Originally Posted by
Ascend Charlie
not sure if you are talking about the bleed valve either. .
No, he's asking about the port on the front of the C30 compressor housing that usually has a hose connected to it and vents overboard through a small scoop on the engine cowl. In very simplistic terms, think of the inducer port as a calibrated bleed orifice that reduces compressor surge between ground/flight idle and increases compressor efficiency. Where the inducer provides both compressor intake and discharge, the bleed valve only controls compressor discharge air. However, the inducer port falls more under the internal magic of a turbine vs the any external scenario other than when you see oil misting out the inducer vent hose fitting. Then you got a problem.