FIELD: mechanical engineering; gas-turbine engines. SUBSTANCE: fuel drainage system of gas-turbine engine has drain tank, fuel pumping out main line with fuel pump connected to tank and fuel bypass main line. Drain tank has float valve. Fuel bypass main line is connected by one end with fuel pump outlet and by other end, with float valve, valve opening and closing levels being arranged higher than intake hole level. EFFECT: prevention of air getting into fuel pump inlet. 1 dwg
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