What mechanism is used to control the engine speed while pumping?

The governor mechanism is crucial for controlling engine speed while pumping because it automatically adjusts the fuel supply to the engine based on the load and desired RPM. When the demand for water increases, the governor senses this change and increases the fuel delivery to maintain the engine’s speed. This automatic regulation ensures that the engine operates efficiently under varying conditions, preventing stalling or over-revving, which can happen if the engine speed is not properly managed.

In firefighting applications, maintaining consistent pump pressure and flow is vital for effective fire suppression, making the governor mechanism an essential component of the pumping system. By actively responding to changes in demand, it enhances operational effectiveness and safety during fire rescue operations.