Patents by Inventor ROLLS-ROYCE PLC

ROLLS-ROYCE PLC has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20130086909
    Abstract: A system for cooling one or more circulating flows of oil, the system including: one or more fuel-oil heat exchangers, the fuel-oil heat exchangers using fuel for an engine to cool at least one of one or more circulating flows of oil; and a fuel return line in flow communication with a point downstream of the fuel-oil heat exchangers and a point upstream of the fuel-oil heat exchangers, wherein the fuel return line is arranged so that at least a portion of the fuel exiting the fuel-oil heat exchangers may be diverted to the point upstream of the fuel-oil heat exchangers. Furthermore, a system for cooling a circulating flow of oil may include one or more fuel-oil heat exchangers and one or more air-fuel heat exchangers, the fuel-oil heat exchangers using fuel to cool the circulating flow of oil and the air-fuel heat exchangers using air to cool the fuel.
    Type: Application
    Filed: October 1, 2012
    Publication date: April 11, 2013
    Applicant: ROLLS-ROYCE PLC
    Inventor: ROLLS-ROYCE PLC
  • Publication number: 20130085069
    Abstract: This invention is a high voltage superconductor switch comprising: a length of superconductor having a switching portion located within an air gap; a magnetic circuit including at least one flux guide having ferrite pole pieces defining an air gap in which a switching portion of a superconductor can reside in use and at least one primary magnetic flux source located within the circuit so as to provide a quenching magnetic field across the air gap via the ferrite pole pieces.
    Type: Application
    Filed: September 19, 2012
    Publication date: April 4, 2013
    Applicant: ROLLS-ROYCE PLC
    Inventor: ROLLS-ROYCE PLC
  • Publication number: 20130083443
    Abstract: A magnetic shielding arrangement, including: at least one magnetic flux source; a superconductor magnetic shield at least partially surrounding the magnetic flux source; a second shield at least partially surrounding the superconductor magnetic shield.
    Type: Application
    Filed: September 26, 2012
    Publication date: April 4, 2013
    Applicant: ROLLS-ROYCE PLC
    Inventor: ROLLS-ROYCE PLC
  • Publication number: 20130082518
    Abstract: This invention relates to a superconducting electrical network, comprising: an electrical system including a plurality of superconducting electrical equipment; a cryogenic system including one or more refrigeration units for providing coolant to the plurality of superconducting electrical equipment; a controller configured to control the flow of coolant to the plurality of superconducting electrical equipment, wherein the controller is configured to isolate the supply of refrigerant to one or more of the plurality of electrical equipment upon demand and increase the flow of coolant to one or more of the non-isolated plurality of electrical equipment.
    Type: Application
    Filed: September 24, 2012
    Publication date: April 4, 2013
    Applicant: ROLLS-ROYCE PLC
    Inventor: ROLLS-ROYCE PLC
  • Publication number: 20130084170
    Abstract: A clamp suitable for use in an anti-icing system of a gas turbine engine is provided is disclosed. The clamp has a clasping portion for clasping a heating element. Two resilient arms extend from the clasping portion to a substantially rigid outer collar. Translational movement of the clasping portion, which may be created by radial expansion of an annular heating element being clasped thereby, can be accommodated by the clamp by elastic deformation of the resilient arms. This allows radial expansion of the heating element to be accommodated without relative rotation between the clasping portion and the heating element.
    Type: Application
    Filed: October 4, 2012
    Publication date: April 4, 2013
    Applicant: ROLLS-ROYCE PLC
    Inventor: ROLLS-ROYCE PLC
  • Publication number: 20130084167
    Abstract: A rotor blade 2 for a gas turbine engine, comprising a blade tip 4. At least a portion of the blade tip 4 is provided with a wear-resistant coating 16, 18 comprising magnesium aluminate spinel.
    Type: Application
    Filed: September 24, 2012
    Publication date: April 4, 2013
    Applicant: ROLLS-ROYCE PLC
    Inventor: ROLLS-ROYCE PLC
  • Publication number: 20130038057
    Abstract: A gas turbine engine arrangement comprises a core engine, a power turbine and a propulsor. The core engine comprises at least one compressor and at least one turbine arranged to drive the at least one compressor and the core engine is arranged in a casing. The power turbine is positioned downstream of the at least one turbine and the power turbine is arranged to drive the propulsor. An electrical machine is arranged upstream of the at least one compressor. The electrical machine comprises a stator and a rotor and the electrical machine comprises a motor/generator. A first clutch selectively connects the rotor of the electrical machine to the power turbine and a second clutch selectively connects the rotor of the electrical machine to the at least one compressor of the core engine.
    Type: Application
    Filed: October 15, 2012
    Publication date: February 14, 2013
    Applicant: ROLLS-ROYCE PLC
    Inventor: ROLLS-ROYCE PLC