Two-stroke engine with selective control of the charge introduced in the combustion chamber
AssigneeInstitut Francais du Petrole
InventorsPierre Duret, Gaetan Monnier, Thierry Colliou
Life of this patent
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Abstract
A two-stroke engine which includes a cylinder in which a piston moves with a device being provided for allowing the feeding of a charge under pressure to the cylinder and at least two inlet ports in a well of the cylinder. The engine includes a device for selectively sealing a section of flow of the inlet port in accordance with at least one working parameter of the engine The device for selectively sealing may, for example, include a rotary plug placed opposite the inlet ports, with the plug including at least two through openings.
Claims12
A two-stroke engine of a cross-scavenging type comprising a cylinder in which a piston moves, a means for allowing a charge under pressure to be fed to said cylinder, at least two inlet ports in a wall of said cylinder, said at least two inlet ports cooperating with said means for feeding the charge, and means for selectively sealing in a differentiated manner sections of flow of said at least two inlet ports in dependence upon at least one working parameter of the engine.
Dependencies are inferred from the claim text.