Woodward-make PSG governors are pressure-compensated, speed-droop, or isochronous governors that control the speed of small diesel, gas and gasoline engines, or small steam or industrial gas turbines. The governor is used to control engines or turbines that drive alternators, DC generators, pumps or compressors.

Woodward-make TG13 and TG17 governors operate with speed droop for stability of control and allow the engine to run unattended. An internal oil pump, driven by the governors’ drive shaft, transports oil from the self-contained sump. Internal pressure is maintained by a relief valve accumulator system.