Title:
VARIABLE VALVE MECHANISM FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
WIPO Patent Application WO/2004/081351
Kind Code:
A1
Abstract:
An oscillating cam is oscillated by a rotating cam provided on a camshaft rotated by a crankshaft of an internal combustion engine. The oscillating cam has a rotating-cam contact portion that is in contact with the rotating cam to transmit drive force from the rotating cam to the oscillating cam. The rotating-cam contact portion is made movable so as to provide a contact portion varying mechanism for varying a relative distance between the rotating cam and the axis of the oscillating cam. The relative distance is variable by varying the amount of lift of each valve.
Inventors:
HATAMURA KOICHI (JP)
FUJITA HIDEO (JP)
FUJITA HIDEO (JP)
Application Number:
PCT/JP2004/003076
Publication Date:
September 23, 2004
Filing Date:
March 10, 2004
Export Citation:
Assignee:
YAMAHA MOTOR CO LTD (JP)
HATAMURA KOICHI (JP)
FUJITA HIDEO (JP)
HATAMURA KOICHI (JP)
FUJITA HIDEO (JP)
International Classes:
F01L1/08; F01L13/00; (IPC1-7): F01L13/00
Foreign References:
| JPH0693816A | 1994-04-05 | |||
| JPS634313U | 1988-01-12 | |||
| JPS63309707A | 1988-12-16 | |||
| JPH03271513A | 1991-12-03 |
Other References:
See also references of EP 1605142A4
None
None
Attorney, Agent or Firm:
Sano, Hiroshi (2-9 Irifune 1-chom, Chuo-ku Tokyo, JP)
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