Patent ID: 7325528

Claim:
A method of operating a single cylinder two-stroke engine, the two-stroke engine including: a cylinder; a piston mounted in said cylinder to undergo a reciprocating movement along a stroke path between top dead center and bottom dead center during the operation of said engine; said cylinder and said piston conjointly delimiting a combustion chamber; a crankcase connected to said cylinder; a crankshaft rotatably mounted in said crankcase; said piston being connected to said crankshaft for imparting rotational movement to said crankshaft; a device for metering fuel to said engine and a device for supplying air to said engine; an ignition unit for igniting an air/fuel mixture in said combustion chamber; and, a control unit controlling the metering of said fuel and the ignition of said mixture in said combustion chamber; the method comprising the step of: controlling said two-stroke engine in at least one operating state so as to cause the number of combustions to be less than the number of revolutions of the crankshaft in the same time interval; wherein the number of combustions is controlled pursuant to a pregiven pattern; and, wherein said pregiven pattern includes a stochastic component.