| 摘要 |
PROBLEM TO BE SOLVED: To further reduce machining man-hours, weight, and to improve responsiveness by simplifying an oil passage. SOLUTION: A valve train 13 and a valve stopping mechanism 13 driven by hydraulic pressure and independently variably controllable, are provided in a cylinder head 2 provided with #1 cylinder, #2 cylinder, #3 cylinder and #4 cylinder having two or more intake/exhaust valves IV, EV. In the oil passage for the variable valve train supplying hydraulic fluid to the valve train 13 and valve stopping mechanism 21, a main oil passage 51 supplying hydraulic fluid to #3 cylinder and #4 cylinder independently variably controllable, is formed by single mechanical work, and a bolt 97 is provided in the main oil passage 51 to divide the oil passage 51. COPYRIGHT: (C)2007,JPO&INPIT
|
