| 摘要 |
PROBLEM TO BE SOLVED: To provide cooling structure of a cylinder head, capable of favorably cooling the circumference of an exhaust port. SOLUTION: On an exhaust port side of a cylinder head 30 used for an internal combustion engine 10, a first water jacket 50 is provided to extend from one end side to the other end side in a cylinder row direction. A cooling water inlet port 57 leading cooling water into the first water jacket 50 is disposed on one end side in the cylinder row direction, and one side in a forming region which is divided by a straight line L1 connecting the centers of valve stems 36a of a plurality of exhaust valves 36 positioned inside the forming region of the first water jacket 50 of the cylinder head 30. Further, a cooling water discharge port 58 discharging the cooling water from the first water jacket 50 is disposed on the other end side in the cylinder row direction, and on the other side in the forming region divided by the straight line L1. COPYRIGHT: (C)2011,JPO&INPIT |
