US 11,680,486 B2
Electric turbomachine
Chloe J. Palmer, Derby (GB); and Vladimir A. Shirokov, Derby (GB)
Assigned to Rolls-Royce plc, London (GB)
Filed by ROLLS-ROYCE plc, London (GB)
Filed on Feb. 3, 2020, as Appl. No. 16/779,712.
Claims priority of application No. 1902095 (GB), filed on Feb. 15, 2019.
Prior Publication US 2020/0263545 A1, Aug. 20, 2020
Int. Cl. F01D 15/10 (2006.01); F01D 1/26 (2006.01); F01D 15/12 (2006.01); F04D 19/02 (2006.01); F02K 3/072 (2006.01); H02K 7/18 (2006.01)
CPC F01D 1/26 (2013.01) [F01D 15/10 (2013.01); F01D 15/12 (2013.01); F02K 3/072 (2013.01); F04D 19/024 (2013.01); H02K 7/1823 (2013.01); F05D 2250/44 (2013.01); F05D 2260/40311 (2013.01)] 9 Claims
OG exemplary drawing
 
1. Turbomachinery comprising:
first and second sets of rotors of a contra-rotating compressor configured to operate on a working fluid;
combustion equipment configured to mix fuel with the working fluid and combust a mixture of the working fluid and the fuel;
first and second sets of electric motors coupled to the respective first and second rotors;
a common motor controller configured to:
control the first set of electric motors to impart rotational force on the first rotors; and
control the second set of electric motors to impart rotational force on the second rotors; and
a coupling arrangement arranged to couple adjacent rotors of the first and second sets of rotors to provide for fixed ratio synchronized contra-rotation of the first and second sets of rotors.