Electromagnetic actuator for internal combustion engine valve, comprises single coil wound on laminated doubly opposed E shaped yoke and double conical laminated armature with twin bearings

摘要

A laminated yoke (1) is formed as a doubly opposed E shaped figure with a common top bar (3) which bears an electrical winding in two sections (5a,5b). A doubly conical armature (7) is located in a yoke space (6) and is attached to a valve (10) through guiding and connecting valve rods (8,9). There are bearings on either side of the armature which is directed towards a central position by helicoidal springs