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. 28, 2022
Filed:
Dec. 01, 2020
Pratt & Whitney Canada Corp., Longueuil, CA;
Daniel Poick, Brampton, CA;
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Abstract
A variable guide vane (VGV) assembly for a gas turbine engine has: vanes distributed about a central axis and having airfoils between stems at respective ends of the airfoils; a unison ring; sliders protruding from the unison ring; and vane arms engaged to first stems and defining respective slots, each of the slots extending in a direction having a radial component relative to a respective one of the spanwise axes, the sliders received within respective ones of the slots, a slot extending from a proximal end to a distal end along a slot axis, the vane arm defining the slot having an end wall at the distal end, the end wall extending in a direction having a component transverse to the slot axis such that a slider abuts against the end wall when the slider is at the distal end to prevent the sliders from moving out of the slots.