公开(公告)号：US09879603B2

公开(公告)日：2018-01-30

申请号：US14458593

申请日：2014-08-13

Applicant: ROLLS-ROYCE PLC

Inventor： Alan Robert Maguire ,  Timothy John Scanlon ,  Colin Young

IPC: F02C7/18 ,  F01D5/08 ,  F02C6/08 ,  F01D5/04 ,  F01D9/06 ,  F01D25/08 ,  F02C7/12 ,  F01D25/12 ,  F02C3/00

CPC classification number: F02C7/18 ,  F01D5/046 ,  F01D5/08 ,  F01D5/081 ,  F01D5/082 ,  F01D9/06 ,  F01D25/08 ,  F01D25/12 ,  F02C3/00 ,  F02C6/08 ,  F02C7/12 ,  F05D2220/32 ,  F05D2260/20 ,  F05D2260/205 ,  Y02T50/676

Abstract: This invention concerns a system for cooling components in a gas turbine engine, the gas turbine engine including a compressor for driving a primary gas flow to a combustor and a turbine arranged to be driven by combustion gases from the combustor, wherein the system includes: an annular cooling flow passage arranged for fluid communication between the compressor and the turbine, the flow passage having a first inlet arranged to receive gas from the primary gas flow downstream of compressor, and a second inlet located upstream of the first inlet, wherein the annular cooling flow passage has at least one internal wall for guiding airflow from the first inlet towards the airflow from the second inlet, the airflow from the first and second inlets coalesce within the annular flow passage prior to passing along the passage in a direction from the compressor to the turbine.

公开(公告)号：US10119425B2

公开(公告)日：2018-11-06

申请号：US14827870

申请日：2015-08-17

Applicant: ROLLS-ROYCE PLC

Inventor： Colin Young ,  Guy D Snowsill

IPC: F01D5/30 ,  F01D25/32 ,  F01D5/08

Abstract: A gas turbine engine rotor arrangement comprising at least one blade and a disc is disclosed. The blade extends radially outwards from the disc and is secured thereto by cooperating shank of the blade and recess of the disc. The shank comprises a bottom surface facing a base surface of the recess, the bottom surface having axially extending peripheral edges. The bottom surface is shaped so that when the engine rotor arrangement is in use, liquid in a cavity between the bottom surface and base surface, acted upon by an unbalanced force in the radially outward direction, is guided by the bottom surface to flow between and away from the axial edges.

公开(公告)号：US11629650B2

公开(公告)日：2023-04-18

申请号：US17651918

申请日：2022-02-22

Applicant: ROLLS-ROYCE plc

Inventor： Martin Berthold ,  Colin Young

IPC: F16H57/04 ,  F02C7/36 ,  F16H57/08

Abstract: A planetary gearbox having a sun gear, a plurality of planet gears, a ring gear, and a plurality of journal bearing pins. At its axially forward face side and/or at its axially rearward face side, each planet gear forms a recess that extends inside the planet gear starting from the face side. The planet gear forms a protrusion at its axially forward face side and/or at its axially rearward face side. The protrusion has an axial extent and a radial extent, wherein the radial extent is limited at the respective face side to the area between the planet gear inner bore and the radial inner limit of the respective recess in the planet gear, and wherein the protrusion is configured to provide for a flow path for oil emerging from the journal bearing that guides the oil away from the journal bearing.

公开(公告)号：US10883607B2

公开(公告)日：2021-01-05

申请号：US16155152

申请日：2018-10-09

Applicant: ROLLS-ROYCE plc

Inventor： Colin Young

IPC: F16J15/42 ,  F01D25/18

Abstract: A hydraulic seal arrangement for a rotating machine comprises an annular housing disposed around a shaft having an axis of rotation, the annular housing being relatively rotatable with respect to the shaft and having a sealing fluid zone within a radially outer portion of an interior of the annular housing. A fin extends radially from the shaft into the annular housing, with at least a portion of the fin extending radially into the sealing fluid zone. In use, the sealing fluid is centrifugally accelerated before being directly introduced into the sealing fluid zone by a sealing fluid inlet so as to generate a swirl component upon its introduction.