Centrifugal compressor hub containment assembly

Details Centrifugal compressor hub containment assembly Centrifugal compressor hub containment assembly

F - Mech Eng,Light,Heat,Weapons

01

D

F01D 21/00 (2006.01) F01D 25/24 (2006.01) F02C 3/08 (2006.01)

Patent

CA 2521148

To contain high energy fragments generated by a hub burst, a compressor containment assembly in a gas turbine engine includes a diffuser housing having an arcuate portion that defines a channel which traps the high energy fragments and an axial facing U-shaped portion which imparts flexibility. The assembly also includes a concave back shroud having a series of grooves that create resistance for the fragments as they slide along its surface. At its radial outer end the back shroud has an annular rim that absorbs some of the energy and delays the shearing of bolts. A bumper is disposed between the back shroud and a turbine wheel to limit the deflection of the back shroud during a hub burst.

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