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Patent Searching and Data


Title:
COMPRESSION RATIO VARYING DEVICE OF INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JP2005054619
Kind Code:
A
Abstract:

To provide a compression ratio varying device of an internal combustion engine capable of securely switching a compression ratio without rotating a piston outer part.

This compression ratio varying device comprises a piston inner part 5a connected to a connecting rod 7, the piston outer part 5b fitted to the outer periphery of the piston inner part 5a slidably only in the axial direction, a restricting means 18 fixedly installed a head 5bh so as to axially oppose it with the piston inner part 5a, between a first cam mechanism 151 interposed between the piston inner part 5a and the head 5bh and controlling a distance S1 in a first axial direction between the piston inner part 5a and the head 5bh, and a second cam mechanism 152 interposed between the piston inner part 5a and the restricting means 18 and controlling a distance S2 between the piston inner part 5a and the restricting means 18.


Inventors:
HIRANO MAKOTO
Application Number:
JP2003000284427
Publication Date:
March 03, 2005
Filing Date:
July 31, 2003
Export Citation:
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Assignee:
HONDA MOTOR CO LTD
International Classes:
F02D15/02; F02B75/04; (IPC1-7): F02D15/02
Attorney, Agent or Firm:
落合 健
仁木 一明