公开(公告)号：US12092038B2

公开(公告)日：2024-09-17

申请号：US16991275

申请日：2020-08-12

申请人： RTX Corporation

发明人： Gary Collopy ,  Arthur M. Salve, Jr. ,  Michael Winter

IPC分类号： F02C7/36 ,  B64D27/02

CPC分类号： F02C7/36 ,  B64D27/02 ,  B64D27/026 ,  F05D2220/323 ,  F05D2270/023 ,  F05D2270/053 ,  F05D2270/304

摘要： Hybrid electric propulsion systems are described. The systems include a gas turbine engine having low and high speed spools, each spool having a respective compressor and turbine. A mechanical power transmission is configured to at least one of extract power from and supply power to at least one of the low speed spool and the high speed spool, an electric machine is configured to augment rotational power of at least one of the spools, and a controller is operable to determine a rotational speed of the low speed spool, determine a rotational speed of the high speed spool, determine if a predetermined operational zone of operation based on the determined rotational speeds is present, and when a predetermined operational zone is determined, control a power augmentation of at least one spool to limit dwell operation of the gas turbine engine within the predetermined operational zone.