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:
Jan. 13, 2015
Filed:
Feb. 12, 2010
Zahid M Hussain, Derby, GB;
Jonathan G Bird, Derby, GB;
Zahid M Hussain, Derby, GB;
Jonathan G Bird, Derby, GB;
Rolls-Royce PLC, London, GB;
Abstract
A flow discharge device, such as a compressor bleed outlet discharging into a bypass duct of a gas turbine engine, comprises an outlet panelwhich is perforated by openingsdisposed in an array which tapers in the downstream direction with respect to the flow B in the bypass duct. The configuration of the array of openingscreates a plumeof tapering form, which enables the bypass flow B to come together downstream of the plumewith minimal wake generation, to provide a shield of cooler air so as to avoid contact between the hot gas plumeand a wall ofof the bypass duct. The resulting aerofoil-shaped cross section of the plumealso reduces any blocking effect in the bypass duct, with consequent performance benefits for the engine fan.