Cooled turbine vane with endcaps

US6454526B1 · kind B1 · utility

Assignee

• Siemens Westinghouse Power Corporation · US

Inventors

• Frank J. Cunha · Avon, US
• Anthony L. Schiavo · Oviedo, US
• Raymond S. Nordlund · Orlando, US
• Thomas Malow · Berlin, DE
• Barry L. McKinley · Oviedo, US

Key dates

• Filing date: Sep 28, 2000
• Grant date: Sep 24, 2002
• Expiry date: Sep 28, 2020

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F05D2240/81
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A turbine vane assembly which includes an outer endcap having a plurality of generally straight passages and passage segments therethrough, an inner endcap having a plurality of passages and passage segments therethrough, and a vane assembly having an outer shroud, an airfoil body, and an inner shroud. The outer shroud, airfoil body and inner shroud each have a plurality of generally straight passages and passage segments therethrough as well. The outer endcap is coupled to the outer shroud so that outer endcap passages and said outer shroud passages form a fluid circuit. The inner endcap is coupled to the inner shroud so that the inner end cap passages and the inner shroud passages from a fluid circuit. Passages in the vane casting are in fluid communication with both the outer shroud passages and the inner shroud passages. Passages in the outer endcap may be coupled to a cooling system that supplies a coolant and takes away the heated exhaust.