Invention Grant
US08647057B2 Turbine exhaust diffuser with a gas jet producing a coanda effect flow control 有权
带喷气发动机的涡轮排气扩散器产生共流效应流量控制

Turbine exhaust diffuser with a gas jet producing a coanda effect flow control
Abstract:
An exhaust diffuser system and method for a turbine engine includes an inner boundary and an outer boundary with a flow path defined therebetween. The inner boundary is defined at least in part by a hub structure that has an upstream end and a downstream end. The outer boundary may include a region in which the outer boundary extends radially inward toward the hub structure and may direct at least a portion of an exhaust flow in the diffuser toward the hub structure. The hub structure includes at least one jet exit located on the hub structure adjacent to the upstream end of the tail cone. The jet exit discharges a flow of gas substantially tangential to an outer surface of the tail cone to produce a Coanda effect and direct a portion of the exhaust flow in the diffuser toward the inner boundary.
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