Rotary kinetic fluid motors or pumps – Working fluid passage or distributing means associated with... – Plural distributing means immediately upstream of runner
Reexamination Certificate
2007-05-22
2007-05-22
Kershteyn, Igor (Department: 3745)
Rotary kinetic fluid motors or pumps
Working fluid passage or distributing means associated with...
Plural distributing means immediately upstream of runner
C415S914000, C416S19300A
Reexamination Certificate
active
11106198
ABSTRACT:
A turbine stage includes a row of airfoils joined to corresponding platforms to define flow passages therebetween. Each airfoil includes opposite pressure and suction sides and extends in chord between opposite leading and trailing edges. Each platform includes a crescentic ramp increasing in height from the leading and trailing edges toward the midchord of the airfoil along the pressure side thereof.
REFERENCES:
patent: 2735612 (1956-02-01), Hausmann
patent: 4194869 (1980-03-01), Corcokios
patent: 4384822 (1983-05-01), Schweikl et al.
patent: 4778338 (1988-10-01), Bessay
patent: 4832567 (1989-05-01), Bessay
patent: 5397215 (1995-03-01), Spear et al.
patent: 5954475 (1999-09-01), Matsuura et al.
patent: 6017186 (2000-01-01), Hoeger et al.
patent: 6283713 (2001-09-01), Harvey et al.
patent: 6338609 (2002-01-01), Decker et al.
patent: 6341939 (2002-01-01), Lee
patent: 6354797 (2002-03-01), Heyward et al.
patent: 6419446 (2002-07-01), Kvasnak et al.
patent: 6511294 (2003-01-01), Meilke et al.
patent: 6561761 (2003-05-01), Decker et al.
patent: 6669445 (2003-12-01), Staubach et al.
patent: 6785961 (2004-09-01), Caddell et al.
patent: 6837679 (2005-01-01), Kawarada et al.
patent: 6969232 (2005-11-01), Zess et al.
patent: 7134842 (2006-11-01), Tam et al.
patent: 2004/0081548 (2004-04-01), Zess et al.
patent: 229266 (1944-01-01), None
patent: 1602965 (1971-04-01), None
patent: 58-32903 (1983-02-01), None
Patent Abstract of Japan, vol. 007, No. 112 (M-215), May 17, 1983, European Patent Office, publication No. 58032903, pub. Date Feb. 26, 1983, single page.
Harvey et al, “Non-Asxisymmetric Turbine End Wall Design: Part 1 Three Dimensional Linear Design System,” ASME 99-GT-337, Jun. 1999, pp. 1-9.
U.S. Appl. No. 11/010,688, filed Dec. 13, 2004, “Fillet Energized Turbine Stage,” Ching-Pang Lee [GE158088].
U.S. Appl. No. 11/022,121, filed Dec. 24, 2004, “Scalloped Surface Turbine Stage,” A. Tam et al [GE161855].
U.S. Appl. No. 11/035,866, filed Jan. 10, 2005, “Funnel Fillet Turbine Stage,” C. Lee et al [GE162846].
Kirtley Kevin Richard
Lamson Scott Henry
Lee Ching-Pang
Tam Anna
Andes William S.
Conte Francis L.
General Electric Company
Kershteyn Igor
LandOfFree
Crescentic ramp turbine stage does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Crescentic ramp turbine stage, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Crescentic ramp turbine stage will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3749277