Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...
Patent
1998-03-17
2000-10-17
Verdier, Christopher
Fluid reaction surfaces (i.e., impellers)
With heating, cooling or thermal insulation means
Changing state mass within or fluid flow through working...
415114, 415115, F01D 518
Patent
active
061321737
ABSTRACT:
A cooled platform for a gas turbine moving blade which enables the platform to be cooled when the moving blade is cooled by steam. The moving blade is provided with a plurality of steam passages. Steam is introduced from the steam passage at the trailing edge portion, flows in a serpentine passage composed of other steam passages to cool the blade, and flows out to a blade root portion from a base portion of the steam passage at the leading edge portion, being recovered. Part of steam flowing into the platform from the base portion of the steam passage at the trailing edge portion enters first and second steam passages in the platform. On one side, the steam passes through first, third, and fourth steam passages, and on the other hand, the steam passes through second, fifth, and sixth steam passages. The steam is recovered together with the steam having cooled the blade at the base portion of steam passage at the leading edge portion. Therefore, the peripheral portion of a platform can be cooled by steam, air is not needed, and the platform can be cooled by steam when the steam cooling system is used to cool the blade.
REFERENCES:
patent: 3066910 (1962-12-01), Bluck
patent: 4063851 (1977-12-01), Weldon
patent: 4312625 (1982-01-01), Pinaire
patent: 5320483 (1994-06-01), Cunha et al.
patent: 5634766 (1997-06-01), Cunha et al.
patent: 5639216 (1997-06-01), McLaurin et al.
patent: 5813835 (1998-09-01), Corsmeier et al.
patent: 5848876 (1998-12-01), Tomita
patent: 5980202 (1999-11-01), Tomita et al.
patent: 6019579 (2000-02-01), Fukuno et al.
European Search Report for EP 98 30 1896 completed Jan. 14, 1999 by F. Raspo.
Patent Abstracts of Japan, vol. 10, No. 249 (M-511), Aug. 27, 1986.
Patent Abstracts of Japan, vol. 97, No. 1, Jan. 31, 1997.
Arase Kenichi
Fukuno Hiroki
Sano Toshiaki
Tomita Yasuoki
Mitsubishi Heavy Industries Ltd.
Verdier Christopher
LandOfFree
Cooled platform for a gas turbine moving blade does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Cooled platform for a gas turbine moving blade, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cooled platform for a gas turbine moving blade will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-462430