Patent ID: 7698896
Filing Date: 2010-04-20
Classification: B64D,F01D,F02C,Y02T

Abstract:
1. An eductor assembly comprising: a primary nozzle configured to accelerate and discharge turbine exhaust gas therefrom, the primary nozzle disposed about a longitudinal axis; a cooler plenum surrounding a circumference of the primary nozzle and including at least a fluid inlet and a fluid outlet, the cooler plenum disposed at an axial location and extending along the longitudinal axis, the cooler plenum fluid inlet disposed radially outwardly of a first angular location on the circumference; and a surge plenum surrounding only a first portion of the circumference of the primary nozzle and the cooler plenum and extending along the longitudinal axis at the axial location of the cooler plenum, the surge plenum including at least a fluid inlet and a fluid outlet, the surge plenum fluid inlet disposed radially outwardly of a second angular location on the circumference that is different from the first angular location, the surge plenum fluid outlet axially aligned and coterminous with the cooler plenum fluid outlet, wherein: the cooler plenum is configured to have a plurality of cooler plenum radial heights each located at angular locations around the circumference of the nozzle, the cooler plenum radial heights decreasing in size as a distance from the cooler plenum fluid inlet increases, and the surge plenum is configured to have a plurality of surge plenum radial heights each located at angular locations around the first portion of the circumference of the nozzle, the surge plenum radial heights decreasing in size as a distance from the surge plenum fluid inlet increases.