SPACE VEHICLE ENGINE PLANT FUEL-FEED SYSTEM Russian patent published in 2001 - IPC

FIELD: aeronautical engineering. SUBSTANCE: proposed space vehicle engine plant fuel-feed system has fuel tanks, fuel feed mains with starter-and-cutoff valves and valve to supply fuel to manifolds of control rocket engines, uniting and filling pipelines with separating normally-closed valves and check fillers. Fuel-feed system is furnished additionally with bypass hydraulic main line with shutoff valves. Check filler made in form of separating normally-open valve is installed on filling pipeline between separating normally-closed valves. Bypass hydraulic main line communicates at inlet by one end with fuel tanks through check filler installed on filling pipeline, separating and starter- and-cutoff valves. Second end of bypass hydraulic main line is connected at outlet with check filler installed on manifold of control rocket engines. Invention improves performance characteristics of engine plant owing to provision of repairable system which guarantees serviceability of fuel-feed system in case of violation of tightness in fuel main lines at long operation in space flight. EFFECT: improved reliability of system. 1 dwg