Title:
エーロフォイル近傍に冷却継ぎ目を有するタービン静翼システム
Document Type and Number:
Japanese Patent JP5138997
Kind Code:
B2
Abstract:
Aspects of the invention relate to a turbine vane (30) in which the inner and outer platforms (52, 54) are located substantially entirely on either the pressure side (36) or the suction side (38) of the airfoil (32). When a plurality of such vanes (30) are installed in the turbine, a seam (78) is formed by the circumferential end (56) of the inner and outer platforms (52, 54) and a portion of the airfoil (32) of a neighboring vane (30). During engine operation, a high pressure coolant (82) is supplied to at least one of the platforms (52, 54). The coolant (82) can leak through the seam (78). Because the seam (78) is located proximate the airfoil (32), the coolant leakage through the seam (78) can be productively used to cool the transition region (86) between the vane platforms (52, 54) and the airfoil (32). In addition to such cooling benefits, aspects of the invention can result in a potential increase in engine efficiency as well as component life.
Inventors:
Bonnie Dee Marini
Anthony El Siavo
Anthony El Siavo
Application Number:
JP2007190339A
Publication Date:
February 06, 2013
Filing Date:
July 23, 2007
Export Citation:
Assignee:
Siemens Power Generation Inc.
International Classes:
F01D9/02
Domestic Patent References:
| JP2000073704A | ||||
| JP6123803A |
Attorney, Agent or Firm:
Koichiro Kato