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:
Apr. 27, 2021
Filed:
Feb. 21, 2017
Japan Aerospace Exploration Agency, Chofu, JP;
Yoshine Ueda, Tokyo, JP;
Naoko Tokugawa, Tokyo, JP;
JAPAN AEROSPACE EXPLORATION AGENCY, Tokyo, JP;
Abstract
[Object] To provide a wing achieving reduction of friction drag and easy to design and also easy to manufacture and an aircraft including such a wing. [Solving Means] A wingis typically used as a main wing of an aircraft. The wingis a swept-back wing having a swept-back angle A. The wingis configured such that a surface pressure (pressure distribution (Cp)) on an upper surface of a vicinity of a leading edgein a fluid increases from a wing rootto a wing tip. A cross-flow component of an external streamline of a surface of the wingis reduced in the vicinity of the leading edge, and boundary layer transition is not easily induced in the vicinity of the leading edge. With this, friction drag caused by cross-flow instability can be reduced.