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:
Jun. 15, 2016
The Boeing Company, Chicago, IL (US);
John Ralph Hull, Sammamish, WA (US);
Minas H. Tanielian, Bellevue, WA (US);
The Boeing Company, Chicago, IL (US);
Abstract
An airfoil comprises a skin, comprising an external surface and an internal surface. The skin has a controlled region. The airfoil also comprises an interior space, formed by the skin. The airfoil additionally comprises a hybrid acoustic induction-heating system, configured to impede formation of ice on the external surface. The hybrid acoustic induction-heating system comprises induction coils and a control system. Each one of the induction coils has a portion, arranged sufficiently close to the internal surface to produce an eddy current within the controlled region. The control system is configured to generate inductive heat and traveling-wave acoustic pressure in the controlled region by supplying different phases of the alternating electrical current to the induction coils based, at least in part, on an ambient temperature of a layer of fluid flowing over the external surface.