Woodward rotary actuators DYNA 8000 series are components of governor systems used to control the speed and power of reciprocating and gas turbine engines or steam and water turbines.
The DYNA hazardous area actuators have a Class I, Division 2, Group D UL listing, Hazardous applications that can often occur in the petrochemical industry.
The actuator consists of an electromagnet with an iron armature that rotates on the central shaft bearings and has a return spring that balances the magnetic force of the armature. When a DC current flows in the coil, the magnetic force moves the armature in the stator. This linear movement is converted into a rotary motion by means of a crank arm, which is part of the output shaft.
The all-electric, proportional actuators are compatible with all engines and can be mounted in any position on the engine.
The torque ranges of the 8000 series are:
DYNA 8000: 1.4 N • m with a setting range of 35 °
DYNA 8200: 4.1 N • m with an adjustment range of 45 °
DYNA 8400: 7.3 N • m with a setting range of 45 °
The electronic controller is the data processing unit of the controller module. It contains electronic components that process the magnetic encoder input signal that controls the motor at the desired speed / revolutions per minute set in the controller. Electronic settings are available on the controller so that the unit can be adjusted in use if necessary.