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:
Sep. 13, 2022
Filed:
Apr. 24, 2018
Applicant:
Safran Aircraft Engines, Paris, FR;
Inventors:
Baptiste Marie Aubin Pierre Jouy, Moissy-Cramayel, FR;
Josselin Luc Florent Sicard, Moissy-Cramayel, FR;
Mathieu Charles Jean Verdiere, Moissy-Cramayel, FR;
Loïc Fabien François Villard, Moissy-Cramayel, FR;
Assignee:
SAFRAN AIRCRAFT ENGINES, Peris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 11/12 (2006.01); F01D 11/02 (2006.01);
U.S. Cl.
CPC ...
F01D 11/122 (2013.01); F01D 11/02 (2013.01); F05D 2240/55 (2013.01); F05D 2250/283 (2013.01); F05D 2300/611 (2013.01);
Abstract
A sealing device between a rotor part and a stator part, including at least one abradable coating cooperating with at least two upstream and downstream labyrinth seal lips. Axially upstream of the labyrinth seal lips, the sealing device includes a circumferential wall that radially extends beyond the upstream free axial sealing surface of the coating to create, at the free end of the upstream labyrinth seal lip, a separation of the circulating gas.