A shroud for forced cooling and noise-absorbing in an internal combustion engine.

摘要

In an air cooled internal combustion engine (3) a cylinder (14) positioned above a crank case (9) and a cylinder head (15) positioned above the cylinder are formed with a large number of radiation fins (16) arranged at predetermined intervals. A cooling fan (19) is integrally mounted on the rightmost end of a crank shaft (10). A synthetic resin shroud (20) which covers both the air-cooled type internal combustion engine (3) and the cooling fan (19) comprises a cylinder-side shroud (21) which covers both the cooling fan (19) of the engine (3) and the cylinder (14), a head-side shroud (22) which covers the cylinder head (15), and a shroud outer plate (23) which covers the outside of the cylinder-side shroud (21). A noise-absorbing material (33) is interposed between the cylinder-side shroud (21) and the shroud outer plate (23) and it is engaged and fixed by engaging lugs formed on the outer surface of the shroud (21). <IMAGE>