EP1925797B1 - Actuating drive for an actuator - Google Patents
Actuating drive for an actuator Download PDFInfo
- Publication number
- EP1925797B1 EP1925797B1 EP20070117122 EP07117122A EP1925797B1 EP 1925797 B1 EP1925797 B1 EP 1925797B1 EP 20070117122 EP20070117122 EP 20070117122 EP 07117122 A EP07117122 A EP 07117122A EP 1925797 B1 EP1925797 B1 EP 1925797B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- receiving chamber
- actuating drive
- chamber
- drive according
- electric motor
- 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
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
- F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
- F02D9/107—Manufacturing or mounting details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
- F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
- F02D9/1035—Details of the valve housing
- F02D9/105—Details of the valve housing having a throttle position sensor
Definitions
- the invention relates to an actuator for an actuator, in particular for a throttle valve in the intake system of an internal combustion engine, according to the preamble of claim 1.
- a known throttle actuator unit for an internal combustion engine DE 195 25 510 A1
- the actuator housing on a first receiving chamber for the electric motor and a second receiving chamber for a transmission and a hollow cylindrical throttle body, in which a throttle valve is pivotally mounted.
- the throttle valve Depending on the swivel position, the throttle valve completely releases the passage cross-section of the throttle body or blocks it to a large extent.
- the electric motor is firmly anchored in the first receiving chamber and protrudes into the second receiving chamber with the free end of the motor shaft.
- a driven pinion On the free end of the motor shaft is rotatably mounted a driven pinion, which meshes with an intermediate gear of the transmission.
- the intermediate wheel is rotatably mounted on a transmission axis and is connected via a second sprocket into engagement with a gear wheel which is mounted on a control shaft carrying the throttle valve.
- the second receiving chamber is covered by a housing cover.
- the gear axis is accommodated at the end in the actuator housing and in the housing cover.
- the actuator according to the invention with the features of claim 1 has the advantage that on the one hand a very simple, cost-saving and suitable for an automation assembly process is applied by the drawing of the bearing plate for axially backlash determination of the electric motor in the receiving chamber and the flanging that the thin-walled and less stable motor housing of a used, preferably lightweight electric motor not deformed and thus the electric motor, eg is not damaged in the region of the magnetic poles arranged on the motor housing.
- a used, preferably lightweight electric motor not deformed and thus the electric motor eg is not damaged in the region of the magnetic poles arranged on the motor housing.
- the required for a smooth running of the transmission gear to the actuator distances of engine and transmission shafts during axial clamping of the electric motor are maintained in the receiving chamber.
- an exact positioning of the motor shaft can be made, since the seat of the motor shaft bearing in the bearing plate and the outer diameter of the shield segments can be made coordinated with a single punching tool.
- flare elements are provided for the flanging of the shield segments, which are integrally formed along the opening edge of the chamber opening on the actuator housing.
- the crimping elements are formed by elevations projecting axially beyond the chamber opening at the opening edge of the chamber opening, which elevations are designed to be axially flattenable for flaring onto the shield segments.
- the height of the elevations, viewed in the axial direction of the receiving chamber, is adjusted to a predetermined extent, preferably by means of machining.
- Fig. 1 shown in longitudinal section schematically actuator serves for the pivotal adjustment of an actuator, which is designed as a throttle valve 11 in the intake of an internal combustion engine.
- the actuator may also be an air damper in an air conditioner or other pivotal element for controlling a channel cross-section.
- the throttle valve 11 is pivotally mounted in a throttle body 12 and by means of the actuator from a basic position, the so-called emergency or Notluftposition in which only a minimal air passage cross-section in the throttle body 12 is released, in a Schwenkend ein transferred, in which the in the throttle body 12 available flow cross-section is maximally released.
- the actuator has an integral with the throttle body 12 actuator housing 13 which is covered with a housing cover 14.
- the throttle valve 11 is attached to a control shaft 15 which is pivotally mounted in the throttle body 12 and the actuator housing 13 and carries a gear 16 on its free end.
- a transmission gear 20 is arranged, which comprises an intermediate 19 and a drive pinion 21 in addition to the gear 16.
- the intermediate gear 19 is rotatably mounted on a transmission axis 22, which is accommodated on the one hand in the actuator housing 13 and on the other hand in the housing cover 14.
- the idler 19 has two sprockets 191, 192 with different tooth circle diameter and different numbers of teeth.
- the ring gear 191 with the larger tooth circle diameter meshes with the drive pinion 21, and the ring gear 192 with the smaller ring gear diameter meshes with the gear 16.
- an electric motor 23 is positively inserted, which carries on its projecting into the first receiving chamber 17 motor shaft 24, the drive pinion 21.
- protruding plug contacts of which a plug contact 25 in FIG. can be seen, corresponds with fixed to the housing cover 14 mating contacts, of which a mating contact 26 in Fig. 1 you can see.
- the contact connections are used for power supply and electrical control of the electric motor 23.
- a slider 27 is mounted on the gear 16, which cooperates with arranged on the housing cover 14 sliding paths of a potentiometer 28.
- the electric motor 23 has a hollow-cylindrical motor housing 30 with a cylinder wall 31.
- the motor housing 30 is part of the stator, not shown, of the electric motor 23 and carries as pole tube, the magnetic poles of the electric motor 23.
- the lying at the chamber opening 181 of the second receiving chamber 18 front end of the tubular or hollow cylindrical motor housing 30 is covered by a bearing plate 32, as a stamped part is made.
- a front bearing 33 is held for the motor shaft 24.
- a second bearing 34 for the motor shaft 24 is located on the side facing away from the front bearing 33 rear end of the motor housing 30.
- This second bearing 34 is either attached to a further bearing flange or held in cup-shaped design of the motor housing 23 in a central opening in the pot bottom. On the mounted in the bearings 33, 34 motor shaft 24 of the stator enclosed rotor of the electric motor 23 is fixed in a known manner.
- the bearing plate 32 distributed over the circumference arranged shield segments 321, of which in Fig. 2 a shield segment and in Fig. 3 two shield segments can be seen.
- the shield segments 321 extend radially beyond the inner wall surface 311 of the cylinder wall 31 and terminate flush with the outer wall surface 312 of the cylinder wall 31.
- the remaining region of the end shield 32 has an outer diameter corresponding to the clear diameter of the motor housing 30.
- At least one shield segment 321 lies in the circumferential direction with minimal play, which is required for insertion, so quasi play, in the associated recess 35 a.
- the molded in the actuator housing 13 second receiving chamber 18 is by means of a chip tool, for. As a drill, brought to an exact diameter, so that the electric motor 23 is radially play with little effort in the second receiving chamber 18 can be inserted.
- a radially projecting from the cylinder wall 31 annular web 37 is formed.
- the annular web 37 has a central passage opening 38 through which the rear bearing 34 passes when the electric motor 23 is inserted.
- the annular web surface facing the chamber opening 181 forms a contact shoulder 371, on which the motor housing 30 is axially supported with its rear end face.
- a flanging of the shield segments 321 of the bearing plate 32 is made.
- flanging elements 39 arranged along the opening edge of the chamber opening 181 are provided, which are integrally formed on the actuator housing 13. These flaring elements 39 are axially above the chamber opening 181 protruding elevations, which are flattened axially flattening for flaring on the shield segments 321.
- the crimping elements 39 are shown after flaring on the shield segments 321.
- Fig. 4 shows a crimping element 39, which is not yet deformed for fixing the electric motor 23. The flattening of the elevations by means of a flat tool.
- the material deviates in the direction of the chamber opening 181 and presses against the shield segments 321. Unlike a beading brought about with a caulking tool, this ensures that no chips are blown off which could cause damage to the transmission gear 20.
- the pressing force for deformation of the elevations can be set very accurately, thus the motor housing 30 during the axial setting of the electric motor 23 load very accurately and thus reliably prevent the occurrence of deformations of the motor housing 30.
- the elevations to be deformed are finished with a cutting tool, so that their axial height is set very accurately. This machining of the elevations can be effected simultaneously with the machining of the inner wall of the receiving chamber 18 with a corresponding design of the chip tool in a single operation.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Description
Die Erfindung geht aus von einem Stellantrieb für ein Stellorgan, insbesondere für eine Drosselklappe im Ansaugsystem einer Brennkraftmaschine, nach dem Oberbegriff des Anspruchs 1.The invention relates to an actuator for an actuator, in particular for a throttle valve in the intake system of an internal combustion engine, according to the preamble of claim 1.
Bei einer bekannten Drosselklappenstelleinheit für eine Brennkraftmaschine (
Ein weiteres Beispiel eines Stellantriebes wird in Dokument
In Fahrzeugen sind solche Drosselklappenstelleinheiten für Brennkraftmaschinen hohen Schüttelbelastungen ausgesetzt, die den Elektromotor stark beanspruchen. Daher ist es erforderlich, den Elektromotor sehr steif und spielfrei im Stellergehäuse zu verankern, damit sich die Schüttelbelastung am Elektromotor nicht durch Relativbewegung zwischen Motorgehäuse und Stellergehäuse weiter erhöht. Üblich ist eine Herstellung der Spielfreiheit zwischen Stellergehäuse und Motorgehäuse durch Verwendung von Schrauben und federnden Elementen, die ein Einspannen des Elektromotors unter Ausgleich von Teiletoleranzen ermöglichen.In vehicles, such throttle actuator units for internal combustion engines are exposed to high shaking loads, which stress the electric motor. Therefore, it is necessary to anchor the electric motor very stiff and backlash in the actuator housing, so that the shaking load on the electric motor is not further increased by relative movement between the motor housing and actuator housing. It is customary to produce the backlash between actuator housing and motor housing by using screws and resilient elements, which allow a clamping of the electric motor to compensate for part tolerances.
Offenbarung der ErfindungDisclosure of the invention
Der erfindungsgemäße Stellantrieb mit den Merkmalen des Anspruchs 1 hat den Vorteil, dass durch das Heranziehen des Lagerschilds zur axial spielfreien Festlegung des Elektromotors in der Aufnahmekammer und dessen Überbördelung einerseits ein sehr einfaches, kostensparendes und für eine Automation geeignetes Montageverfahren angewendet und dabei andererseits sichergestellt wird, dass das dünnwandige und wenig stabile Motorgehäuse eines verwendeten, vorzugsweise leichtgewichtigen Elektromotors nicht verformt und damit auch der Elektromotor, z.B. im Bereich der am Motorgehäuse angeordneten Magnetpole, nicht beschädigt wird. Gleichzeitig ist sichergestellt, dass die für eine Leichtgängigkeit des Übersetzungsgetriebes zum Stellorgan geforderten Abstände von Motor- und Getriebewellen beim axialen Einspannen des Elektromotors in der Aufnahmekammer eingehalten werden. Darüber hinaus lässt sich eine exakte Positionierung der Motorwelle vornehmen, da der Sitz des Motorwellenlagers im Lagerschild und der Außendurchmesser der Schildsegmente aufeinander abgestimmt mit einem einzigen Stanzwerkzeug hergestellt werden können.The actuator according to the invention with the features of claim 1 has the advantage that on the one hand a very simple, cost-saving and suitable for an automation assembly process is applied by the drawing of the bearing plate for axially backlash determination of the electric motor in the receiving chamber and the flanging that the thin-walled and less stable motor housing of a used, preferably lightweight electric motor not deformed and thus the electric motor, eg is not damaged in the region of the magnetic poles arranged on the motor housing. At the same time it is ensured that the required for a smooth running of the transmission gear to the actuator distances of engine and transmission shafts during axial clamping of the electric motor are maintained in the receiving chamber. In addition, an exact positioning of the motor shaft can be made, since the seat of the motor shaft bearing in the bearing plate and the outer diameter of the shield segments can be made coordinated with a single punching tool.
Durch die in den weiteren Ansprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen und Verbesserungen des im Anspruch 1 angegebenen Stellantriebs möglich.The measures listed in the further claims advantageous refinements and improvements of the claim 1 actuator are possible.
Gemäß einer vorteilhaften Ausführungsform der Erfindung sind für die Überbördelung der Schildsegmente Bördelelemente vorgesehen, die längs des Öffnungsrandes der Kammeröffnung einstückig an dem Stellergehäuse angeformt sind. Vorzugsweise werden die Bördelelemente von am Öffnungsrand der Kammeröffnung axial über die Kammeröffnung vorstehenden Erhebungen gebildet, die zum Aufbördeln auf die Schildsegmente axial flachdrückbar ausgebildet sind. Dabei ist die in Achsrichtung der Aufnahmekammer gesehene Höhe der Erhebungen, vorzugsweise mittels spanender Bearbeitung, auf ein vorbestimmtes Maß toleranzeng eingestellt. Dies hat den Vorteil, dass bei der Montage eine korrekte Verstemmung des Lagerschilds sichergestellt ist, da die zum Verformen der Erhebungen erforderliche Presskraft zunächst langsam und später sehr steil ansteigt und durch Begrenzung der Presskraft der Grad der Verformung sehr genau gesteuert werden kann. Damit wird eine spielfreie Verprägung bei geringer Belastung des Motorgehäuses erreicht.According to an advantageous embodiment of the invention flare elements are provided for the flanging of the shield segments, which are integrally formed along the opening edge of the chamber opening on the actuator housing. Preferably, the crimping elements are formed by elevations projecting axially beyond the chamber opening at the opening edge of the chamber opening, which elevations are designed to be axially flattenable for flaring onto the shield segments. The height of the elevations, viewed in the axial direction of the receiving chamber, is adjusted to a predetermined extent, preferably by means of machining. This has the advantage that a correct caulking of the bearing plate is ensured during assembly, since the pressing force required to deform the surveys initially increases slowly and later very steep and can be controlled very precisely by limiting the pressing force the degree of deformation. For a play-free embossment is achieved at low load on the motor housing.
Die Erfindung ist anhand eines in den Zeichnungen dargestellten Ausführungsbeispiels in der nachfolgenden Beschreibung näher erläutert. Es zeigen:
- Fig. 1
- einen Längsschnitt eines Stellantriebs für eine Drosselklappe im Ansaugsystem einer Brennkraftmaschine mit Stellergehäuse und darin angeordnetem Elektromotor,
- Fig. 2
- ausschnittweise eine Draufsicht in Richtung Pfeil II des Ausschnitt II in
Fig. 1 , - Fig. 3
- ausschnittweise einen Längsschnitt von Stellergehäuse und Elektromotor gemäß Schnittführung III - III in
Fig. 2 , - Fig. 4
- eine gleiche Darstellung wie in
Fig. 2 vor einer Verstemmung des Elektromotors im Stellergehäuse.
- Fig. 1
- a longitudinal section of an actuator for a throttle valve in the intake system of an internal combustion engine with actuator housing and arranged therein electric motor,
- Fig. 2
- a detail of a plan view in the direction of arrow II of the neck II in
Fig. 1 . - Fig. 3
- Sectionally a longitudinal section of actuator housing and electric motor according to section III - III in
Fig. 2 . - Fig. 4
- a same representation as in
Fig. 2 against caulking of the electric motor in the actuator housing.
Der in
Wie in
In die zweite Aufnahmekammer 18 ist ein Elektromotor 23 formschlüssig eingesetzt, der auf seiner in die erste Aufnahmekammer 17 hineinragenden Motorwelle 24 das Antriebsritzel 21 trägt. Am Elektromotor 23 vorstehende Steckkontakte, von denen ein Steckkontakt 25 in Fig. zu sehen ist, korrespondiert mit am Gehäusedeckel 14 festgelegten Gegenkontakten, von denen ein Gegenkontakt 26 in
Wie aus
Wie aus der Schnittdarstellung in
Die im Stellergehäuse 13 ausgeformte zweite Aufnahmekammer 18 ist mittels eines Spanwerkzeugs, z. B. eines Bohrers, auf ein genaues Durchmessermaß gebracht, so dass der Elektromotor 23 radial spielarm in die zweite Aufnahmekammer 18 einschiebbar ist. Nahe dem von der Kammeröffnung 181 abgekehrten Kammergrund 182 ist ein radial von der Zylinderwand 31 abstehender Ringsteg 37 ausgebildet. Der Ringsteg 37 weist eine zentrale Durchgangsöffnung 38 auf, durch die beim Einsetzen des Elektromotors 23 das hintere Lager 34 hindurchtritt. Die der Kammeröffnung 181 zugekehrte Ringstegfläche bildet eine Anlageschulter 371, an der sich das Motorgehäuse 30 mit seinem hinteren Stirnende axial abstützt. Zur axialen spiellosen Festlegung des Elektromotors 23 in der zweiten Aufnahmekammer 18 ist eine Überbördelung der Schildsegmente 321 des Lagerschilds 32 vorgenommen. Hierzu sind längs des Öffnungsrands der Kammeröffnung 181 angeordnete Bördelelemente 39 vorgesehen, die einstückig an das Stellergehäuse 13 angeformt sind. Diese Bördelelemente 39 sind axial über die Kammeröffnung 181 vorstehende Erhebungen, die zum Aufbördeln auf die Schildsegmente 321 axial flachdrückbar ausgebildet sind. In
Claims (9)
- Actuating drive for an actuator, in particular for a throttle valve (11) in the intake system of an internal combustion engine, having an actuating-element housing (13), in which at least one receiving chamber (18) with a chamber opening (181) is provided, and having an electric motor (23) which is fixed in the receiving chamber (18) and has a hollow-cylindrical motor housing (30), with a cylindrical wall (31), and at least one bearing plate (32) which is arranged at that front end of the motor housing (30) which lies close to the chamber opening (181), characterized in that the bearing plate (32) has plate segments (321) which are arranged distributed over the circumference and project radially beyond the inner wall surface (311) of the cylindrical wall (31) in the region of cut-outs (35) which are sunk into the cylindrical wall (31) on the front side, and in that the fixing of the electric motor (23) in the receiving chamber (18) is carried out by flaring over the plate segments (321).
- Actuating drive according to Claim 1, characterized in that at least one plate segment (321) lies in the associated cut-out (35) at least with low play, preferably without play, in the circumferential direction.
- Actuating drive according to Claim 1 or 2, characterized in that the radial outer contour of the plate segments (321) is flush with the outer surface (312) of the cylindrical wall (31), and in that an axial contact shoulder (3'/1) is arranged close to that chamber bottom (182) of the receiving chamber (18) which faces away from the chamber opening (181), on which axial contact shoulder (371) the motor housing (30) is supported.
- Actuating drive according to one of Claims 1 to 3, characterized in that the electric motor (23) lies in a radially positively locking manner in the receiving chamber (18).
- Actuating drive according to one of Claims 1 to 4, characterized in that flaring elements (39) which are arranged along the opening edge of the chamber opening (181) of the receiving chamber (18) and are formed integrally onto the actuating-element housing (13) are provided for flaring over the plate segments (321).
- Actuating drive according to Claim 5, characterized in that the flaring elements (39) are formed by elevations which project axially over the chamber opening (181) at the opening edge of the chamber opening (181) of the receiving chamber (18) and are configured such that they can be pressed flat axially for flaring over onto the plate segments (321).
- Actuating drive according to Claim 6, characterized in that the height of the elevations, as viewed in the axial direction of the receiving chamber (18), is set with narrow tolerances to a predefined magnitude, preferably by means of machining with the removal of material.
- Actuating drive according to Claim 7, characterized in that the receiving chamber (18) is given a predefined, inside diameter by machining with the removal of material, and in that the machining of the receiving chamber (18) and the elevations with the removal of material is carried out in the same work operation with a single tool.
- Actuating drive according to one of Claims 1 to 8, characterized in that the bearing plate (32) bears at least in regions against the inner wall surface (311) of the cylindrical wall (31) of the motor housing (30), and in that an edge of the cylindrical wall (31) of the motor housing (30), which edge projects axially over the bearing plate (32), is flared at least in sections onto the bearing plate (32).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200610055257 DE102006055257A1 (en) | 2006-11-23 | 2006-11-23 | Actuator for an actuator |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1925797A1 EP1925797A1 (en) | 2008-05-28 |
EP1925797B1 true EP1925797B1 (en) | 2010-11-24 |
Family
ID=39166332
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20070117122 Not-in-force EP1925797B1 (en) | 2006-11-23 | 2007-09-25 | Actuating drive for an actuator |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1925797B1 (en) |
DE (2) | DE102006055257A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010042079A1 (en) | 2010-10-06 | 2012-04-12 | Robert Bosch Gmbh | Direct current electric machine i.e. direct current electric motor, and switch device system for motor car, has housing or part of housing connected with contact element, so that housing or part of housing forms screening device |
DE102010042072A1 (en) | 2010-10-06 | 2012-04-12 | Robert Bosch Gmbh | DC electric machine |
CN114458778B (en) * | 2022-02-14 | 2023-08-15 | 浙江新华阀门制造有限公司 | Intelligent regulation butterfly valve based on thing networking |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7404546U (en) * | 1974-08-22 | Stahlschmidt R | Housings for electrical machines, in particular electric motors | |
ES397710A1 (en) * | 1970-12-15 | 1975-03-16 | Frigo | Improvements in the construction of electrocompressors rotary to pallets, particularly for acoustic vessels. (Machine-translation by Google Translate, not legally binding) |
DE2164084A1 (en) * | 1971-12-23 | 1973-06-28 | Licentia Gmbh | SMALL ELECTRIC MOTOR |
DE3123579A1 (en) * | 1981-06-13 | 1982-12-30 | Bosch Gmbh Robert | AGGREGATE FOR PROMOTING FUEL FROM A STORAGE TANK TO A COMBUSTION ENGINE |
DE4241020A1 (en) * | 1992-12-05 | 1994-06-09 | Bosch Gmbh Robert | Rotating actuator for throttle flap - has soldering terminals in end shield chamber as electrical contacts for drive motor and position sensor |
DE19525510B4 (en) * | 1995-07-13 | 2008-05-08 | Robert Bosch Gmbh | Throttle actuator |
DE19653209A1 (en) * | 1996-12-19 | 1998-06-25 | Siemens Ag | Commutator actuator with high-resolution rotation detection |
JP2001303983A (en) * | 2000-02-17 | 2001-10-31 | Denso Corp | Throttle device for internal combustion engine |
JP4093173B2 (en) * | 2003-10-31 | 2008-06-04 | 株式会社デンソー | Throttle control device for internal combustion engine |
-
2006
- 2006-11-23 DE DE200610055257 patent/DE102006055257A1/en not_active Withdrawn
-
2007
- 2007-09-25 EP EP20070117122 patent/EP1925797B1/en not_active Not-in-force
- 2007-09-25 DE DE200750005743 patent/DE502007005743D1/en active Active
Also Published As
Publication number | Publication date |
---|---|
DE102006055257A1 (en) | 2008-05-29 |
DE502007005743D1 (en) | 2011-01-05 |
EP1925797A1 (en) | 2008-05-28 |
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