DIFFUSER PIPE WITH NON-AXISYMMETRIC END WALL

摘要

A compressor diffuser for a gas turbine engine comprises a plurality ofdiffuser pipeshaving a tubular body. The pipes have a first portion having a radialcomponent anddefining a throat at a location along the first portion, a second portionhaving an axialcomponent, and a curved portion fluidly linking the first portion and thesecond portion.The first portion has an inner surface with a local surface contour locatedbetween thethroat and the curved portion. The local surface contour extends along aportion of andaround less than an entire perimeter of the first portion.