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:
Jan. 02, 2024
Filed:
Feb. 01, 2019
Rolls-royce Deutschland Ltd & CO KG, Blankenfelde-Mahlow, DE;
Robert Goraj, Erlangen, DE;
Heintje Wyczisk, Erlangen, DE;
Rolls-Royce Deutschland Ltd & Co KG, Blankenfelde-Mahlow, DE;
Abstract
The invention relates to a drive device () for an aircraft, comprising: an electric machine () with a stator () and a rotor () and a cooling device () for cooling the electric machine (), the cooling device () having an encapsulated first cooling region (), in which a first cooling liquid for cooling the stator () and/or the rotor () is disposed, the cooling device () having a second cooling region (), which is separate from the first cooling region () and in which the second liquid is disposed, and the cooling device () having an internal heat exchanger () for transmitting heat from the first cooling liquid to the second cooling liquid.