Title:
CRANK SHAFT SUPPORTING STRUCTURE
Document Type and Number:
Japanese Patent JP2009185905
Kind Code:
A
Abstract:
To provide a crank shaft supporting structure enabling reduction in the peak of a thrust load when a crank arm is elastically deformed.
In the supporting structure, a thrust bearing 10 for receiving a thrust load F2 of a crank shaft 1 is arranged on a bearing 6 which rotatably supports a journal 2 of the crank shaft 1. On the side of a back face 10b of the thrust bearing 10, an oil reservoir 12 is formed as a damping means. When the crank arm 4 is momentarily elastically deformed to be forcibly broadened by a load F1 during combustion to generate the thrust load F2, the crank shaft 1 contacts with the thrust bearing 10 to reduce the peak of the thrust load F2 with oil in the oil reservoir 12 on the side of the back face 10b.
Inventors:
MIYAZONO YUYA
Application Number:
JP2008026485A
Publication Date:
August 20, 2009
Filing Date:
February 06, 2008
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
F16C9/02; F01M1/06; F02F1/20
Attorney, Agent or Firm:
Koji Yamamoto
Tatsuo Egami
Satoshi Nakamura
Tatsuo Egami
Satoshi Nakamura