| 摘要 |
PURPOSE: An oil separation structure is provided to lengthen the useful life of air cleaner by preventing oil from being discharged together with blow-by gas so as to protect the air cleaner from being contaminated. CONSTITUTION: A combustion chamber(3) is arranged at the bottom surface of a cylinder head(2), and a suction valve seat and an exhaust valve seat(4) are arranged within the combustion chamber. A cam chamber(5) is arranged at the upper surface of the cylinder head, and a timing chain chamber(6) is arranged at the side of the cylinder head. Suction/exhaust valve for opening/shutting off the suction/exhaust valve seats are installed at both sides of the cylinder head. A cam shaft(7) which is connected to a crank shaft through a chain, is installed in the cam chamber, and a cam shaft holder(8) is coupled to the cylinder head, thus arranging a locker arm shaft(9). A discharge port(12) is installed at the top surface of a cylinder head cover(11) so as to fed an air cleaner with blow-by gas. When the cam shaft holder(8) is coupled to the cylinder head via a bolt(13), an oil separation member(14) is mounted onto the cam shaft holder with a gap between the side surface of the cylinder head cover and the oil separation member.
|
