METHOD FOR SUPPLYING FUEL FROM A TANK TO THE COMBUSTION CHAMBER OF A LIQUID ROCKET ENGINE OF A SPACECRAFT Russian patent published in 2018 - IPC B64G1/40 F02K1/00 

FIELD: astronautics.

SUBSTANCE: invention relates to space engineering. Method of supplying fuel from the tank to the combustion chamber of a liquid rocket engine (LRE) of a spacecraft (SC) includes displacement of fuel from a compressing cavity formed by an elastic partition of the tank, external mechanical pressure of gas on the surface of the elastic partition until the tank is fully emptied from the fuel. Mechanical pressure on the elastic shell is formed by changing the shape of the displacer made of a set of elements of metal alloys with a thermomechanical shape memory effect and a stable mechano-martensitic state of alloys with given temperatures for complete transition of martensite to austenite. Formation of displacement molds for external pressures on an elastic partition is carried out by successively heating the displacement elements.

EFFECT: technical result of invention is to reduce the mass of the propulsion system of the spacecraft and increase its survivability.

1 cl, 3 dwg