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:
Nov. 27, 2018
Filed:
Mar. 31, 2017
General Electric Company, Schenectady, NY (US);
Brandon Wayne Miller, Liberty Township, OH (US);
Randy M. Vondrell, Cincinnati, OH (US);
Patrick Michael Marrinan, Mason, OH (US);
Paul Robert Gemin, Cincinnati, OH (US);
Nicholas Taylor Moore, Cincinnati, OH (US);
General Electric Company, Schenectady, NY (US);
Abstract
An aeronautical propulsion system includes a fan having a plurality of fan blades rotatable about a central axis and defining a fan pressure ratio, FPR. The propulsion system also includes an electric motor mechanically coupled to the fan for driving the fan, the electric motor including a number of poles, n, and defining a maximum power, P. The relationship between the fan pressure ratio, FPR, of the fan, the number of poles, n, of the electric motor, and the maximum power, P, of the electric motor is defined by an equation: wherein Cis a constant having a value between 22,000 and 52,000, wherein Cis a constant having a value between 4.0 and 9.8, and wherein e is Euler's number.