Types of Governors

1. centrifugal governor
Its action depends on the change of speed and centrifugal effect produced by the mass, known as governor balls or fly balls, which rotate at a distance from the axis of rotation.
The action of governor depends on the centrifugal effect produced by the masses of the two balls. With the increase in speed the balls tend to rotate at a greater radius from the axis. This causes the sleeve to slide up on the spindle and this movement of the sleeve in communicated to the throttle through a bell crank Lever this closes the throttle valve to the required extent. When the speed decreases, the ball rotate at a smaller radius and the valveis open according to the requirement.
2. Inertia governor
The positions of the balls are affected by the forces is set up by an angular acceleration or the deceleration of the given a spindle in addition to centrifugal force is on the balls.
The balls are operated by the rate of change of speed in case of inertia Governors.
Hence the response of inertia governor is faster than that of centrifugal type GOVERNOR.

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