Patent ID: 6035818
Filing Date: 2000-03-14
Classification: F01L

Abstract:
A variable valve control apparatus for an internal combustion engine having an intake valve, an exhaust valve and a drive shaft, comprising:an axially-movable first driven shaft having a multi-dimensional cam for opening and closing at least one of the intake valve and the exhaust valve;a drive side rotor for rotating together with the drive shaft;a rotary member forming a part of said drive side rotor for rotatably supporting said first driven shaft and for allowing axial movement of said first driven shaft;a support member for rotatably supporting said rotary member and for inhibiting axial movement of said rotary member;a driven side rotor rotatably assembled to said drive side rotor and controlled hydraulically in a rotational phase relative to said drive side rotor for rotating together with said first driven shaft; anda hydraulically controlled piston housed inside said drive side rotor and for moving axially together with said first driven shaft.