Patents Assigned to Rolls-Royce Controls and Data Services Limited
  • Fault tolerant electric drive system
    Patent number: 8823332
    Abstract: A fault tolerant electric drive system includes an alternator, a motor controller and an electric motor, wherein the alternator and motor each have a plurality of corresponding independent phase windings, the motor controller having a plurality of independent phase drives corresponding to the phase windings, and a plurality of independent electric drive phases is defined by connecting each corresponding phase winding of the alternator and motor to a corresponding phase drive of the motor controller.
    Type: Grant
    Filed: January 10, 2013
    Date of Patent: September 2, 2014
    Assignee: Rolls-Royce Controls and Data Services Limited
    Inventor: Peter Douglas Smout
  • Staging valve arrangement and valve for use therein
    Patent number: 8739544
    Abstract: A staging valve arrangement is described that comprises an arrangement of electrically driven staging valves that are located, in use, in the high temperature core zone of an engine. Each staging valve may comprise a housing having an inlet, a pilot flow outlet and a mains flow outlet, a valve member movable between a closed position in which the mains flow outlet is closed and an open position in which the mains flow outlet is open, a motor operable to drive the valve member for movement, and a cooling arrangement.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: June 3, 2014
    Assignee: Rolls-Royce Controls and Data Services Limited
    Inventors: Neil Rawlinson, Michael Robert Lyons, William Keith Bradbury, Laurence Alden, Blair Ramsay, Mark Scully
  • Shut-down arrangement
    Patent number: 8733398
    Abstract: A shut-down arrangement comprises a shut-off actuation device operable under the control of a control unit, a switch whereby a first shut-down signal can be supplied to the control unit and whereby a second shut-down signal can be supplied to the shut-off actuation device, and delay means whereby the transmission of the second shut-down signal to the shut-off actuation device is delayed relative to the transmission of the first shut-down signal to the control unit.
    Type: Grant
    Filed: May 11, 2010
    Date of Patent: May 27, 2014
    Assignee: Rolls-Royce Controls and Data Services Limited
    Inventor: Nigel Herbert Henson