How does an oil operated oil relay governor function?

An oil operated oil relay governor functions by employing a shaft-driven oil pump that replaces traditional flyballs. In this system, the governor uses oil pressure to regulate the speed of the boiler or engine. When the speed varies from the desired setting, the change in centrifugal force will alter the position of the pump in accordance with the speed fluctuations.

This design allows for precise control over the mechanical components without the need for mechanical weights, as found in other governor types. The oil pump responds quickly to changes in load and speed, making it highly effective for maintaining steady operation. It also benefits from the lubrication properties of the oil, which enhances the longevity and reliability of the governor.

While mechanical weights are a component in other types of governors, they are not utilized in the operation of an oil relay governor. A hydraulic pump system may be part of other complex systems but is not the defining feature of how this specific governor operates. Similarly, controlling pressure with gas does not align with the function of this governor, as the operation relies solely on the dynamics of oil pressure and mechanical movement.