OPERATION MODE AND DESIGN OF JET PROPULSION MOTOR (VERSIONS) Russian patent published in 2012 - IPC F02K9/48 F02K99/00 

FIELD: power industry.

SUBSTANCE: part of heat from on-board source of space vehicle is converted into effective capacity by implementation of closed thermodynamic cycle with delivery of heat from on-board source to working medium of closed cycle, receipt of effective capacity and heat removal to liquid cryogenic working medium of the motor, which is converted to steam and heated up. Working medium of the engine is heated up additionally at on-board heat source and then it is accelerated up to maximum speed due to delivery of effective capacity received in closed thermodynamic cycle. For the purpose of this principle implementation jet propulsion motor includes heat source thermally connected to at least two heat exchangers; output of one heat exchanger is included into closed circuit consisting of evaporator refrigerator and compressor connected in series to turbine and input to heat-exchanger while output of the other heat-exchanger is connected to electric accelerator of the motor, at that tank with liquid cryogenic working medium of the motor is connected in series with pump, evaporator refrigerator and input of the second heat-exchanger and turbine is connected to converting electric generator, which is electrically connected to electric accelerator for working medium of the motor. The second version for device includes jet propulsion motor consisting of the same elements except for converting electric generator and electric accelerator, but output of the second heat exchanger is switched to input of the second cooling compressor connected to closed-loop turbine and output of the second compressor is connected to input of gas-dynamic accelerator of the motor.

EFFECT: efficiency improvement for use of on-board heat source to increase propulsion power and density impulse of motor.

6 cl, 3 dwg