公开(公告)号：US20180079515A1

公开(公告)日：2018-03-22

申请号：US15684265

申请日：2017-08-23

申请人： ROLLS-ROYCE PLC

发明人： Richard HARWOOD ,  Kalyani G. MENON ,  Joseph PALMER ,  Ivan POPOVIC

IPC分类号： B64D27/24

CPC分类号： B64D27/24 ,  B61C5/00 ,  B63H21/17 ,  B63H21/20 ,  B64D27/02 ,  B64D27/10 ,  B64D2027/026 ,  H02J3/005 ,  H02J3/02 ,  H02J3/46 ,  H02J7/34 ,  H02P5/74 ,  Y02T30/10 ,  Y02T50/44 ,  Y02T50/64 ,  Y02T70/5209 ,  Y02T70/5236 ,  Y02T90/46

摘要： An aircraft propulsion system (10) comprises at least first and second electrical generators (15a, 15b), each being configured to provide electrical power to a respective first and second AC electrical network (16a, 16b). The system (10) further comprises at least first and second AC electrical motors (19a, 19b) directly electrically coupled to a respective AC network (16a, 16b) and coupled to a respective propulsor (4), and a DC electrical network electrically coupled to the first and second AC networks (16a, 16b) via respective first and second AC to DC converters (17a, 17b), and to a further electrical motor 19c), the further electrical motor (19c) being coupled to a propulsor (4).

公开(公告)号：US20210214094A1

公开(公告)日：2021-07-15

申请号：US17197708

申请日：2021-03-10

申请人： ROLLS-ROYCE PLC

发明人： Richard HARWOOD ,  Kalyani G. MENON ,  Joseph PALMER ,  Ivan POPOVIC

IPC分类号： B64D27/24 ,  B63H21/20 ,  H02P5/74 ,  B61C5/00 ,  B63H21/17 ,  B64D27/02 ,  H02J3/46 ,  H02J7/34 ,  H02J3/02

摘要： An aircraft propulsion system includes at least first and second electrical generators, each being configured to provide electrical power to a respective first and second AC electrical network. The system further comprises at least first and second AC electrical motors directly electrically coupled to a respective AC network and coupled to a respective propulsor, and a DC electrical network electrically coupled to the first and second AC networks via respective first and second AC to DC converters, and to a further electrical motor, the further electrical motor being coupled to a propulsor.

公开(公告)号：US20170301609A1

公开(公告)日：2017-10-19

申请号：US15465234

申请日：2017-03-21

申请人： ROLLS-ROYCE plc

发明人： Kalyani G. MENON ,  Richard HARWOOD

IPC分类号： H01L23/473 ,  B64F1/34 ,  H05K5/06 ,  H05K5/03 ,  H05K5/02 ,  H02M7/00 ,  H05K7/20 ,  F02C7/12 ,  F02C7/26 ,  H01L23/053 ,  H01L23/08 ,  H01L23/10 ,  H01L23/467 ,  H01L23/00 ,  H01L25/07 ,  H01L25/11

CPC分类号： H01L23/473 ,  B64F1/34 ,  F02C7/12 ,  F02C7/26 ,  F05D2220/323 ,  F05D2260/85 ,  H01L23/053 ,  H01L23/08 ,  H01L23/10 ,  H01L23/467 ,  H01L24/32 ,  H01L25/072 ,  H01L25/115 ,  H01L2224/32245 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2224/73265 ,  H01L2224/83801 ,  H01L2224/8384 ,  H01L2924/15724 ,  H01L2924/15747 ,  H02M7/003 ,  H05K5/0247 ,  H05K5/03 ,  H05K5/061 ,  H05K7/20909 ,  H05K7/20927 ,  H01L2924/00

摘要： A power electronics module is provided having one or more power converter semiconductor components. The power electronics module further has a substrate having a first surface to which the one or more components are mounted, and having an opposing second surface from which project a plurality of heat transfer formations for enhancing heat transfer from the substrate. The power electronics module further has a coolant housing which sealingly connects to the substrate to form a void over the heat transfer formations of the second surface. The coolant housing has an inlet for directing a flow of an electrically insulating coolant into the void and an outlet for removing the coolant flow from the void, whereby heat generated during operation of the one or more components is transferred into the coolant flow via the substrate.