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Patent Searching and Data


Title:
VALVE TIMING VARIABLE DEVICE IN INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JP2002047906
Kind Code:
A
Abstract:

To facilitate working for forming both of a first oil passage 22 and a second oil passage 23 when hydraulic pressure from a hydraulic source is supplied to a hydraulic chamber in a hydraulic valve timing variable mechanism 8 via the first oil passage 22 and the second oil passage 23 by providing the hydraulic valve timing variable mechanism 8 for changing valve timing on a cam shaft 2.

The cam shaft 2 is made of a metallic pipe, the one end 2a is fitted into a bush body 10 provided with a journal part 11 of the cam shaft 2, and one oil passage of both the oil passages 22 and 23 is formed by recessing the one end part 2a in a groove shape extending in an axis direction.


Inventors:
KISHIMOTO KOICHI
Application Number:
JP2000231581A
Publication Date:
February 15, 2002
Filing Date:
July 31, 2000
Export Citation:
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Assignee:
DAIHATSU MOTOR CO LTD
International Classes:
F01L1/04; F01L1/34; F01L1/344; F16H53/02; (IPC1-7): F01L1/34; F01L1/04; F16H53/02
Attorney, Agent or Firm:
Akio Ishii (2 outside)