1. Field of the Invention
The present invention relates to an auxiliary arrangement structure in an internal combustion engine, in which an auxiliary is disposed utilizing a space formed in the vicinity of a cylinder head of the internal combustion engine.
2. Description of the Related Art
There is an auxiliary arrangement structure known from Japanese Patent Application Laid-open No. 11-44206, in which an actuator for actuating a variable valve-operating mechanism for changing a valve lift amount and a valve lift timing of an engine valve of an internal combustion engine is attached to an upper surface or a side surface of a head cover covering a valve-operating chamber which houses the variable valve-operating mechanism.
The auxiliary arrangement structure described in Japanese Patent Application Laid-open No. 11-44206 has a problem that the actuator for actuating the variable valve-operating mechanism overhangs from the upper surface or the side surface of the head cover, resulting in an increase in size of the internal combustion engine including the actuator.
USPTO Backgrounds
USPTO Backgrounds