公开(公告)号：US20250154979A1

公开(公告)日：2025-05-15

申请号：US18833947

申请日：2023-03-24

Applicant: Hanon Systems

Inventor： Jun Hyuk Park ,  Chi Yong Park ,  Jong Sung Lee ,  Kyu Sung Choi

IPC: F16C17/02

Abstract: The present invention relates to an air foil journal bearing including a bump foil and a top foil, in which one end and the other end of the top foil based on a circumferential direction are disposed with a step difference in a radial direction, and one end of the top foil is disposed radially inward of the other end of the top foil on the assumption that a direction in which the top foil extends from one end to the other end is identical to a rotation direction of a rotor disposed inside the top foil and configured to rotate, such that an additional fluid dynamic pressure is generated in the bearing, and asynchronous vibration components, which affect noise, are suppressed during a high-speed operation, which may improve driving stability.

公开(公告)号：US20240426338A1

公开(公告)日：2024-12-26

申请号：US18703561

申请日：2022-11-04

Applicant: Hanon Systems

Inventor： Gunwoong Park ,  Hyun Chil Kim ,  Kyu Sung Choi ,  Jun Hyuk Park ,  Yong Ha Chae

IPC: F16C17/04

Abstract: The present invention relates to an air foil thrust bearing including a bump foil and a top foil stacked at a position corresponding to the bump foil to cover the bump foil, in which an outer diameter of the top foil is larger than an outer diameter of the bump foil in a radial direction, and the bump foil and the top foil are formed and disposed so that a portion where pressure of an air film between a thrust runner and the top foil is high when a rotor rotates is consistent with a region in which the bump foil exists, such that friction in an outermost peripheral region of the top foil based on the radial direction is reduced, durability is improved, the pressure of the air is relatively uniformly dispersed, and a load supporting force is improved.