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Centrifugal governors are used in many modern repeating watches to limit the speed of the striking train, so the repeater does not run too quickly. Another kind of centrifugal governor consists of a pair of masses on a spindle inside a cylinder, the masses or the cylinder being coated with pads, somewhat like a centrifugal clutch or a drum brake.
A governor, or speed limiter or controller, is a device used to measure and regulate the speed of a machine, such as an engine.. A classic example is the centrifugal governor, also known as the Watt or fly-ball governor on a reciprocating steam engine, which uses the effect of inertial force on rotating weights driven by the machine output shaft to regulate its speed by altering the input flow ...
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The centrifugal governor is an early proportional control mechanism. A control system manages, commands, directs, or regulates the behavior of other devices or systems using control loops . It can range from a single home heating controller using a thermostat controlling a domestic boiler to large industrial control systems which are used for ...
This is achieved by use of a constant-speed unit (CSU) or propeller governor, which automatically changes the propeller's blade pitch. Most engines produce their maximum power in a narrow speed band. The CSU allows the engine to operate in its most economical range of rotational speeds , regardless of whether the aircraft is taking off or cruising.
Droop speed control is a control mode used for AC electrical power generators, whereby the power output of a generator reduces as the line frequency increases. It is commonly used as the speed control mode of the governor of a prime mover driving a synchronous generator connected to an electrical grid.
"Balls to the Wall" The phrase originates from the steam centrifugal governor. Since the spinning device could be dangerous, it was enclosed in a cylinder whose inside diameter matched the full speed of the device. When a steam engine, which used this governor, was pushed to full throttle it was said to be "balls to the wall."
Centrifugal (a key concept in rotating systems) may refer to: Centrifugal casting (industrial) , Centrifugal casting (silversmithing) , and Spin casting (centrifugal rubber mold casting), forms of centrifigual casting