Rotary kinetic fluid motors or pumps – Method of operation
Reexamination Certificate
2005-07-19
2005-07-19
Nguyen, Ninh H. (Department: 3745)
Rotary kinetic fluid motors or pumps
Method of operation
C415S231000, C415S174200, C415S017000, C415S030000, C277S355000
Reexamination Certificate
active
06918739
ABSTRACT:
A turbine engine has a rotor shaft rotatably carried within a non-rotating support structure. A seal is carried by the support structure circumscribing the shaft and having a flexible sealing element for sealing with the shaft. A chamber is located between the seal and support structure. A fluid is carried within the chamber and damps radial excursion of a seal axis from a support structure axis. The seal may be a full annulus or may be segmented. The fluid may be contained within one or more elastomeric bladders.
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Bachman & LaPointe P.C.
Nguyen Ninh H.
United Technologies Corporation
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