| 摘要 |
<p>An engine structure having a muffler cover includes a cylinder head (1), a crankcase cover (3), an oil tank (4), a muffler (5), an air filter (6) and a wind-guiding cover (7) mounted on an engine body (2). A fuel injector (11) is arranged on the cylinder head (1). The cylinder head (1) is connected to the air filter (6) by an intake pipe (12) and to the muffler (5) by an exhaust pipe (14). The oil tank (4), the muffler (5) and the air filter (6) are arranged around the cylinder head (1). A muffler cover (10) is fixed on the cylinder head (1) by a fastening bolt (8) and a fastening nut (13). The muffler cover (10) follows the profile of the exhaust pipe (14) and bents downwardly on its periphery. By transporting a cooling airflow to the muffler (5) for cooling the cylinder head (1), the exhaust pipe (14) and the muffler (5), the cooling performance of the engine is improved and the noise of the engine is reduced.</p> |
