Digital servo valve system
Digital servovalve and method of operation
Digital variable actuation system
Digitally controlled air-over-hydraulic actuator and method
Double-acting electropneumatic positioner
Drive for a steam servo valve
Drive of the fluid or electric type with a control
Dynamic characteristic compensating device for electrical hydrau
Electric and pneumatic feedback controlled positioner
Electric hydraulic controll device for a construction vehicle
Electrically compensated electrohydraulic servo system with posi
Electro Hydraulic servo valve
Electro-hydraulic actuator systems
Electro-hydraulic actuator with mechanical memory
Electro-hydraulic servo actuator with function for adjusting rig
Electrohydraulic control apparatus and method
Electrohydraulic motor and hydraulic driving method
Electrohydraulic servovalve with flow gain compensation
Electrohydraulic valve system
Electrohydraulic valve system