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:
Dec. 16, 2008
Filed:
Mar. 14, 2006
Jeffrey Alison Dixon, Littleover, GB;
Ivan Lars Brunton, Littleover, GB;
Timothy John Scanlon, Sunnyhill, GB;
Guy David Snowsill, Belper, GB;
Jeffrey Alison Dixon, Littleover, GB;
Ivan Lars Brunton, Littleover, GB;
Timothy John Scanlon, Sunnyhill, GB;
Guy David Snowsill, Belper, GB;
Rolls-Royce plc, London, GB;
Abstract
It is known there is ingestion of hot gas flowfrom an annular flowin gas turbine engines. This flowis prevented from attaching to the disc by coolant flowpassing through gaps in lock platesby creation of a barrier layer. In order to regulate and enhance this effect spacer protrusionsare provided between ends of lock plates. In such circumstances the gapis controlled and therefore the rate of leakage flowregulated for best cooling effect. This cooling effect and cooling flowcan be further enhanced by providing chutesfor presentation of the coolant flow