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. 10, 2019
Filed:
Aug. 05, 2014
Snecma, Paris, FR;
Belmonte Olivier, Moissy-Cramayel, FR;
Didier Rene Andre Escure, Moissy-Cramayel, FR;
Jeremy Phoria Lao, Moissy-Cramayel, FR;
SAFRAN AIRCRAFT ENGINES, Paris, FR;
Abstract
The assembly () links a static housing () of the turbomachine, into which supply lines, in particular fluid supply lines (), arrive, to the blades of the propeller, and comprises: —a system for controlling fluid pitch (), rigidly connected to the static housing (), capable of being linked to the supply lines, —a linear actuator () having two chambers separated by a piston () of which the sliding is dictated by the control system and allows the blades to rotate, and —two concentric tubes () housed in the planetary shaft of the epicyclic reduction gear and linking the system () to the actuator () by delimiting two fluid passages () linked, respectively, with the two chambers () of the actuator.