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1. WO2020195488 - THRUST FOIL BEARING, FOIL BEARING UNIT, TURBO MACHINE, AND FOIL

Publication Number WO/2020/195488
Publication Date 01.10.2020
International Application No. PCT/JP2020/007769
International Filing Date 26.02.2020
IPC
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
F04D 29/057 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
DNON-POSITIVE-DISPLACEMENT PUMPS
29Details, component parts, or accessories
05Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
056Bearings
057hydrostatic; hydrodynamic
Applicants
  • NTN株式会社 NTN CORPORATION [JP]/[JP]
Inventors
  • 原田 和慶 HARADA Kazuyoshi
  • 吉野 真人 YOSHINO Masato
  • 岡本 実樹 OKAMOTO Miki
Agents
  • 城村 邦彦 SHIROMURA Kunihiko
  • 熊野 剛 KUMANO Tsuyoshi
  • 野口 祐輔 NOGUCHI Yusuke
Priority Data
2019-05905326.03.2019JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) THRUST FOIL BEARING, FOIL BEARING UNIT, TURBO MACHINE, AND FOIL
(FR) PALIER À FEUILLES DE POUSSÉE, UNITÉ DE SUPPORT DE FEUILLE, TURBOMACHINE ET FEUILLE
(JA) スラストフォイル軸受、フォイル軸受ユニット、ターボ機械及びフォイル
Abstract
(EN)
Each foil 22 has: a top foil section 22a that has a bearing surface S; and a back foil section 22b that is provided to the upstream side of the top foil section 22a and is disposed so as to overlap the top foil section 22a of an adjacent foil 22 from behind (opposite to the bearing surface S). An angle E defined by the inner-diameter edge of an overlapping area P of two adjacent foils 22 is smaller than an angle D defined by the outer-diameter edge of the overlapping area P.
(FR)
Chaque feuille 22 comprend : une section de feuille supérieure 22a qui a une surface de support S ; et une section de feuille arrière 22b qui est disposée sur le côté amont de la section de feuille supérieure 22a et est disposée de façon à chevaucher la section de feuille supérieure 22a d'une feuille adjacente 22 depuis l'arrière (à l'opposé de la surface de support S). Un angle E défini par le bord de diamètre interne d'une zone de chevauchement P de deux feuilles adjacentes 22 est inférieur à un angle D défini par le bord de diamètre externe de la zone de chevauchement P.
(JA)
各フォイル22は、軸受面Sを有するトップフォイル部22aと、トップフォイル部22aの上流側に設けられ、隣接するフォイル22のトップフォイル部22aの背後(軸受面Sと反対側)に重ねて配されたバックフォイル部22bとを有する。隣接するフォイル22同士の重合部Pの内径端が占める角度Eは、重合部Pの外径端が占める角度Dよりも小さい。
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