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。