| 摘要 |
PROBLEM TO BE SOLVED: To effectively cool an actuator while avoiding increase in number of parts without using any special electric motor for cooling the actuator, in a lift variable valve train of an internal combustion engine in which the actuator for driving a lift variable mechanism is connected with the lift variable mechanism for changing a lift amount of an intake valve disposed to a cylinder head. SOLUTION: An intake system 34 is connected to the cylinder head 26, and is provided with an intake passage facing a part of a casing 67 of the actuator 60. COPYRIGHT: (C)2007,JPO&INPIT
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