146374 ⎘
Circuits for servomotor systems; Pressure control characterised by the connections of the pressure control means in the circuit being connected to an output member and a directional control valve being connected to multiple output members
Pressurizing device
#2Downhole tractor comprising two or more hydrualic supply lines
#3Pressure-balance valve for balancing fluid feed to actuator cylinders of a servo-control for controlling rotor blades of a rotorcraft
#4Monitoring valve, rock drilling apparatus and a method for controlling at least two hydraulic actuators to such a monitoring valve and rock drilling apparatus