzles in the intake tract. where he mixes with incoming air and finally passed as a fuel-air mixture in a combustion chamber becomes.
- the carburetor determines the Deflection of the membrane, the delivered amount of fuel.
- the engine speed and the amount of fuel supplied is approximately in proportion, because at high engine speed per unit time much fuel sucked is reduced while at low engine speed and correspondingly reduced Number of strokes less fuel flowing.
- a fuel metering device in the location and / or the mobility of z. B. formed by a membrane movable element can be influenced by an active actuator, whose control is coupled to an ignition device of an internal combustion engine is. In this way, with the omission of an ignition pulse a superfluous feeding of fuel into the intake tract of the internal combustion engine be reduced or even completely prevented.
- the fuel-air mixture is supplied via a gasifier, the stoichiometrically correct composition the fuel-air mixture is an important prerequisite for complete combustion, optimum engine performance and a favorable one Emission behavior of the engine is.
- the concentration of oxygen per volume of air is generally depends on the respective altitude, in which an internal combustion engine for Use comes, with the oxygen concentration decreases at higher altitudes. Accordingly, the performance of the internal combustion engine is in use at higher altitudes due to the decreased oxygen concentration and a consequent deviation from the stoichiometrically correct composition of the fuel-air mixture lowered. This makes one new adjustment of the carburettor to adapt to the changed application height required to the the engine to be supplied optimum air-fuel ratio restore.
- the invention is based on the object, a fuel metering device specify with the internal combustion engines automatically adapted to different Insert heights can be operated.
- a fuel metering device has a fuel chamber, an openable and closable fuel inlet to the fuel chamber and at least one fuel outlet of the Fuel chamber to an intake passage of an internal combustion engine, wherein a part of a wall of the fuel chamber from a first, in dependence from a pressure difference between a pressure in the fuel chamber and an ambient air pressure movable element. that with a closing element for opening and closing the fuel inlet is coupled.
- a second In opposition to the first moving element is a second, depending on a change in the ambient air pressure and movable element in the direction of the first movable element angecrdnet.
- At the first movable element is a first magnetic Part, and on the second movable element, a second magnetic Part attached.
- the second movable element is at the decrease of Ambient air pressure approximates the first movable element, that is between the first magnetic part and the second magnetic Part of a magnetic interaction amplifies, as a result of that first movable element depending on the ambient air pressure for actuation of the closing element is set in motion, so that a fuel quantity, the the intake passage for a predetermined operating position of Internal combustion engine is to be supplied, depending on the ambient air pressure is adjustable.
- a fuel metering device has a fuel chamber, an openable and closable fuel inlet to the fuel chamber and at least one fuel outlet of the fuel chamber to an intake passage of an internal combustion engine wherein a part of a wall of the fuel chamber of a first, in dependence from a pressure difference between a pressure in the fuel chamber and an ambient air pressure movable element. that with a closing element for opening and closing the fuel inlet is coupled.
- the fuel metering device also has a Outlet regulating device for adjusting the fuel supply in the Intake passage, an adjusting device with the flow regulator can be coupled, a pressure detection device for detecting a Change the ambient air pressure, and a control device, by the actuating device in dependence on the pressure detection device is operable to actuate the pressure flow regulating device. on.
- the flow regulating device has a nozzle needle in one Passage between the fuel chamber and the intake port on. in which a position of the nozzle needle in the passage by means of the control device operable actuator is changeable. so one Amount of fuel that the intake duct for a predetermined operating position the internal combustion engine is to be supplied, depending on the ambient air pressure is adjustable.
- Both embodiments of the fuel metering device according to the invention out. that an amount of fuel that the intake passage for a predetermined operating position of the internal combustion engine is to be supplied. in Depending on the ambient air pressure is adjustable.
- a significant advantage of the fuel metering device is that the variability of the composition of air respectively depending on a corresponding amount automatically by a corresponding amount supplied amount of fuel is compensated, so that the internal combustion engine always only as much fuel is supplied as for one stoichiometrically correct combustion is required.
- the fuel metering device is equipped with a flow regulating device for adjusting the fuel supply in the intake duct, an adjusting device which can be coupled to the flow control device is. and with a pressure detecting device for detecting a Change in the ambient air pressure is provided. Furthermore, the fuel metering device a control device, by the function of operated by the pressure detection device, the adjusting device can be. to operate the flow regulator.
- the pressure detecting device has a nozzle needle in one Passage between the fuel chamber and the intake passage as the Flow control device, wherein a position of the nozzle needle can be adjusted in the passage by means of the adjusting device. by the control device can be operated.
- the Nozzle needle z. B. by a digital signal of the control device such be adjusted so that the mixture composition in the metering device assumes a stoichiometrically correct ratio.
- the flow-regulating device has the closing element
- the Setting device has the first movable element.
- the first moving one Element becomes with an ambient pressure dependent biasing force acted upon, wherein the first movable element by a change the biasing force is set in motion and thereby the Closing element actuated.
- the biasing force is based on a magnetic interaction
- a second element arranged in response to a change of Ambient air pressure and in the direction of the first movable element movable is.
- a first and second magnetic Part attached, wherein the second movable member of the first movable Part is so approximated that there is a magnetic interaction between the first magnetic part and the second magnetic part as a result, the first movable part for actuating the closing element can be set in motion.
- the main advantage of the aforementioned embodiment is in that with a decrease in the ambient air pressure only by the mobility the second movable member attached thereto second magnetic part in the direction of the first movable element or the thereto attached first magnetic part is moved and thereby the distance between the two magnetic parts is reduced.
- the result intensifies an interaction between the magnets, what to do that leads the first magnetic part through the second magnetic part is attracted more.
- the pressure detection device having the chamber, and further, the control device having the second movable element.
- This can be the second movable element hermetically seal a chamber, being between the first movable element and the second movable element a gap is provided. which is open to the environment. at a decrease in the ambient air pressure occurs accordingly to a Movement of the second movable element in the direction of the first movable Elements, whereby the magnetic interaction described above between the two magnetic parts and thereby achieved Correction of the inflowing amount of fuel is achieved.
- a fuel metering device is characterized characterized in that the adjusting device comprises an active actuator. by which the biasing force can be generated. This can be done on the first movable member to be attached a first magnetic part. while the actuator may be formed of an electromagnet, the the first magnetic part is opposite, and wherein one the Elekromagneten flowing current is proportional to the ambient air pressure. Further, the actuator may be electrically connected to a map controller be, depending on the current flowing through the electromagnet from the ambient air pressure.
- the map control z. B an analog or output digital electromagnetic signal, based on the measured ambient air pressure suitable flooding of the electromagnet and thus the air pressure and the load case appropriate Stoichiometric composition of the fuel-air mixture set can be.
- Fuel metering device have the advantage that the Amount of fuel, the intake passage for operating the internal combustion engine is to be supplied, when the ambient air pressure decreases automatically to a smaller value can be set to for the fuel-air mixture taking into account a stoichiometrically correct composition to ensure the prevailing oxygen concentration.
- FIGS. 1 to 2 are each a schematic structure of a first to Second embodiment of a fuel metering device according to the invention shown. The following are the features that are explained first are common to the embodiments shown.
- the fuel metering device comprises a housing 1 and an upper one Lid 2 and a lower lid 3.
- the fuel is from a tank, not shown, via an inlet channel 4 is guided to a fuel chamber 5.
- a fuel inlet 6 is provided to the fuel chamber 5 through a serving as a closing element inlet needle 7 is opened and closed can be.
- the inlet needle 7 is a lever 8, which together form a closing element form for opening and closing the fuel inlet 6, wherein the Lever 8 is pivotable about an axis 9 and by a spring 10 such is acted upon, that the inlet needle 7 closes the fuel inlet 6.
- a pin 11 is a first movable Element serving upper diaphragm 12 coupled to the fuel chamber 5 against a communicating with the environment back pressure chamber 13 separates.
- the membrane 12 thus forms part of Wall of the fuel chamber 5.
- the fuel via a main fuel outlet 14 for the working operation of the internal combustion engine or via idling fuel outlets 15 get into an intake 16, where the Mixed fuel with inflowing in the direction of arrow air and finally as a fuel-air mixture of a combustion chamber, not shown Internal combustion engine is supplied.
- This feed is made by the pumping motion a piston in the combustion chamber causes during a Ansaugakts sucks the mixture.
- a choke flap 16a and a throttle valve 16b arranged, whose operation are generally known.
- the diaphragm 12 moves due to the support by the spring 10 back to its original position, whereby the fuel inlet 6 is closed again.
- the first embodiment of the fuel metering device can be a nozzle needle 17, which in a passage 18 of the Housing 1 between the fuel chamber 5 and the intake manifold 16 is arranged is set by means of a control device (not shown) such that varied with a thereby supplied to the intake manifold 16 Fuel quantity, the fuel mixture to a stoichiometrically correct Set composition. that of a prevailing oxygen concentration corresponds in the respective operating height of the internal combustion engine.
- a control device such as detecting a change the ambient air pressure, such. B. pressure sensors, measured values of Received ambient air pressure and to the control device for further processing. After appropriate processing the control device z. B. generate digital control signals and these output to actuators (not shown) for adjusting the nozzle needle 17.
- the second embodiment shown in FIG. 2 is opposite to the first Embodiment modified in that the nozzle needle 17th not connected to a controller and thus only manually is adjustable. Furthermore, on a lower side of the upper membrane 12, which bottom is outside the fuel chamber 5, a first Magnet 19 attached. In the area of the lower lid 3 is a second movable element serving lower membrane 20 is provided, the one Chamber 21 hermetically seals and parallel to the upper membrane 12 extends. In opposition to the first magnet 19 is on a Top of the lower membrane, a second magnet 22 attached.
- FIG. 2 The partial sectional view of Fig. 2 makes it clear that in this embodiment the back pressure chamber 13 of the upper membrane 12 and the lower membrane 20 is limited, the back pressure chamber 13 via a compensation opening 23 is open to the environment. Accordingly, it comes when using the internal combustion engine at higher altitudes, d. H. at a Decrease in ambient air pressure and thus a decreasing Pressure in the back pressure chamber 13, due to the closed volume in the hermetically sealed chamber 21 to a movement of the lower Membrane 20 with the attached second magnet 22 in the direction of the attached to the upper diaphragm 12, the first magnet 19, whereby There is a magnetic interaction between the two magnets 19, 22 reinforced.
- the embodiment shown in FIG. 3 is opposite to the second embodiment Embodiment modified in that instead of the lower membrane 20 with the hermetically sealed chamber 21 in the region of the lower Cover 3 an active actuator 24 is provided.
- the active actuator 24 is introduced in such a way in the lower cover 3, that it in juxtaposition to the first magnet attached to the upper diaphragm 12 19 is.
- the active actuator 24 is preferably an electromagnet.
- the operating principle of the third embodiment is based on that means of the electromagnet 24, analogous to the second embodiment, one on the upper membrane 12 acting biasing force can be generated.
- the electromagnet 24 is traversed by a current, so that it causes a magnetic interaction between the electromagnet 24 and the first magnet 19 comes.
- the electromagnet 24 is with a map controller (not shown) electrically connected to the stream. which flows through the electromagnet 24, depending on the respective Ambient air pressure adjusted so that thereby the fuel-air mixture adapted to the appropriate operating height of the internal combustion engine can be.
- the ambient air pressure can be suitable for.
- first magnet 19 instead of the first magnet 19 also be provided an element of metal that in the same way how the first magnet 19 is attached to the upper membrane 12. This Element made of metal performs the same function as the first Magnet 19 and ensures the above-described magnetic interaction.
- Fig. 3 may be modified to that effect. that the electromagnet 24 is arranged within the fuel chamber 5.
- the solenoid 24 would be so through the map control to control that with regard to the desired correction of the Intake tract supplied amount of fuel generates a biasing force which counteracts the curvature of the membrane 12 accordingly.
- electromagnet 24 can also other actuators be used, which - depending on the embodiment - also directly with the Membrane 12 can be connected.
- piezoelectric are suitable Actuators.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- Control Of The Air-Fuel Ratio Of Carburetors (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Description
- Fig. 1
- eine erste Ausführungsform einer erfindungsgemäßen Kraftstoff-Dosiervorrichtung in einem Teilschnitt, wobei zur Erläuterung des Funktionsprinzips teilweise Gestaltungszonen in die Schnittebene hereingeklappt sind:
- Fig. 2
- eine zweite Ausführungsform der erfindungsgemäßen Kraftstoff-Dosiervorrichtung im Teilschnitt; und
- Fig. 3
- eine Ausführungsform einer Kraftstoff-Dosiervorrichtung im Teilschnitt.
Claims (4)
- Kraftstoff-Dosiervorrichtung. miteiner Kraftstoffkammer (5);einem offen- und schließbaren Kraftstoffeinlass (6) zu der Kraftstoffkammer (5); und mitwenigstens einem Kraftstoffauslass (14) von der Kraftstoffkammer zu einem Ansaugkanal (16) einer Brennkraftmaschine:wobei ein Teil einer Wandung der Kraftstoffkammer (5) aus einem ersten, in Abhängigkeit von einem Druckunterschied zwischen einem Druck in der Kraftstoffkammer (5) und einem Umgebungsluftdruck beweglichen Element (12) besteht, das mit einem Schließelement (7, 8) zum Öffnen und Schließen des Kraftstoffeinlasses (6) gekoppelt ist:dass in Gegenüberstellung zum ersten beweglichen Element (12) ein zweites, in Abhängigkeit von einer Änderung des Ungebungsluftdrucks und in Richtung des ersten beweglichen Elements bewegliches Element (20) angeordnet ist, wobeian dem ersten beweglichen Element (12) ein erstes magnetisches Teil (19) und an dem zweiten beweglichen Element (20) ein zweites magnetisches Teil (22) angebracht sind, und wobeidas zweite bewegliche Element (20) bei Abnahme des Umgebungsluftdrucks dem ersten beweglichen Element (12) derart angenähert ist, dass sich zwischen dem ersten magnetischen Teil (19) und dem zweiten magnetischen Teil (22) eine magnetische Wechselwirkung verstärkt, infolgedessen das erste bewegliche Element (12) in Abhängigkeit vom Umgebungsluftdruck zum Betätigen des Schließelements (7, 8) in Bewegung versetzbar ist. so dass eine Kraftstoffmenge, die dem Ansaugkanal (16) für eine vorbestimmte Betriebsstellung der Brennkraftmaschine zuzuführen ist. in Abhängigkeit vom Umgebungsluftdruck regulierbar ist.
- Kraftstoff-Dosiervorrichtung nach Anspruch 1, gekennzeichnet durch eine als Druckerfassungseinrichtung dienende Kammer (21), die durch das zweite bewegliche Element (20) hermetisch verschlossen wird, wobei zwischen dem ersten beweglichen Element (12) und dem zweiten beweglichen Element (20) ein Zwischenraum (13) vorgesehen ist, der zur Umgebung hin offen ist.
- Kraftstoff-Dosiervorrichtung, miteiner Kraftstoffkammer (5);einem öffen- und schließbaren Kraftstoffeinlass (6) zu der Kraftstoffkammer (5); und mitwenigstens einem Kraftstoffauslass (14) von der Kraftstoffkammer zu einem Ansaugkanal (16) einer Brennkraftmaschine;wobei ein Teil einer Wandung der Kraftstoffkammer (5) aus einem ersten, in Abhängigkeit von einem Druckunterschied zwischen einem Druck in der Kraftstoffkammer (5) und einem Umgebungsluftdruck beweglichen Element (12) besteht, das mit einem Schließelement (7, 8) zum Öffnen und Schließen des Kraftstoffeinlasses (6) gekoppelt ist;eine Durchfluss-Reguliereinrichtung zur Einstellung der Kraftstoffzufuhr in den Ansaugkanal;eine Stelleinrichtung, die mit der Durchfluss-Reguliereinrichtung koppelbar ist;eine Druckerfassungseinrichtung zur Erfassung einer Änderung des Umgebungsluftdrucks: undeine Steuerungseinrichtung, durch die in Abhängigkeit von der Druckerfassungseinrichtung die Stelleinrichtung zur Betätigung der Durchfluss-Reguliereinrichtung betreibbar ist, wobei
- Kraftstoff-Dosiervorrichtung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die zuzuführende Kraftstoffmenge bei Abnahme des Umgebungsluftdrucks auf einen kleineren Wert einstellbar ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10161586A DE10161586B4 (de) | 2001-12-14 | 2001-12-14 | Kraftstoff-Dosiervorrichtung |
DE10161586 | 2001-12-14 | ||
PCT/EP2002/013747 WO2003052257A1 (de) | 2001-12-14 | 2002-12-04 | Kraftstoff-dosiervorrichtung |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1454052A1 EP1454052A1 (de) | 2004-09-08 |
EP1454052B1 true EP1454052B1 (de) | 2005-04-13 |
EP1454052B9 EP1454052B9 (de) | 2005-07-20 |
Family
ID=7709274
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02790469A Expired - Lifetime EP1454052B9 (de) | 2001-12-14 | 2002-12-04 | Kraftstoff-dosiervorrichtung |
Country Status (5)
Country | Link |
---|---|
US (1) | US7040287B2 (de) |
EP (1) | EP1454052B9 (de) |
JP (2) | JP4204474B2 (de) |
DE (2) | DE10161586B4 (de) |
WO (1) | WO2003052257A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE60331978D1 (de) * | 2002-07-09 | 2010-05-12 | Coca Cola Co | System und Verfahren zur Herstellung von Milchschaum für Heißgetränke |
US10859027B2 (en) * | 2017-10-03 | 2020-12-08 | Polaris Industries Inc. | Method and system for controlling an engine |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51129920U (de) * | 1975-04-10 | 1976-10-20 | ||
US4212065A (en) * | 1978-06-22 | 1980-07-08 | The Bendix Corporation | Altitude compensation feature for electronic fuel management systems |
JPS55134739A (en) * | 1979-04-05 | 1980-10-20 | Hitachi Ltd | Electronically controlled carburetor |
JPS56156431A (en) * | 1980-05-06 | 1981-12-03 | Hitachi Ltd | Air/fuel ratio control device |
JPS5746046A (en) * | 1980-09-04 | 1982-03-16 | Nissan Motor Co Ltd | Internal combustion engine-controller |
JPS5759047A (en) * | 1980-09-24 | 1982-04-09 | Mikuni Kogyo Co Ltd | Diaphragm type carburetor |
JPS58170843A (ja) * | 1982-03-31 | 1983-10-07 | Aisan Ind Co Ltd | 気化器の空燃比制御装置 |
DE3621497A1 (de) * | 1986-06-27 | 1988-01-07 | Stihl Maschf Andreas | Einrichtung zur veraenderung des luft/kraftstoff-verhaeltnisses |
DE3823525A1 (de) * | 1987-11-06 | 1990-01-18 | Stihl Maschf Andreas | Vergaser fuer verbrennungsmotoren |
SE9200523L (sv) * | 1992-02-20 | 1993-04-26 | Electrolux Ab | Foergasarstyrning |
DE4328989B4 (de) * | 1993-08-28 | 2007-05-16 | Stihl Maschf Andreas | Membranvergaser mit einem Hubmagneten zur Öffnung des Einlaßventils |
DE4411634A1 (de) * | 1994-04-02 | 1995-10-05 | Stihl Maschf Andreas | Membranvergaser |
US5611312A (en) * | 1995-02-07 | 1997-03-18 | Walbro Corporation | Carburetor and method and apparatus for controlling air/fuel ratio of same |
US5632248A (en) * | 1995-06-06 | 1997-05-27 | Mikuni Corporation | Electronically controlled type floatless carburetor |
DE19913073C2 (de) * | 1999-03-23 | 2001-04-05 | Wacker Werke Kg | Kraftstoff-Dosiervorrichtung |
US6581916B1 (en) * | 2001-07-27 | 2003-06-24 | Zama Japan | Electronic control diaphragm carburetor |
-
2001
- 2001-12-14 DE DE10161586A patent/DE10161586B4/de not_active Expired - Fee Related
-
2002
- 2002-12-04 DE DE50202813T patent/DE50202813D1/de not_active Expired - Lifetime
- 2002-12-04 EP EP02790469A patent/EP1454052B9/de not_active Expired - Lifetime
- 2002-12-04 US US10/489,267 patent/US7040287B2/en not_active Expired - Fee Related
- 2002-12-04 WO PCT/EP2002/013747 patent/WO2003052257A1/de active IP Right Grant
- 2002-12-04 JP JP2003553116A patent/JP4204474B2/ja not_active Expired - Fee Related
-
2008
- 2008-07-22 JP JP2008188166A patent/JP2008248896A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
US7040287B2 (en) | 2006-05-09 |
DE50202813D1 (de) | 2005-05-19 |
DE10161586B4 (de) | 2004-07-29 |
WO2003052257A1 (de) | 2003-06-26 |
EP1454052A1 (de) | 2004-09-08 |
EP1454052B9 (de) | 2005-07-20 |
JP2008248896A (ja) | 2008-10-16 |
US20040244775A1 (en) | 2004-12-09 |
JP4204474B2 (ja) | 2009-01-07 |
JP2005513323A (ja) | 2005-05-12 |
DE10161586A1 (de) | 2003-07-03 |
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Legal Events
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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 |
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