Gas turbine shaft and heat shield cooling arrangement

Details Gas turbine shaft and heat shield cooling arrangement Gas turbine shaft and heat shield cooling arrangement

2005-03-01

2005-03-01

Kim, Ted (Department: 3746)

Power plants

Combustion products used as motive fluid

Combustion products generator

C415S115000

Reexamination Certificate

active

06860110

ABSTRACT:
A gas turbine having a rotor driven by a shaft with a cooling medium passageway therein has a heat shield pipe portion mounted inside the passageway which forms an air layer with a wall of the passageway to protect a bearing member metal supporting the shaft from the heat of a cooling medium and a seal shaft portion for forming a labyrinth seal to prevent leakage of the cooling medium are formed as one piece and constitute a heat shied seal pipe.

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patent: 5593274 (1997-01-01), Carreno et al.
patent: 6155040 (2000-12-01), Sasaki
patent: 6185924 (2001-02-01), Matsumoto et al.
patent: 6224327 (2001-05-01), Aoki et al.
patent: 6293089 (2001-09-01), Sasaki
patent: 6435812 (2002-08-01), DeStefano et al.
patent: 6450758 (2002-09-01), Schmidt
patent: 6655153 (2003-12-01), Akiyama et al.
patent: 7-189739 (1995-07-01), None
patent: 11-50808 (1999-02-01), None
patent: 11-229804 (1999-08-01), None

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