Two-speed governor introduction
The two-speed governor operates at two specified speeds, which keeps the diesel engine running at low speeds and limits the maximum engine speed. In all intermediate speed ranges, the driver directly controls the oil supply rod and the lever to control. It is suitable for use in automotive diesel engines under normal conditions. Diesel trucks have good operating conditions, flat roads, wide visibility, and good predictability for ramps and obstacles. They only need to use two-speed governor to control the idle speed of the diesel engine, prevent it from being randomly turned off, and limit the speeding of the diesel engine. In other conditions, the driver directly manipulates the accelerator pedal and controls the speed of the diesel engine, thus eliminating the reaction process and time of the governor, and making the control of the diesel engine speed more timely.
The two-speed governor consists of high-speed springs, idle speed springs, flying blocks, two-arm levers, speed-adjusting levers, and eccentric shafts. The governor is located at the rear end of the fuel injection pump. Two support rods with double-start threads are mounted vertically and symmetrically on the sleeve at the camshaft end. The flying block is set on the support rod, and the high-speed spring and the idle speed spring are mounted therein, and the outer ends thereof are supported on the same spring seat, and the inner ends are respectively supported by the inner support seat and the bottom of the flying block. The inner spring seat is loosely sleeved on the support rod and abuts against the shoulder. The idle speed spring is short, less elastic, and slightly preloaded during installation.