Patent ID: 8074623
Filing Date: 2011-12-13
Classification: F02D

Abstract:
1. Method for adjusting an air-fuel ratio of an internal combustion engine, in a fuel supply section, the fuel supply section comprising a control unit for adjusting the air-fuel ratio of the engine, the engine having an engine speed and an engine throttle ranging from zero throttle to full throttle, the method comprising the steps of: a) measuring the engine speed of the engine; b) comparing the engine speed to a first engine speed value; c) adjusting the air-fuel ratio if the engine speed is lower than the first engine speed value, wherein the engine is crankcase scavenged, such that at least a part of the air needed for the engine is crankcase scavenged; and d) repeating the above elements a) to c) until the engine speed is either greater than or equal to the first engine speed value.