Electromagnetic actuator having a joint-supported resetting spring
AssigneeFEV Motorentechnik GmbH
InventorsMartin Pischinger, Thomas Esch, Markus Duesmann
Life of this patent
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Abstract
An electromagnetic actuator includes an electromagnet; and an armature movable toward the electromagnet by an electromagnetic force generated upon energization of the electromagnet. The armature is connectable to a setting member displaced as a function of armature motions. The electromagnetic actuator further has a resetting spring which opposes the electromagnetic force and which has a first end supported in a housing and a second end; and at least one jointed connecting arrangement interposed between the resetting spring and the armature for supporting the armature on the second end of the resetting spring.
Claims8
An electromagnetic actuator comprising:
- (a) a first electromagnet having a first pole face;
- (b) a second electromagnet having a second pole face;
- (c) means for supporting said first and second electromagnets;
- said first and second pole faces being oriented toward one another and defining a space therebetween;
- (d) an armature movably disposed in said space for executing a reciprocating motion between said first and second pole faces urged by electromagnetic forces produced upon energization of said first and second electromagnets;
- (e) first and second springs;
- (f) means for supporting and positioning said first and second springs to oppose motions of said armature caused by electromagnetic forces;
- and
- (g) a guide rod having
- (1) a first guide rod part firmly secured to said armature;
- (2) a second guide rod part being a component separate from, and unsecured to, said armature;
- (h) jointed connecting means for supporting said second guide rod part on said first spring;
- said first spring being arranged to urge, through said jointed connecting means, said second guide rod part into contact with said armature.
Dependencies are inferred from the claim text.