Patent ID: 6016778
Filing Date: 2000-01-25
Classification: F01L,F16K,H01F

Abstract:
A magnet valve, comprising:a ferromagnetic coil body having a winding and defining a first terminal position and a second terminal position;an armature for driving a valve, said armature being displaceably disposed in said ferromagnetic coil body between said first terminal position and said second terminal position;a housing with a support;a spring braced between said armature and said support;a piezoelectric measuring instrument disposed between said spring and said support for detecting a position of said armature, said measuring instrument providing an output signal dependent on a spring force of said spring, the spring force being associated with a position of said armature, and wherein an actual speed of said armature is determined from the position of said armature and the actual speed of said armature is used to regulate the speed of said armature.