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:
Jun. 30, 2015
Filed:
Feb. 07, 2011
Eric Jacques Boston, Cesson, FR;
Michel Andre Bouru, Montereau sur le Jard, FR;
Laurent Jablonski, Melun, FR;
Philippe Gerard Edmond Joly, Vaux le Penil, FR;
Eric Jacques Boston, Cesson, FR;
Michel Andre Bouru, Montereau sur le Jard, FR;
Laurent Jablonski, Melun, FR;
Philippe Gerard Edmond Joly, Vaux le Penil, FR;
SNECMA, Paris, FR;
Abstract
An assembly in a turbine engine for controlling plural toothed pivotally-mounted blades arranged in azimuth around the axis of the turbine engine and including an actuator ring controlling a position of the blades. Racks mounted on the ring present corresponding sets of teeth meshing with the set of teeth of a respective one of the blades to place it in a selected angular position, and they are held in the radial direction by radial positioning mechanism fastened to the blade. Each rack is mounted on the ring by plural guides spaced apart circumferentially around the ring, that connect together movements of the rack and of the ring in the circumferential direction, and that are configured to slide relative to the ring, for each guide in its own radial direction, and relative to the rack in a direction of movement that is substantially radial and specific to the rack.