Title:
SUPPORT STRUCTURE OF ROLLING BEARING, AND ACTUATOR OF VARIABLE COMPRESSION RATIO MECHANISM OF INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JP2022100486
Kind Code:
A
Abstract:
To provide a support structure of a rolling bearing capable of suppressing increase of friction even at low temperature.SOLUTION: A support structure of a rolling bearing has an outer ring made of a material with a coefficient of linear expansion different from that of a fixing member and arranged in a recess part provided in the fixing member, an inner ring supporting a rotational shaft, and a rolling body arranged between the inner ring and the outer ring, where an annular portion forming an inner peripheral surface of the recess part of the fixing member supporting a rolling bearing arranged so that a radial preload can be generated by temperature change between the outer ring, the inner ring and the rolling element, has a thick part with a long radial distance from the inner peripheral surface, and a thin part with a short radial distance from the inner peripheral surface.SELECTED DRAWING: Figure 7
Inventors:
NAGAI KISHIRO
SUDA YOSHIHIRO
SUDA YOSHIHIRO
Application Number:
JP2020214491A
Publication Date:
July 06, 2022
Filing Date:
December 24, 2020
Export Citation:
Assignee:
HITACHI ASTEMO LTD
International Classes:
F02B77/00; F02B75/04; F02B75/32; F02D15/02; F16C19/06; F16C33/78; F16C35/067; F16H1/32
Attorney, Agent or Firm:
Patent Attorney Corporation Ayata Office