SYSTEM FOR PRE-STARTING HEATING OF INTERNAL COMBUSTION ENGINE Russian patent published in 2003 - IPC

FIELD: mechanical engineering; cooling systems of internal combustion engines. SUBSTANCE: proposed system contains cooling liquid circulation circuit including tandem mounted first, second and third heat accumulators, and exhaust gas heat exchanger connected with engine exhaust pipe, pump and heat exchanger arranged in crankcase sump. Heat accumulators are of heat capacitive type with different temperatures of heat carrier and heat potentials, moreover, third heat accumulator is provided with heat exchanger with heat accumulating material-water under pressure. Each heat accumulator is installed for in-tun connection to liquid heat carrier circulation circuit by means of distributors, second and third heat accumulators being interconnected by flow. EFFECT: provision of accelerated heating of engine and reliable starting of mobile machines at below zero temperatures after long-time idling. 4 cl, 2 dwg