Patent ID: 7296405

Claim:
A flow pressure reducer and distribution system for compressed air injection engines operating on mono or dual energy with a dual or triple supply mode and comprising: a high-pressure compressed air tank; a buffer capacity positioned in line with said high-pressure compressed air tank and arranged to supply compressed air to at least one piston; a first valve assembly arranged to regulate a supply of compressed air in said buffer capacity, said first valve assembly comprising: a first valve; a first rocker arm rod arranged to be controlled by a cam positioned directly on a flange of a crankshaft; and a first rocker arm arranged to receive driving thrust from said first rocker arm rod and arranged to activate said first valve, wherein said first valve is pivotable around a first mobile pin that is movable between two ends of said first rocker arm to change a lever arm ratio of said first valve and thereby determine lifting of said first valve according to movement of said first rocker arm rod; and at least one additional valve assembly arranged to regulate a supply of compressed air to said at least one piston, said at least one additional valve assembly comprising: an additional valve; an additional rocker arm rod arranged to be moved by a pressure lever that is controlled by said cam; and an additional rocker arm arranged to receive driving thrust from said additional valve rocker arm rod and arranged to activate said additional valve, wherein said additional valve is pivotable around an additional mobile pin that is movable between two ends of said additional rocker arm to change a lever arm ratio of additional rocker arm and thereby determine lifting of said additional valve according to movement of said additional rocker arm rod.