Compressor casing assembly

A bleed air system for a gas turbine engine comprising:

• an annular outer casing having at least one outlet duct;
• an annular inner casing disposed co-axially with the outer casing and spaced radially inwardly therefrom;
• radial disks extending from the outer casing toward the inner casing and defining a plenum;
• an aft compressor cone extending from the outer casing to the inner casing to support the casings;
• a plurality of bleed openings located in the inner casing for imparting a radial velocity to the bleed air which is greater than the circumferential velocity of the bleed air entering the plenum, whereby the high velocity bleed air impinges on the outer casing and prevents distortion of the outer casing by reducing a circumferential temperature gradient forming at the outer casing as the bleed air exits the outlet duct.
• an air tube located within the plenum over each bleed opening for directing the bleed air toward the outer casing;
• and
• a baffle plate located over said air tube for engaging the radial discs.