公开(公告)号：US10450896B2

公开(公告)日：2019-10-22

申请号：US15165743

申请日：2016-05-26

Applicant: ROLLS-ROYCE plc

Inventor： Thomas G Mulcaire ,  Ian M Garry

IPC: F01D25/24 ,  B22F3/12 ,  B22F3/15 ,  B22F5/00 ,  B22F5/10

Abstract: The manufacture of a casing which has a boss includes providing two canister portions a first defining an outer wall geometry of a casing including a boss and a second defining an inner wall geometry of the casing. The casing is made using known PHIP methods. The second canister portion includes an array of holes or recesses which, when the canister portions are aligned, face a recess on the first canister portion which defines the boss such that in the nett shape COS an array of pedestals is provided aligned with the boss. The dimension from an exposed end of a pedestal to an exposed surface of the boss is sufficient to receive a bolt thread of the minimum length required to secure a component to the boss.

公开(公告)号：US10712003B2

公开(公告)日：2020-07-14

申请号：US15454590

申请日：2017-03-09

Applicant: ROLLS-ROYCE plc

Inventor： Thomas G Mulcaire

IPC: F23R3/28 ,  F23R3/00

Abstract: A combustion chamber assembly comprises an annular combustion chamber casing, a combustion chamber, a fuel injector and a tubular seal. The combustion chamber comprises an upstream end wall having an aperture extending there-through. A fuel injector head of the fuel injector is locatable in the aperture in the end wall and the fuel injector head has an axis. The tubular seal is positioned between the fuel injector head and the aperture in the end wall and the tubular seal has a flange and an aperture extends there-through. The tubular seal is movable radially and circumferentially with respect to the axis of the casing. The fuel injector head is locatable in the tubular seal. The aperture in the upstream end wall has a major radial dimension and a minor circumferential dimension relative to the axis of the casing to allow insertion or removal of a lean burn fuel injector head.

公开(公告)号：US10344977B2

公开(公告)日：2019-07-09

申请号：US15421030

申请日：2017-01-31

Applicant: ROLLS-ROYCE plc

Inventor： Thomas G Mulcaire ,  Robert A Hicks ,  Marcus Foale

IPC: F23R3/00 ,  F23R3/06 ,  F23R3/50

Abstract: A combustion chamber arrangement has an annular outer wall and an annular inner wall having an upstream row of tiles and a downstream row of tiles. The outer wall has a concave bend which is less than 175°. The downstream end of the upstream tiles and the upstream end of the downstream tiles are adjacent the concave bend. The downstream ends of the upstream tiles are spaced at a greater distance from the inner surface of the annular outer wall than the upstream end of the downstream tiles. The upstream tiles have curved lips extending in a downstream direction which overlap but are spaced radially from the upstream ends of the downstream tiles. The outer wall has a row of apertures to direct coolant onto the outer surfaces of the curved lips and the upstream tiles has a row of apertures extending to the inner surfaces of the curved lips.