Compact bleed valve assemblies

Abstract

Compact bleed valve assemblies are disclosed. An example turbine engine comprises a rotor blade having an axial chord (C) measured at a tip of the rotor blade, and a variable bleed valve (VBV) including a VBV port defining a bleed flowpath and an exit angle (βexit) for bleed air exiting the VBV port, the VBV port including a forward entrance edge and an aft exit edge and a first length (LA) therebetween, and a VBV door corresponding to the VBV port, the VBV door to generate a bleed cavity having a bleed cavity area (BA) in the VBV port when the VBV is in a closed position, the VBV door to move between an open position and the closed position at a rotation angle (Δθ), the VBV door to extend a distance (LAact) beyond the first length (LA), wherein L ⁢ A + L ⁢ A a ⁢ c ⁢ t C - 2 * ( B ⁢ V ⁢ I ⁢ P + 0 . 1 ⁢ 5 ) - 1 . 3 ⁢ 5 ≤ - 0.8 , and wherein B ⁢ V ⁢ I ⁢ P = 0 . 1 ⁢ 5 * B ⁢ A C 2 + 0 . 8 ⁢ 5 * Δ ⁢ θ + β e ⁢ x ⁢ i ⁢ t 2 ⁢ π .

Dependencies are inferred from the claim text.