FUEL FEED SYSTEM Russian patent published in 2010 - IPC F02K9/50 F02B45/06 F02M43/00 

FIELD: engines and pumps.

SUBSTANCE: proposed fuel system comprises fuel and oxidizer tanks with separating reversing membranes, fuel feed lines with start-and-cutoff valves and fuel tank pressurisation system. The latter comprises high-pressure cylinders communicated by air lines with fuel tank gas spaces. Start-and-cutoff valves, throttle devices, gas reducers, pressure pickups and check necks are fitted on said air lines. Each fuel tank incorporates coiled pipeline connected in between fuel tank gas space inlet and fuel tank liquid space outlet. It differs from know systems in that it incorporates manifold fitted between start-and-cutoff devices incorporated with detachable coiled pipeline, and connected via gas feed pipeline with gas source furnished with gas reducer, throttle device and start-and-cutoff device. Detachable coiled pipeline is communicated with air line via heck neck arranged thereon. Gas counter is mounted on detachable coiled pipeline via start-and-cutoff device.

EFFECT: control over position and state of separating reversing membrane.