초록 ▼

A stator assembly 28 for a gas turbine engine 10 is disclosed. The stator assembly includes an inner stator structure 54 and an outer stator structure 52. A plurality of tensioned members 50 extend radially between the structures to stiffen the structures against deflection and to restrain the struc

A stator assembly 28 for a gas turbine engine 10 is disclosed. The stator assembly includes an inner stator structure 54 and an outer stator structure 52. A plurality of tensioned members 50 extend radially between the structures to stiffen the structures against deflection and to restrain the structures against relative movement. In one embodiment, the inner stator structure is an engine casing 54, the outer stator structure 42 is a fan casing, and the radially extending members are a plurality of guide vanes 50.

대표청구항 ▼

In an axial flow turbofan gas turbine engine of the type having an axis Ar and being dividable into four quadrants about the axis Ar, an engine casing extending circumferentially about the axis Ar, a fan casing spaced radially outwardly from the engine casing leaving an annular flow path for working

In an axial flow turbofan gas turbine engine of the type having an axis Ar and being dividable into four quadrants about the axis Ar, an engine casing extending circumferentially about the axis Ar, a fan casing spaced radially outwardly from the engine casing leaving an annular flow path for working medium gases extending circumferentially therebetween, and a plurality of struts extending from the engine casing to the fan casing across the working medium flow path, each strut being attached to the fan casing at one end and to the engine casing at the other end, the improvement which comprises: an array of guide vanes extending radially across the working medium flow path and disposed about the axis Ar such that each quadrant has at least one of said guide vanes disposed in said quadrant, each of said guide vanes being attached to the engine casing and being attached to the fan casing, each of the guide vanes having a free length and having an installed length at installation and under non-operative conditions which is greater than the free length such that under normal operative conditions the guide vanes are placed in tension, the engine casing is placed in tension, and the fan casing is placed in compression.