公开(公告)号：WO2018091871A1

公开(公告)日：2018-05-24

申请号：PCT/GB2017/053413

申请日：2017-11-13

Applicant: CUMMINS LTD

Inventor： MOORE, Simon David ,  EDWARDS, Matthew William ,  HUGHES, Stephen David ,  SANDFORD, George E. ,  MADHUSUDAN, Nandakishore Arcot

IPC: F01D9/04 ,  F01D17/16

Abstract: A turbine for a turbo-machine is proposed in which, at a gas inlet, vanes, extending from a nozzle ring though slots in a shroud, are shaped on one side to as to substantially conform to the profile of the surface of the slot, whereby a close connection can be formed between the vane and the slot to inhibit leakage of gas between the vane and the slot surface.

公开(公告)号：WO2019220112A1

公开(公告)日：2019-11-21

申请号：PCT/GB2019/051333

申请日：2019-05-15

Applicant: CUMMINS LTD

Inventor： EDWARDS, Matthew William ,  MOORE, Simon David ,  PARRY, Christopher ,  SULLIVAN, Andrew ,  GHOSH, Paul ,  HOLDEN, Mark R. ,  SANDFORD, George E. ,  MADHUSUDAN, Nandakishore Arcot ,  HUGHES, Stephen David ,  CONLON, Karl

IPC: F01D17/16 ,  F01D17/14

Abstract: A turbine for a turbo-machine is proposed in which, at a gas inlet for a turbine wheel, vanes (407) extend from a nozzle ring (405) though slots in a shroud (6). The nozzle ring (405) and shroud (6) are relatively rotatable about a rotational axis of the turbine by at least 0.1 degrees. In use, the nozzle ring (405) and shroud are relatively rotated to bring one side of the vane (407) into close contact with one surface of the slot, to inhibit leakage of gas between the vane and the slot surface. For this purpose the respective surfaces of the nozzle and slot can be configured to closely conform to each other. If there is differential thermal expansion of the shroud and nozzle ring (405), the nozzle ring (405) and shroud can relatively rotate, to withdraw the vane (407) from the edge of the slot to relieve the pressure between them.

公开(公告)号：WO2019077350A1

公开(公告)日：2019-04-25

申请号：PCT/GB2018/052995

申请日：2018-10-17

Applicant: CUMMINS LTD

Inventor： MCGEEHAN, Oscar Toby Elliott ,  BYWATER, John ,  GOODYEAR, Richard ,  HOLDEN, Mark R. ,  SANDFORD, George E.

IPC: F02B37/02 ,  F01D9/02 ,  F02B37/18 ,  F02B37/22 ,  F01D17/10

CPC classification number: F02B37/025 ,  F01D9/026 ,  F01D17/105 ,  F02B37/183 ,  F02B37/225 ,  F05D2220/40

Abstract: There is provided a turbine comprising: a turbine housing; a turbine wheel; an inlet upstream of the turbine wheel, the inlet defining a first inlet portion and a second inlet portion; an outlet downstream of the turbine wheel, the outlet defining a first outlet portion and a second outlet portion; and a wastegate arrangement configured to selectively vent exhaust gas from the first inlet portion to the first outlet portion via a first bypass passage, and further configured to selectively vent exhaust gas from the second inlet portion to the second outlet portion via a second bypass passage; wherein the first outlet portion and the second outlet portion are separated by a baffle of the turbine housing.

公开(公告)号：WO2022263823A1

公开(公告)日：2022-12-22

申请号：PCT/GB2022/051510

申请日：2022-06-15

Applicant: CUMMINS LTD

Inventor： HUGHES, Stephen David ,  SANDFORD, George E. ,  SHAW, Christopher J.

IPC: F01D17/14 ,  F01D17/16

Abstract: A turbine for a turbo-machine is proposed in which, at a gas inlet, vanes, extend from a nozzle ring though slots in a shroud. The nozzle ring has a radially-inner corner which is a gentler curve than in a conventional system, and this is found to lead to improved efficiency of the turbine.

公开(公告)号：WO2020169986A1

公开(公告)日：2020-08-27

申请号：PCT/GB2020/050416

申请日：2020-02-21

Applicant: CUMMINS LTD

Inventor： DANIELS, Robin ,  HILL, Lisa Jane ,  CARR, Henry David Lambton ,  WILSON, Jonathan ,  CURTIS, Lee ,  PATEL, Fahim Ismail ,  WHITLESEA, Matthew ,  PURDEY, Matthew J ,  WILLEY, Donald E. ,  MCEWEN, James Alexander ,  MATHEWS, Levinia ,  PARRY, Christopher ,  ROBERTS, Thomas ,  SANDFORD, George E. ,  CADDY, Stephen ,  HULSON, Thomas ,  LEE, Dave ,  SELWAY, Martin ,  FRANKS, Kevin

IPC: F16J15/44 ,  F01D11/02 ,  F03B11/00 ,  F16K5/04 ,  F16K47/04 ,  F01D17/14

Abstract: There is provide a seal assembly (2) comprising: a first component (8) and a second component (10) spaced apart from the first component so as to define a passage (12) for the transfer of fluid from an inlet (14) of the seal assembly to an outlet (16) of the seal assembly, wherein the first component comprises a concavity (18) at least partially defining the passage, and wherein no part of the second component extends into the portion of the passage bounded by the concavity.