Cooled vane for gas turbine

US6305903A · kind A · utility

Assignee

• Asea Brown Boveri, S.A. · CH

Inventors

• Klaus Semmler · Lauchringen, DE
• Bernhard Weigand · Lauchringen, DE

Key dates

• Filing date: Aug 24, 1999
• Grant date: Oct 23, 2001
• Expiry date: Aug 24, 2019

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F05D2260/221
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A cooled vane for a gas turbine or similar device including a vane blade constructed of a suction side wall and a pressure side wall that are connected via a leading edge and a trailing edge with each other, which has an essentially radially extending cavity through which a cooling medium is capable of flowing. The vane blade has multiple cooling channels that, starting from the cavity, extend through a vane section adjoining the trailing edge and formed by sections of the suction side wall and the pressure side wall, and end at the trailing edge. A first row of cooling channels is associated with the suction side (SS) of the vane blade, and a second row of cooling channels is associated with the pressure side (DS) of the vane blade. The cooled vane has improved cooling efficiency and can be produced entirely with a casting process while complying with basic geometric conditions.