Rotor of a steam or gas turbine
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United States of America Patent
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-
Sep 12, 2006
Grant Date -
Mar 3, 2005
app pub date -
Aug 25, 2004
filing date -
Sep 2, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A rotor of a steam or gas turbine is equipped with rotor blades, which are held in the rotor (6) in a plurality of radial rows and comprise a blade foot 1 installed in the rotor (6), a blade leaf (2) and a cover plate (3). An open pocket (5) is prepared in the sloping surfaces of the cover plates (3) of a row of rotor blades, which the sloping surfaces are located opposite each other. The pockets (5) of two adjacent cover plates (3) form together an essentially closed cavity, which expands in the radial direction of the rotor (6). A pin, whose largest cross section is smaller than the largest cross section of the cavity but larger than the smallest cross section of the cavity, is placed freely movably into each cavity.
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