公开(公告)号：US20180031242A1

公开(公告)日：2018-02-01

申请号：US15637209

申请日：2017-06-29

Applicant: ROLLS-ROYCE plc

Inventor： Stephen C. HARDING ,  Paul A. HUCKER

IPC: F23R3/20 ,  F23R3/60 ,  F23R3/44 ,  F23R3/46 ,  F23R3/08 ,  F23R3/00

CPC classification number: F23R3/20 ,  F23R3/002 ,  F23R3/08 ,  F23R3/44 ,  F23R3/46 ,  F23R3/60 ,  F23R2900/00005

Abstract: A gas turbine engine combustion chamber comprises upstream and downstream ring structures and a plurality of circumferentially arranged combustion chamber segments. Each segment extends the full length of the combustion chamber and each segment is secured to the upstream ring structure and is mounted on the downstream ring structure. The upstream end of each combustion chamber segment comprises a surface having a plurality of circumferentially spaced radially extending holes and the upstream ring structure having a plurality of circumferentially spaced holes extending radially through a portion abutting the surface of the upstream end of each combustion chamber segment. Each combustion chamber segment being removably secured to the upstream ring structure by a plurality of fasteners locatable in the holes in the combustion chamber segment and corresponding holes in the upstream ring structure.

公开(公告)号：US20160097539A1

公开(公告)日：2016-04-07

申请号：US14965968

申请日：2015-12-11

Applicant: ROLLS-ROYCE plc

Inventor： Stephen C. HARDING

IPC: F23R3/34

CPC classification number: F23R3/34 ,  F23R3/28 ,  F23R3/286

Abstract: A combustion chamber including a first fuel injector and a second fuel injector, the first and second fuel injectors being arranged to inject fuel into a mainstream flow of air with the second fuel injector arranged downstream of the first fuel injector. A method of mixing fuel and air in a combustion chamber, including injecting fuel into a mainstream flow of air with a first fuel injector; injecting fuel into the mainstream flow of air with a second fuel injector, which is arranged downstream of the first fuel injector; injecting fuel into the mainstream flow with the first fuel injector such that the resulting mixture between the first and second fuel injectors has an equivalence ratio less than the lean flame stability limit; and injecting fuel into the mainstream flow with the second fuel injector such that a combustion zone is provided downstream of the second fuel injector.

Abstract translation: 一种包括第一燃料喷射器和第二燃料喷射器的燃烧室，所述第一和第二燃料喷射器布置成将燃料喷射到主流的空气流中，而第二燃料喷射器布置在第一燃料喷射器的下游。 一种在燃烧室中混合燃料和空气的方法，包括用第一燃料喷射器将燃料喷射到主流的空气流中; 将燃料喷射到具有第二燃料喷射器的主流空气流中，第二燃料喷射器布置在第一燃料喷射器的下游; 利用第一燃料喷射器将燃料喷射到主流中，使得第一和第二燃料喷射器之间的所得混合物具有小于稀燃火焰稳定极限的当量比; 以及利用第二燃料喷射器将燃料喷射到主流中，使得燃烧区域设置在第二燃料喷射器的下游。

公开(公告)号：US20160097285A1

公开(公告)日：2016-04-07

申请号：US14858490

申请日：2015-09-18

Applicant: ROLLS-ROYCE PLC

Inventor： Stephen C. HARDING ,  Paul A. HUCKER ,  Nicholas WORTH

IPC: F01D5/18 ,  F01D9/06 ,  F23R3/00

CPC classification number: F01D5/186 ,  F01D9/065 ,  F05D2240/81 ,  F05D2260/202 ,  F23R3/002 ,  F23R3/005 ,  F23R2900/03041 ,  F23R2900/03042 ,  F23R2900/03044

Abstract: A cooled gas turbine engine component comprises a wall which has a plurality of effusion cooling apertures extending there-through from a first surface to a second surface. Each aperture has an inlet in the first surface and an outlet in the second surface. Each aperture has a metering portion and a diffusing portion arranged in flow series and each metering portion is elongate and the width is greater than the length of the metering portion. The metering portion of each aperture has a U-shaped bend. The diffusing portion of each aperture is arranged at an angle to the second surface. Each outlet has a rectangular shape in the second surface of the wall. Each inlet has an elongate shape in the first surface of the wall and the inlet in the wall is arranged substantially diagonally with respect to the outlet in the wall.

Abstract translation: 冷却的燃气涡轮发动机部件包括壁，该壁具有从第一表面延伸到第二表面的多个喷射冷却孔。 每个孔具有在第一表面中的入口和在第二表面中的出口。 每个孔具有流量系列布置的计量部分和扩散部分，每个计量部分是细长的，并且该宽度大于计量部分的长度。 每个孔的计量部分具有U形弯曲部。 每个孔的扩散部分以与第二表面成一定角度布置。 每个出口在壁的第二表面中具有矩形形状。 每个入口在壁的第一表面中具有细长形状，并且壁中的入口相对于壁中的出口基本上对角地布置。