Heated inlet guide vane

An inlet guide vane of a gas turbine engine, comprising:

• a body including a first end, a second end, an outer surface, a leading edge and a trailing edge,
• the body further including an elongated inlet cavity extending between the first end and the second end, the body further including an elongated outlet cavity extending between the first end and the second end and located between the inlet cavity and the leading edge, the inlet cavity being separated from the outlet cavity by an inner wall,
• the inner wall including a plurality of impingement holes providing communication between the inlet cavity and the outlet cavity, the body further including a plurality of bleed holes providing communication between the outlet cavity and the outer surface of the body, the impingement holes being longitudinally offset from the bleed holes, and
• the inlet cavity in communication with a source of heated air;
• and
• wherein the plurality of bleed holes and the plurality of impingement holes are located such that heated air travelling from the inlet cavity to the outlet cavity through the inner wall via at least one of the plurality of impingement holes will exit from the outlet cavity through one of the plurality of bleed holes prior to it travelling along the entire length of the outlet cavity and wherein airflow into the outer cavity and out of the outer cavity is only provided by the plurality of impingement holes and the plurality of bleed holes.

A gas turbine engine, comprising:

• a compressor section including a fan, the fan being surrounded by a case, the fan being connected to a nose, the nose being connected to the case by a plurality of inlet guide vanes,
• each inlet guide vane including a body including a first end, a second end, an outer surface, a leading edge and a trailing edge,
• the body further including an inlet cavity extending between the first and second ends, the body further including an outlet cavity extending between the first and second ends and located between the inlet cavity and the leading edge,
• the body further including an inner wall disposed between the inlet cavity and the outlet cavity, the inner wall separating the inlet cavity from the outlet cavity and the inner wall including a plurality of impingement holes providing communication between the inlet cavity and the outlet cavity,
• the body further including a plurality of bleed holes providing communication between the outlet cavity and the outer surface of the body, and
• the inlet cavity in communication with a source of heated air;
• and
• wherein the plurality of bleed holes and the plurality of impingement holes are located such that heated air travelling from the inlet cavity to the outlet cavity through the inner wall via at least one of the plurality of impingement holes will exit from the outlet cavity through one of the plurality of bleed holes prior to it travelling along the entire length of the outlet cavity and wherein airflow into the outer cavity and out of the outer cavity is only provided by the plurality of impingement holes and the plurality of bleed holes.