Title:
衝突冷却遷移ダクトの側板冷却を強化する空力装置及び関連方法
Document Type and Number:
Japanese Patent JP4754097
Kind Code:
B2
Abstract:
A transition piece assembly for a gas turbine includes a transition duct having one end adapted for connection to a gas turbine combustor and an opposite end adapted for connection to a first turbine stage, and a pair of side panels. The assembly also includes an impingement sleeve 122 surrounding the transition duct and establishing a cooling path therebetween. The impingement sleeve is formed with a plurality of rows of cooling holes 120 therein and a plurality of flow catcher devices 26 on an external surface of the impingement sleeve, each flow catcher device 26 comprising a scoop fixed to an outside surface of the impingement sleeve 122 about a portion of a respective one of said cooling holes 120 and having an open side defined by an edge of the scoop lying in a plane substantially normal to said outside surface. Each flow catcher device is arranged to face a direction of cooling air flow, such that said flow catcher devices 26 redirect said cooling air flow through said impingement sleeve 122 and onto said transition duct 10.
Inventors:
Robert james brand
Application Number:
JP2001156218A
Publication Date:
August 24, 2011
Filing Date:
May 25, 2001
Export Citation:
Assignee:
GENERAL ELECTRIC COMPANY
International Classes:
F02C7/12; F02C7/18; F01D5/18; F01D9/02; F01D25/12; F02C3/00; F23M5/08; F23R3/00; F23R3/42
Domestic Patent References:
| JP6323544A | ||||
| JP62057892B2 | ||||
| JP62009157A |
Foreign References:
| US3581492 | ||||
| US6000908 | ||||
| GB685068A | ||||
| US2993337 |
Attorney, Agent or Firm:
Arakawa Satoshi