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:
Jul. 06, 1993
Filed:
Dec. 19, 1991
Applicant:
Inventors:
John D Kernon, Clevedon, GB;
Kenneth R Langley, Gloucestershire, GB;
Assignee:
Rolls-Royce plc, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D / ;
U.S. Cl.
CPC ...
415115 ; 415116 ; 415914 ;
Abstract
A cooling air pick up for use in a gas turbine engine includes a cooling air duct incorporating a diffuser to maximize the cooling air pressure. The entry orifice of the pick up duct is formed in the leading edge of a flow vane in the interior of a flow passage downstream of the engine compressor section.