ELECTRO HYDRAULIC CONTROL DEVICE FOR WATER TURBINES

An electrohydraulic governor for water turbines with electric controller controls the main valve for the turbine's guide-vane ring servomotor via a control transmission and a control head by means of electric feedback from the said servomotor. The governor has a mechanical feedback arrangement which is connected when the electric controller is out of action.

申请(专利)号: USD3680972
申请日期: 1969年12月11日
公开(公告)日: 1972年8月1日
公开(公告)号: US3680972(A)
主分类号: F03B15/16,F,F03,F03B,F03B15
分类号: F03B15/16,F03B15/18,(IPC1-7):F01B25/06,F,(,F03,(IP,F03B,(IPC,F03B15,(IPC1-7):F01B25
申请(专利权)人: AB. NOHAB
发明(设计)人: CARL-ERIK RINGHOLM