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:
Feb. 10, 1987
Filed:
Jun. 17, 1985
Robert W Cedoz, Indianapolis, IN (US);
General Motors Corporation, Detroit, MI (US);
Abstract
In an aircraft propulsion system including a gas turbine engine driving a pair of counter rotating bladed members through a planetary gear set, a brake for simultaneously retarding rotation of both bladed members after engine shut-down includes a pair of concentric transfer shafts each rotatably connected to separate elements of the planetary gear set, a pair of friction plates supported on respective ones of the transfer shafts for rotation therewith, a plurality of non-rotatable reaction members between the friction plates, and a single actuator selectively operable to compress the stack of friction plates and reaction members to simultaneously retard rotation of both transfer shafts and thereby simultaneously retard rotation of and eventually simultaneously stop both of the counter rotating bladed members.