Centrifical compressor assembly for a gas turbine engine

A compressor adapted for use in for a gas turbine engine, the compressor comprising

• an impeller arranged circumferentially about an axis and configured to rotate about the axis to compress air,
• a diffuser arranged circumferentially around the impeller to receive the compressed air from the impeller, the diffuser aligned axially with an outer tip of the impeller,
• a deswirler assembly arranged circumferentially about the diffuser and configured to receive the compressed air from the diffuser and to conduct the compressed air into a combustion chamber, the deswirler assembly including
• an outer case that extends radially outward and then turns to extend axially aft,
• an inner case having a curved flowpath wall and a support wall that extends radially inward from the curved flowpath wall, the curved flowpath wall of the inner case spaced apart radially inward from the outer case to define a flow path shaped to conduct the compressed air received from the diffuser radially outward and then turns to conduct the compressed air axially aft, and
• a plurality of vanes that extend radially between and interconnect directly the curved flowpath wall of the inner case and the outer case.

A compressor adapted for use in a gas turbine engine, the compressor comprising

• an impeller arranged circumferentially about an axis and configured to rotate about the axis to compress air,
• a diffuser arranged circumferentially around the impeller to receive the compressed air from the impeller, the diffuser aligned axially with an outer tip of the impeller,
• a deswirler configured to receive the compressed air from the diffuser and to conduct the compressed air into a combustion chamber,
• a case assembly that includes an outer case arranged circumferentially about the axis, an inner combustor case arranged circumferentially around the axis and located radially inward of the outer case to define the combustion chamber radially between the outer case and the inner combustor case, and a plurality of struts that extend radially and axially between and interconnect directly the outer case and the inner combustor case,
• wherein the deswirler includes an annular portion configured to receive the compressed air from the diffuser and a plurality of discrete ducts that extend aft from the annular portion and into openings defined by the plurality of struts.