Two-stroke internal combustion engine with two opposed pistons per cylinder

Abstract

A two-stroke engine to be cooled by air includes a cap and base forming a cylinder chamber, at least two cylinders having a wet liner, wherein said cylinders are housed in the cylinder chamber, wherein in said wet liner at least an admission port and at least an exhaust port and at least one vacuum valve and injector are found, a pair of found pistons within each cylinder, the pistons being adapted to move between a first position where the pistons are spaced and a second position where the pistons are proximate, at least one admission mean per cylinder connected to said cap, which admits gas to the cylinder interior by means of the admission port, at least one exhaust mean per cylinder connected to said base, which allows gas exhaust from the cylinder interior by means of the exhaust port. The admission port may be alternated in position with said exhaust port in each one of the cylinders and said admission means may be alternated in position with said exhaust means in each one of the cylinders. The wet liner is cooled by the admission of fresh and clean gas to the cylinder interior.

Dependencies are inferred from the claim text.