Title:
CAM SHAFT BEARING STRUCTURE
Document Type and Number:
Japanese Patent JP2006118379
Kind Code:
A
Abstract:
To provide a cam shaft bearing structure reducing friction loss of the entire bearing structure.
The bearing structure of the invention comprises a camshaft 11 for driving an intake valve 3 provided at every cylinder 2 of an internal combustion engine 1 and bearing parts 13-16 rotatably supporting the camshaft 11. The bearing parts 13-16 are respectively arranged so that periods in which they receive reaction force from the intake valves 3 are not overlapped and supporting stiffness of the camshaft between the cylinders 2 adjacent to each other is smaller than supporting stiffness of the camshaft between the other cylinders.
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Inventors:
TAMURA SHINICHI
Application Number:
JP2004304619A
Publication Date:
May 11, 2006
Filing Date:
October 19, 2004
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
F01L1/04; F01L1/26
Attorney, Agent or Firm:
Koji Yamamoto
Tatsuo Egami
Satoshi Nakamura
Tatsuo Egami
Satoshi Nakamura