SYSTEM FOR AUTOMATIC CONTROL OF DIESEL ENGINE AT IDLING AND EMERGENCIES Russian patent published in 2007 - IPC F02D41/16 F02D41/22 

FIELD: mechanical engineering; diesel engine automatic control systems.

SUBSTANCE: proposed automatic control system of diesel engine running idle and in emergency situations has internal combustion engine with high-pressure fuel pump furnished with fuel feed control, crankshaft speed centrifugal governor and speed setter. System contains also speed setter position pickup, crankshaft speed pickup, electronic unit to control fuel supply at idling containing logic unit, first and second electronic switches, first and second comparators, speed upper and lower limit setters, stabilized supply unit, electric circuit idling switch and first electromagnetic actuator equipped with travel stop. System includes additionally unit to protect internal combustion engine from emergency oil pressure drop in lubricating system containing emergency pressure warning device and third electronic switch electrically connected with first electromagnetic actuator, and unit to protect internal combustion engine from emergency crankshaft speed rise containing shift recorder, setter and multivibrator of emergency speed level, fourth electronic switch and electromagnetic shutoff valve installed at fuel input in high pressure fuel pump, and switch of unit protecting internal combustion engine from emergency oil pressure drop in lubrication system.

EFFECT: enlarged functional capabilities of system and increased reliability.