Piezoelectric ring bender servo valve assembly for aircraft flight control actuation and fuel control systems

Piezoelectric ring bender servo valve assembly for aircraft flight control actuation and fuel control systems

Electrohydraulic valve having dual-action right-angle pilot actuator

System and device for over-speed protection of a turbo-machine

System and device for over-speed protection of a turbo-machine

Dampened hydraulic pilot control arrangement for a spool valve

Print head with electromagnetic valve assembly

Hydraulic pressure feedback for servovalves

Servo valve

Hydraulic control arrangement for controlling a variable fluid volume flow

Piloted poppet valve

Variable turbo supercharger and method of driving the same

HYDRAULICALLY ACTUATED PNEUMATIC REGULATOR

System for controlling a plurality of turbomachine discharge valves

Hydraulic actuator with floating pistons

Actuator system

Actuator position control device using a fail freeze servo-valve

First-stage pilot valve

Valve assembly with dual actuation solenoids

Rotary-actuated electro-hydraulic valve

Flexible, hermetic pivot seal for torque motor

Latchable electrohydraulic servovalve

Methods and apparatus for splitting and directing a pressurized fluid jet within a servovalve

System for controlling a plurality of turbomachine discharge valves

Pressure-regulator servovalve with reduced leakage rate

Methods and apparatus for maintaining pressure gain in a servovalve assembly

Directional control valve