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Fluid injection system

Image Number 8 for United States Patent #7534088.

In accordance with the present invention, there is provided a system for injecting a secondary fluid stream into a primary fluid stream with improved aerodynamic efficiency. The secondary fluid stream is injected into the primary fluid stream at a tangential angle and radial location that reduces both mixing and endwall losses. A platform borders the primary fluid stream and contains a trailing edge surface. A rail extends radially from the platform and one or more conduits enter the rail in a substantially radial direction. The conduits extend through the radial length of the rail, continue into the platform, and terminate at the trailing edge surface. The secondary fluid stream is conveyed by the conduits through the rail and the platform, to the trailing edge surface, for injecting into the primary fluid stream at an optimal angle and radial location.

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