公开(公告)号：US09988924B2

公开(公告)日：2018-06-05

申请号：US14554094

申请日：2014-11-26

Applicant: ROLLS-ROYCE PLC

Inventor： Marko Bacic ,  Leo Vivian Lewis ,  Robert John Irving

IPC: F01D11/24 ,  F01D5/06 ,  F01D9/02 ,  F01D25/12 ,  F01D25/24

CPC classification number: F01D11/24 ,  F01D5/06 ,  F01D9/02 ,  F01D25/12 ,  F01D25/24 ,  F05D2220/32 ,  F05D2240/55 ,  F05D2260/20

Abstract: A gas turbine engine comprising first and second axially spaced turbine rotor stages (46, 48) and a turbine casing (56) radially outside the rotor stages. A first seal segment arrangement (58) forms a cavity (64) radially between the first turbine rotor stage (46) and the turbine casing (56). A first air source (82) is coupled to the first seal segment arrangement (58). A second seal segment arrangement (70) forms a cavity (74) radially between the second turbine rotor stage (48) and the turbine casing (56). A heating chamber (84) is provided radially between the second seal segment arrangement (70) and the turbine casing (56). A duct (86) is coupled between the first air source (82) and the heating chamber (84).

公开(公告)号：US08996277B2

公开(公告)日：2015-03-31

申请号：US13735508

申请日：2013-01-07

Applicant: Rolls-Royce PLC

Inventor： Peter Beecroft ,  Leo Vivian Lewis ,  Marko Bacic

IPC: G06F19/00 ,  F04D27/02 ,  G05B13/02 ,  F01D11/20 ,  F02C9/00 ,  F02C9/28

CPC classification number: F02C9/00 ,  F01D11/08 ,  F01D11/20 ,  F02C9/28 ,  F05D2260/80 ,  F05D2260/82

Abstract: A gas turbine engine control apparatus comprises a controller 34, a memory 36 associated with the controller 34 and inputs 38 for measurement data from an engine. The controller 34 determines the start of a monitoring cycle at 73, receives measurement data at the inputs 38 during the monitoring cycle, manipulates the measurement data to provide an incremental deterioration value representing deterioration occurring within the engine and during the monitoring cycle, and uses the incremental deterioration value at 72 to update a deterioration value 74 stored in the memory 36, and determines the start of a further monitoring cycle.

Abstract translation: 燃气涡轮发动机控制装置包括控制器34，与控制器34相关联的存储器36和用于来自发动机的测量数据的输入38。 控制器34在73处确定监视周期的开始，在监视循环期间接收输入端38的测量数据，操作测量数据以提供表示发动机内部和监视循环期间的劣化的增量劣化值，并使用 72处的增量劣化值，以更新存储在存储器36中的劣化值74，并确定进一步监视循环的开始。

公开(公告)号：US09546564B2

公开(公告)日：2017-01-17

申请号：US14223447

申请日：2014-03-24

Applicant: ROLLS-ROYCE PLC

Inventor： Leo Vivian Lewis

IPC: F01D11/20 ,  F01D11/24 ,  G05B15/02 ,  G01N25/16 ,  F01D11/18

CPC classification number: F01D11/24 ,  F01D11/18 ,  F01D11/20 ,  F05D2260/81 ,  F05D2270/44 ,  F05D2270/71 ,  G01N25/16 ,  G05B15/02

Abstract: A method of characterizing mechanical and thermal growth of a rotor tip clearance arrangement and a method of controlling such an arrangement. The characterization method comprising constructing a finite element model and calibration cases; run the model for the calibration cases to obtain displacements; and calculating component growth therefrom. The growth is characterized and scaled for the operating conditions. The clearance is calculated in a time step from the growths and input to a control arrangement for subsequent time steps.

Abstract translation: 表征转子顶端间隙布置的机械和热生长的方法和控制这种布置的方法。 表征方法包括构建有限元模型和校准案例; 运行校准案例的模型以获得位移; 并计算其成分。 增长的特点和规模的运行条件。 间隔在从增长和输入到随后的时间步长的控制装置的时间步长中计算。