Stable operation of the power unit is the foundation of the effective operation of any motor vehicle, and in the center of this system is located the power plant. speed-keeperIt is this assembly that is responsible for maintaining the optimal rotational frequency of the crankshaft when the load changes, preventing the engine from stalling when plowing dense soil or overheating when idling. Many owners of equipment face a situation where the motor begins to growl, spontaneously gain speed or become deaf, which often indicates the need for interference with the governor's work.
Unlike car engines, where complex electronics are responsible for fuel injection and ignition, in motorblocks, it is most often used. mechanical Understanding how it works is critical to self-diagnosing and troubleshooting, and in this article, we will take a closer look at the mechanical regulators, the steps in which they are set up, and the typical maintenance errors.
The principle of operation of the mechanical regulator (Governor)
The basis of the system is a centrifugal regulator, which is physically connected to the throttle of the carburetor through a system of thrusts and springs. As the load on the engine shaft increases (for example, mills entered heavy clay), the turns fall. The regulator's loads located inside the crankcase lose centrifugal force, and the spring shifts the throttle, increasing the supply of the fuel-air mixture.
The reverse process occurs when the load is reset: the turns grow, the loaders diverge under the action of centrifugal force, and the thrust covers the throttle. Reaction rate This system determines how smoothly the motor unit will react to changing operating conditions, and if the mechanism jams or stretches the spring, the engine will stop holding speed.
It is worth noting that in some modern models, such as Briggs & Stratton or Honda GXThe design may be slightly different from the loading, but the physics of the process remains the same. It's important to understand that the regulator does not create power, but only balances the available resources of the engine.
⚠️ Attention: Do not attempt to force the throttle to lock in the open position. This will lead to the engine running at maximum speed without the possibility of resetting, which is guaranteed to cause oil starvation and jamming of the piston group.
Why is the regulator called “Governor”?
