Electromagnetically controlled operating device in particular for valves and electrohydraulic applications

An electromagnetically controlled operating device for controlling the passage of a fluid therethrough comprising:

• a housing made from a magnetic material, said housing having a first passage adapted to carry fluid therein, said first passage opening to one end of said operating device;
• a coil disposed within said housing for generating a magnetic field;
• a fixed guide disposed within said housing and having a second passage add a third passage extending therein for carrying fluid therethrough, said second passage and said third passage opening to said one end of said operating device adjacent to said first passage, said second passage having a longitudinal portion extending along a length of said fixed guide and a transverse portion extending transversely relative to the longitudinal portion, said third passage adapted to be connected to a discharge receptacle;
• a cup-shaped armature made from a magnetic material and having a conduit therein, said armature being movable in response to application of said magnetic field along said fixed guide so that said conduit can be positioned to selectively obstruct and permit communication between said first passage in said housing and said second passage within said fixed guide so as to control the travel of said fluid between said first and second passages,
• said movable cup-shaped armature having a tubular portion with a substantially closed radially outer surface, an open end for receiving said fixed guide, and a radially inwardly extending portion extending radially inwardly from an end of said tubular portion opposite from said open end.