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:
Jun. 26, 2018
Filed:
Sep. 26, 2014
Applicant:
Ansaldo Energia Ip Uk Limited, London, GB;
Inventors:
Willy Heinz Hofmann, Baden-Ruetihof, CH;
Philipp Schaefer, Goettingen, DE;
Assignee:
ANSALDO ENERGIA IP UK LIMITED, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 25/30 (2006.01); F02K 1/04 (2006.01); F01D 9/02 (2006.01); F01D 25/28 (2006.01); F02C 7/20 (2006.01);
U.S. Cl.
CPC ...
F01D 25/30 (2013.01); F01D 9/02 (2013.01); F01D 25/28 (2013.01); F02C 7/20 (2013.01); F02K 1/04 (2013.01); F05B 2250/711 (2013.01); F05B 2250/712 (2013.01); F05B 2250/713 (2013.01); F05D 2240/90 (2013.01);
Abstract
An exhaust diffuser for a gas turbine includes an annular duct. A row of struts is arranged in the duct. In a region downstream of the trailing edges of the struts, the cross-sectional area of the duct decreases to a local minimum and then increases again towards the outlet end of the duct. Thereby the gas flow is locally accelerated downstream of the struts. This stabilizes the boundary layer of the flow in this region and leads to a marked increase in pressure recovery for a wide range of operating conditions.