Fluid reaction surfaces (i.e. – impellers) – Specific working member mount – Blade received in well or slot
Reexamination Certificate
2006-09-12
2006-09-12
Look, Edward K. (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
Specific working member mount
Blade received in well or slot
C416S20400A, C416S248000
Reexamination Certificate
active
07104759
ABSTRACT:
Blades of increased blade angle may be retrofitted onto existing compressor rotor wheels as replacement blades whereby higher performance and efficiency without replacing the rotor wheel may be achieved. The base attachments of replacement blades are provided with lateral extensions or flanges and the rim of the compressor wheel is provided with recesses straddling the grooves to accommodate the flanges. The leading edge of the replacement blade is positioned circumferentially for support only by the platform extension thereby limiting the mean and vibratory stresses in the leading edge of the airfoil and maximizing damage tolerance.
REFERENCES:
patent: 4682935 (1987-07-01), Martin
patent: 5123813 (1992-06-01), Przytulski et al.
patent: 5156528 (1992-10-01), Bobo
patent: 5536143 (1996-07-01), Jacala et al.
patent: 5573377 (1996-11-01), Bond et al.
patent: 5743708 (1998-04-01), Cunha et al.
patent: 5924843 (1999-07-01), Staub et al.
patent: 6019580 (2000-02-01), Barr et al.
patent: 6033185 (2000-03-01), Lammas et al.
patent: 6095750 (2000-08-01), Ross et al.
patent: 6132174 (2000-10-01), Staub et al.
patent: 6183202 (2001-02-01), Ganshaw
patent: 6190131 (2001-02-01), Deallenbach
patent: 6390775 (2002-05-01), Paz
patent: 6402471 (2002-06-01), Demers et al.
patent: 6419753 (2002-07-01), Wheat et al.
patent: 6457942 (2002-10-01), Forrester
patent: 6520836 (2003-02-01), Dean et al.
patent: 6945754 (2005-09-01), DiBella
U.S. Appl. No. 10/422,701, Gautreau et al Undercut Leading Edge for Compressor Blades and Related Method.
U.S. Appl. No 10/327,949, Gautreau et al Compressor Blade with Dovetail Slotted to Reduce Stress on the Airfoil Leading Edge.
Martin, Jr. Nicholas Francis
Tipton Thomas Robbins
General Electric Company
Look Edward K.
Nixon & Vanderhye P.C.
White Dwayne J
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