REFRIGERANT RECOVERY TYPE GAS TURBINE

Title:

REFRIGERANT RECOVERY TYPE GAS TURBINE

Document Type and Number:

WIPO Patent Application WO/1998/023851

Kind Code:

A1

Abstract:

To improve reliability in operation of a gas turbine by suppressing thermal stresses applied onto a rotor of the gas turbine and thermal displacement thereof. In the gas turbine, a plurality of disks (12a) having a plurality of moving blades (7a), which are driven by combustion gas, annularly arranged on an outer periphery thereof, and spacers (11a) disposed between the disks (12a) are successively arranged in an axial direction to form a rotor (1a) shaft. A gap is formed between that area of the disk (12a) on a side of an axis of the rotor, which faces the spacer (11a), and the adjacent spacer (11a), and contact surfaces (16a) contacting both that area of the disk (12a) on a side of an outer periphery of the rotor, which faces the spacer (11a), and the adjacent spacer (11a) are formed. Further, third flow passages (10a) are provided on the disks (12a) for conducting a fluid to the gap.

Inventors:

MARUSHIMA SHINYA (JP)
MATSUMOTO MANABU (JP)
KAWAIKE KAZUHIKO (JP)
IKEGUCHI TAKASHI (JP)
MACHIDA TAKASHI (JP)
SEKIHARA MASARU (JP)

Application Number:

PCT/JP1996/003503

Publication Date:

June 04, 1998

Filing Date:

November 29, 1996

Export Citation:

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Assignee:

HITACHI LTD (JP)
MARUSHIMA SHINYA (JP)
MATSUMOTO MANABU (JP)
KAWAIKE KAZUHIKO (JP)
IKEGUCHI TAKASHI (JP)
MACHIDA TAKASHI (JP)
SEKIHARA MASARU (JP)

International Classes:

F01D5/08; (IPC1-7): F01D5/08; F01D5/18; F01D25/12; F02C7/18

Foreign References:

JPS648504U	1989-01-18
JPH0814064A	1996-01-16
JPH08277725A	1996-10-22
JPH03275946A	1991-12-06

Other References: