Title:
【考案の名称】エーロフォイル
Document Type and Number:
Japanese Patent JP2556349
Kind Code:
Y2
Abstract:
57 A turbine airfoil for high temperature applications has a spanwise trailing edge slot (54) and a cut back pressure side wall (22). The pressure side wall (22) has a thickness t at its downstream end. The slot (54) is divided into channels (56) which discharge a film of cooling air over the exposed back surface (65) of the suction side wall (24) downstream of the cut back pressure side wall (22). Each channel (56) tapers from a throat at its upstream end (which meters the flow of cooling air) to the slot outlet of width s. The airfoil (12) is designed with a ratio t/s of no more than 0.7 which significantly improves cooling of the trailing edge (61), reduces required cooling air flow, and permits greater cut back distances. Figs 3 + 4
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Inventors:
Edward Clarence Hill
George Pay Ryan
Thomas axia
George Pay Ryan
Thomas axia
Application Number:
JP937294U
Publication Date:
December 03, 1997
Filing Date:
July 11, 1994
Export Citation:
Assignee:
United Technologies Corporation
International Classes:
F01D5/18; F02C7/18; (IPC1-7): F01D5/18
Domestic Patent References:
| JP5584803A | ||||
| JP59107903U |
Attorney, Agent or Firm:
Akashi Masatake