Eductor swirl buster
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United States of America Patent
Stats
-
Mar 10, 2009
Grant Date -
Apr 26, 2007
app pub date -
Oct 25, 2005
filing date -
Oct 25, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A system is provided in an aircraft that includes a power unit and an eductor. The power unit has a nozzle, and is configured to exhaust gas, a portion of which flows in a swirling motion, through the nozzle. The eductor communicates with the power unit and includes a housing and a plurality of flow straighteners. The housing has an inlet, an outlet, and an inner peripheral surface that defines a flow passage. The inlet is configured to surround at least a portion of the nozzle and to receive the gas, and the outlet is configured to exhaust the gas. The plurality of flow straighteners extend radially inwardly from the housing inner surface into the flow passage and are configured to reduce swirl motion of the gas that flows therethrough. The power unit may be an auxiliary power unit or a turboshaft engine.
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