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AssigneeFev Forschungsgesellschaft fur Energietechnik und ver Brennungsmotoren mbH
InventorsFranz Pischinger, Peter Kreuter
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An arrangement for an electromagnetically operated actuator for a displacement-type engine having a spring-mass valve actuating oscillatory system which includes a valve having an armature thereon and a pair of electromagnets for maintaining the valve in at least first and second final operational positions of the maximum amplitude of vibration, the armature and at least one of the electromagnets comprising a contact dampener for the armature, at least one of the electromagnets being mounted in the housing by a hydraulic length-compensating element such that the distance between the valve seat and the pole area of the electromagnet is adjusted to correspond to the distance between the valve head and the pole area of the armature, so that the desired amount of dampening is consistently effected as the armature approaches the electromagnet and the valve approaches its seat.
An arrangement for an electromagnetically operated actuator for a displacement type engine having a spring-mass valve actuating oscillatory system which includes a valve operable relative to its valve seat within a housing, an armature connected to said valve, a pair of electromagnets on opposite sides of said armature for maintaining said valve in at least first and second final operational positions of the maximum amplitude of vibration, dampening means comprising said armature and at least one of said electromagnets, a hydraulic length-compensating element for mounting said one electromagnet on said housing for adjusting the distance between said valve seat and the pole area of said one electromagnet so that it corresponds to the distance between said valve head and the pole face of said armature, whereby substantially consistent dampening is effected as said armature approaches said one electromagnet and said valve head approaches said valve seat both with substantially the safe velocity.
An arrangement for an electromagnetically operated actuator for a displacement-type engine having a spring-mass valve actuating oscillatory system which includes a valve having an armature thereon and being operable relative to its valve seat within a housing, a pair of electromagnets on opposite sides of said armature for maintaining said valve in at least first and second final operational positions of the maximum amplitude of vibration, dampening means comprising said armature and at least one of said electromagnets, a hydraulic length-compensating element for connecting said armature to said valve for adjusting the distance between the head of said valve and the pole area of said armature to correspond to the distance between said valve seat and the pole area of said one electromagnet, whereby substantially consistent dampening is effected as said armature approaches said one electromagnet and said valve head approaches said valve seat both with substantially the same velocity.
Dependencies are inferred from the claim text.