To enhance the durability of a selecting mechanism for selecting between a both valve variable state and a single valve variable state in a variable valve gear.
This variable valve gear comprises a valve mechanism capable of selecting between the both valve variable state in which the valve opening amounts of both a first valve and a second valve of the same type of each cylinder of an internal combustion engine and the single valve variable state in which the valve opening amount of the first valve is variable and the valve opening amount of the second valve is fixed. When the valve mechanism is brought in the single valve variable state and the internal combustion engine is stopped, the changeover from the single valve variable state to the both valve variable state is suppressed. Consequently, the frequency of the selecting operation between the both valve variable state and the single valve variable state can be reduced.
EZAKI SHUICHI
Mamoru Takada
Hidekazu Onishi
Yasuo Koizumi