Positive-displacement hydraulic motor
Power stage servo valve for a seismic vibrator
Power transmission
Remotely operated fluid power control system for automotive vehi
Rotary digital electrohydraulic actuator
Sequencing valve mechanism
Servovalve flow linearization circuit
Shaking machine
Springless impactor
Vehicle climate control apparatus
Vibration generator with a control valve in an inertial body con
Vibration motor
Vibratory drive mechanism