AVIATION GAS-TURBINE ENGINE WITH AT LEAST TWO CASES AND WITH POWER TAKEOFF Russian patent published in 2023 - IPC F02C7/32 F02C7/36 F01D25/16 

FIELD: aviation.

SUBSTANCE: aviation gas-turbine engine (10) contains at least low-pressure case (12a) and high-pressure case (12b), as well as power takeoff means (54) on the mentioned low-pressure case, which include first power takeoff shaft (54a), on a radial inner end of which first conical gear (54b) is installed, engaging with first conical wheel (54c) of angular transmission, rotated with the mentioned low-pressure case. At the same time, the gas-turbine engine additionally contains first annular support (76) of a bearing, located around the mentioned axis and rigidly connected to a stator. In this case, the mentioned first support of the bearing contains first essentially cylindrical section (76b), which is located coaxially with second essentially cylindrical section (54ca) of the mentioned wheel of angular transmission. At the same time, these first and second sections are guided, one inside the other, with support bearings (78, 80), and the mentioned wheel of angular transmission is rotated with the mentioned low-pressure case through annular damping part (86, 86’), which is made independent of the mentioned first support of the bearing.

EFFECT: invention allows for obtainment of compact engagement for power takeoff, independent of movements and case dimensions.

11 cl, 6 dwg