THREE-WAY DIRECT-ACTING ELECTROMAGNETIC DISTRIBUTING VALVE Russian patent published in 1994 - IPC

FIELD: pipeline valves and fittings. SUBSTANCE: housing has channels to supply medium, deliver medium to drive and drain medium, two seats, two shutoff members with rod in between, pull-back spring and electromagnet with armature. Rod is rigidly secured in one of shutoff members. Other shutoff member is hollow and is provided with central hole in wall pointed to first shutoff member through which free end of rod is passed. Placed in shutoff member space is washer pressed to free end of rod by spring. Stop is made at side opposite to rod. Stop is arranged at distance from washer less than full stroke of electromagnet armature. EFFECT: enlarged operating capabilities. 2 dwg