Back to results
US 2006/0138373 A1Published application
Solenoid valve device
AssigneeLuK Lamellen und Kupplungsbau Beteiligungs KG
InventorsMarco Grethel, Reinhard Stehr
Life of this patent
Estimating the term…
Abstract
A solenoid valve device, in particular a hydraulic valve device, has a solenoid element which is movable from a non-energized retracted state into an energized extended state, the working stroke of the solenoid element from its retracted state into its extended state including a constant magnetic force working stroke and an idle stroke in which the magnetic force is not constant, but decreases over the stroke.
Claims6
A solenoid valve device comprising:
- a solenoid element movable from a non-energized retracted state into an energized extended state, a working stroke of the solenoid element from a retracted state into an extended state including a constant magnetic force working stroke and a decreasing magnetic force idle stroke.
A method for operating a solenoid valve comprising:
- varying a stroke limitation of a solenoid element so that a working stroke of the solenoid element includes both a constant magnetic force working stroke and a decreasing magnetic force idle stroke.
Dependencies are inferred from the claim text.