Rotary kinetic fluid motors or pumps – With means for re-entry of working fluid to blade set – Re-entry working fluid joins inlet working fluid upstream of...
Reexamination Certificate
2008-06-02
2011-11-08
Nhu, David (Department: 2895)
Rotary kinetic fluid motors or pumps
With means for re-entry of working fluid to blade set
Re-entry working fluid joins inlet working fluid upstream of...
C415S057400, C415S058700
Reexamination Certificate
active
08052375
ABSTRACT:
Disclosed is a seal for turbomachinery including a seal face locatable between a first turbomachinery component and a second turbomachinery component. At least one fluid channel extends through the seal. The at least one fluid channel is capable of injecting fluid flow between the first turbomachinery component and the second turbomachinery component at the seal face thereby disrupting a leakage flow between the first turbomachinery component and the second turbomachinery component. Further disclosed is a turbomachine utilizing the seal.
REFERENCES:
patent: 5282718 (1994-02-01), Koff et al.
patent: 5308225 (1994-05-01), Koff et al.
patent: 5431533 (1995-07-01), Hobbs
patent: 5474417 (1995-12-01), Privett et al.
patent: 5607284 (1997-03-01), Byrne et al.
patent: 2006/0110247 (2006-05-01), Nelson et al.
Bruce Kevin L.
Cerretelli Ciro
Tourigny John Ernest
Turnquist Norman Arnold
Cantor & Colburn LLP
General Electric Company
Nhu David
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