COOLING SYSTEM FOR HOT FLIGHT-TYPE ENGINE COMPONENTS AND FLIGHT-TYPE ENGINE EQUIPPED WITH SUCH COOLING SYSTEM Russian patent published in 2009 - IPC F02C7/12 

FIELD: engines and pumps.

SUBSTANCE: cooling system for hot components of flight-type engine arranged in a case wherein primary airstream is delivered to the engine, and secondary airstream surrounds the engine inside the case, houses at least one passage recovering the cool air from secondary airstream, and at least one heat exchanger provided on the passage. The heat exchanger contains the circulating hot air supplied from primary airstream to be cooled before to be delivered to the hot components to be cooled. At least one passage accommodates three consecutive areas: a supply canal system above at least one heat exchanger, an offtakes system lower than at least one heat exchanger and an intermediate casing. The supply canal system and the offtakes system are rigidly connected with the case. The intermediate casing is arranged between the supply canal system and the offtakes system wherein at least one heat exchanger is provided. The intermediate casing is rigidly connected with the engine and has a profile mainly trapeziform with its greater base facing the engine, and its smaller base facing the case.

EFFECT: invention aims at gain in overall performance of the heat exchanger and simplification of the engine maintenance.

13 cl, 3 dwg