EP0941403B1 - Axialkolbenmaschine mit lagerspülung - Google Patents
Axialkolbenmaschine mit lagerspülung Download PDFInfo
- Publication number
- EP0941403B1 EP0941403B1 EP97948792A EP97948792A EP0941403B1 EP 0941403 B1 EP0941403 B1 EP 0941403B1 EP 97948792 A EP97948792 A EP 97948792A EP 97948792 A EP97948792 A EP 97948792A EP 0941403 B1 EP0941403 B1 EP 0941403B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- axial piston
- positioning
- bore
- piston machine
- mirror 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F04B1/2014—Details or component parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/26—Control
- F04B1/30—Control of machines or pumps with rotary cylinder blocks
- F04B1/32—Control of machines or pumps with rotary cylinder blocks by varying the relative positions of a swash plate and a cylinder block
- F04B1/328—Control of machines or pumps with rotary cylinder blocks by varying the relative positions of a swash plate and a cylinder block by changing the inclination of the axis of the cylinder barrel relative to the swash plate
Definitions
- the invention relates to an axial piston machine in a swivel slide design with a internal flushing.
- the invention relates to an axial piston machine according to the preamble of Claim 1 as e.g. is known from DE 42 15 869 C1 or EP-A-728945.
- This publication discloses an axial piston machine in a swivel slide design.
- the well-known Axial piston machine comprises a pivotable cylinder drum, and one in one Drive shaft bearing mounted drive shaft.
- the drive shaft is with one Drive shaft flange connected, in which in cylinder bores of the cylinder drum movable pistons are articulated and on which the cylinder drum over a Center pin supports.
- Furthermore, is between the cylinder drum and an end face End plate provided a lenticular control mirror body, the control kidneys for cyclical connection of the cylinder bores with the working lines.
- the invention is therefore based on the object for an axial piston machine in To provide a suitable flushing agent supply.
- the object is in connection with the characterizing features of claim 1 solved with the generic features.
- the invention is based on the finding that the detergent channel for Flushing agent supply for the drive shaft bearing and, if necessary, additional for flushing the housing in a simple manner through the adjusting pin and the control mirror body to the Center pin can be guided.
- the flushing and feed pressure valve can then be outside of the control mirror body may be arranged, which is the construction of the control mirror body significantly simplified, so that the mechanical strength of the control mirror body by the measures required for the formation of the flushing channel are not weakened.
- an externally provided flushing and feed pressure valve from is adjustable on the outside and the amount of detergent introduced into the detergent channel to the actual needs can be easily adjusted.
- the central bore of the control mirror body for receiving the adjusting pin can according to claim 2 at the same time be part of the detergent channel, so that on the Control mirror body to form the detergent channel no constructive Changes are necessary.
- the only necessary modification of the adjusting pin for the detergent channel is the formation of this hole.
- the Bore can be formed with such a small diameter that the mechanical strength of the adjusting pin is insignificant due to this measure, especially weakened by less than 1%.
- the actuating device can be operated hydraulically Have adjusting piston in which a transverse bore is formed around the adjusting pin to record.
- the actuating piston can according to claim 5 in one End plate trained longitudinal bore to be provided, which are provided with a longitudinal groove is, in which the bore of the adjusting pin either directly or indirectly via the Cross bore of the control piston opens.
- the longitudinal groove ensures one Detergent supply in every position of the control piston and the one used in it Adjusting pin. Regardless of the pivoting position of the cylinder drum, the Control mirror body and the adjusting pin inserted in the adjusting piston is one Connection of the hole of the adjusting pin with that provided in the end plate Longitudinal groove ensured.
- the longitudinal groove can according to claim 6 with a Supply line for the detergent be connected.
- the flushing and feed pressure valve for Introducing the detergent into the detergent channel can be at the mouth of the Supply line must be mounted externally on the end plate.
- the flushing and feed pressure valve is particularly accessible and adjustable from the outside.
- the detergent channel according to the invention can be next to one Flushing agent supply for the drive shaft bearing and also a housing flush serve. This results in a particularly favorable heat balance Axial piston machine, because the detergent dissipates the heat loss of the axial piston machine is carried away.
- Fig. 1 shows an embodiment of an axial piston machine according to the invention in Swivel carriage design in an axial longitudinal section.
- a housing 2 of the axial piston machine 1 there is a drive shaft 3 via two roller bearings 4 and 5 rotatably mounted.
- a drive shaft flange 6 On the drive shaft 3 is a drive shaft flange 6 in Embodiment molded in one piece.
- Cylinder drum 8 In the housing interior 7 is one Cylinder drum 8 can be pivoted about a pivot axis perpendicular to the plane of the drawing arranged.
- In the cylinder drum 8 are several on a pitch circle with the same Spaced cylinder bores 9, 10 are provided.
- pistons 11, 12 are slidably guided outside the cylinder drum 8
- Ball heads 13, 14 are formed.
- the ball heads 13, 14 of the pistons 11, 12 are in spherical bearings 15 of the drive shaft flange 6 articulated.
- the cylinder drum 8 is on the drive shaft flange 6 via a central pin 16 rotatably and pivotably mounted. Between an end plate 17 and the Cylinder drum 8 is on the side facing away from the drive shaft flange 6 Cylinder drum 8 a lens-shaped in the embodiment Control mirror body 18 arranged.
- the cylinder drum 8 is in a Center pin 16 provided spring 19 against the control mirror body 18 or the End plate 17 biased.
- the central pin 16 also has a ball head 20 on, which is rotatable in a further spherical bearing 21 of the drive shaft flange 6 and is pivotally mounted.
- Cylinder drum 8 serves the control mirror body 18 as a swivel slide.
- One opposite the partially cylindrical or spherical boundary surface 22 of the cylinder drum 8 of the control mirror body 18 slides when adjusting the cylinder drum 8 on one correspondingly shaped sliding surface 23 along the end plate 17.
- the control mirror body 18 has a central bore 24, into which an adjusting pin 25 is used so that the adjusting pin 25 to compensate for the pivoting movement of the Control mirror body 18 pivotable and axially displaceable in its central bore 24 is.
- an actuator in a longitudinal bore 27 of the end plate 17 displaceable adjusting piston 28 comprises.
- the Adjusting pin 25 is inserted into a transverse bore 29 of the adjusting piston 28.
- the actuating piston 28 is connected to a control pressure line connected to a connection 30 with a Actuating pressure can be applied so that the actuating piston 28 against a return spring 31st is movable.
- the axial piston machine 1 is in the direction of smaller Displacement swung back.
- the axial piston machine 1 is provided with a detergent channel Provide detergent supply for the drive shaft bearings 4, 5.
- the detergent channel includes a supply line 40 provided in the end plate 17, on which a flushing and Feed pressure valve 41 is connected.
- the purge and feed pressure valve 41 is on externally the end plate 17 arranged and for adjusting the detergent pressure and The amount of detergent is therefore easily accessible from the outside.
- the feed line 40 opens into a Longitudinal groove 42 which is provided peripherally on the longitudinal bore 27.
- a bore 43 is provided which on the control mirror body 18th remote side either opens directly into the longitudinal groove 42 or, as in in Fig. 1 illustrated embodiment, indirectly via the transverse bore 29 in the Longitudinal groove 42 opens out.
- the length of the longitudinal groove 42 is such that in each Pivot position of the cylinder drum 8 a connection between the bore 43 of the Adjusting pin 25 and the longitudinal groove 42 is ensured.
- FIG. 2 For better clarification of the detergent channel guide in this area, in FIG. 2 a section along the line A-A is shown. A cross section of the is shown End plate 17 and in the end plate 17 for guiding the actuating piston 28 provided longitudinal bore 27.
- the adjusting pin 25 has an axial bore 43 which is part of the detergent channel according to the invention.
- the feed line 40 is, as also from the 2, with the longitudinal groove 42 provided peripherally on the longitudinal bore 27 connected.
- the bore 43 of the adjusting pin 25 opens out indirectly via that in the area 44 through the adjusting pin 25 not filled transverse bore 29 of the actuating piston 28 in the Longitudinal groove 42 out.
- the bore 43 of the adjusting pin 25 in the longitudinal groove 42 opens out immediately when the adjusting pin 25 has the transverse bore 29 completely filled out.
- the mechanical strength is provided by the bore 43 provided in the adjusting pin 25 of the adjusting pin 25 only slightly affected.
- the diameter of the bore 43 can be dimensioned so small that there is a reduction in mechanical Strength of less than 1% results.
- the mechanical strength of the Control mirror body 18 is not influenced by the measures according to the invention, since the solution according to the invention does not change the design of the control mirror body 18 makes necessary.
- the detergent channel continues through the Central bore 24 of the control mirror body 18. It should be emphasized that the anyway existing central bore 24 of the control mirror body 18 without further modification also takes on the task of supplying the detergent.
- the detergent channel runs further through an axial bore 44 in the cylinder drum 8 and a bore 45 in the spring plate 46 to open into the spring space 47 of the center pin 16.
- Center pin 16 then runs a central bore 48 from the spring chamber 47 up to the spherical bearing 21.
- In the drive shaft 3 there are further connecting channels 49, 50 and 51 are provided, which open out directly in the area of the roller bearings 4, 5.
- On the spherical bearing 21 are both the central bore 48 of the central pin 16 and also the junction of the connecting channel 49 with trumpet-shaped extensions provided to ensure that in each pivoting position of the cylinder drum 8 Detergent flow is made possible.
- the detergent After flowing through the drive shaft bearing 4, 5, the detergent flows into the Housing interior 7 to this as leakage fluid through the housing opening 52 leave. This also ensures that the housing is flushed, which, among other things, the Heat dissipation is used for waste heat. In this way, the heat balance of the Axial piston machine 1 improved.
- the invention is not limited to the illustrated embodiment.
- the detergent flow to the adjusting pin 25 could also be in other ways, e.g. on the Adjusting piston 28 take place.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Detergent Compositions (AREA)
- Reciprocating Pumps (AREA)
- Hydraulic Motors (AREA)
Description
- Fig. 1
- einen Längsschnitt durch ein Ausführungsbeispiel der erfindungsgemäßen Axialkolbenmaschine; und
- Fig. 2
- einen Schnitt entlang der Linie A-A in Fig. 1.
Claims (8)
- Axialkolbenmaschine (1) in Schwenkschlittenbauweise miteiner schwenkbaren Zylindertrommel (8),einer in einer Triebwellenlagerung (4, 5) gelagerten Triebwelle (3), die mit einem Triebwellenflansch (6) verbunden ist, an welchem in Zylinderbohrungen (9, 10) der Zylindertrommel (8) bewegliche Kolben (11, 12) angelenkt sind und an welchem sich die Zylindertrommel (8) über einen Mittelzapfen (16) abstützt, wobei in dem Mittelzapfen (16) und in der Triebwelle (3) ein Spülkanal (45, 47 bis 51) zur Spülmittelversorgung der Triebwellenlagerung (4, 5) vorgesehen ist,einem Steuerspiegelkörper (18) mit Steuernieren, um die Zylinderbohrungen (9, 10) zyklisch mit einer Hoch- und einer Niederdruckleitung zu verbinden, undeiner Stelleinrichtung (26), durch deren Betätigung die Zylindertrommel (8) mitsamt dem Steuerspiegelkörper (18) verschwenkbar ist, wobei die Stelleinrichtung (26) über einen Stellzapfen (25) mit dem Steuerspiegelkörper (18) verbunden ist,
- Axialkolbenmaschine nach Anspruch 1,
dadurch gekennzeichnet, daß der Steuerspiegelkörper (18) eine Zentralbohrung (24) aufweist, in welcher der Stellzapfen (25) geführt ist und die Teil des Spülmittelkanals ist. - Axialkolbenmaschine nach Anspruch 2,
dadurch gekennzeichnet, daß in dem Stellzapfen (25) eine Bohrung (43) ausgebildet ist, die Teil des Spülmittelkanals ist und die in die Zentralbohrung (24) des Steuerspiegelkörpers (18) ausmündet. - Axialkolbenmaschine nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, daß die Steuereinrichtung (26) einen hydraulisch betätigbaren Stellkolben (28) umfaßt, der eine Querbohrung (29) aufweist, in welche der Stellzapfen (25) eingesetzt ist. - Axialkolbenmaschine nach Anspruch 3 und 4,
dadurch gekennzeichnet, daß der Stellkolben (28) in einer in einer Abschlußplatte (17) ausgebildeten Längsbohrung (27) geführt ist, die mit zumindest einer Längsrille (42) versehen ist, in die die Bohrung (43) des Stellzapfens (25) unmittelbar oder mittelbar über die Querbohrung (29) des Stellkolbens (28) ausmündet. - Axialkolbenmaschine nach Anspruch 5,
dadurch gekennzeichnet, daß in der Abschlußplatte (17) eine Zuführleitung (40) ausgebildet ist, um das Spülmittel der Längsrille (42) zuzuführen. - Axialkolbenmaschine nach Anspruch 6,
dadurch gekennzeichnet, daß die Zuführleitung (40) an ein Spül- und Speisedruckventil (41) angeschlossen ist. - Axialkolbenmaschine nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet, daß durch den Spülmittelkanal (40 - 43, 24, 44, 45, 47 - 51) gleichzeitig eine Gehäusespülung erfolgt und das Spülmittel über eine Gehäuseöffnung (52) aus dem Gehäuse (2) der Axialkolbenmaschine (1) austritt.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19649195A DE19649195C1 (de) | 1996-11-27 | 1996-11-27 | Axialkolbenmaschine mit Lagerspülung |
DE19649195 | 1996-11-27 | ||
PCT/EP1997/005870 WO1998023860A1 (de) | 1996-11-27 | 1997-10-23 | Axialkolbenmaschine mit lagerspülung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0941403A1 EP0941403A1 (de) | 1999-09-15 |
EP0941403B1 true EP0941403B1 (de) | 2001-12-19 |
Family
ID=7812954
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97948792A Expired - Lifetime EP0941403B1 (de) | 1996-11-27 | 1997-10-23 | Axialkolbenmaschine mit lagerspülung |
Country Status (4)
Country | Link |
---|---|
US (1) | US6279452B1 (de) |
EP (1) | EP0941403B1 (de) |
DE (2) | DE19649195C1 (de) |
WO (1) | WO1998023860A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102022200766A1 (de) | 2022-01-25 | 2023-07-27 | Robert Bosch Gesellschaft mit beschränkter Haftung | Axialkolbenmaschine mit einem gegossenen Gehäuse oder Gehäuseabschnitt sowie Verfahren zu dessen Herstellung |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19860023C5 (de) * | 1998-12-23 | 2011-04-28 | Brueninghaus Hydromatik Gmbh | Kolbenmaschine mit einer Dichtungsanordnung |
DE10030147C1 (de) * | 2000-06-20 | 2002-06-06 | Brueninghaus Hydromatik Gmbh | Axialkolbenmaschine |
DE10066008B4 (de) * | 2000-09-11 | 2004-04-22 | Sauer-Danfoss (Neumünster) GmbH & Co OHG | Schrägachsenverstelleinheit mit Kühlung durch einen Ölmassenstrom |
US7014429B2 (en) * | 2003-03-06 | 2006-03-21 | The United States Of America As Represented By The Administrator Of The U.S. Environmental Protection Agency | High-efficiency, large angle, variable displacement hydraulic pump/motor |
WO2004109107A1 (de) * | 2003-06-11 | 2004-12-16 | Brueninghaus Hydromatik Gmbh | Axialkolbenmaschine mit versetztem positionierelement und steuerscheibe für eine solche axialkolbenmaschine |
US6996980B2 (en) * | 2003-06-27 | 2006-02-14 | Sauer-Danfoss Inc. | Bent axis hydrostatic unit with multiple yokes |
DE102004061863A1 (de) * | 2004-12-22 | 2006-07-06 | Brueninghaus Hydromatik Gmbh | Kolben für Axialkolbenmaschine in Schrägachsenbauweise und Verfahren zur Herstellung solcher Kolben |
EP1887253A4 (de) * | 2005-05-26 | 2010-11-17 | Hitachi Construction Machinery | Hydraulische antriebsvorrichtung |
WO2007060822A1 (ja) * | 2005-11-24 | 2007-05-31 | Komatsu Ltd. | 斜軸式可変容量型ポンプ・モータ |
EP2012010A1 (de) * | 2006-03-14 | 2009-01-07 | Ronghui Zhu | Axialkolbenpumpe oder -motor |
US8096228B1 (en) * | 2008-08-08 | 2012-01-17 | Sauer-Danfoss Inc. | Bent axis dual yoke hydromodule |
DE102009058332B4 (de) * | 2009-12-15 | 2019-11-28 | Robert Bosch Gmbh | Axialkolbenmaschine |
US8316995B2 (en) * | 2009-12-22 | 2012-11-27 | Parker-Hannifin Corporation | Hydraulic machine with oil dams |
DE102011075077A1 (de) * | 2011-05-02 | 2012-11-08 | Zf Friedrichshafen Ag | Axialkolbenmaschine in Schrägachsenbauweise |
JP5063823B1 (ja) * | 2012-04-13 | 2012-10-31 | 株式会社小松製作所 | 斜軸式アキシャルピストンポンプ・モータ |
DE202012009130U1 (de) * | 2012-09-24 | 2013-09-26 | Josef Kränzle GmbH & Co. KG | Kolbenpumpe für ein Hochdruckreinigungsgerät |
CN102943739A (zh) * | 2012-11-15 | 2013-02-27 | 上海电气液压气动有限公司 | 一种液压马达的排量限制机构 |
CN102943752A (zh) * | 2012-11-15 | 2013-02-27 | 上海电气液压气动有限公司 | 一种液压泵用排量调节驱动机构 |
CN102913408A (zh) * | 2012-11-15 | 2013-02-06 | 上海电气液压气动有限公司 | 一种斜轴式柱塞液压泵/马达 |
CN102937068A (zh) * | 2012-11-15 | 2013-02-20 | 上海电气液压气动有限公司 | 一种用于液压马达的排量微调机构 |
DE102012022695A1 (de) | 2012-11-20 | 2014-05-22 | Robert Bosch Gmbh | Hydrostatische Axialkolbenmaschine in Schrägachsenbauweise |
DE102012222170A1 (de) * | 2012-12-04 | 2014-06-05 | Robert Bosch Gmbh | Axialkolbenmaschine mit geneigter Zylinderbohrung |
DE102012222172A1 (de) * | 2012-12-04 | 2014-06-05 | Robert Bosch Gmbh | Axialkolbenmaschine mit kegelförmigem Kolben |
CA2913062C (en) * | 2013-05-22 | 2020-06-02 | Hydac Drive Center Gmbh | Axial piston pump having a swash-plate type construction |
CN107060882A (zh) * | 2015-12-12 | 2017-08-18 | 熵零技术逻辑工程院集团股份有限公司 | 一种缩小可变排量流体机构余隙容积的方法、流体机构 |
DE102017200244A1 (de) * | 2017-01-10 | 2018-07-12 | Robert Bosch Gmbh | Hydrostatischer Axialkolbenmotor in Schrägachsenbauweise |
DE102019205140A1 (de) * | 2019-04-10 | 2020-10-15 | Robert Bosch Gmbh | Axialkolbenmaschine mit in die Anschlussplatte integrierten Ventilschiebern |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
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DE2207658A1 (de) * | 1972-02-18 | 1973-08-30 | Heinrich Ruebel | Hochdruck-axialkolbenpumpe mit durch taumelscheiben getriebenen gegenlaeufigen kolben |
DE2625730A1 (de) * | 1976-06-09 | 1977-12-22 | Regar Karl Nikolaus Dipl Ing | Verfahren und vorrichtung zur verstellung der foerdervolumen von hydrostatischen verdraengermaschinen |
DE2947553C2 (de) * | 1979-11-26 | 1982-03-25 | Hydromatik Gmbh, 7900 Ulm | Lagerung der Triebwelle einer Axialkolbenmaschine in Schrägachsenbauweise |
DE3125264A1 (de) * | 1981-06-26 | 1983-01-13 | Hydromatik Gmbh, 7900 Ulm | Schraegachsen-axialkolbenmaschine mit einer mitnahmeplatte fuer die zylindertrommel |
DE3134537C2 (de) * | 1981-09-01 | 1986-03-27 | Moskovskoe naučno-proizvodstvennoe ob"edinenie po stroitel'nomu i dorožnomu mašinostroeniju VNIISTROIDORMAŠ, Moskva | Hydraulische Axialkolbenmaschine mit rotierenden Verdrängungskörpern |
DE3333812C2 (de) * | 1983-09-19 | 1986-08-07 | Hydromatik GmbH, 7915 Elchingen | Schwenktrommel-Axialkolbenmaschine |
DE3638890A1 (de) * | 1986-07-31 | 1988-02-04 | Hydromatik Gmbh | Axial-kolbenmaschine mit einer einrichtung zum spuelen des kreislaufs |
DE4215869C2 (de) * | 1992-05-14 | 1996-01-11 | Hydromatik Gmbh | Hydrostatische Maschine mit Leckölabführung |
DE29503060U1 (de) * | 1995-02-23 | 1995-04-06 | Brueninghaus Hydromatik GmbH, 89275 Elchingen | Axialkolbenmaschine |
-
1996
- 1996-11-27 DE DE19649195A patent/DE19649195C1/de not_active Expired - Fee Related
-
1997
- 1997-10-23 EP EP97948792A patent/EP0941403B1/de not_active Expired - Lifetime
- 1997-10-23 DE DE59705918T patent/DE59705918D1/de not_active Expired - Lifetime
- 1997-10-23 US US09/242,603 patent/US6279452B1/en not_active Expired - Lifetime
- 1997-10-23 WO PCT/EP1997/005870 patent/WO1998023860A1/de active IP Right Grant
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102022200766A1 (de) | 2022-01-25 | 2023-07-27 | Robert Bosch Gesellschaft mit beschränkter Haftung | Axialkolbenmaschine mit einem gegossenen Gehäuse oder Gehäuseabschnitt sowie Verfahren zu dessen Herstellung |
Also Published As
Publication number | Publication date |
---|---|
DE19649195C1 (de) | 1998-01-08 |
EP0941403A1 (de) | 1999-09-15 |
US6279452B1 (en) | 2001-08-28 |
DE59705918D1 (de) | 2002-01-31 |
WO1998023860A1 (de) | 1998-06-04 |
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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: 19981119 |
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