Title:
ガスタービン用ブレード
Document Type and Number:
Japanese Patent JP2011516269
Kind Code:
A
Abstract:
A blade is provided for a gas turbine, especially for the low-pressure turbine of a gas turbine with sequential combustion, and is produced in accordance with a casting process and has a blade airfoil which extends in the radial direction between an inner platform and an outer platform, and in the interior of which extends a cooling passage, bypassing the platforms, and through which flows a cooling medium, especially cooling air, for cooling the blade. In the outer and/or inner platform there are core outlet openings which arise from the use of a casting core and which connect the cooling passage to the outside space and are sealed off by means of a sealing element. Optimum cooling is ensured by the sealing elements being formed and inserted into the core outlet openings so that they align with the wall surface of the cooling passage in a flush manner.
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Inventors:
Von Arx Beat
Dukershof Roland
Wardle Bryan Kenneth
Nagler Christoph
Dukershof Roland
Wardle Bryan Kenneth
Nagler Christoph
Application Number:
JP2011502326A
Publication Date:
May 26, 2011
Filing Date:
March 17, 2009
Export Citation:
Assignee:
ALSTOM Technology Ltd
International Classes:
B22D29/00; B22C9/10; B22C9/24; F01D5/18; F01D9/02; F01D25/00; F01D25/12; F02C7/00; F02C7/18
Domestic Patent References:
| JP2001107701A | 2001-04-17 | |||
| JP2005315261A | 2005-11-10 | |||
| JPH1122411A | 1999-01-26 | |||
| JP2003065068A | 2003-03-05 | |||
| JPH10184309A | 1998-07-14 | |||
| JPH10148104A | 1998-06-02 | |||
| JP2003035103A | 2003-02-07 | |||
| JPH08229819A | 1996-09-10 | |||
| JPH11229806A | 1999-08-24 | |||
| JP2001113358A | 2001-04-24 | |||
| JPH10306701A | 1998-11-17 | |||
| JP2006046338A | 2006-02-16 |
Foreign References:
| US3982854A | 1976-09-28 | |||
| US3626568A | 1971-12-14 | |||
| US6454156B1 | 2002-09-24 |
Attorney, Agent or Firm:
Mitsufumi Esaki
Blacksmith
Blacksmith