TURBOGENERATOR Russian patent published in 2022 - IPC F01D15/10 F02C7/00 

FIELD: power engineering.

SUBSTANCE: invention relates to the field of power engineering, mainly to small-sized turbogenerators for aviation, automotive purposes, as well as to autonomous power engineering in hard-to-reach places. A turbo generator includes a gas generator, an electric starter-generator consisting of a rotor equipped with a permanent magnet with a bandage closed from the outside, and a stator equipped with electric winding, an automatic control system, a fuel system, a liquid lubrication system. The rotor of the electric starter-generator is mounted on two rolling bearings cooled with liquid lubricant. A compressor wheel is detachably connected to an inlet flange of a turbine wheel by an output flange equipped with a labyrinth seal, and is cantilevered relatively to a rotor support of the electric starter-generator. An inner bearing cage of one of supports rests against the inlet flange of the compressor wheel. The turbine wheel and the rotor of the electric starter-generator are equipped with a slot connection. The rotor of the electric starter-generator, the bearing of the support, the compressor wheel and the turbine are connected by a detachable fastener located at a distance of no more than five diameters of the inner bearing cage from the inlet flange of the compressor wheel.

EFFECT: invention makes it possible to reduce the overall length, weight and number of parts, increase the reliability of the lubrication and cooling system of bearing supports, intensively cool the electric starter-generator and, using a multi-fuel pneumatic nozzle of a combustion chamber, maintain high combustion completeness of a fuel-air mixture.

6 cl, 2 dwg