Patent ID: 6184767
Filing Date: 2001-02-06
Classification: F01L

Abstract:
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.