公开(公告)号：US20220112982A1

公开(公告)日：2022-04-14

申请号：US17450519

申请日：2021-10-11

Applicant: Rolls-Royce plc

Inventor： Eric W. DEAN

IPC: F17C1/02

Abstract: An organic composite gas storage tank 100 comprises a hollow central portion 106 which is substantially cylindrical and formed integrally with first and second end portions 102, 104, and which defines a longitudinal tank axis 301. The first end portion comprises a hollow truncated conical region which meets the hollow central portion at a first end thereof, the outer and inner radii of the hollow truncated conical region decreasing in a direction along the longitudinal tank axis away from the hollow central portion. An organic fibre winding 107 extends at least between axial positions which coincide with the hollow truncated conical region of the first end portion and the hollow central portion respectively. The first end portion has a higher axial strength than that achievable for hemispherical end portion of a tank of the prior art.

公开(公告)号：US20230288026A1

公开(公告)日：2023-09-14

申请号：US18200613

申请日：2023-05-23

Applicant: ROLLS-ROYCE plc

Inventor： Eric W. DEAN

IPC: F17C1/02

CPC classification number: F17C1/02 ,  F17C2201/0109 ,  F17C2203/012 ,  F17C2203/0604 ,  F17C2203/0621 ,  F17C2203/0665 ,  F17C2203/0673 ,  F17C2221/012 ,  F17C2260/036 ,  F17C2270/01

Abstract: An organic composite gas storage tank 100 comprises a hollow central portion 106 which is substantially cylindrical and formed integrally with first and second end portions 102, 104, and which defines a longitudinal tank axis 101. The first end portion 102 comprises a hollow truncated conical region 102A which meets the hollow central portion at a first end thereof, and a cylindrical region 102B which meets an end of the hollow truncated conical portion remote from the hollow central portion. An organic fibre winding 107 extends at least between axial positions which coincide with the hollow truncated conical region of the first end portion and the hollow central portion respectively. A hollow metal end-fitting 120 has a hollow truncated conical portion 124 embedded within the wall of the hollow truncated conical region of the first end portion, providing a long leakage path around the metal end-fitting.

公开(公告)号：US20220227497A1

公开(公告)日：2022-07-21

申请号：US17556235

申请日：2021-12-20

Applicant: ROLLS-ROYCE plc

Inventor： Eric W. DEAN

IPC: B64D37/04 ,  B64D37/06 ,  B64D37/30 ,  B64D27/10

Abstract: A hydrogen-fuelled aircraft 200 comprises a fuselage, wings and a plurality of cylindrical elongate hydrogen storage tanks mounted on the exterior of the fuselage and disposed vertically above a plane containing the wing-tips of the aircraft. An aerodynamic fairing forms a continuous air-washed surface of the aircraft together with a lower portion of the fuselage. The hydrogen storage tanks extend generally parallel to the fuselage and are contained between the fairing and the fuselage. The aircraft provides for storage of a large volume of compressed hydrogen without compromising the volume of usable space within the fuselage. The aircraft is able to carry out flight missions comparable in range and payload to those of an equivalent conventionally-fuelled aircraft.

公开(公告)号：US20220228713A1

公开(公告)日：2022-07-21

申请号：US17556211

申请日：2021-12-20

Applicant: ROLLS-ROYCE plc

Inventor： Philip D. BUTLER ,  Eric W. DEAN ,  Chloe J. PALMER

IPC: F17C1/16 ,  F17C13/02 ,  H01M8/04089 ,  H01M8/04746 ,  H01M8/04111

Abstract: A hydrogen storage tank has a composite laminate wall, a hydrogen-porous layer in contact with the outer surface of the composite laminate wall and a hydrogen-non-porous layer in contact with the outer surface of the hydrogen-porous layer, the hydrogen-non-porous layer having an output port for venting hydrogen which passes through the composite laminate wall and the hydrogen-porous layer from the interior of the tank. The tank allows hydrogen which leaks through the composite laminate wall to be collected and re-used. The invention also allows for the rate of hydrogen leakage from the tank to be measured, providing a measure of the structural integrity of the tank.