公开(公告)号：US20230219695A1

公开(公告)日：2023-07-13

申请号：US18187818

申请日：2023-03-22

Applicant: ROLLS-ROYCE plc

Inventor： Malcolm L. HILLEL ,  Alexis LAMBOURNE

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

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

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：US20190106997A1

公开(公告)日：2019-04-11

申请号：US16112940

申请日：2018-08-27

Applicant: ROLLS-ROYCE plc

Inventor： Jae-Hoon CHUNG ,  Malcolm L. HILLEL

IPC: F01D5/34 ,  B23P15/02 ,  F01D5/28

Abstract: A bladed disk may be arranged to rotate about an axis of rotation and including a rotor disk having an axial length extending from a first end to a second end, along the axis of rotation and a radial thickness extending between a first radius from the axis of rotation and a second radius from the axis of rotation, less than the first radius. The bladed disk may include a plurality of blades formed integrally with the rotor disk and arranged circumferentially around the rotor disk, and a first set of divides and a second set of divides, each divide comprising a partial break in the rotor disk extending axially from the first end of the rotor disk to the second end of the rotor disk and radially from the first radius to a third radius, less than the first radius and greater than the second radius.