Patent ID: 11965459
Assignee: PRATT & WHITNEY CANADA CORP.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 9:
10. A gas turbine engine, comprising:
an axial centerline;
at least one compressor rotor stage having a first bladed rotor rotatable about the axial centerline;
at least one turbine rotor stage having a second bladed rotor rotatable about the axial centerline; and
an air intake plenum in communication with the at least one compressor rotor stage, the air intake plenum including:
a first gas path surface;
a second gas path surface, spaced apart from the first gas path surface, wherein the first gas path surface and the second gas path surface define at least a portion of a plenum interior configured for air passage; and
a plurality of struts that extend lengthwise between the first gas path surface and the second gas path surface through the plenum interior, each strut having a cross-section geometry within a plane perpendicular to a lengthwise axis of the strut, the cross-section geometry having a center, a major axis and a minor axis, where the major axis is greater than the minor axis;
wherein the plurality of struts are disposed circumferentially spaced apart from one another within the air intake plenum; and
wherein the plurality of struts includes a first strut and a second strut, and the first strut is oriented at a clocking angle theta1, wherein said clocking angle theta1 is disposed between the major axis of the first strut and a first line that intersects the cross-section geometry center of the first strut and the axial centerline, and the second strut is oriented at a clocking angle theta2, wherein said clocking angle theta2 is disposed between the major axis of the second strut and a second line that intersects the cross-section geometry center of the second strut and the axial centerline, wherein said clocking angle theta1 that is greater than zero and said clocking angle theta2 that is greater than zero, and said clocking angle theta2 is greater than said clocking angle theca1.