1,Electrify to run the engine. 2, Special protector to protect solenoid. ... the instantaneous current is very big. The engine start for many times, the solenoid is easy ... automatic control (starting up/shutdown) of diesel engine. 2,Working principle:Through pull in/reset of ... controller, power factor regulator, fuel solenoid, charger for engine start battery, actuator, speed controller, load sharing panel ...