FIELD: low-thrust rocket engines; system delivering fuel components. SUBSTANCE: system has fuel tank with liquid and gas spaces. Liquid space communicates with fuel consumers, and gas space, with supercharging gas generator. Controlled booster has low-pressure space communicating through double-acting valve with supercharging gas generator or with discharge line, and high pressure liquid space communicating through check valves with liquid space of tank at one side, and with gas generator, at other side. Double-acting valve is operated by magnetically controlled switch provided with armature and magnets engaging with armature through magnetic circuits, and movable magneto conductive spacer secured on booster piston. Magnets can be installed on booster piston or in other elements of magnetic circuit. Fuel feed system maintains automatically fuel pressure at consumer inlet without the use of external power sources, automatic and control elements and without special protection from pressure rise. EFFECT: enhanced reliability of fuel system operation. 4 cl, 2 dwg
