LP SPOOL POWER TAKE-OFF AND DEBRIS REMOVAL SYSTEM Russian patent published in 2023 - IPC F02C7/32 F02C9/16 F01D25/00 

FIELD: gas turbine engines.

SUBSTANCE: group of inventions relates to double-circuit and multi-shaft gas turbine engines, in particular, to two-shaft or three-shaft gas turbine engines for an aircraft, and concerns surge margin control at the level of compressors. A two-circuit gas turbine engine (1) with a flow path of the first circuit and a flow path of the second circuit is presented, which contains a low pressure spool containing a low pressure compressor (120) connected to a low pressure turbine (122) through a low pressure shaft (124), a high pressure spool, containing a high-pressure compressor (130), connected to a high-pressure turbine (132) through a high-pressure shaft (134), a low-pressure power take-off system (220), containing an electric generator (226) configured to take off power (W12) at the low pressure spool. At the same time, the gas turbine engine contains a debris removal system (500) located between two compressors (226, 236), and the low pressure power take-off system (220), in turn, is configured to take power (W12) on the low pressure shaft (124) at electrical generator resistive element (226) to avoid the risk of surge. Also presented is a power plant for an aircraft containing a gas turbine engine and an onboard computer.

EFFECT: invention allows limiting premature wear of the debris removal system.

10 cl, 4 dwg