公开(公告)号：US20230203956A1

公开(公告)日：2023-06-29

申请号：US18062734

申请日：2022-12-07

Applicant: ROLLS-ROYCE plc

Inventor： Neelambaran KARAPURATH ,  Alexis Lambourne ,  Neil E. GLOVER

IPC: F01D5/30 ,  F02C7/36 ,  F01D5/02 ,  F03G7/06

CPC classification number: F01D5/3007 ,  F02C7/36 ,  F01D5/02 ,  F03G7/0614

Abstract: A bladed disc for a rotating machine comprising a central disc that rotates about a central axis, the central disc having a series of blades arranged around its periphery; the blades have dovetail roots which engage with slots on the central disc; the bladed disc being configured so that there is a pre-loading force between the blades and the central disc such that each blade is forced away from the central axis of the bladed disc; and wherein the pre-loading force is equal or greater than 40% of the maximum centrifugal force applied to the blade during a flight cycle.

公开(公告)号：US20220255162A1

公开(公告)日：2022-08-11

申请号：US17648342

申请日：2022-01-19

Applicant: ROLLS-ROYCE plc

Inventor： Alexis LAMBOURNE ,  Neil E. GLOVER ,  Jameel B. KHAN

IPC: H01M10/6556 ,  H01M10/613 ,  H01M10/625 ,  H01M50/522

Abstract: A battery or fuel cell module comprising a plurality of battery cells or fuel cells and metal foam bus bars that electrically connect together at least some of the battery cells or fuel cells is described. The battery or fuel cell module may further include a cooling system arranged to provide a flow of cooling fluid through the metal foam bus bars to remove heat from the bus bars. In some examples, the cooling system comprises one or more forced air devices. In other examples, the metal foam bus bars are encased in a fluid-impermeable skin so that the bus bars form fluid-tight pipes with a metal foam interior, and the cooling system is arranged to provide the flow of cooling fluid through the metal foam interior of the fluid-tight pipes.