DRAINAGE SYSTEM OF MARINE GAS-TURBINE ENGINES Russian patent published in 2002 - IPC

FIELD: manufacture of engines; drainage systems of marine gas- turbine engines. SUBSTANCE: drainage reservoir of engine consists of two parts: drainage reservoir for pure fuel and main drainage reservoir which are interconnected by means of bypass pipe line provided with valve; drainage system is also provided with jet pump connected with pure fuel drainage reservoir by means of pipe line through valve. Jet pump operates due to fuel pressure differential at suction and discharge pipe lines of fuel-feed pump of gas-turbine engine. Jet pump makes it possible to return pure drainage fuel accumulated in drainage pure fuel reservoir and pure drainage fuel from main drainage reservoir through bypass system mounted between reservoirs. EFFECT: enhanced efficiency. 1 dwg