Thrust bearing

JP2025091614APending Publication Date: 2025-06-19TOYOTA JIDOSHA KK
View PDF 3 Cites 0 Cited by

Patent Information

Application Number
JP2023206955
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-12-07
Publication Date
2025-06-19

AI Technical Summary

Technical Problem

The load capacity of existing foil type laminated fluid thrust bearings decreases due to increased temperature of the fluid film caused by viscous heating, especially at high relative speeds between the thrust bearing and the rotating member.

Method used

The thrust bearing includes an upper foil portion with a bearing surface facing a rotating member and one or more lower foil portions that elastically support the upper foil. The upper foil portion is divided into multiple parts, and the lower foil portions are configured to provide appropriate rigidity and damping, including both-end supported beam-like structures, to maintain the flatness of the bearing surface and prevent rigidity differences that could reduce load capacity.

Benefits of technology

This configuration effectively suppresses the decrease in load capacity by maintaining the flatness of the bearing surface and preventing rigidity differences, even at high speeds, thereby ensuring stable operation of the thrust bearing.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 2025091614000001_ABST
    Figure 2025091614000001_ABST
Patent Text Reader

Abstract

To suppress decrease in load capacity of a thrust bearing.SOLUTION: A thrust bearing includes: an upper foil part having a bearing surface opposite to a rotary member that is rotatable about a rotation axis; and a lower foil part elastically supporting the upper foil part. The upper foil part is divided into a plurality of parts.SELECTED DRAWING: Figure 1
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Thrust bearing

    JP1978076247A

  • Passive thermal management of foil bearings

    US9062712B1

  • Compliant foil thrust bearing

    US6702463B1