Patent ID: 6779514
Filing Date: 2004-08-24
Classification: F02B,F02G,F02M,Y02T

Abstract:
A manually guided implement having an internal combustion engine that is disposed in a housing and to which a cooling air stream is guided via a cooling air fan, said implement also having a carburetor for supplying a fuel/air mixture to said internal combustion engine, said implement further comprising:a housing wall that is disposed between said internal combustion engine and said carburetor for guiding said cooling air stream; a preheating window disposed in said housing wall, wherein a partial stream of said cooling air stream, which has been heated-up by said internal combustion engine, is guided through said preheating window to outer surfaces of said carburetor as a preheating air stream and is not utilized as an air intake stream to the carburetor; and a switching element that is pivotably mounted on said housing wall, wherein said switching element serves for an opening and closing of said preheating window.