公开(公告)号：US20190063257A1

公开(公告)日：2019-02-28

申请号：US16056595

申请日：2018-08-07

申请人： Nuovo Pignone Tecnologie Srl

发明人： Duccio Fioravanti ,  Giuseppe Iurisci ,  Paola Difesta ,  Giuseppe Sassanelli

IPC分类号： F01D25/12 ,  F04D29/058 ,  F01D25/16 ,  F16C37/00 ,  F16C32/04

摘要： A turbomachine system includes a turbomachine provided with a turbomachine rotor. The turbomachine rotor is comprised of a turbomachine shaft with a first shaft end and a second shaft end. The turbomachine shaft is supported by active magnetic bearings for rotation in a turbomachine casing. The turbomachine system further includes a rotary machine drivingly coupled to the first shaft end, and a first closed cooling circuit adapted to circulate a cooling fluid therein and fluidly coupled to the active magnetic bearings to remove heat therefrom. The closed cooling circuit includes a cooling fluid impeller mounted on the turbomachine shaft for rotation therewith and adapted to circulate the cooling fluid in the closed cooling circuit. The closed cooling circuit further includes a heat exchanger adapted to remove heat from the cooling fluid. A method of operating a turbomachine system is further disclosed.