Electromagnetically operating setting device
AssigneeFEV Motorentechnik GmbH
InventorsPeter Kreuter, Armin Zoschke
Life of this patent
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Abstract
To adjust the stroke of a control element actuated electromagnetically by means of a spring-mass oscillating system for displacement engines and to enable a freer arrangement of the electromagnetic setting device in the housing, in particular in a cylinder head of a displacement engine, the movement of the setting device is transferred to the control element, in particular one or more lift valves or flat slide valves, by means of a mechanical or hydraulic transmission system whose transformation ratio varies. Furthermore, devices are provided to adjust with precision the equilibrium position of the oscillating system. The electromagnetic setting device can also be combined with an end position attenuator and with a hydraulic compensating element.
Claims27
An electromagnetically operating setting device for at least one oscillatingly movable control element of a displacement engine, comprising:
- two switching electromagnets defining switching positions corresponding to opened and closed position of at least one control element;
- an armature located between said two electromagnets;
- a spring system for oscillating said armature between the two switching positions and said spring system having an equilibrium position between the two switching positions;
- a transmission system in communication with said armature and at least one control element, whereby said armature actuates at least one control element between opened and closed positions;
- and
- means for varying the transmission ratio of said transmission system.
Dependencies are inferred from the claim text.