| 摘要 |
PROBLEM TO BE SOLVED: To arrange an intake port and an injector at proper positions while simplifying a structure of a cylinder head of an internal combustion engine.SOLUTION: An intake locker arm and an exhaust locker arm are made to oscillate at their oscillation-side end parts by drive forces transmitted from an intake cam and an exhaust cam with a pivot-side end part as a center, and open and close an intake valve and an exhaust valve, respectively. The pivot-side end part of the intake locker arm is arranged at a side opposite to the exhaust valve with respect to the intake valve, the pivot-side end part of the exhaust locker arm is arranged between the intake valve and the exhaust valve, and a cam shaft side deck face including each cam axial line is formed so as to be parallel with a combustion-chamber side deck face orthogonal to a cylinder center line when viewing the cylinder head from cam axial line directions of an intake-side cam shaft and an exhaust-side cam shaft. In the cylinder head, an intake port is arranged below the intake locker arm, and the intake valve and the exhaust valve are arranged so that an intake valve axial line and an exhaust valve axial line are inclined at prescribed angles with respect to the cylinder center line. |
