Gas turbine

Details Gas turbine Gas turbine

2011-08-23

2011-08-23

Kim, Ted (Department: 3741)

Power plants

Combustion products used as motive fluid

Having mounting or supporting structure

C060S797000, C060S799000

Reexamination Certificate

active

08001790

ABSTRACT:
There is provided a gas turbine capable of improving the durability of a main shaft by absorbing the deformation of a casing due to heat and pressure and suppressing stresses acting on the main shaft. A link plate31of a movable supporting leg30that supports a casing26of a gas turbine20on the turbine24side is installed beforehand in an inclined manner at an angle θ1, whereby the displacement X of a lower casing26L in the height direction; which occurs between a pin31ain a top end portion of the link plate31and a top surface of a lower casing26L when the operation status of the gas turbine20shifts from a stop condition to an operating condition is compensated for. This prevents a main shaft25from changing in the height direction in the part of the movable supporting leg30and suppresses bending stresses acting on the main shaft25.

REFERENCES:
patent: 3628884 (1971-12-01), Mierley, Sr.
patent: 4050660 (1977-09-01), Eggmann et al.
patent: 4149826 (1979-04-01), Torstenfelt
patent: 6708500 (2004-03-01), Huster et al.
patent: 2018910 (1979-10-01), None
patent: 60-10838 (1985-01-01), None
Webpage: “Math Review #1” from http://cse.ssl.berkeley.edu/bmendez/ay10/2002
otes/REVIEW/math1.html, published 2002.
Japanese Office Action dated Jun. 1, 2011, issued in corresponding Japanese Patent Application No. 2007-018783.

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