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:
May. 18, 2021
Filed:
Apr. 09, 2018
Safran Aircraft Engines, Paris, FR;
Florent Combier, Moissy-Cramayel, FR;
Jean-Claude Belouar, Moissy-Cramayel, FR;
Pauline Anne Freche, Moissy-Cramayel, FR;
Eric Jean-Paul Guinoiseau, Moissy-Cramayel, FR;
Cedric Louis Joseph Laurent, Moissy-Cramayel, FR;
SAFRAN AIRCRAFT ENGINES, Paris, FR;
Abstract
The invention relates to a diffuser () of a radial or hybrid compressor () comprising an internal shroud (), an external shroud () and a series of vanes (), the trailing edge () of each vane () being curved in such a way that a distance (di) between the leading edge () and the trailing edge () of the vane () at the mid-height point (h/) of the vane () is 5% to 15% shorter than a distance (d) between the leading edge () and the trailing edge () of the vane () at the level of the internal shroud (), the trailing edge () also having an evolving cross section comprising a first part forming a low wall () in the vicinity of the external shroud () and having a height (H) equal to at most 10% of the height (h) of the vane (), a curved second part and a third part forming a low wall () substantially identical to the first part.