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1. WO2020114805 - TURBOCHARGER WITH A FLUID-DYNAMIC SLIDE BEARING, OR FLUID-DYNAMIC SLIDE BEARING

Publication Number WO/2020/114805
Publication Date 11.06.2020
International Application No. PCT/EP2019/082255
International Filing Date 22.11.2019
IPC
F16C 17/10 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
17Sliding-contact bearings for exclusively rotary movement
10for both radial and axial load
F01D 25/16 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
DNON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
25Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
16Arrangement of bearings; Supporting or mounting bearings in casings
F16C 27/02 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
02Sliding-contact bearings
CPC
F01D 25/16
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
25Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
16Arrangement of bearings; Supporting or mounting bearings in casings
F02C 7/06
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
CGAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
7Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
06Arrangements of bearings
F16C 17/10
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
10for both radial and axial load
F16C 27/02
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
02Sliding-contact bearings
Applicants
  • BMTS TECHNOLOGY GMBH & CO. KG [DE]/[DE]
  • BERGER, Martin [DE]/[DE]
Inventors
  • BERGER, Martin
  • KLEINSCHMIDT, Rüdiger
  • STETTER, Frieder
  • KUHNE, Oliver
  • SCHMITT, Steffen
Agents
  • HERRMANN, Jochen
Priority Data
10 2018 130 706.303.12.2018DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) ABGASTURBOLADER MIT EINEM FLUIDDYNAMISCHEN GLEITLAGER ODER FLUIDDYNAMISCHES GLEITLAGER
(EN) TURBOCHARGER WITH A FLUID-DYNAMIC SLIDE BEARING, OR FLUID-DYNAMIC SLIDE BEARING
(FR) TURBOCOMPRESSEUR À GAZ D’ÉCHAPPEMENT DOTÉ D’UN PALIER LISSE SELON LA DYNAMIQUE DES FLUIDES OU PALIER LISSE SELON LA DYNAMIQUE DES FLUIDES
Abstract
(DE)
Die Erfindung betrifft einen Abgasturbolader mit einem fluiddynamischen Gleitlager mit einem Rotor (10) und einem dem Rotor (10) zugeordneten Gegen-Lagerteil (50), wobei sich eine Rotor-Lagerfläche des Rotors (10) und eine Gegenfläche des Gegen-Lagerteils (50) gegenüberstehen, um ein fluiddynamisches Gleitlager zu bilden,wobei die Rotor-Lagerfläche und/oder die Gegenfläche bei einem Schnitt längs und durch die Rotationsachse (R) in Schnittansicht eine durchgehende Lagerkontur bildet/bilden, die aus wenigstens zwei Konturabschnitten (44.1 bis 44.3; 3.1 bis 53.3) gebildet ist/sind, um fluiddynamische Tragfähigkeiten sowohl in radialer als auch in axialer Richtung zu erzeugen,wobei die Lagerfläche des Rotors (10) von einem mit einer Rotorwelle (11) verbundenen Rotorteil (40) gebildet ist, welches auf der Rotorwelle (11) gehalten ist,und wobei das Rotorteil (40) im Bereich eines Stützabschnitts (14) der Rotorwelle (11) gegenüber der Rotorwelle (11) abgestützt ist. Um einen solchen Abgasturbolader mit einer kompakt bauenden und leistungsfähigen Lageranordnung mit einem fluiddynamischen Gleitlager bereitzustellen zu können, wobei gleichzeitig das fluiddynamische Gleitlager mit geringem Teileaufwand einfach zu montieren ist, ist es erfindungsgemäß vorgesehen, dasssich der Stützabschnitt (14) und zumindest einer der Konturabschnitte (53.1 bis 53.3) des Gegen-Lagerteils (50) in Richtung der Rotationsachse (R) zumindest bereichsweise überdecken.
(EN)
The invention relates to a turbocharger with a fluid-dynamic slide bearing, comprising a rotor (10) and a counter bearing part (50) which is paired with the rotor (10). A rotor-bearing surface of the rotor (10) and a counter surface of the counter bearing part (50) lie opposite each other in order to form a fluid-dynamic slide bearing. The rotor-bearing surface and/or the counter surface forms/form a continuous bearing contour at a cut along and through the rotational axis (R) in a sectional view, said bearing contour being made of at least two contour sections (44.1 to 44.3; 53.1 to 53.3), in order to generate fluid-dynamic load-bearing capacities both in the radial direction as well as in the axial direction. The bearing surface of the rotor (10) is made of a rotor part (40) which is connected to a rotor shaft (11) and which is held on the rotor shaft (11), wherein the rotor part (40) is supported relative to the rotor shaft (11) in the region of a support section (14) of the rotor shaft (11). The aim of the invention is to allow such a turbocharger to be provided with a high-capacity bearing assembly which has a compact construction and comprises a fluid-dynamic slide bearing, said fluid-dynamic slide bearing simultaneously being easy to assemble with a low cost of parts. According to the invention, this is achieved in that the support section (14) and at least one of the contour sections (53.1 to 53.3) of the counter bearing part (50) overlap in the direction of the rotational axis (R) at least in some regions.
(FR)
L’invention concerne un turbocompresseur à gaz d’échappement doté d’un palier lisse selon la dynamique des fluides, comportant un rotor (10) et un élément palier homologue (50), une surface portante du rotor (10) et une surface antagoniste de l’élément palier homologue (50) étant situées à l’opposé l’une de l’autre, de manière à former un palier lisse selon la dynamique des fluides, la surface portante du rotor et/ou la surface antagoniste formant dans une vue en coupe longitudinale passant par l’axe de rotation (R) un contour de palier qui se compose d’au moins deux parties de contour (44.1 à 44.3; 3.1 à 53.3), de manière à induire des capacités de portance selon la dynamique des fluides aussi bien dans la direction radiale que dans la direction axiale, la surface portante du rotor (10) étant formée par une partie rotor (40) reliée à un arbre de rotor (11) et maintenue sur l’arbre de rotor (11), et la partie rotor (40) étant soutenue dans la zone d’une partie d’appui (14) de l’arbre de rotor (11) par rapport à l’arbre de rotor (11). L’invention vise à fournir un turbocompresseur à gaz d’échappement de ce type présentant un ensemble palier compact et performant doté d’un palier lisse selon la dynamique des fluides, ledit palier lisse selon la dynamique des fluides devant simultanément être aisé à monter avec peu de pièces. A cet effet, la partie d’appui (14) et au moins une des parties de contour (53.1 à 53.3) de la partie palier homologue (50) se chevauchent au moins par endroits en direction de l’axe de rotation (R).
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