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:
Sep. 01, 2020
Filed:
Jun. 20, 2018
Applicant:
Rolls-royce Plc, London, GB;
Inventor:
Stephane M M Baralon, Derby, GB;
Assignee:
Rolls-Royce plc, London, unknown;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 5/14 (2006.01); F01D 17/10 (2006.01); F01D 9/04 (2006.01);
U.S. Cl.
CPC ...
F01D 5/145 (2013.01); F01D 5/141 (2013.01); F01D 9/041 (2013.01); F01D 17/105 (2013.01); F05D 2220/32 (2013.01); F05D 2240/12 (2013.01); F05D 2240/20 (2013.01); F05D 2260/213 (2013.01); F05D 2260/606 (2013.01); F05D 2270/17 (2013.01);
Abstract
A slot is provided in an endwall of a flow passage, for example between two stator vanes or rotor blades of a gas turbine engine. The length direction of the flow passage is aligned substantially with the main flow through the flow passage. The alignment of the slot means that the 'over-turned' boundary layer flow can be extracted through the slot but with minimal impact on the mainstream flow.