Electromagnetic control device
OwnerHeinz Leiberinventor
Life of this patent
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Abstract
The invention relates to an electromagnetic control device for actuating a valve of an internal combustion engine. A locking system is provided in order to maintain the valve in at least one of its end positions and in at least one intermediate position.
Claims20
Electromagnetic control device (1) to drive a valve (9) of a combustion engine with at least one electromagnet (5, 6) and one moveably mounted armature which without triggering the at least one electromagnet (5, 6) is held in an intermediate position by two opposingly directed spring forces (4, 7) and which by the interaction of the at least one electromagnet (5, 6) and the spring forces (4, 7) is moved to and fro between the poles of the at least one electromagnet (5, 6), where the armature movement is transmitted to the valve (9) and after reaching the end positions lying at least in the vicinity of the pole surfaces is held at times directly or indirectly, where this holding takes place at least in the end position (I) belonging to the closed valve by a holding system (11 to 13), characterised in that at least one intermediate position (II) is provided preferably in the vicinity of the end position allocated to the closed valve (position I) and that the same holding system (11 to 13) holds the armature also in this at least one intermediate position (II).
Dependencies are inferred from the claim text.