公开(公告)号：US20220364999A1

公开(公告)日：2022-11-17

申请号：US17862863

申请日：2022-07-12

Applicant: ROLLS-ROYCE PLC

Inventor： Malcolm L HILLEL ,  Bryce D CONDUIT ,  Anthony M DICKENS ,  James V TAYLOR ,  Robert J MILLER ,  Christopher R HALL

IPC: G01N21/95

Abstract: A computer-implemented method comprising: controlling input of data quantifying damage received by a compressor of a gas turbine engine into a first machine learning algorithm; receiving data quantifying a first operating parameter of the compressor as an output of the first machine learning algorithm; and determining operability of the compressor by comparing the received data quantifying the first operating parameter of the compressor with a threshold.

公开(公告)号：US20220281615A1

公开(公告)日：2022-09-08

申请号：US17562775

申请日：2021-12-27

Applicant: ROLLS-ROYCE plc

Inventor： Malcolm L HILLEL ,  Alexis LAMBOURNE

IPC: B64D37/30 ,  B64C1/22 ,  B64D37/04 ,  B64D37/06

Abstract: An aircraft comprises a hydrogen-fuelled propulsion system, a plurality of like generally cylindrical hydrogen storage tanks and a conveying system arranged to convey hydrogen from the hydrogen storage tanks to the hydrogen-fuelled propulsion system. The aircraft further comprises a fuselage having a cargo bay (502) including one or more (510A-G) of the plurality of hydrogen storage tanks, the longitudinal axes (511A-G) of the one or more hydrogen storage tanks within the cargo bay extending parallel to the longitudinal axis (501) of the fuselage and lying in one or more planes (595, 597) extending across the width dimension of the cargo bay. The hydrogen storage tanks within the cargo bay have a common aspect ratio R in the range 4.2≤R≤25.7, allowing the volume of space with the cargo bay occupied by stored hydrogen to be maximised or approximately maximised.

公开(公告)号：US20250115347A1

公开(公告)日：2025-04-10

申请号：US18729431

申请日：2023-01-04

Applicant: ROLLS-ROYCE plc

Inventor： Chloe J. PALMER ,  Malcolm L HILLEL ,  Daniel CLARK

IPC: B64D37/04 ,  B64D37/30 ,  F17C1/16

Abstract: A storage tank for gaseous hydrogen includes a continuous tank wall defining a serial array of hollow elongate tank portions of substantially constant cross-section and hollow connecting portions defining an internal storage volume, wherein adjacent ends of any pair of adjacent hollow elongate tank portions are connected by a hollow connecting portion having a cross-sectional dimension smaller than those of the adjacent hollow elongate tanks portions. The tank may be included in an aircraft wing such that it extends spanwise through one or more internal spars of the wing, thus providing a continuous gas storage volume at a given chordwise position notwithstanding the spars, and providing for storage of gaseous hydrogen at higher gravimetric efficiency than is achievable by a plurality of coupled discrete tanks disposed between the spars.

公开(公告)号：US20230249840A1

公开(公告)日：2023-08-10

申请号：US18187830

申请日：2023-03-22

Applicant: ROLLS-ROYCE plc

Inventor： Malcolm L HILLEL ,  Alexis LAMBOURNE

IPC: B64D37/30 ,  B64C1/22 ,  B64D37/04 ,  B64D37/06

CPC classification number: B64D37/30 ,  B64C1/22 ,  B64D37/04 ,  B64D37/06

Abstract: An aircraft comprises a hydrogen-fuelled propulsion system, a plurality of like generally cylindrical hydrogen storage tanks and a conveying system arranged to convey hydrogen from the hydrogen storage tanks to the hydrogen-fuelled propulsion system. The aircraft further comprises a fuselage having a cargo bay (502) including one or more (510A-G) of the plurality of hydrogen storage tanks, the longitudinal axes (511A-G) of the one or more hydrogen storage tanks within the cargo bay extending parallel to the longitudinal axis (501) of the fuselage and lying in one or more planes (595, 597) extending across the width dimension of the cargo bay. The hydrogen storage tanks within the cargo bay have a common aspect ratio R in the range 4.2≤R≤25.7, allowing the volume of space with the cargo bay occupied by stored hydrogen to be maximised or approximately maximised.