SYSTEM FOR SUPPLYING PRESSURISED AIR INSTALLED IN AN AIRCRAFT TURBINE ENGINE INCLUDED SEALING MEANS Russian patent published in 2019 - IPC F02C9/18 F01D11/00 

FIELD: internal combustion engines.

SUBSTANCE: system (1) for supplying pressurised air installed in an aircraft turbine engine, configured to supply pressurisation air to a portion of the aircraft for using compressed air from pressurisation air collected from portion (12) for collecting compressed air, characterised in that it comprises collection port (30) formed on casing (12c) of compressed air collection portion (12), collection member (32) coupled to collection port (30), through port (38) of collection member (32) formed on casing (39) of compartment (ZC) of the turbine engine, wherein said casing (39) being subjected to small movements relative to casing (12c) of compressed air portion (12), wherein collection member (32) crossing through port (38) with a freedom of movement relative to the latter during said small movements, high-pressure space (33) crossed by collection member (32), located between casing (12c) of compressed air collection portion (12) and casing (39) of compartment (ZC) and including pressurised air at a pressure higher than that of the collected pressurisation air, wherein system (1) for supplying pressurised air including sealing means (2) located substantially between casing (12c) of compressed air collection portion (12) and casing (39) of compartment (ZC) in order to form a substantially sealed separation between high-pressure space (33) and free space (40) communicating with compartment (ZC) and provided around collection member (32), in order to prevent the entry of pressurised air from high-pressure space (33) into collection member (32) in the event of the latter breaking.

EFFECT: thanks to the invention it is possible to allow the pressurization air supply of a portion of an aircraft, such an aircraft fuel tank, by means of a pickup member of pressurized air, for example a turbomachine compressor stage, without risk of pressurizing air introduction at too high a temperature can cause particular risk of self-ignition of fuel even in the event of rupture of the collection member.

11 cl, 10 dwg