Turbine shaft and method for cooling a turbine shaft

Details Turbine shaft and method for cooling a turbine shaft Turbine shaft and method for cooling a turbine shaft

1998-11-23

2000-07-04

Ryznic, John E.

Rotary kinetic fluid motors or pumps

With passage in blade, vane, shaft or rotary distributor...

415180, F01D 514, F03B 1100, F04D 2958

Patent

active

060829621

ABSTRACT:
A turbine shaft includes an inflow region for fluid, in particular steam, and at least two recesses spaced apart axially from one another and from the inflow region, for receiving at least one turbine blade in each case. A cavity in the turbine shaft is associated with the inflow region and is connected to a feed line and a discharge line for fluid for cooling the turbine shaft. A steam turbine and a method for cooling an inflow region of a turbine shaft disposed in a steam turbine, are also described.

REFERENCES:
patent: 3291447 (1966-12-01), Brandon
patent: 3817654 (1974-06-01), Sohma
patent: 4465429 (1984-08-01), Martin et al.
patent: 4571153 (1986-02-01), Keller
patent: 5232338 (1993-08-01), Vincent De Paul et al.
Patent Abstracts of Japan No. 59-155503 (Tadashi), dated Sep. 4, 1984.
"Measurements for modernizing and prolong the life of steam turbine components" (Bergmann et al.), VGB Power Engineering, vol. 71, No. 2, pp. 116-122.
Patent Abstracts of Japan No. 60-159304 (Minoru), dated Aug. 20, 1985.
Patent Abstracts of Japan No. 58-133402 (Shinichiro), dated Aug. 9, 1983.

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