ES2065729T3 - Arbol de levas para el mando de las valvulas de motores de combustion. - Google Patents
Arbol de levas para el mando de las valvulas de motores de combustion.Info
- Publication number
- ES2065729T3 ES2065729T3 ES92110349T ES92110349T ES2065729T3 ES 2065729 T3 ES2065729 T3 ES 2065729T3 ES 92110349 T ES92110349 T ES 92110349T ES 92110349 T ES92110349 T ES 92110349T ES 2065729 T3 ES2065729 T3 ES 2065729T3
- Authority
- ES
- Spain
- Prior art keywords
- cam
- axis
- shaft
- camshaft
- control
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
- F16D1/08—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key
- F16D1/0852—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key with radial clamping between the mating surfaces of the hub and shaft
- F16D1/0858—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key with radial clamping between the mating surfaces of the hub and shaft due to the elasticity of the hub (including shrink fits)
-
- 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
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for
-
- 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
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—Camshafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H53/00—Cams ; Non-rotary cams; or cam-followers, e.g. rollers for gearing mechanisms
- F16H53/02—Single-track cams for single-revolution cycles; Camshafts with such cams
- F16H53/025—Single-track cams for single-revolution cycles; Camshafts with such cams characterised by their construction, e.g. assembling or manufacturing features
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P2700/00—Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
- B23P2700/02—Camshafts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49229—Prime mover or fluid pump making
- Y10T29/49293—Camshaft making
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/49—Member deformed in situ
- Y10T403/4966—Deformation occurs simultaneously with assembly
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/21—Elements
- Y10T74/2101—Cams
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Gears, Cams (AREA)
Abstract
EL ARBOL DE LEVAS SIRVE PARA LA REGULACION DE VALVULAS EN MAQUINAS DE COMBUSTION INTERNA. POSEE UN EJE (1) Y AL MENOS UNA LEVA (2) COLOCADA SOBRE EL EJE Y UNIDO CON EL DE FORMA FIJA, QUE DISPONE DE UNA ESCOTADURA (4) PARA LA COLOCACION DEL EJE. EL EJE DISPONE EN CADA ZONA, EN LA QUE ESTA PREVISTA LA LEVA, DIAMETROS AGRANDADOS EN COMPARACION CON OTRAS ZONAS DEL EJE EN FORMA DE SECCIONES. ESTAS ZONAS SON FABRICADAS POR MEDIO DE RODILLOS O BOLAS, CON LO QUE SE GENERA UNA ABOMBAMIENTO O UN NERVIO QUE DISCURRE ALREDEDOR DEL EJE A TRAVES DE UN PROCESO DE ELIMINACION DE MATERIAL EN DIRECCION PERIMETRICA. LA LEVA (2) ESTA CONFORMADA A TRAVES DE UN PROCESO DE FORJA. LA ESCOTADURA (4) EN LA LEVA (2) PARA LA COLOCACION DEL EJE (1) ESTA AL MENOS SOBRE UNA CARA Y AL MENOS SOBRE UNA PARTE EN SU LONGITUD AXIAL ABOCARDADA EN FORMA DE EMBUDO. LA MEDIDA DE LA ABERTURA DEL ABOCARDAMIENTO (6) DE TIPO DE EMBUDO CORRESPONDE APROXIMADAMENTE CON LA ALTURA RADIAL DEL ABOMBAMIENTO O DEL NERVIO (7).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4121951A DE4121951C1 (es) | 1991-07-03 | 1991-07-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2065729T3 true ES2065729T3 (es) | 1995-02-16 |
Family
ID=6435302
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES92110349T Expired - Lifetime ES2065729T3 (es) | 1991-07-03 | 1992-06-19 | Arbol de levas para el mando de las valvulas de motores de combustion. |
Country Status (6)
Country | Link |
---|---|
US (1) | US5307708A (es) |
EP (1) | EP0521354B1 (es) |
JP (1) | JP3197613B2 (es) |
KR (1) | KR100254125B1 (es) |
DE (2) | DE4121951C1 (es) |
ES (1) | ES2065729T3 (es) |
Families Citing this family (56)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6167856B1 (en) * | 1992-11-12 | 2001-01-02 | Ford Global Technologies, Inc. | Low friction cam shaft |
WO1995014178A1 (de) * | 1993-11-15 | 1995-05-26 | Kautt & Bux Commutator Gmbh | Vorrichtung mit drehfest gelagerter welle |
DE4420092C3 (de) * | 1994-06-09 | 2001-08-09 | Daimler Chrysler Ag | Verfahren zum Herstellen einer gebauten Nockenwelle mit induktionsgehärteten Nocken |
DE19608983A1 (de) * | 1995-03-17 | 1996-09-19 | Volkswagen Ag | Steuerwelle und Verfahren zu ihrer Herstellung |
DE19520306C2 (de) * | 1995-06-02 | 1998-05-20 | Ford Werke Ag | Zusammengesetzte Nockenwelle, insbesondere für Brennkraftmaschinen |
DE19625554C2 (de) * | 1996-06-26 | 1999-07-29 | Hans Dipl Ing Kuehl | Verfahren und Einrichtung zum drehfesten Verbinden einer Welle mit mindestens einem auf der Welle angeordnetem Teil |
DE19645112A1 (de) * | 1996-11-01 | 1998-05-14 | Roland Klaar | Gebaute Nockenwelle |
DE19710847C2 (de) * | 1997-03-15 | 1999-01-07 | Selzer Fertigungstech | Zusammengesetzte Steuerwelle und Verfahren für deren Herstellung |
DE59808217D1 (de) * | 1997-03-21 | 2003-06-12 | Stefan Battlogg | Nockenwelle |
JPH1136831A (ja) * | 1997-07-18 | 1999-02-09 | Toyota Motor Corp | 三次元カムシャフト及びその製造方法 |
DE59910640D1 (de) | 1998-05-04 | 2004-11-04 | Thyssen Krupp Automotive Ag | Einrichtung mit einer welle und mit zumindest einer auf dieser welle angebrachten nabe sowie ein verfahren zur herstellung dieser einrichtung |
DE19925028A1 (de) * | 1999-06-01 | 2000-12-21 | Thyssen Krupp Automotive Ag | Nocken für zusammengesetzte Nockenwelle |
DE19938791B4 (de) * | 1999-08-16 | 2004-07-29 | Erich Neumayer Gmbh & Co Kg | Verfahren zur Herstellung einer gebauten Welle und Vorrichtung zur Durchführung dieses Verfahrens |
DE10027517A1 (de) * | 2000-06-06 | 2001-12-13 | Thyssen Krupp Automotive Ag | Einrichtung mit einer Welle und mit zumindest einer auf dieser Welle angebrachten Nabe und Verfahren für die Herstellung dieser Einrichtung |
ATE344379T1 (de) | 2000-08-18 | 2006-11-15 | Jesel Inc | Modulare nockenwelle |
JP3820347B2 (ja) * | 2000-12-28 | 2006-09-13 | 本田技研工業株式会社 | カム組立体およびカム位置決め装置 |
FR2824887B1 (fr) * | 2001-05-16 | 2003-08-29 | P S M Fixation | Procede d'immobilisation de l'axe des pignons satellites du differentiel d'un vehicule automobile dans le boitier de differentiel, et differentiel realise selon ce procede |
EP1409891B1 (de) | 2001-07-20 | 2006-05-03 | ThyssenKrupp Presta AG | Nocken mit aufnahmeöffnugen für eine welle und verfahren zur herstellung einer nockenwelle mit diesen nocken |
ATE368174T1 (de) * | 2001-09-27 | 2007-08-15 | Thyssenkrupp Presta Ag | Nockenwelle und verfahren zur herstellung einer nockenwelle |
DE10160246C1 (de) | 2001-12-07 | 2003-04-17 | Thyssen Krupp Automotive Ag | Hohlwelle |
DE10216324A1 (de) * | 2002-04-13 | 2003-10-30 | Thyssen Krupp Automotive Ag | Zusammengesetzte Funktionswelle |
EP1387102A1 (de) * | 2002-07-31 | 2004-02-04 | Robert Bürgler | Aufpressbare Nabe und Nockenwelle |
DE502004002527D1 (de) * | 2004-01-12 | 2007-02-15 | Robert Buergler | Anordnung und Verfahren zum Herstellen einer Nockenwelle |
DE102004011815A1 (de) | 2004-03-11 | 2005-09-29 | Daimlerchrysler Ag | Nockenwelle und Verfahren zur Herstellung einer Nockenwelle |
DE102004062518B4 (de) * | 2004-12-24 | 2006-10-26 | Thyssenkrupp Automotive Ag | Nocken für gebaute Nockenwellen |
DE102005014449A1 (de) | 2005-03-30 | 2006-10-05 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Nockenwelle sowie Verfahren zur Herstellung einer Nockenwelle |
DE102005016201A1 (de) | 2005-04-07 | 2006-10-12 | Thyssenkrupp Automotive Ag | Mehrteiliger Multifunktionsnocken |
ATE478269T1 (de) * | 2005-06-20 | 2010-09-15 | Thyssenkrupp Presta Tecct Ag | Gebaute nockenwelle |
US7234428B2 (en) * | 2005-07-28 | 2007-06-26 | Briggs And Stratton Corporation | Cam shaft assembly for an engine |
DE102006022401A1 (de) * | 2006-05-13 | 2007-11-15 | Schaeffler Kg | Verfahren zur Verbindung einer Nockenwelle mit einem Nockenwellenversteller |
DE102006027494A1 (de) * | 2006-06-14 | 2007-12-20 | Henkel Kgaa | Welle mit fixiertem Bauteil |
DE102006051129B3 (de) * | 2006-10-25 | 2008-06-26 | Thyssenkrupp Presta Ag | Verbindung einer Antriebswelle |
DE102007018919A1 (de) * | 2007-04-19 | 2008-10-23 | Thyssenkrupp Presta Ag | Zahnstange oder Gewindestange |
DE102007018920B3 (de) * | 2007-04-19 | 2008-08-28 | Thyssenkrupp Presta Ag | Antriebswelle |
DE502008001720D1 (de) | 2007-04-19 | 2010-12-16 | Thyssenkrupp Presta Ag | Zahnstange oder gewindestange |
US7883288B2 (en) * | 2007-09-28 | 2011-02-08 | Minnis & Samson Pty, Ltd. | Connector |
JP5219246B2 (ja) * | 2007-12-28 | 2013-06-26 | 武蔵精密工業株式会社 | カムシャフトの成形方法 |
DE102009014895B4 (de) | 2009-03-25 | 2012-05-24 | Audi Ag | Welle-Nabe-Verbindung |
DE102009019788B4 (de) | 2009-05-02 | 2020-06-18 | Thyssenkrupp Presta Teccenter Ag | System zur Steuerung eines Gaswechselventils einer Brennkraftmaschine |
DE102009025023A1 (de) | 2009-06-10 | 2010-12-16 | Neumayer Tekfor Holding Gmbh | Verfahren zur Herstellung einer Nockenwelle und entsprechende Nockenwelle |
JP5321325B2 (ja) * | 2009-07-30 | 2013-10-23 | 三菱自動車工業株式会社 | 内燃機関のカムシャフト構造 |
DE102009037128A1 (de) * | 2009-08-11 | 2011-02-17 | Neumayer Tekfor Holding Gmbh | Verfahren zur Herstellung einer Nockenwelle und Nockenwelle |
DE102009057633B3 (de) * | 2009-12-09 | 2011-03-31 | Thyssenkrupp Presta Teccenter Ag | Verfahren zur Herstellung einer gebauten Nockenwelle, Nockenwellengrundkörper und gebaute Nockenwelle |
DE102011087049A1 (de) * | 2011-11-24 | 2013-05-29 | Mahle International Gmbh | Verfahren zum Fügen von Bauelementen auf einer Welle |
US9360029B2 (en) | 2013-03-01 | 2016-06-07 | The Boeing Company | Frictional Coupling |
DE102013208609A1 (de) * | 2013-05-10 | 2014-11-13 | Mahle International Gmbh | Nockenwelle |
DE102013210403A1 (de) * | 2013-06-05 | 2014-12-11 | Mahle International Gmbh | Verfahren zur Herstellung einer Nockenwelle |
DE102013225984B4 (de) * | 2013-12-16 | 2017-03-23 | Schaeffler Technologies AG & Co. KG | Hydraulische Spannvorrichtung für einen Zugmitteltrieb |
DE102014106614A1 (de) | 2014-05-12 | 2015-11-12 | Thyssenkrupp Presta Teccenter Ag | Rotorwelle mit Blechpaket |
DE102014015649A1 (de) * | 2014-10-24 | 2016-04-28 | Thyssenkrupp Presta Teccenter Ag | Verfahren zum Herstellen einer verstellbaren Nockenwelle und verstellbare Nockenwelle |
DE102016206640A1 (de) | 2016-04-20 | 2017-10-26 | Thyssenkrupp Ag | Trägerrohr einer Nockenwelle mit variierender Wandstärke |
DE102016215090A1 (de) * | 2016-08-12 | 2018-02-15 | Thyssenkrupp Ag | Verfahren zur Montage einer Rotorwelle eines Elektromotors |
DE102017201578B4 (de) | 2017-02-01 | 2024-02-15 | Thyssenkrupp Ag | Welle-Nabe-Verbund und Verfahren zur Erzeugung eines Welle-Nabe-Verbundes |
DE102018204437A1 (de) | 2018-03-22 | 2019-10-17 | Volkswagen Aktiengesellschaft | Verfahren zur Montage eines Bauelementes auf einer Hohlwelle sowie ein auf diese Weise hergestellter Rotor für eine elektrische Maschine |
JP6518817B2 (ja) * | 2018-05-18 | 2019-05-22 | ミネベアミツミ株式会社 | モータ及びモータ構造体 |
DE102022200698A1 (de) | 2022-01-21 | 2023-07-27 | Thyssenkrupp Ag | Sensorrad für eine Nockenwelle, Nockenwelle sowie Verfahren zum Herstellen einer Nockenwelle mit einem Sensorrad |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2254503A (en) * | 1935-09-30 | 1941-09-02 | Stewart Warner Corp | Method of making lubricating apparatus |
US3734697A (en) * | 1970-07-13 | 1973-05-22 | Roth Co Roy E | Pump impeller making |
DE2336241A1 (de) * | 1973-07-17 | 1975-02-06 | Volkswagenwerk Ag | Poly-metallische, zusammengefuegte steuerwellen |
DE2641879A1 (de) * | 1976-09-17 | 1978-03-23 | Bosch Gmbh Robert | Anordnung an durch axialpressung zusammenzufuegenden, koaxiale sitzflaechen aufweisenden inneren und aeusseren teilen |
JPS5854901B2 (ja) * | 1977-09-08 | 1983-12-07 | トヨタ自動車株式会社 | カムシヤフトの製造方法及びその装置 |
JPS551924A (en) * | 1978-06-21 | 1980-01-09 | Hitachi Ltd | Joint structure of metal and its jointing method |
JPS6033302A (ja) * | 1983-08-03 | 1985-02-20 | Nippon Piston Ring Co Ltd | カムシャフトの製造方法 |
US4597365A (en) * | 1985-02-07 | 1986-07-01 | General Motors Corporation | Camshaft assembly and method |
CH670137A5 (de) * | 1985-03-06 | 1989-05-12 | Fischer Ag Georg | Verfahren zur herstellung einer verbundnockenwelle. |
JPS62107925A (ja) * | 1985-11-05 | 1987-05-19 | Toshiba Corp | 軸自動***方法 |
US4781076A (en) * | 1986-01-17 | 1988-11-01 | The Torrington Company | Camshaft for reciprocating piston engines |
DE3606111A1 (de) * | 1986-02-26 | 1987-08-27 | Supervis Ets | Nockenwelle |
CA1290596C (en) * | 1987-03-09 | 1991-10-15 | Philip D. Arnold | Tubular camshaft assemblies, method and apparatus |
DE3710190A1 (de) | 1987-03-27 | 1988-10-13 | Licentia Gmbh | Verfahren zum aufbringen eines loetfaehigen leiterbahnenmusters |
JPH0672616B2 (ja) * | 1987-04-21 | 1994-09-14 | 株式会社ゼクセル | 鋼シャフト複合アルミニウム合金ローター |
DE3717190A1 (de) * | 1987-05-22 | 1988-12-15 | Supervis Ets | Nockenwelle zur steuerung von ventilen bei verbrennungskraftmaschinen und verfahren zu ihrer herstellung |
SE459517B (sv) * | 1987-10-09 | 1989-07-10 | Maskinteknik Foersaeljnings Ol | Anordning foer hoppassning av detaljer |
FR2630790B1 (fr) * | 1988-04-28 | 1994-04-08 | Valtubes | Procede d'assemblage d'un arbre a cames rapportees et arbre a cames ainsi obtenu |
-
1991
- 1991-07-03 DE DE4121951A patent/DE4121951C1/de not_active Expired - Fee Related
-
1992
- 1992-06-19 ES ES92110349T patent/ES2065729T3/es not_active Expired - Lifetime
- 1992-06-19 DE DE59200648T patent/DE59200648D1/de not_active Expired - Lifetime
- 1992-06-19 EP EP92110349A patent/EP0521354B1/de not_active Expired - Lifetime
- 1992-06-23 JP JP16507492A patent/JP3197613B2/ja not_active Expired - Lifetime
- 1992-07-01 US US07/907,253 patent/US5307708A/en not_active Expired - Lifetime
- 1992-07-03 KR KR1019920011867A patent/KR100254125B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
JPH05187520A (ja) | 1993-07-27 |
KR930002647A (ko) | 1993-02-23 |
KR100254125B1 (ko) | 2000-04-15 |
US5307708A (en) | 1994-05-03 |
EP0521354B1 (de) | 1994-10-19 |
DE59200648D1 (de) | 1994-11-24 |
DE4121951C1 (es) | 1992-12-24 |
EP0521354A1 (de) | 1993-01-07 |
JP3197613B2 (ja) | 2001-08-13 |
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