SPACE POWER PLANT WITH MACHINE ENERGY CONVERSION Russian patent published in 2016 - IPC F02C6/02 

FIELD: machine building.

SUBSTANCE: invention relates to power industry. Part of pipeline of space power unit supplying working medium circuit into compressor of heat exchanger-cooler is made as subsonic ejector based on a venturi tube with circular channel and output of passive working body of ejector in zone of critical section of venturi tube. Annular channel with manifold at inlet is linked by a pipe via heat exchanger to cavity of electric generator, located at outlet of working medium for cooling rotor from cooling channel thereof - annular channel B between stator and rotor of electric generator. Liquid heat carrier supplied from outlet of channel of cooler-radiator is supplied and discharged to corresponding channel of heat exchanger through pipes. This ensures generation of differential pressure, providing for pumping of gaseous working medium of rotor with required flow rate through annular gap between rotor and stator due to local static pressure reduction of gaseous working medium circuit by increasing flow rate with subsequent recovery of static pressure at reduction of speed before entering compressor and cooling of heated in rotor cooling gaseous working medium prior to feeding it into zone of decreased static pressure.

EFFECT: invention reduces loss of useful power generating set with turbo-compressor machine power converter in a closed loop Brayton cycle by associated electric generator rotor cooling and thereby increasing its efficiency.

1 cl, 2 dwg