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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.:

US 12398672 B1

PDFFull Text
Date of Patent:
Aug. 26, 2025

Filed:

Dec. 15, 2023

Aeronautical propulsion system

Applicant:

Safran Aircraft Engines, Paris, FR;

Inventors:

Baptiste Dorian Lawniczek, Moissy-Cramayel, FR;

Didier René André Escure, Moissy-Cramayel, FR;

Alexandre Thanh Nhan Nguyen, Moissy-Cramayel, FR;

Assignee:

SAFRAN AIRCRAFT ENGINES, Paris, FR;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Eric J Zamora Alvarez

Int. Cl.
CPC ...
F02C 6/20 (2006.01); F01D 5/02 (2006.01); F01D 5/06 (2006.01); F01D 5/14 (2006.01); F01D 5/30 (2006.01); F01D 25/00 (2006.01); F02C 3/107 (2006.01);
U.S. Cl.
CPC ...
F02C 6/206 (2013.01); F01D 5/066 (2013.01); F01D 5/142 (2013.01); F01D 5/3007 (2013.01); F01D 25/00 (2013.01); F02C 3/107 (2013.01); F05D 2230/60 (2013.01);
Abstract

An aeronautical propulsion system includes: a drive shaft; a drive turbine; and a fan section. The drive turbine includes a drive turbine stator and a drive turbine rotor. The drive turbine rotor includes a plurality of shrouds, a plurality of turbine disks connected in pairs by a shroud of the plurality of shrouds, and a plurality of turbine blades. At least one shroud connects an upstream turbine disk to a downstream turbine disk of the plurality of turbine disks. The at least one shroud has an outer surface facing the drive turbine stator, and a shroud radius defined as a smallest distance between the longitudinal axis and the outer surface of the shroud. Each of the upstream turbine disk and of the downstream turbine disk is centered on the longitudinal axis and has an outer surface delimiting a plurality of slots distributed about the longitudinal axis.

Find Patent Forward Citations

Lawniczek, Baptiste. (2025). Aeronautical propulsion system (U.S. Patent No. 12398672). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12398672

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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