Patents by Inventor Ashog KULATHASAN

Ashog KULATHASAN 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).

  • Aircraft electrically-assisted propulsion control system
    Patent number: 11260983
    Abstract: This invention concerns an aircraft propulsion system in which an engine has an engine core comprising a compressor, a combustor and a turbine driven by a flow of combustion products of the combustor. At least one propulsive fan generates a mass flow of air to propel the aircraft. An electrical energy store is provided on board the aircraft. At least one electric motor is arranged to drive the propulsive fan and the engine core compressor. A controller controls the at least one electric motor to mitigate the creation of a contrail caused by the engine combustion products by altering the ratio of the mass flow of air by the propulsive fan to the flow of combustion products of the combustor. The at least one electric motor is controlled so as to selectively drive both the propulsive fan and engine core compressor.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: March 1, 2022
    Assignee: ROLLS-ROYCE PLC
    Inventors: Peter Swann, Paul Fletcher, Alvise Pellegrini, Ashog Kulathasan
  • AIRCRAFT ELECTRICALLY-ASSISTED PROPULSION CONTROL SYSTEM
    Publication number: 20200010205
    Abstract: This invention concerns an aircraft propulsion system in which an engine has an engine core comprising a compressor, a combustor and a turbine driven by a flow of combustion products of the combustor. At least one propulsive fan generates a mass flow of air to propel the aircraft. An electrical energy store is provided on board the aircraft. At least one electric motor is arranged to drive the propulsive fan and the engine core compressor. A controller controls the at least one electric motor to mitigate the creation of a contrail caused by the engine combustion products by altering the ratio of the mass flow of air by the propulsive fan to the flow of combustion products of the combustor. The at least one electric motor is controlled so as to selectively drive both the propulsive fan and engine core compressor.
    Type: Application
    Filed: August 27, 2019
    Publication date: January 9, 2020
    Applicant: Rolls-Royce plc
    Inventors: Peter Swann, Paul Fletcher, Alvise Pellegrini, Ashog Kulathasan
  • Aircraft electrically-assisted propulsion control system
    Patent number: 10435165
    Abstract: This invention concerns an aircraft propulsion system in which an engine has an engine core comprising a compressor, a combustor and a turbine driven by a flow of combustion products of the combustor. At least one propulsive fan generates a mass flow of air to propel the aircraft. An electrical energy store is provided on board the aircraft. At least one electric motor is arranged to drive the propulsive fan and the engine core compressor. A controller controls the at least one electric motor to mitigate the creation of a contrail caused by the engine combustion products by altering the ratio of the mass flow of air by the propulsive fan to the flow of combustion products of the combustor. The at least one electric motor is controlled so as to selectively drive both the propulsive fan and engine core compressor.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: October 8, 2019
    Assignee: ROLLS-ROYCE PLC
    Inventors: Peter Swann, Paul Fletcher, Alvise Pellegrini, Ashog Kulathasan
  • Aircraft Electrically-Assisted Propulsion Control System
    Publication number: 20180178920
    Abstract: This invention concerns an aircraft propulsion system in which an engine has an engine core comprising a compressor, a combustor and a turbine driven by a flow of combustion products of the combustor. At least one propulsive fan generates a mass flow of air to propel the aircraft. An electrical energy store is provided on board the aircraft. At least one electric motor is arranged to drive the propulsive fan and the engine core compressor. A controller controls the at least one electric motor to mitigate the creation of a contrail caused by the engine combustion products by altering the ratio of the mass flow of air by the propulsive fan to the flow of combustion products of the combustor. The at least one electric motor is controlled so as to selectively drive both the propulsive fan and engine core compressor.
    Type: Application
    Filed: December 19, 2017
    Publication date: June 28, 2018
    Applicant: ROLLS-ROYCE plc
    Inventors: Peter SWANN, Paul FLETCHER, Alvise PELLEGRINI, Ashog KULATHASAN