Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...
Reexamination Certificate
2009-05-15
2011-11-29
Lebentritt, Michael (Department: 2829)
Fluid reaction surfaces (i.e., impellers)
With heating, cooling or thermal insulation means
Changing state mass within or fluid flow through working...
C416S095000, C416S09300R, C416S224000, C416S228000, C416S24100B, C415S115000, C415S116000
Reexamination Certificate
active
08066485
ABSTRACT:
A turbine rotor blade with a single tip rail on the suction side of the blade tip, and in which the pressure side tip edge includes a row of trench film slots that each having side walls that are open on the pressure side wall and extend onto the tip floor and have side walls with a curvature toward the trailing edge of the blade tip. The trench film slots also have a curved inboard surface and a curved outboard surface in which the inboard surface curvature is less than the outboard surface curvature. The tip rail includes a slot opening onto the top surface and extending the length of the tip rail with a row of metering and cooling holes opening into the slot. The metering and cooling holes have a curvature toward the pressure side edge of the tip floor to increase a heat transfer rate form the metal.
REFERENCES:
patent: 3781129 (1973-12-01), Aspinwall
patent: 4589823 (1986-05-01), Koffel
patent: 4940388 (1990-07-01), Lilleker et al.
patent: 5096379 (1992-03-01), Stroud et al.
patent: 5356265 (1994-10-01), Kercher
patent: 5846057 (1998-12-01), Ferrigno et al.
patent: 6364608 (2002-04-01), Brainch et al.
patent: 6494678 (2002-12-01), Bunker
patent: 6514037 (2003-02-01), Danowski et al.
patent: 7021896 (2006-04-01), Dodd
patent: 7249934 (2007-07-01), Palmer et al.
patent: 7845908 (2010-12-01), Liang
patent: 8011889 (2011-09-01), Liang
patent: 2002/0182074 (2002-12-01), Bunker
patent: 2004/0076519 (2004-04-01), Halfmann et al.
patent: 2004/0151587 (2004-08-01), Cunha et al.
patent: 2006/0257256 (2006-11-01), Eastman et al.
patent: 2007/0286729 (2007-12-01), Kopmels
patent: 2009/0175733 (2009-07-01), Poon et al.
patent: 2009/0180861 (2009-07-01), Trindade et al.
patent: 2010/0080711 (2010-04-01), Page et al.
Florida Turbine Technologies, Inc.
Lebentritt Michael
Ryznic John
LandOfFree
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