TANK POWER PLANT Russian patent published in 1999 - IPC

FIELD: mechanical engineering; fighting tracked vehicles. SUBSTANCE: fighting tracked vehicle has liquid cooling system and centrifugal fan for building cooling air flow. Fan drive reduction gear is furnished with synchronizers, and Rank pipes are installed on oil coolers. When oil temperature in engine lubrication system rises to critical value, higher gear of reduction gear is cut in automatically, and compressed air is delivered into Rank pipes. Flow of cooled air is directed from pipe holes onto frontal surface of oil coolers. When oil temperature drops below critical value, air delivery into Rank pipes is cut off, and when temperature drops to preset value, reduction gear automatically shifts to low gear. EFFECT: enhanced operation reliability at heat stresses. 4 cl, 4 dwg