COMPOSITE MATERIAL INLET PLENUM AND GAS TURBINE ENGINE SYSTEM COMPRISING SAID PLENUM Russian patent published in 2018 - IPC F02C7/04 F01D25/28 

FIELD: internal combustion engines.

SUBSTANCE: air inlet plenum for a gas turbine engine comprises a hollow body and at least one removable portion. Hollow body has an air inlet aperture and an air outlet aperture arranged and configured for connection to the gas turbine engine. Removable portion is removable from the hollow body when the hollow body is connected to said gas turbine engine. Air inlet plenum is at least partly made of fibre-reinforced plastic into which the metal inserts are embedded. Said air outlet of the air inlet plenum has a connection flange formed by at least two flange portions, wherein at least one of said flange portions is removable from the hollow body and forms said at least one removable portion of the air inlet plenum.

EFFECT: providing reliable connection of the plenum with other structures, such as a gas turbine engine, with the possibility of a removable but reliable connection so that it is possible to quickly, safely and easily disconnect the engine for maintenance work.

19 cl, 10 dwg