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1. WO2000040870 - AXIAL BEARING FOR HIGH-SPEED ROTORS

Publication Number WO/2000/040870
Publication Date 13.07.2000
International Application No. PCT/CH1999/000616
International Filing Date 21.12.1999
Chapter 2 Demand Filed 20.07.2000
IPC
F16C 23/04 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
CSHAFTS; FLEXIBLE SHAFTS; MECHANICAL MEANS FOR TRANSMITTING MOVEMENT IN A FLEXIBLE SHEATHING; ELEMENTS OF CRANKSHAFT MECHANISMS; PIVOTS; PIVOTAL CONNECTIONS; ROTARY ENGINEERING ELEMENTS OTHER THAN GEARING, COUPLING, CLUTCH OR BRAKE ELEMENTS; BEARINGS
23Bearings for exclusively rotary movement adjustable for aligning or positioning
02Sliding-contact bearings
04self-adjusting
F16C 27/08 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
CSHAFTS; FLEXIBLE SHAFTS; MECHANICAL MEANS FOR TRANSMITTING MOVEMENT IN A FLEXIBLE SHEATHING; ELEMENTS OF CRANKSHAFT MECHANISMS; PIVOTS; PIVOTAL CONNECTIONS; ROTARY ENGINEERING ELEMENTS OTHER THAN GEARING, COUPLING, CLUTCH OR BRAKE ELEMENTS; BEARINGS
27Elastic or yielding bearings or bearing supports, for exclusively rotary movement
08primarily for axial load, e.g. for vertically-arranged shafts
CPC
F16C 17/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
17Sliding-contact bearings for exclusively rotary movement
04for axial load only
F16C 23/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
23Bearings for exclusively rotary movement adjustable for aligning or positioning
02Sliding-contact bearings
04self-adjusting
F16C 2360/24
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
2360Engines or pumps
23Gas turbine engines
24Turbochargers
F16C 27/08
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
27Elastic or yielding bearings or bearing supports, for exclusively rotary movement
08primarily for axial load, e.g. for vertically-arranged shafts
Applicants
  • ABB TURBO SYSTEMS AG [CH/CH]; Haselstrasse 16 CH-5400 Baden, CH (AllExceptUS)
  • BAETTIG, Josef [CH/CH]; CH (UsOnly)
Inventors
  • BAETTIG, Josef; CH
Agents
  • ABB BUSINESS SERVICES LTD.; Intellectual Property (SLE-I) Haselstrasse 16/Bldg 699 CH-5401 Baden, CH
Priority Data
198 60 783.030.12.1998DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) AXIALLAGERUNG FÜR SCHNELLAUFENDE ROTOREN
(EN) AXIAL BEARING FOR HIGH-SPEED ROTORS
(FR) SYSTEME DE PALIER AXIAL POUR ROTORS A ROTATION RAPIDE
Abstract
(DE)
Aufgabe der Erfindung ist es, eine verbesserte Axiallagerung für schnellaufende Rotoren zu schaffen, die in axialer Richtung extrem steif und bezüglich Schiefstellung sehr weich ausgebildet ist. Zudem soll im Lagerbereich in axialer Richtung Bauraum eingespart werden. Erfindungsgemäss wird dies dadurch erreicht, dass der Lasteinleitungskörper (13) einen an den Lagerkamm (12) anschliessenden Laufflächenkörper (16), eine mit dem Lagerflansch (6) verbunden Membran (17) sowie einen den Laufflächenkörper (16) mit der Mebran (17) verbindenden Zentralring (18) aufweist. Der Lasteinleitujngskörper (13) ist vom Laufflächenkörper (16) zum Zentralring (18) verjüngt ausgebildet. Dabei ist die Membran (17) einseitig auf einem inkompressiblen Medium (23) abgestüzt, welches einen auf der dem Lagerkamm (12) abgewandten Seite der Membran (17) angeordneten Hohlraum (20) zwischen der Membran (17) und einem den Hohlraum (20) begrenzenden Element (19) füllt, wobei das den Hohlraum (20) begrenzende Element (19) entweder am Lagerflansch (6) abgestützt ist oder von letzterem gebildet wird.
(EN)
The aim of the invention is to provide an improved axial bearing for high-speed rotors which is extremely stiff in the axial direction and very soft as regards inclined positions. It also aims to save space in the axial direction in the area of the bearing. To this end the invention provides for the load induction element (13) to comprise a bearing race body (16) adjoining the bearing collar (12), a membrane (17) joined to the bearing flange (6) and a central ring (18) which connects the bearing race body (16) to the membrane (17). The load induction element (13) is configured such that it narrows from the bearing race body (16) towards the central ring (18). The membrane (17) is supported on one side on an incompressible medium (23) which fills a hollow space (20) which is situated on the side of the membrane (17) facing away from the bearing collar (12) and is defined between the membrane (17) and an element (19) delimiting said hollow space (20). The element (19) limiting the hollow space (20) is either supported by the bearing flange (6) or embodied by same.
(FR)
L'objectif de l'invention est de créer un système de palier axial amélioré pour rotors à rotation rapide qui soit extrêmement rigide dans le sens axial et très souple en ce qui concerne la position oblique. En outre de l'espace de montage doit être économisé dans la zone de support, dans le sens axial. Selon l'invention, cet objectif est atteint par le fait que le corps d'induction de charge (13) comporte un corps à surface de roulement (16) adjacent au collet de palier (12), une membrane (17) reliée à la bride de palier (6) et une bague centrale (18) qui relie le corps à surface de roulement (16) à la membrane (17). Le corps d'induction de charge (13) se rétrécit depuis le corps à surface de roulement (16), en direction de la bague centrale (18). La membrane (17) repose, d'un côté, contre un milieu (23) incompressible qui remplit une cavité (20) se trouvant sur le côté de la membrane (17) opposée au collet de palier (12), cavité qui est comprise entre la membrane (17) et un élément (19) qui la délimite. Ledit élément (19) délimitant la cavité (20) soit repose sur la bride de palier (6), soit est formé par cette dernière.
Also published as
Latest bibliographic data on file with the International Bureau