EP1382807A2 - Magnetventil mit Ölfilter für variable Nockenwellensteuerung - Google Patents
Magnetventil mit Ölfilter für variable Nockenwellensteuerung Download PDFInfo
- Publication number
- EP1382807A2 EP1382807A2 EP03013770A EP03013770A EP1382807A2 EP 1382807 A2 EP1382807 A2 EP 1382807A2 EP 03013770 A EP03013770 A EP 03013770A EP 03013770 A EP03013770 A EP 03013770A EP 1382807 A2 EP1382807 A2 EP 1382807A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- oil
- solenoid valve
- engine
- variable camshaft
- oil filter
- 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.)
- Granted
Links
- 239000003921 oil Substances 0.000 claims abstract description 67
- 239000010705 motor oil Substances 0.000 claims abstract description 23
- 238000002485 combustion reaction Methods 0.000 claims 2
- 238000001816 cooling Methods 0.000 abstract 1
- 238000007689 inspection Methods 0.000 description 9
- 238000011161 development Methods 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/022—Chain drive
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
- F01L2001/34423—Details relating to the hydraulic feeding circuit
- F01L2001/34426—Oil control valves
- F01L2001/3443—Solenoid driven oil control valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
- F01L2001/34423—Details relating to the hydraulic feeding circuit
- F01L2001/34426—Oil control valves
- F01L2001/34433—Location oil control valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
- F01L2001/34423—Details relating to the hydraulic feeding circuit
- F01L2001/34436—Features or method for avoiding malfunction due to foreign matters in oil
- F01L2001/3444—Oil filters
Definitions
- the present invention relates to a variable camshaft timing according to the Preamble of claim 1.
- the object of the invention is to provide a camshaft control, in which the Problem of failure of the solenoid valves in the first "life phase" of the engine is avoided by "original dirt".
- the basic principle of the invention is prior to the engine oil inlet of the solenoid valve
- a filter or a sieve after the running-in phase of the engine can be removed during the inspection.
- the sieve is intended during the running-in phase of the engine "the original dirt", d. H. Chips and abrasion catch the engine or cylinder head and an intrusion into the solenoid valve to prevent.
- After the running-in phase of the engine z. B. after 15,000 km Usually the entire "original dirt washed out of the engine.”
- the filter or sieve before the engine oil inlet of the solenoid valve can then in the context of Inspection to be removed. It does not need to be replaced by a new filter or sieve to become.
- the filter or screen prevents penetration of the "original dirt” in the Magnetic valve. A pollution-related failure of the solenoid valve "Urschmutz” is thus prevented.
- At the first inspection only that needs Filter to be removed. An exchange of the solenoid valve is unnecessary.
- the oil filter or oil strainer is directly on Engine oil inlet of the solenoid valve arranged.
- the solenoid valve is in an inspection with a few simple steps from the motor housing, in particular removable from the cylinder head.
- the oil filter or oil strainer attached directly to the solenoid valve and can be used together with the Solenoid valve to be removed. After removing the solenoid valve that needs Oil filter or oil strainer only to be removed from the solenoid valve.
- the solenoid valve has a Shank section on.
- the engine oil input of the solenoid valve is through one or more distributed in the circumferential direction of the shaft portion arranged radial bores educated.
- control outputs can be provided on the shaft section, which may also be formed by radial bores.
- the Shaft portion of the solenoid valve in the engine oil input a circumferential Groove on.
- the oil filter or oil strainer is inserted into this groove.
- the oil filter or sieve may have the shape of a Manschnette, in the Groove of the shaft portion is inserted.
- Fig. 1 shows schematically the end face 1 of an engine block of a V-engine with two Cylinder heads 2, 3.
- two solenoid valves 4, 5 used in a known manner to control an adjustment of the Camshaft control are provided.
- the solenoid valves 4, 5 covered by a cover 6.
- Fig. 2 shows details of the solenoid valve 4.
- the solenoid valve 4 has a rear Section 7, in which the solenoids and the armature are housed, the be powered by a power connector 8 with electricity.
- the solenoid valve 4 has Further, a front, substantially cylindrical portion 9, which by three adjacent circumferential grooves 10 - 12 is formed.
- the shaft section 9 has in the grooves 10 - 12 each arranged a plurality of circumferentially distributed radial bores 15, which with the interior of the shaft portion 9 in conjunction stand.
- Inside the shaft portion 9 is a by electrical actuation arranged the solenoid valve sliding control piston.
- the middle hole 14 forms in the embodiment shown here the engine oil input of Solenoid valve 4.
- the other two holes 13, 15 act as control outputs, via a duct system or line system with the adjustment the camshaft control are in pressure communication. That is, engine oil is flowing via the bore 14 in the solenoid valve and the control bores 13, 15 off out of the solenoid valve.
- FIG. 3 shows a receiving bore 16 provided in the cylinder head 2 (see FIG. in which the solenoid valve 4 or more precisely the shaft 9 of the solenoid valve used becomes.
- transverse channels 17 - 19 are provided, which are the holes 13 - 15 are assigned in the shaft 9 of the solenoid valve 4, as well as a likewise in the receiving bore 16 opening longitudinal bore 20th
- the basic principle of the present invention is now in front of the engine oil inlet the solenoid valve 4, d. H. before the holes 14, an oil filter or an oil screen to arrange.
- the oil filter or oil strainer inserted into the circumferential groove 11 of the shaft 9 of the solenoid valve 4.
- FIGS. 4-7 show a first embodiment of such an oil filter or Oil strainer 21.
- the oil filter or oil strainer 21 has a carrier body 22, which, as on Best seen in FIGS. 5 and 6, from two semi-cylindrical carrier body halves 22a, 22b, which at one end via a pivot joint 23 with each other are connected.
- the pivot joint 23 may for example by a Material necking be formed.
- the other two ends 24, 25 of the semi-cylindrical Carrier body halves 22a, 22b form a clip closure.
- Fig. 5 shows the fauxgeclipsten state
- Fig. 6 shows the opened state.
- the carrier body halves 22a, 22b have a plurality of recesses 26 distributed in the circumferential direction 33, via the engine oil from radially outside to radially inside into the solenoid valve 4 can flow.
- About the recesses 26, d. H. over the entire circumference of the Carrier body 22 is placed a screen plate 34 and fixed to the carrier body 22.
- the Oil filter or oil sieve 21 is in the open state (see Fig .. 6) over the shaft of the solenoid valve 4 and inserted into the groove 11 and then clipped together.
- the solenoid valve 4 is dismantled in a few simple steps and the oil filter or oil strainer 21 is removed from the groove 11. Subsequently, the solenoid valve 4 rebuilt and now without oil filter or oil strainer.
- the oil filter or oil strainer is here by a cuff-like Screen plate 34 is formed, which is inserted into the groove 11 of the shaft 9 of the solenoid valve is.
- the two end sections 35, 36 of the screen plate are here by a laser spot welding 37 interconnected.
- the one end portion 36 has additionally a tab-like extension 38 which extends in the circumferential direction from the end portion 36 protrudes.
- the solenoid valve 9 is together with removed the screen plate 34. With a pair of needle nose pliers can the tab-like extension 38 are taken. Subsequently, the seam 37 is torn open with the needle-nose pliers and the oil strainer 21 is removed from the shaft 9 of the solenoid valve 4.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
Description
- Fig. 1
- die prinzipielle Anordnung von Magnetventilen einer Nockenwellensteuerung am Zylinderkopf;
- Fig. 2
- ein Magnetventil einer Nockenwellensteuerung;
- Fig. 3
- eine zylindrische Ausnehmung im Zylinderkopf, in die das Magnetventil der Fig. 2 eingesetzt wird;
- Fig. 4 - 7
- verschiedene Ansichten eines durch einen Trägerkörper gebildeten Ölfilters bzw. Ölsiebs;
- Fig. 8, 9
- ein Ausführungsbeispiel, bei dem das Ölfilter bzw. Ölsieb als einfaches Siebblech ausgebildet ist.
Claims (12)
- Variable Nockenwellensteuerung für Verbrennungsmotoren, mit
einer Verstelleinrichtung zum Verstellen einer Nockenwelle, wobei durch das Verstellen der Nockenwelle Öffnungs- und Schließzeiten von Ventilen des Verbrennungsmotors verstellbar sind, und die Verdrehstellung der Nockenwelle durch ein Magnetventil (4) steuerbar ist, das einen Motoröleingang (14) aufweist, der an den Motorölkreislauf angeschlossen ist, dadurch gekennzeichnet, dass vor dem Motoröleingang (14) ein dem Magnetventil (4) zugeordnetes Ölfilter bzw. Ölsieb (21) angeordnet ist. - Variable Nockenwellensteuerung nach Anspruch 1, wobei das Ölfilter bzw. Ölsieb (21) unmittelbar am Motoröleingang (14) des Magnetventils (4) angeordnet ist.
- Variable Nockenwellensteuerung nach Anspruch 1 oder 2, wobei das Magnetventil (4) ein vom Verbrennungsmotor demontierbares Bauteil ist und das Ölfilter bzw. Ölsieb (21) lösbar am Magnetventil (4) befestigt und zusammen mit dem Magnetventil (4) demontierbar ist.
- Variable Nockenwellensteuerung nach einem der Ansprüche 1 bis 3, wobei das Magnetventil (4) mindestens einen Steuerölausgang (13, 15) zum Ansteuern der Verstelleinrichtung aufweist.
- Variable Nockenwellensteuerung nach Anspruch 4, wobei das Magnetventil (4) einen zylindrischen Schaftabschnitt (9) aufweist, wobei der Motoröleingang (14) und der mindestens einen Steuerausgang (13) durch eine oder mehrere über den Umfang des Schaftabschnitts (9) verteilt angeordnete radiale Bohrungen (13, 15) gebildet sind, die in das Innere des Schaftabschnitts (9) münden und wobei sich das Ölfilter bzw. Ölsieb (21) im Bereich des Öleingangs (14) manschettenartig um den Schaftabschnitt (9) herum erstreckt.
- Variable Nockenwellensteuerung nach Anspruch 5, wobei der Schaftabschnitt (9) im Bereich des Öleingangs (14) eine umlaufende Nut (11) aufweist, in die das Ölfilter bzw. Ölsieb (21) von außen her eingesetzt ist.
- Variable Nockenwellensteuerung nach einem der Ansprüche 1 bis 6, wobei das Ölfilter bzw. Ölsieb (21) ein Filter- bzw. Siebelement (34) aufweist, das durch einen Trägerkörper (22) gehalten ist.
- Variable Nockenwellensteuerung nach Anspruch 7, wobei der Trägerkörper (22) öffenbar ist und durch zwei halbzylindrische Hälften (22a, 22b) gebildet ist, die an ihren ersten Enden über ein Schwenkgelenk (23) miteinander verbunden sind und die an ihren zweiten Enden (24, 25) öffenbar miteinander verbunden sind.
- Variable Nockenwellensteuerung nach Anspruch 8, wobei die zweiten Enden (24, 25) der halbzylindrischen Hälften (22a, 22b) als Clipverschluss ausgebildet sind.
- Variable Nockenwellensteuerung nach einem der Ansprüche 1 bis 6, wobei das Ölfilter bzw. Ölsieb (21) durch ein Siebblech (34) gebildet ist, das sich im Bereich des Öleingangs (14) um den Schaftabschnitt (9) herum erstreckt und dessen Endabschnitte (35, 36) miteinander verbunden sind.
- Variable Nockenwellensteuerung nach Anspruch 11, wobei die Endabschnitte (35, 36) miteinander verschweißt sind.
- Variable Nockenwellensteuerung nach einem der Ansprüche 10 oder 11, wobei der eine Endabschnitt (36) einen laschenartigen Fortsatz (38) aufweist, der zum Aufreißen der Verbindung (37) der Endabschnitte (35, 36) und zum Entfernen des Ölfilters bzw. Ölsiebs (21) vom Magnetventil (4) vorgesehen ist.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2002132528 DE10232528B4 (de) | 2002-07-18 | 2002-07-18 | Magnetventil mit Ölfilter für variable Nockenwellensteuerung |
| DE10232528 | 2002-07-18 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1382807A2 true EP1382807A2 (de) | 2004-01-21 |
| EP1382807A3 EP1382807A3 (de) | 2007-12-26 |
| EP1382807B1 EP1382807B1 (de) | 2011-03-16 |
Family
ID=29762026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20030013770 Expired - Lifetime EP1382807B1 (de) | 2002-07-18 | 2003-06-18 | Magnetventil mit Ölfilter für variable Nockenwellensteuerung |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1382807B1 (de) |
| DE (2) | DE10232528B4 (de) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2857720A1 (fr) * | 2003-07-16 | 2005-01-21 | Denso Corp | Valve de permutation de passages d'huile contenant un filtre a huile |
| WO2008040741A1 (en) * | 2006-10-05 | 2008-04-10 | Delphi Technologies, Inc. | Fluid control valve |
| EP1635044A3 (de) * | 2004-09-14 | 2010-08-04 | Yamaha Hatsudoki Kabushiki Kaisha | Motor |
| LU92162B1 (de) * | 2012-03-05 | 2014-09-29 | Schaeffler Technologies Ag | Filteranordnung eindes Steuerventils für einen Nockenwellenversteller |
| WO2016122829A1 (en) * | 2015-01-30 | 2016-08-04 | Caterpillar Inc. | Injector inlet fuel screen |
| EP3306055A1 (de) * | 2016-10-04 | 2018-04-11 | ECO Holding 1 GmbH | Umschaltventil und pleuel für eine brennkraftmaschine mit variabler verdichtung |
| US10302059B2 (en) | 2017-01-24 | 2019-05-28 | Caterpillar Inc. | Filter for a fuel injector |
| US10352202B2 (en) | 2016-10-04 | 2019-07-16 | ECO Holding 1 GmbH | Switch valve and connecting rod for variable compression internal combustion engine |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004036096B4 (de) | 2004-07-24 | 2017-09-14 | Schaeffler Technologies AG & Co. KG | Steuerventil für eine Vorrichtung zur Veränderung der Steuerzeiten einer Brennkraftmaschine |
| DE102007050447B4 (de) | 2007-10-19 | 2017-01-12 | Hilite Germany Gmbh | Hydraulisches Cartridgeventil mit Sieb |
| DE102020113906A1 (de) | 2020-05-25 | 2021-11-25 | Schaeffler Technologies AG & Co. KG | Magnetaktor für einen Nockenwellenversteller und Verfahren zur Betätigung eines Aktors eines Nockenwellenverstellers |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19831515A1 (de) | 1998-07-14 | 2000-01-20 | Bayerische Motoren Werke Ag | Betriebsverfahren für eine Fahrzeugkraftmaschine |
| DE10027080A1 (de) | 1999-06-10 | 2001-03-22 | Unisia Jecs Corp | Öldrucksteuervorichtung für einen Verbrennungsmotor |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3143848A1 (de) * | 1981-11-05 | 1983-05-11 | Robert Bosch Gmbh, 7000 Stuttgart | Elektromagnetisch betaetigbares ventil, insbesondere kraftstoffeinspritzventil |
| DE4015776C2 (de) * | 1989-05-24 | 1997-09-18 | Diesel Kiki Co | Steuerschieberventil |
| JPH07243548A (ja) * | 1994-03-08 | 1995-09-19 | Toyota Motor Corp | 流体制御弁 |
| JP3912474B2 (ja) * | 2000-01-31 | 2007-05-09 | スズキ株式会社 | オイル通路構造 |
-
2002
- 2002-07-18 DE DE2002132528 patent/DE10232528B4/de not_active Expired - Fee Related
-
2003
- 2003-06-18 DE DE50313539T patent/DE50313539D1/de not_active Expired - Lifetime
- 2003-06-18 EP EP20030013770 patent/EP1382807B1/de not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19831515A1 (de) | 1998-07-14 | 2000-01-20 | Bayerische Motoren Werke Ag | Betriebsverfahren für eine Fahrzeugkraftmaschine |
| DE10027080A1 (de) | 1999-06-10 | 2001-03-22 | Unisia Jecs Corp | Öldrucksteuervorichtung für einen Verbrennungsmotor |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2857720A1 (fr) * | 2003-07-16 | 2005-01-21 | Denso Corp | Valve de permutation de passages d'huile contenant un filtre a huile |
| US7328773B2 (en) | 2003-07-16 | 2008-02-12 | Denso Corporation | Oil passage switching valve having oil filter |
| EP1635044A3 (de) * | 2004-09-14 | 2010-08-04 | Yamaha Hatsudoki Kabushiki Kaisha | Motor |
| WO2008040741A1 (en) * | 2006-10-05 | 2008-04-10 | Delphi Technologies, Inc. | Fluid control valve |
| LU92162B1 (de) * | 2012-03-05 | 2014-09-29 | Schaeffler Technologies Ag | Filteranordnung eindes Steuerventils für einen Nockenwellenversteller |
| US8931449B2 (en) | 2012-03-05 | 2015-01-13 | Schaeffler Technologies Gmbh & Co. Kg | Filter arrangement of a control valve for a camshaft adjuster |
| WO2016122829A1 (en) * | 2015-01-30 | 2016-08-04 | Caterpillar Inc. | Injector inlet fuel screen |
| EP3306055A1 (de) * | 2016-10-04 | 2018-04-11 | ECO Holding 1 GmbH | Umschaltventil und pleuel für eine brennkraftmaschine mit variabler verdichtung |
| EP3456938A1 (de) * | 2016-10-04 | 2019-03-20 | ECO Holding 1 GmbH | Pleuel für eine brennkraftmaschine mit variabler verdichtung |
| US10352202B2 (en) | 2016-10-04 | 2019-07-16 | ECO Holding 1 GmbH | Switch valve and connecting rod for variable compression internal combustion engine |
| US10302059B2 (en) | 2017-01-24 | 2019-05-28 | Caterpillar Inc. | Filter for a fuel injector |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1382807B1 (de) | 2011-03-16 |
| DE50313539D1 (de) | 2011-04-28 |
| EP1382807A3 (de) | 2007-12-26 |
| DE10232528B4 (de) | 2004-07-22 |
| DE10232528A1 (de) | 2004-02-19 |
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