Patent ID: 9556968
Date: 2017-01-31
CPC Classifications: F16K,H01F

Claim:
1. An electromagnetic actuator for actuation of a pressure control fluid valve in a vehicle transmission, comprising: a solenoid coil; an armature magnetically moved by the solenoid coil in an armature area, the armature comprising a first tapering at a first end thereof, and a second tapering at an opposite second end thereof; a magnetic yoke having a first dipping stage into which the first tapering moves upon a shifting of the armature in an actuation direction, and a second dipping stage into which the second tapering moves upon a shifting of the armature in the actuation direction, the magnetic yoke having a continuous magnetic path that includes the first dipping stage and the second dipping stage; the first dipping stage extending from the solenoid coil into the armature area and operating with the first tapering upon supply of power to the solenoid coil to contribute to an actuating force of the electromagnetic actuator; the second dipping stage extending from the solenoid coil into the armature area and operating with the second tapering upon supply of power to the solenoid coil to contribute to the actuating force of the electromagnetic actuator; and the armature having a maximum external radial dimension D