公开(公告)号：US20240228055A9

公开(公告)日：2024-07-11

申请号：US18483106

申请日：2023-10-09

申请人： ROLLS-ROYCE plc

发明人： Marko BACIC ,  John COULL

IPC分类号： B64D37/30 ,  B64D37/34 ,  F02C7/22

CPC分类号： B64D37/30 ,  B64D37/34 ,  F02C7/22

摘要： An aircraft propulsion system fuel system comprises a fuel line configured to receive liquid hydrogen fuel from a fuel tank, a vaporizer configured to vaporize liquid hydrogen fuel from the fuel line to generate a supercritical or gaseous fuel, a main fuel pump configured to receive and to pump the gaseous or supercritical fuel from the vaporizer during operation of the propulsion system, and a heater provided downstream in fuel flow to the main fuel pump, and configured to raise the temperature of the gaseous or supercritical fuel to a propulsion system delivery temperature.

公开(公告)号：US20200023963A1

公开(公告)日：2020-01-23

申请号：US16451734

申请日：2019-06-25

申请人： ROLLS-ROYCE plc

发明人： Darren JAMES ,  Anmol A. MANOHAR ,  David FILLINGHAM ,  Marko BACIC

IPC分类号： B64C29/00 ,  B64D27/10

摘要： An aircraft defining longitudinal, lateral and vertical directions the aircraft comprising: a main wing and a tail, each being pivotable about the lateral direction (B); a plurality of main propellers mounted to the main wing, and configured to pivot with the main wing; at least one cruise propeller mounted to the tail, and configured to pivot with the tail; each main propeller being stowable from a deployed position to a stowed position; wherein each main propeller has a fixed pitch, and each cruise propeller has a variable pitch.

公开(公告)号：US20150247417A1

公开(公告)日：2015-09-03

申请号：US14458770

申请日：2014-08-13

申请人： ROLLS-ROYCE PLC

发明人： Marko BACIC ,  James TOOKE

IPC分类号： F01D19/02 ,  F01D21/14 ,  F01D25/12 ,  F01D21/00 ,  F01D7/02 ,  F01D5/02

CPC分类号： F01D19/02 ,  F01D5/02 ,  F01D7/02 ,  F01D11/20 ,  F01D21/003 ,  F01D21/14 ,  F01D25/12 ,  F04D27/001 ,  F04D29/164 ,  F04D29/526 ,  F05D2220/32 ,  F05D2260/81 ,  F05D2260/821 ,  F05D2270/114 ,  F05D2270/301 ,  F05D2270/305 ,  F05D2270/44 ,  F05D2270/80

摘要： A method of controlling a rotor tip clearance arrangement of a gas turbine engine and a control system configured to control rotor tip clearance. Steps include measuring at least one engine parameter; determining engine power demand from the at least one engine parameter; and calculating rotor tip clearance given the determined engine power demand. The rotor tip clearance arrangement is controlled to increase or decrease the rotor tip clearance based on the difference between the calculated clearance and a predefined target clearance.

摘要翻译： 一种控制燃气涡轮发动机的转子顶端间隙布置的方法和被配置为控制转子尖端间隙的控制系统。 步骤包括测量至少一个引擎参数; 从所述至少一个发动机参数确定发动机功率需求; 并根据确定的发动机功率需求计算转子顶端间隙。 基于计算出的间隙和预定义的目标间隙之间的差异，控制转子​​顶端间隙布置以增加或减小转子顶端间隙。

公开(公告)号：US20220291683A1

公开(公告)日：2022-09-15

申请号：US17672385

申请日：2022-02-15

申请人： ROLLS-ROYCE plc

发明人： Marko BACIC ,  Peter A. BEECROFT

IPC分类号： G05D1/00 ,  G08G5/00 ,  B64D27/24 ,  B64D13/06 ,  B64D43/00 ,  B60L50/60 ,  B60L50/70 ,  B64C29/00 ,  G05D1/10

摘要： Computer-implemented methods for controlling the operation of aircraft, particularly electric or hybrid electric aircraft, are described. One such method, which may be implemented on a Flight Management System (FMS) of the aircraft, comprises: obtaining flight path data for the aircraft, the flight path defining a three-dimensional path from an origin to a destination; receiving weather data indicative of weather conditions along the flight path; and determining an amount of energy required to fly the aircraft along the flight path. The determination uses an aircraft energy usage model whose inputs include the flight path data and the weather data. Based on the determination and a comparison with an amount of stored energy available to the aircraft, the FMS may validate the flight path for flight or reject the flight path.

公开(公告)号：US20210062732A1

公开(公告)日：2021-03-04

申请号：US16945061

申请日：2020-07-31

申请人： ROLLS-ROYCE plc

发明人： Cerith DAVIES ,  Marko BACIC

IPC分类号： F02C9/54 ,  F02C7/36 ,  F02C3/06

摘要： A method of controlling a gas turbine engine including receiving an instantaneous thrust demand for current operation of the engine, determining the inlet flow rate and/or the pressure ratio within the compressor of the engine and determining whether the inlet flow rate and/or the pressure ratio match the working line for the compressor. The angle of one or more vane of the compressor is adjusted according to a closed control loop if the inlet flow rate and/or pressure ratio lie outside said desired range in order to adjust the inlet inflow rate and/or pressure ratio to meet the working line. The fuel flow to the engine combustor is adjusted concurrently in order to meet the thrust demand.

公开(公告)号：US20170370242A1

公开(公告)日：2017-12-28

申请号：US15620024

申请日：2017-06-12

申请人： ROLLS-ROYCE PLC

发明人： Marko BACIC ,  Glenn A KNIGHT

IPC分类号： F01D11/20 ,  B64D13/08 ,  B64D13/02 ,  F02C7/18 ,  F02C6/08 ,  B64D27/16 ,  B64D13/06 ,  B64D13/00

CPC分类号： F01D11/20 ,  B64D13/006 ,  B64D13/02 ,  B64D13/08 ,  B64D27/10 ,  B64D27/16 ,  B64D2013/003 ,  B64D2013/0603 ,  F01D11/24 ,  F02C6/08 ,  F02C7/185 ,  F05D2220/323 ,  F05D2240/307 ,  F05D2260/213 ,  Y02T50/671

摘要： A gas turbine engine is disclosed having a tip clearance control system. The tip clearance control system has a cabin blower system, a casing arranged in use about a rotor of a gas turbine engine and a fluid delivery passage. The cabin blower system having a cabin blower compressor arranged in use to compress fluid used in a cabin of an aircraft and to compress fluid conducted via the fluid delivery passage into heat exchange with the casing.

公开(公告)号：US20160326901A1

公开(公告)日：2016-11-10

申请号：US15133883

申请日：2016-04-20

申请人： ROLLS-ROYCE plc

发明人： Arthur Laurence ROWE ,  Marko BACIC

IPC分类号： F01D11/24

CPC分类号： F01D11/24 ,  F01D21/12 ,  F01D21/14 ,  F05D2270/021 ,  F05D2270/112 ,  F05D2270/303 ,  F05D2270/304 ,  F05D2270/705

摘要： A method of controlling turbine tip clearance includes measuring turbine speed; measuring turbine temperature; measuring parameters indicative of current operating conditions; determining limits for the turbine speed and turbine temperature; calculating target tip clearance from the turbine speed, turbine temperature and parameters, to optimise turbine efficiency within the turbine speed and turbine temperature limits; and controlling turbine tip clearance apparatus to the calculated target tip clearance.

摘要翻译： 控制涡轮机顶端间隙的方法包括测量涡轮机速度; 测量涡轮机温度; 测量指示当前操作条件的参数; 确定涡轮机转速和涡轮机温度的限制; 从涡轮转速，涡轮机温度和参数计算目标叶尖间隙，以优化涡轮机转速和涡轮机温度极限内的涡轮机效率; 以及将涡轮机顶端间隙装置控制到所计算的目标顶端间隙。

公开(公告)号：US20230230488A1

公开(公告)日：2023-07-20

申请号：US17890613

申请日：2022-08-18

申请人： ROLLS-ROYCE plc

发明人： Derek S. WALL ,  Andrew R. MILLS ,  Peter A. BEECROFT ,  Marko BACIC ,  Romain GUICHERD

IPC分类号： G08G5/00 ,  B64C13/18

CPC分类号： G08G5/0034 ,  G08G5/0065 ,  B64C13/18

摘要： A computer-implemented method of enabling optimisation of trajectory for a vehicle, the method comprising: determining a trajectory for the vehicle using: an algorithm; a vehicle model defining path constraints for the vehicle through space; a propulsion system model defining parameters of a propulsion system of the vehicle; an objective function defining one or more objectives; and controlling output of the determined trajectory.

公开(公告)号：US20220292991A1

公开(公告)日：2022-09-15

申请号：US17672345

申请日：2022-02-15

申请人： ROLLS-ROYCE plc

发明人： Marko BACIC ,  Peter A BEECROFT

IPC分类号： G08G5/00 ,  B64D27/24 ,  B64D13/06 ,  B60L58/12 ,  B64D43/00 ,  B64C29/00 ,  G05D1/00 ,  G05D1/02

摘要： Computer-implemented methods for controlling the operation of aircraft, particularly electric or hybrid electric aircraft, are described. One such method, implemented on a Flight Management System (FMS) of an aircraft, comprises: receiving, by the FMS, weather data indicative of weather conditions around the aircraft; and selecting, by the FMS, based on the received weather data, one of a plurality of different pre-defined FMS profiles, each FMS profile corresponding to a different range of weather conditions and defining a different set of aircraft operating parameters. The aircraft may be flown under the control of the FMS using the selected FMS profile.

公开(公告)号：US20220292987A1

公开(公告)日：2022-09-15

申请号：US17672430

申请日：2022-02-15

申请人： ROLLS-ROYCE plc

发明人： Marko BACIC ,  Peter A BEECROFT

IPC分类号： G08G5/00 ,  B64D27/24 ,  B64C29/00 ,  B64D13/06 ,  G01W1/02

摘要： Computer-implemented methods for controlling the operation of aircraft, particularly electric or hybrid electric aircraft, are described. One such method, which may be implemented on a Flight Management System of the aircraft, comprises: receiving weather data indicative of weather conditions between a flight origin and a flight destination of the aircraft; and determining, using a constrained optimization method and a weather data dependent aircraft energy usage model, a three-dimensional flight path for the aircraft from the origin to the destination. The constrained optimization method may determine a flight path constrained by, amongst other things the energy required by an Environmental Control System of the aircraft.