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. 11, 2022
Filed:
Jun. 27, 2017
Safran Aircraft Engines, Paris, FR;
William Henri Joseph Riera, Moissy-Cramayel, FR;
Jerome Jean-Yves Talbotec, Moissy-Cramayel, FR;
Julien Roger Marcel Marty, Moissy-Cramayel, FR;
SAFRAN AIRCRAFT ENGINES, Paris, FR;
Abstract
Part comprising a wall which comprises a first zone (), a first zone () and the second zone (), a network of riblets being formed on the first zone (), the second zone () and also on the transition zone () so as to reduce the drag of the part when a flow of air flows along said wall; the height, the width and the spacing of the riblets formed on the transition zone () changing along said transition zone () so as to pass from the height, width and spacing of the riblets formed on the first zone at a first end of the transition zone to the height, width and spacing of the riblets formed on the second zone () at a second end of the transition zone (), the transition zone () comprising a central portion on which the riblets comprise on one hand the height and the width that are respectively equal to the height and width of the riblets on the first zone (), and on the other hand a spacing equal to the spacing of the riblets of the second zone ().