公开(公告)号：US09828869B2

公开(公告)日：2017-11-28

申请号：US14537382

申请日：2014-11-10

Applicant: ROLLS-ROYCE PLC

Inventor： Marko Bacic ,  Glenn Alexander Knight ,  Parag Vyas ,  Sean Patrick Ellis

IPC: G06F19/00 ,  F01D11/14 ,  F01D11/20 ,  F02C9/28 ,  F02C9/00

CPC classification number: F01D11/14 ,  F01D11/20 ,  F02C9/00 ,  F02C9/28 ,  F05D2270/02 ,  F05D2270/04 ,  F05D2270/051 ,  F05D2270/20 ,  F05D2270/309 ,  F05D2270/44

Abstract: A thrust demand signal is provided to a processor of a gas turbine engine and is modified, according to growth time constants of a rotor and/or a casing of the engine, in order to control the rotational speed or the rate of change of rotational speed of the engine so as to prevent contact between the rotor and the casing.