| 摘要 |
The present application relates to a vane (23) having an integral bent conduit (or pre-swirl nozzle) (39) in its inner platform (33) for conveying and orienting air coming from the internal cooling passage (35) of the vane to a cavity located under said vane. Said pre-swirl nozzle comprises a conical bend (41) that connects a radially outwards facing portion (42to a linear outlet part (36, 43).
A method of forming such a vane is also disclosed. The method comprises investment casting metal (47) around a core member (38) that defines an internal cavity and internal features of the nozzle guide vane, and machining the obtained part to realize the outlet part (36, 43). |
