Isochronous Governor

An isochronous governor is a type of governor that maintains a constant speed of an engine, irrespective of the load variations. This governor is used in applications where a constant speed is required, such as in generators, turbines, and engines.

Types of Isochronous Governor

There are various types of isochronous governors, including:

1. Hartnell Governor
2. Wilson-Hartnell Governor
3. Hartung Governor
4. Pickering Governor
5. Proell Governor
6. Porter Governor
7. Governor with Inertia Ring

Among these governors, the Watt Governor cannot be isochronous because of its inherent design.

Watt Governor

The Watt Governor is a type of centrifugal governor that was developed by James Watt in the late 18th century. This governor is widely used in steam engines and other power plants to control the speed of the engine.

The Watt Governor consists of two balls connected to a vertical spindle by two arms. As the speed of the engine changes, the centrifugal force acting on the balls changes, causing the arms to move up or down. The movement of the arms is transmitted to the throttle valve, which adjusts the steam flow to the engine.

Why Watt Governor is Not Isochronous?

The Watt Governor cannot be isochronous because its design is based on the principle of proportional control. In other words, the speed of the engine is controlled by adjusting the steam flow in proportion to the speed of the engine.

As the load on the engine changes, the speed of the engine also changes, which causes the Watt Governor to adjust the steam flow to maintain the speed of the engine. However, this adjustment is not instantaneous, which means that there is always a lag between the change in load and the adjustment of the steam flow. This lag results in a variation in the speed of the engine, which means that the Watt Governor cannot be isochronous.

Conclusion

In conclusion, the Watt Governor cannot be isochronous because of its design, which is based on proportional control. While this governor is widely used in steam engines and other power plants, it is not suitable for applications where a constant speed is required. Other governors, such as the Hartnell Governor, Wilson-Hartnell Governor, and Hartung Governor, are better suited for isochronous applications.