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:
May. 07, 2019
Filed:
Apr. 26, 2016
Rolls-royce Plc, London, GB;
ROLLS-ROYCE plc, London, GB;
Abstract
A bladed rotor includes rotor disc having a peripheral region, and a plurality of rotor blades attached to and extending radially outwardly from peripheral region. Each rotor blade has a root portion which is located in a correspondingly shaped axially-extending slot provided in the peripheral region of rotor disc, and the root portion of each blade is axially retained in its respective slot by a plate located axially adjacent the root portion and rotor disc, and which extends circumferentially across respective slot. Retention plate is held in position by seal member having a first surface which engages radially-inwardly directed surface of rotor disc, and second surface which is located radially-outwardly of first surface and engages the retention plate. Seal member has a curved profile in radial cross-section so as to define a concavity located radially between first and second engaging surfaces and which is directed axially towards the rotor disc.