The development trend of aero-engines control system is digital. Instead of the traditional mechanical hydraulic control system, the full authority digital electronic control system will become the main aero-engines control system because of its huge advantages. 航空发动机控制系统正朝着数字化的方向发展,全权限数字式电子控制系统以其巨大的优点渐渐取代了原有的机械液压式控制系统,将成为主流的航空推进控制系统。
In China, Digital electro-hydraulic ( DEH ) and Mechanical hydraulic control ( MHC ) exist together in primary frequency regulation loop in power system, so the DEH systems with high sensitivity has been placed dead bands as the same as MHC system. 发电机组的一次调频控制回路中由于数字电液调节系统与机械液压调节系统的并存,使得本应发挥高灵敏度作用的DEH调节系统中设置了和机械液压机组相同的调频死区。
Structure and Application of the Centralizer with Its Diameter Being Changed by Mechanical hydraulic Control 机液控制可变径扶正器的结构及应用研究
There are two kinds of steering systems : mechanical and hydraulic control. 转向系统有机械式和液压控制式。
According to the nitrogen inflating hydraulic impactor principle of work, establishes a new type of hydraulic impactor control project base on mechanical electrical hydraulic control system. 根据氮爆式液压冲击器的工作原理,建立了基于机电液控制的新型液压冲击器控制方案。