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:
Feb. 02, 2021
Filed:
Nov. 05, 2018
Rolls-royce North American Technologies Inc., Indianapolis, IN (US);
Rolls-royce Singapore Pte. Ltd., Singapore, SG;
Stephen Andrew Long, Carmel, IN (US);
Andrew Bollman, Plainfield, IN (US);
Michael Adam Zagrodnik, Singapore, SG;
Chandana Jayampathi Gajanayake, Singapore, SG;
ROLLS-ROYCE NORTH AMERICAN TECHNOLOGIES INC., Indianapolis, IN (US);
ROLLS-ROYCE SINGAPORE PTE. LTD., Singapore, SG;
Abstract
Energy storage systems for aircraft and methods of operating the same are provided. The energy storage system may include a main battery, a propulsion power bus, a non-critical bus, a critical bus, and an engine starter bus. The propulsion power bus may be configured to convey electricity, which is supplied by the main battery, to an electric propulsion machine configured to provide propulsion for the aircraft. The non-critical bus may be configured to convey electricity to a hotel load on the aircraft. The critical bus may be configured to convey electricity, which is supplied by the main battery, to a critical load on the aircraft. The engine starter bus may be configured to convey electricity, which is supplied by the main battery, to an electric starter for a gas turbine engine, where the gas turbine engine is configured to power the electric propulsion machine.