Axi-centrifugal compressor with variable outlet guide vanes

A compressor comprising:

• an outer skirt of a casing of the compressor;
• an outlet guide vane;
• an extended trunnion coupled to the outlet guide vane, the extended trunnion extending at least partially through the outer skirt;
• an actuator arm coupled to a distal end of the extended trunnion;
• and
• an actuator coupled to the actuator arm via a set of mechanical linkages, at least one of the actuator, the set of mechanical linkages, or the actuator arm disposed outside of the outer skirt, wherein the set of mechanical linkages crosses through the outer skirt of the casing, enabling direct actuation of an outlet guide vane.

A gas turbine engine comprising:

• a compressor including:
• a casing having a main portion and an outer skirt collectively defining an annular plenum;
• an outlet guide vane coupled to the main portion;
• an actuator mounted outside the outer skirt;
• and
• a linkage coupled to the actuator and the outlet guide vane through the annular plenum, the linkage to enable direct actuation of the outlet guide vane;
• a combustor disposed downstream of the compressor;
• a turbine disposed downstream of the combustor;
• and
• a shaft interconnecting the turbine and the compressor.