SMALL-SIZE GAS TURBINE ENGINE Russian patent published in 2020 - IPC F01D15/10 F02C7/06 

FIELD: machine building.

SUBSTANCE: invention relates to aircraft engine building, namely to small-size gas turbine engines, and can be used, for example, as main or shunting engine of unmanned aerial vehicle, as well as power-plant plant for power generation for aircraft needs. Small-size gas turbine engine comprises front housing with support, in which on cantilever-mounted supports rotor with compressor and turbine, starter-generator, containing system of permanent magnets, combustion chamber, as well as cooling and lubrication system. In the front housing before the starter-generator there are holes which connect the inner cavity of the front housing with the section at the engine inlet, besides, the area of the flow part on this section is less than the area at the inlet of the compressor. Starter-generator is cantilever arranged on compressor and turbine opposite side relative to bearings. For arrangement of circulating lubrication system holes can be located in upper part of support, then in lower part of support there are holes for removal of lubricating liquid.

EFFECT: invention makes it possible to increase efficiency of system of lubrication and cooling of bearings of small-size gas-turbine engines, and also to reduce loads acting on bearings.

1 cl, 3 dwg