Electrohydraulic control arrangement

An electrohydraulic control arrangement, comprising at least one terminal plate having an inlet port connected to a source of pressure fluid and an outlet port connected to a return conduit leading to a tank;

• a plurality of consumer plates fluid, said plates being arranged side by side in abutting relationship and being each formed with a plurality of bores axially aligned with the bores in the other plates and with a plurality of fluid channels therethrough axially aligned with the fluid channels in the other plates, said fluid channels being respectively adapted to communicate in said terminal plate with said inlet, respectively, said outlet port and in the consumer plate with said consumer ports, said fluid channels and said bores being respectively symmetrically arranged with respect to a plane of symmetry in said plates;
• and a plurality of tightening screws respectively extending through said aligned bores for holding said plates in tight abutting relationship, each of said plates being provided with a bore therethrough substantially normal to said plane of symmetry and including a spring-loaded control slide means axially movably guided in said bore between two end positions and a pair of closure screws at opposite ends of the bore and forming stops for limiting axial movement of the control slide means, said control slide means in each of said plates having a pair of opposite end faces and being formed with axial passage extending from one to the other of said end faces, the control slide means of each said consumer plate further having a transverse passage providing communication between the axial passage of the control slide means of the respective consumer plate and that fluid channel which communicates with said inlet port, the control slide means of the terminal plate having in the region of one end face thereof a transverse bore communicating with the axial passage of the control slide means of the terminal plate, and said terminal plate being formed with passage means forming in one end position of said control slide means of the terminal plate a connection between said inlet port and said transverse bore and in the other end position of said control slide means of the terminal plate a connection between said inlet port and a fluid channel connectable in each said consumer plate to the consumer outlet, and throttle means in said control slide of the terminal plate for establishing the connection prior to the establishing thereof by said transverse bore.