The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 21, 2021
Filed:
Apr. 23, 2019
Rolls-royce Plc, London, GB;
Marko Bacic, Oxford, GB;
ROLLS-ROYCE PLC, London, GB;
Abstract
The present disclosure concerns control a hybrid electric gas turbine system () for an aircraft. The system comprises an electric generator () and a gas turbine () to form a generator system, an electric motor () and a fan () to form a propulsor (), a controller () and an electric storage unit (). After receiving a command for a change in demand for thrust, the controller () determines an operational profile that minimises a function comprising a measure of fuel supplied to the gas turbine (), a transfer of electric power from or to the electric storage unit () and a difference between measures of current and demanded thrust over a time period. The controller then operates the electric motor (), gas turbine () and electric storage unit () according to the determined operational profile over the time period.