Gas turbine

Details Gas turbine Gas turbine

2005-01-25

2005-01-25

Verdier, Christopher (Department: 3745)

Rotary kinetic fluid motors or pumps

With changing state confined heat exchange mass

C415S115000, C415S116000, C415S173200, C415S173300, C415S175000, C415S176000, C415S178000

Reexamination Certificate

active

06846156

ABSTRACT:
In a gas turbine, blade ring cooling passages are provided inside a first blade ring and a second blade ring. The blade ring cooling passages are connected with each other through a communication pipe that is arranged in an axial direction of the blade ring. From outside of a wheel chamber, cooling air to cool down stationary blades is sent with pressure into an inside of the stationary blades that are installed on an inner wall of the blade rings. Thermal shields are provided on outer surfaces of the blade rings and communication pipes through gaps therebetween. In the gaps between the outer surfaces of the blade rings or the outer surfaces of the communication pipes and the thermal shields, partitions are installed to stagnate the cooling air to cool down the stationary blades.

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patent: 6463729 (2002-10-01), Magoshi et al.
patent: 6508623 (2003-01-01), Shiozaki et al.
patent: 6602048 (2003-08-01), Fujikawa et al.
patent: 62-150502 (1987-09-01), None
patent: 11-159345 (1999-06-01), None
patent: 2001-289059 (2001-10-01), None

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