Japan, Feb. 24 -- NTN CORP has got intellectual property rights for 'FOIL BEARING.' Other related details are as follows:
Application Number: JP,2022-016033
Category (FI): F16C27/02@A
Stage: PROBLEM TO BE SOLVED: To provide a foil bearing capable of increasing a load by forming floating gaps at three places near a tip end of a top foil portion, near an arc portion at an inner diameter end, and an arc portion of an outer diameter end.SOLUTION: A foil bearing is formed with a bearing surface by aligning a plurality of leaves 22 in a circumferential direction. The leaf 22 has a top foil portion 22a forming the bearing surface, and an inner diameter end and an outer diameter end of the leaf 22 are arc portions. By regulating a ratio between diameter dimensions D2 of an arc portion 22e at the inner dimeter end of the leaf and diameter dimensions D1 of an arc portion 22d at the outer dimeter end of the leaf 22, and a ratio between a center angle B of the arc portion at the inner diameter end and a center angle A of the arc portion at the outer diameter portion, floating gaps are formed at three places near a tip end of the top foil portion 22a, near the arc portion 22e at the inner diameter end, and near the arc portion 22d at the outer diameter end.SELECTED DRAWING: Figure 5 (Grant)
Filing Date: Feb. 4, 2022
Publication Date: Aug. 17, 2023
The original document can be viewed at: https://www.j-platpat.inpit.go.jp/p0100
Disclaimer: Curated by HT Syndication.
