	US 7,481,059 B2
	Method and apparatus for providing an afterburner fuel-feed arrangement
Stefan Andersson, Grastorp (Sweden); Patrik Bäckander, Trollhättan (Sweden); Hans Falk, Trollhättan (Sweden); Klas Lindblad, Trollhättan (Sweden); and Hakan Schmidt, Trollhättan (Sweden)
Assigned to Volvo Aero Corporation, Trollhattan (Sweden)
Filed on Dec. 21, 2004, as Appl. No. 10/905,205.
Claims priority of provisional application 60/522205, filed on Aug. 31, 2004.
Claims priority of provisional application 60/601011, filed on Aug. 12, 2004.
Prior Publication US 2006/0032231 A1, Feb. 16, 2006
Int. Cl. F02K 3/10 (2006.01)

U.S. Cl. 60—761 [60/766]

15 Claims

1. An elongate, elliptically-shaped shroud for an afterburner fuel-feed arrangement, the elliptical shape of the shroud defining major and minor axes, said shroud being configured to surround at least one elongate fuel pipe and having interior lateral sidewalls spaced apart from each other along the minor axis of the ellipse and at least one of said interior lateral sidewalls including a pipe-receiving portion having a groove formed therein and configured to abuttingly engage a corresponding shroud-engaging portion of an exterior surface of an engaged elongate fuel pipe, said pipe-receiving portion being configured to maintain the position of an engaged elongate fuel pipe relative to said shroud;

wherein the shroud has sufficient thermal strength to withstand the operating temperature within the afterburner section of a jet engine; and

wherein said pipe-receiving portion comprises two parallel elongate raised-ridge portions which define said groove between them and which are mutually configured to accommodate said fuel pipe therebetween.