THREE-STAGE TURBOPUMP SET Russian patent published in 2003 - IPC

FIELD: mechanical engineering; multistage sets. SUBSTANCE: proposed three- stage turbopump set contains pumps of first and second stages, topping-up pump, power turbine and reducer. Topping-up pump is located from outer side of first and second stage pumps in boss of housing of reducer of said stages. Input of topping-up pump is connected by branch pipe with space of second stage volute housing. Shaft-gear of topping-up pump is connected with reducer of first and second stages. EFFECT: enlarged range of application, reduced overall dimensions and weight. 2 dwg