초록 ▼

A fluid flow duct of a gas turbine engine, the duct being defined between a fan cowl and a centerbody and there being provided movable flexible members attached to the centerbody, each member being movable within the duct by fluid pressure between a first concave position and a second convex positio

A fluid flow duct of a gas turbine engine, the duct being defined between a fan cowl and a centerbody and there being provided movable flexible members attached to the centerbody, each member being movable within the duct by fluid pressure between a first concave position and a second convex position for varying the cross-sectional flow area of the duct.

대표청구항 ▼

A gas turbine engine comprising: an engine casing and a centrebody comprising two walls defining therebetween a main discharge duct for propulsive gases; means for varying the flow area of said duct comprising a flexible flow area varying member, said member having only two operating positions; mean

A gas turbine engine comprising: an engine casing and a centrebody comprising two walls defining therebetween a main discharge duct for propulsive gases; means for varying the flow area of said duct comprising a flexible flow area varying member, said member having only two operating positions; means for attaching said member to one of said two walls; fluid pressure means for changing the shape of said member between the two operation positions wherein the flow area of said duct is varied; and means defining a recess in said one wall for receiving said member in one of the two operating positions, said member being substantially unstretched in both the operating positions.