调速器（governor）是一种自动调节装置，它根据柴油机负荷的变化，自动增减喷油泵的供油量，使柴油机能够以稳定的转速运行。
调速器已经在工业直流电机调速、工业传送带调速、灯光照明调解、计算机电源散热、直流电扇等、得到广泛应用。
WOODWARD 9907-167Governor is an automatic regulating device, which automatically increases or decreases the oil supply of the fuel injection pump according to the change of diesel engine load, so that the diesel engine can run at a stable speed. The governor has been widely used in industrial DC motor speed regulation, industrial conveyor speed regulation, lighting regulation, computer power dissipation, DC fan, etc.
