Patent ID: 6827331
Filing Date: 2004-12-07
Classification: F01L,H01F

Abstract:
Electromagnetic actuator, having at least one electromagnet (10) that acts on a correspondingly designed armature surface (20) of a moveable armature (22) in a first effective range (12) by way of at least one first conical and/or stepped pole face (18) using a magnetic field (16) generated by at least one coil (14), thereby forming a first magnetic flux (48), wherein said first magnetic flux (48) flows through a first working air gap (60), characterized in that, shortly before the moveable armature (22) reaches an end position, the electromagnet (10) acts on a corresponding armature surface (28) by way of at least a second pole face (26) in at least a second effective range (24), whereby a second magnetic flux (58) is formed, wherein said second magnetic flux (58) flows through a second working air gap (62), wherein a component (34) forming the second pole face (26) is formed as a single piece with a guide of the armature (22).