Airfoil and method for moisture removal and steam injection

Details Airfoil and method for moisture removal and steam injection Airfoil and method for moisture removal and steam injection

2006-05-23

2008-09-09

Kershteyn, Igor (Department: 3745)

Rotary kinetic fluid motors or pumps

Method of operation

C415S169100, C415S169200

Reexamination Certificate

active

07422415

ABSTRACT:
An airfoil configured for removing moisture from the steam flow path and injecting steam into the steam flow path of a steam turbine.

REFERENCES:
patent: 2362831 (1944-11-01), Kraft
patent: 3306575 (1967-02-01), Frankel
patent: 3881842 (1975-05-01), Kosyak et al.
patent: 5261785 (1993-11-01), Williams
patent: 6305902 (2001-10-01), Konishi et al.
patent: 6474942 (2002-11-01), Markytan
patent: 01045904 (1989-02-01), None
Fadeev I.P.; “Erosion in wet steam Turbines” (img id="CUSTOM-CHARACTER-00001" he="3.13mm" wi="9.14mm" file="US07422415-20080909-P00001.TIF" alt="custom character" img-content="character" img-format="tif" ?img id="CUSTOM-CHARACTER-00002" he="2.79mm" wi="4.91mm" file="US07422415-20080909-P00002.TIF" alt="custom character" img-content="character" img-format="tif" ?, “img id="CUSTOM-CHARACTER-00003" he="3.13mm" wi="8.81mm" file="US07422415-20080909-P00003.TIF" alt="custom character" img-content="character" img-format="tif" ?img id="CUSTOM-CHARACTER-00004" he="2.46mm" wi="10.58mm" file="US07422415-20080909-P00004.TIF" alt="custom character" img-content="character" img-format="tif" ?img id="CUSTOM-CHARACTER-00005" he="2.46mm" wi="9.14mm" file="US07422415-20080909-P00005.TIF" alt="custom character" img-content="character" img-format="tif" ?img id="CUSTOM-CHARACTER-00006" he="3.13mm" wi="8.47mm" file="US07422415-20080909-P00006.TIF" alt="custom character" img-content="character" img-format="tif" ?”), “img id="CUSTOM-CHARACTER-00007" he="3.13mm" wi="11.26mm" file="US07422415-20080909-P00007.TIF" alt="custom character" img-content="character" img-format="tif" ?img id="CUSTOM-CHARACTER-00008" he="3.13mm" wi="10.24mm" file="US07422415-20080909-P00008.TIF" alt="custom character" img-content="character" img-format="tif" ?”, Book published in Russia; 1974; p. 141 and p. 152.
Troyanovsky, et al; “Latest Developments in Steam Turbine Low Pressure Cylinders and Last Stages”; The Moscow Power Institute (State University); 2002; 3 pages; Fig. 9.3 excerpted from Sakuma et al., “Upgrading and life Extension Technologies for Existing Steam Turbines”, (Toshiba Co.), Oct. 2001. p. 832-837.

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