公开(公告)号：US20200023963A1

公开(公告)日：2020-01-23

申请号：US16451734

申请日：2019-06-25

Applicant: ROLLS-ROYCE plc

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

IPC: B64C29/00 ,  B64D27/10

Abstract: 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：US20220112984A1

公开(公告)日：2022-04-14

申请号：US17491947

申请日：2021-10-01

Applicant: ROLLS-ROYCE plc

Inventor： Robert C. BACKHOUSE ,  Darren JAMES

IPC: F17C1/06

Abstract: A storage tank for storing gaseous hydrogen comprises a boundary wall having a laminate composite structure which includes a resin-rich layer forming an internal surface of the boundary wall, a glass-fibre composite layer in contact with the resin-rich layer and a carbon fibre composite layer in contact with the glass-fibre composite layer on a side thereof remote from the resin-rich layer. The laminate structure provides a high level of hydrogen impermeability and resistance to micro-cracking as a result of pressure cycling, providing the tank with a gravimetric efficiency appropriate to aeronautical applications.