Rotary kinetic fluid motors or pumps – Method of operation
Reexamination Certificate
2006-07-07
2009-06-23
Verdier, Christopher (Department: 3745)
Rotary kinetic fluid motors or pumps
Method of operation
C415S131000, C415S174100, C415S174200, C415S174400, C415S174500, C415S230000, C415S231000, C277S413000
Reexamination Certificate
active
07549835
ABSTRACT:
A system and method for extending seal life and for reducing leakage flow in a turbine engine is directed to an interface defined between a stationary component and a rotating component. A seal, which can be a flexible seal such as a brush seal, can be operatively attached to the stationary component. The rotating component has a first region at a first radius relative to the axis of rotation that transitions into a second region at a second, larger radius relative to the axis of rotation. In one embodiment, the rotating component can be selectively axially moved between a first position and a second position. In the first position, the seal is disposed over the first region so as to define a clearance. In the second position, the seal is disposed over the second region so as to decrease the size of the clearance.
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Siemens Energy Inc.
Verdier Christopher
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