ELECTROMAGNETIC PRESSURE CONTROLLER Russian patent published in 1998 - IPC

FIELD: automatic control over pressure of liquid or gas, hydraulic and pneumatic automatic control systems as element converting input electric signal to pressure of liquid or gas across outlet of system controlling hydraulic and pneumatic actuators. SUBSTANCE: electromagnetic pressure controller includes body 1, radial inlet 2, discharge 3 and axial outlet 4 conduits, bushing 5 with radial inlet 6 and discharge 7 conduits, controlling element - piston 8 with axial conduit 9, pressure 10 and drain 11 holes each made in the form of two rows of holes with diameters D1, D2, D3, D4 with relations D1/D2= D4/D3=0.2-0.3, L1/D2=L2/D3=0.38-O.63, where L1,L2 are distances between centers of holes of rows of pressure and drain holes. EFFECT: improved controlling characteristics. 1 dwg