Electrohydraulic servo valve

摘要

The electrohydraulic servo valve has connected one behind the other an electromechanical transducer 1 and a hydraulic intensifier 2, the first intensifier stage 3 of which is hydraulically connected to the end control chambers 8, 9 of a control spool 10 of a second intensifier stage. In the body 24 of the control spool 10, a bore 25 is made on the side of one of the end chambers 9. The bore 25 forms a common control chamber 26 with this chamber 9. The position indicator 18 of the control spool 10 is accommodated in the chamber 26. The sensor element of the indicator 18, in practical application an armature 22, is rigidly connected to the control spool 10. <IMAGE>