Method for operating a two-stroke engine

摘要

The invention is directed to a method for operating a two-stroke engine in a portable handheld work apparatus. The engine includes a cylinder (12) and a combustion chamber (26) which is delimited by a reciprocating piston (14). The combustion chamber includes an outlet (28) discharging exhaust gases and an inlet (30) of a storage channel (34). The inlet (30) lies approximately opposite the outlet (28) and the other end of storage channel (34) opens via a controlled end (38) into the crankcase (18). Between its ends, the storage channel (34) is connected to a first fuel metering device (20) of a first fuel path; whereas, the crankcase (18) has a crankcase inlet (24) which is connected to a second fuel metering device (19) of a second fuel path. In the case of an acceleration, additional fuel is metered to one or both fuel paths via an acceleration unit (22). In order to ensure a powerful run-up of the engine in the case of acceleration, the acceleration device (22) pumps into both fuel paths for an acceleration of the engine.