Internal combustion engine variable compression ratio system

Details Internal combustion engine variable compression ratio system Internal combustion engine variable compression ratio system

2005-11-22

2005-11-22

McMahon, Marguerite (Department: 3747)

Internal-combustion engines

Adjustable combustion chamber

Piston in head adjusted

C123S0780BA

Reexamination Certificate

active

06966282

ABSTRACT:
An internal combustion engine variable compression ratio system. The system includes an inner piston connected to a connecting rod, an outer piston fitted around the outer periphery of the inner piston so that the outer piston can slide only in the axial direction, and a retaining ring fixedly provided on the outer piston so as to axially oppose a head portion with the inner piston interposed between the restricting means and the head portion. Also included are a first cam mechanism disposed between the inner piston and the head portion for controlling a first axial spacing therebetween, and a second cam mechanism disposed between the inner piston and the retaining ring for controlling a second axial spacing therebetween.

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patent: WO 02/103178 (2002-12-01), None
patent: WO 2004/013480 (2004-02-01), None

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