摘要 |
<p>In prop fan and contra fan gas turbine engines (1, 21) particularly utilised with regard to pusher configurations towards the aft of an aircraft, there is a significant problem with regard to debris and bird strikes resulting in particulate matter which may damage the engine thrust core (2, 23, 35). By providing an inlet rotor (27, 32) which fragments and creates a centrifugal aspect to the inlet flow A, AA, particulate matter can be directed to a bypass chute (28, 33) normally in the form of an annular section extending into a number of chute (45) exits. In such circumstances, the particulate matter is removed continuously from the inlet flow AB and the chutes (28, 33) are normally angled to project any particulate matter towards propellers (25, 26) of the engine at robust positions.</p> |