TWIN-CHAMBER LIQUID PROPELLANT ENGINE WITH CONTROLLED THRUST VECTOR Russian patent published in 2017 - IPC F02K9/66 

FIELD: engines and pumps.

SUBSTANCE: in two-chamber liquid propellant engine with controlled thrust vector comprising two chambers with the possibility of oscillating in their own stabilization planes in journals and spreader bars relative to oscillation axis passing through the chamber nozzle throat plane perpendicular to the longitudinal axis of the engine, and a turbo-pump unit shared by two chambers with turbine and producer gas disposal tube, located along the longitudinal axis of the engine, connected by the output using curved rigid tube, gas ducts sequential for each chamber, and at the nozzle throat area - flexible pipeline perpendicular to the oscillating axis, with a cavity of mixing head and heat exchangers mounted on producer gas pipelines for heating tank pressurizing gas, the flexible pipeline is oriented and mounted with producer gas input towards the chamber mixing head, and mounted with output part, gas duct connected to the mixing head, in the reversed direction from the mixing head, wherein the heat exchangers are mounted on the gas ducts at sections from the flexible pipeline to the chamber mixing head.

EFFECT: reduction of radial dimensions of a liquid-propellant engine; sealing of the engine layout in the radial direction and thereby reduction of the engine weight.

11 dwg