Rotary kinetic fluid motors or pumps – Working fluid passage or distributing means associated with... – Plural rigidly related blade sets
Reexamination Certificate
2007-01-30
2007-01-30
Edgar, Richard A. (Department: 3745)
Rotary kinetic fluid motors or pumps
Working fluid passage or distributing means associated with...
Plural rigidly related blade sets
C415S216100
Reexamination Certificate
active
10958424
ABSTRACT:
A rotor (10) for a thermal machine, in particular a steam or gas turbine, includes a plurality of rotor disks (12, 13, 14) which are arranged one behind the other in the rotor axis (11) and are welded to one another, at least one first rotor disk (13), which is arranged in a section of the rotor (10) which is subject to particularly high thermal loads, including a nickel-base alloy which is able to withstand high temperatures and is welded to at least one second, adjacent rotor disk (12, 14), which includes a steel which is able to withstand high temperatures. In a rotor (10) of this type, accurate testing of the welded joints located in the high-temperature region is achieved by nondestructive testing by virtue of the fact that a first rotor ring (15, 16) of a steel which is able to withstand high temperatures is inserted between the first and second rotor disks (13and12, 14), which first rotor ring (15, 16) on one side is welded to the second rotor disk (12, 14) and on the other side is joined to the first rotor disk (13) via an encircling weld seam (21, 21′, 26).
REFERENCES:
patent: 6152697 (2000-11-01), Konishi et al.
patent: 2002/0136659 (2002-09-01), Staubli et al.
patent: 39 03 588 (1993-09-01), None
patent: 199 53 079 (2001-05-01), None
patent: 101 12 062 (2002-09-01), None
patent: 61042492 (1986-02-01), None
Search Report from DE 103 48 424.8 (Jun. 4, 2004).
Bachelet, E. et al., eds., “High temperature materials for power engineering 1990.” Kluwer Academic Publisher. Liege, Sep. 24-27, 1990, pp. 1309-1318, 1461-1490.
Alstom Technology Ltd.
Cermak Adam J.
Cermak & Kenealy LLP
Edgar Richard A.
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