Labyrinth Seal For A Turbomachine
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United States of America Patent
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Issued Date -
Nov 10, 2011
app pub date -
May 9, 2011
filing date -
May 7, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Labyrinth seal for a turbomachine having a plurality of elongated seal blades arranged along a longitudinal direction of the labyrinth seal next to one another and at a distance from one another so that a chamber is formed between adjacent seal blades. The seal blades each have a free end and at least one seal wall extending in longitudinal direction of the labyrinth seal. A seal gap is formed between each free end and the seal wall, adjacent chambers being in fluid communication with one another by the seal gap so that a working fluid impinging on the labyrinth seal can flow through the labyrinth seal in a throttled manner in a throttling direction proceeding from a first seal blade to a final seal blade. A fluid discharge device is provided that is arranged to bring about a continuous reduction in a specific enthalpy of the working fluid by discharging working fluid from the labyrinth seal along the throttling direction.
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