Institut Francais Du Pe'trole

Jean-Luc Blanchard

Pierre Duret

Jean-Pierre Maissant

A method and device for introducing carburetted mixture under pressure into a first cylinder of an internal combustion engine comprising at least one other cylinder having a crankcase pump. The device for introducing carburetted mixture comprises a connecting duct between the crankcase and the first cylinder and an angular non zero shift exists between the cycle of each of the cylinders.

Device and method for introducing a carburetted mixture under presssure

A method and device for introducing a carburetted mixture into a first cylinder of an internal combustion engine under pressure, this engine comprising at least one other cylinder with a pump crankcase, further comprising a connecting duct between the crankcase and the first cylinder, with an angular non zero shift between the cycle of each of the cylinders, and at least one of the gas transfer ports of said other cylinder is positioned so that a back-flow occurs therein during a part of the cycle.

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Jean-Luc Blanchard