MULTI-FUEL LIQUID PROPULSION SYSTEM OPERATING ON SINGLE-COMPONENT PROPELLANTS Russian patent published in 2020 - IPC F02K9/68 

FIELD: machine building.

SUBSTANCE: invention relates to liquid-propellant rocket engines. Multifuel liquid rocket propulsion system includes expansion chamber 2 with nozzle 1, cylinder 3 with control gas equipped with heating element 27, negative pressure communication 29 pressure sensor connected by means of the discharge gas line 4, 5 to the tank of the first kind of the single-component fuel, which is connected by fuel line 10 with the first catalytic chamber - gas generator equipped with the catalyst for catalytic decomposition of the first one-component fuel equipped with the negative pressure feedback sensor 25 and articulated via pipe 18 with expansion chamber 2, as well as fuel line 20, articulated directly with expansion chamber. Simultaneously, plant is equipped with tank of second 9 one-component fuel of another type, connected by means of discharge gas line 4 with balloon 3 of control gas equipped with heating element 27, negative pressure feedback sensor 29 and connected fuel line 11 with second 15 catalytic chamber - gas generator equipped with catalyst for catalytic decomposition of second fuel equipped with negative pressure feedback sensor 26 connected via branch pipe 19 with expansion chamber 2, as well as fuel line 21 articulated directly with expansion chamber.

EFFECT: invention provides increase in value of maximum traction pulse and possibility of its flexible regulation and correlation, rational use of fuel and control gas, as well as increase in failure-free operation.

4 cl, 1 dwg