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.

Date of Patent:
Mar. 11, 2025

Filed:

Jun. 13, 2022
Applicant:

Safran Aircraft Engines, Paris, FR;

Inventors:

Christophe Marcel Lucien Perdrigeon, Moissy-Cramayel, FR;

Clement Cottet, Moissy-Cramayel, FR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 7/00 (2006.01); B64C 11/32 (2006.01); F01D 9/04 (2006.01);
U.S. Cl.
CPC ...
F01D 7/00 (2013.01); B64C 11/32 (2013.01); F01D 9/041 (2013.01); F05D 2260/50 (2013.01); F05D 2260/70 (2013.01);
Abstract

A system for changing the pitch of the blades of a turbomachine propeller, each blade being mounted so as to pivot about a pitch axis, the system including a control means and a connection mechanism connecting the control means to each blade of the propeller, the connection mechanism including, for each blade of the propeller: —a connecting rod having a first end connected to the control means; and —an eccentric having a first end connected to the blade in order to rotate same about its pitch axis and a second end forming a yoke connected to a second end of the connecting rod by a pivot connection; the yoke of the eccentric being oriented towards the pitch axis of the blade.


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