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.

Date of Patent:
Jul. 30, 2019

Filed:

Oct. 20, 2016
Applicant:

Rolls-royce Plc, London, GB;

Inventor:
Assignee:

ROLLS-ROYCE plc, London, GB;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 29/54 (2006.01); F02K 3/06 (2006.01); B64D 27/18 (2006.01); F04D 29/32 (2006.01);
U.S. Cl.
CPC ...
F02K 3/06 (2013.01); B64D 27/18 (2013.01); F04D 29/325 (2013.01); F04D 29/542 (2013.01); F04D 29/544 (2013.01); F05D 2220/32 (2013.01); F05D 2240/121 (2013.01); F05D 2250/70 (2013.01); F05D 2250/71 (2013.01); F05D 2250/711 (2013.01); F05D 2250/712 (2013.01);
Abstract

A gas turbine engine comprising a fan, a bypass duct positioned downstream of the fan and defined by an inner casing and an outer casing, a series of outlet guide vanes arranged downstream of the fan, the outlet guide vanes extending between the inner casing and the outer casing of the bypass duct; and a bifurcation positioned downstream of the outlet guide vanes and extending between the inner casing and the outer casing. The bifurcation comprises a leading edge, and the leading edge of the bifurcation is shaped so as to protrude axially forward by a varying distance from the inner casing to the outer casing so as to improve uniformity of a static pressure field formed, in use, immediately upstream of the bifurcation.


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