公开(公告)号：US20200063567A1

公开(公告)日：2020-02-27

申请号：US16283043

申请日：2019-02-22

Applicant: ROLLS-ROYCE plc

Inventor： Martin N. GOODHAND ,  Ian M. BUNCE

IPC: F01D5/14

Abstract: A turbomachine (105) configured to compress supercritical carbon dioxide is shown. The turbomachine comprises, in fluid flow series, an inlet (201), an inducerless radial impeller (202) having a plurality of blades, and a fully vaneless diffuser (203). The inlet is radially flared to induce a radial component in flow prior to an entry to the impeller.

公开(公告)号：US20230175750A1

公开(公告)日：2023-06-08

申请号：US18057270

申请日：2022-11-21

Applicant: ROLLS-ROYCE plc

Inventor： Chloe J. PALMER ,  Ian M. BUNCE

IPC: F25B49/02 ,  G01N25/12 ,  F25B9/00 ,  F25B9/06

CPC classification number: F25B49/02 ,  G01N25/12 ,  F25B9/008 ,  F25B9/06 ,  F25B2600/2515 ,  F25B2309/061

Abstract: A sensor assembly is shown for sensing a crossing of the critical point in a system utilising a working fluid in a transcritical cycle passing through the critical point. A first broadband acoustic sensor is located upstream of a component and a second broadband acoustic sensor is located downstream of the component, each of which are arranged to detect high-frequency and low-frequency sounds caused by the crossing of the critical point. A flow regulation device regulates flow of working fluid through the component in response to the output of one or both of the first broadband acoustic sensor and the second broadband acoustic sensor, thereby adjusting the location of the crossing of the critical point.

公开(公告)号：US20200063568A1

公开(公告)日：2020-02-27

申请号：US16283287

申请日：2019-02-22

Applicant: ROLLS-ROYCE plc

Inventor： Martin N. GOODHAND ,  Ian M. BUNCE

IPC: F01D5/14

Abstract: A turbomachine (105) configured to compress supercritical carbon dioxide is shown. The turbomachine comprises, in fluid flow series, an inlet (201), an inducerless radial impeller (202) having a plurality of backswept blades (211,212) each of which have a blade exit angle (χ2) of from −50 to −70 degrees, and a fully vaneless diffuser (203).

公开(公告)号：US20200063607A1

公开(公告)日：2020-02-27

申请号：US16283353

申请日：2019-02-22

Applicant: ROLLS-ROYCE plc

Inventor： Martin N. GOODHAND ,  Ian M. BUNCE

IPC: F01K25/10 ,  F04D7/02 ,  F04D29/22

Abstract: A turbomachine (105) configured to compress supercritical carbon dioxide is shown. The turbomachine comprises, in fluid flow series, an inlet (201), an inducerless radial impeller (202) having a plurality of blades, and a fully vaneless diffuser (203).

公开(公告)号：US20200063566A1

公开(公告)日：2020-02-27

申请号：US16282976

申请日：2019-02-22

Applicant: ROLLS-ROYCE plc

Inventor： Martin N. GOODHAND ,  Ian M. BUNCE

IPC: F01D5/14

Abstract: A turbomachine (105) configured to compress supercritical carbon dioxide is shown. The turbomachine comprises, in fluid flow series, an inlet (201), an inducerless radial impeller (202) having a plurality of blades, and a fully vaneless diffuser (203). The radius of the inlet (r0) is from 25 to 50 percent of the radius of the impeller (r2).