Electromagnetically operated valve, e.g. for motor vehicle automatic transmission

摘要

The EM valve (1) has a housing (10) with an inner chamber (11) containing a magnetic coil (13) and a displaceable, essentially plate or disc-shaped magnetic armature (25) which divides the chamber into two communicating sub-chambers (11a,11b) and is at least partially enclosed by damping fluid. A valve element (23) actuated by the magnetic armature is mounted in a valve closure element (15) attached to the housing. The connection (26,35) between the two sub-chambers can be varied at most partially with temperature It is a radial gap between the armature and the housing.