Title:
BEARING STRUCTURE OF SUPERCHARGER
Document Type and Number:
Japanese Patent JP2021113553
Kind Code:
A
Abstract:
To provide a bearing structure of a supercharger that can restrain transmission of self-excited vibration generated in a shaft while preventing deterioration caused by exhaust in a high-temperature state.SOLUTION: A bearing structure 20 of a supercharger 1 rotatably supports a turbine shaft 4 connecting a compressor 2 and a turbine 3, in a turbo housing 5. The bearing structure 20 comprises an inner ring part 22 fixed to the turbine shaft 4, an outer ring part 23 arranged outside the inner ring part 22, a plurality of balls 24 arranged between the inner ring part 22 and the outer ring part 23, and an annular elastic body 25 arranged between the outer ring part 23 and the turbo housing 5. The elastic body 25 is in direct contact with an outer peripheral surface 23a of the outer ring part 23. The outer ring part 23 comprises a heat dissipation structure for dissipating heat conducted from the turbine shaft 4.SELECTED DRAWING: Figure 2
Inventors:
SAKAMOTO TAKESHI
Application Number:
JP2020007724A
Publication Date:
August 05, 2021
Filing Date:
January 21, 2020
Export Citation:
Assignee:
TOYOTA IND CORP
International Classes:
F02B39/00; F02B39/14; F02B39/16; F16C19/06; F16C19/54; F16C27/00; F16C27/06; F16C33/58; F16C33/66; F16C37/00
Attorney, Agent or Firm:
Yoshiki Hasegawa
Yoshiki Kuroki
Takashi Mikami
Hiromitsu Nakayama
Yoshiki Kuroki
Takashi Mikami
Hiromitsu Nakayama