Exhaust diffuser including flow mixing ramp for a gas turbine engine
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United States of America Patent
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Aug 25, 2015
Grant Date -
Feb 13, 2014
app pub date -
Oct 15, 2013
filing date -
Oct 19, 2011
priority date (Note) -
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Abstract
A turbine exhaust diffuser for a gas turbine engine. The diffuser includes a flow ramp positioned on an ID flowpath boundary within a flowpath of the diffuser. The flow ramp extends circumferentially about the hub and includes a downstream, radially outward point that extends radially outward further from the ID flowpath boundary than an upstream, radially outward point that is positioned upstream from the downstream, radially outward point. A wavy portion is located at the downstream, radially outward point of the flow ramp. The wavy portion includes a circumferentially extending, undulating surface defined by alternating axially extending crests and troughs.
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