Variable combustion chamber geometry for internal combustion engine has collection that encloses gutter having canal forming shape

摘要

A piston (3) is reciprocally movable within a cylinder (2) having a gas inlet channel and a gas outlet channel. A gutter between an inlet (12) and an outlet (11) of a combustion chamber has a canal forming shape enclosed by a collection. The canal forming shape may be cylindrical or tub-shaped.