Thermal stress minimized, two component, turbine shroud seal

US4728257A · kind A · utility

Assignee

• The United States of America as represented by the Administrator of the National Aeronautics and Space Administration · US

Inventor

• Robert Handschuh · Burgkirchen an der Alz, DE

Key dates

• Filing date: Jun 18, 1986
• Grant date: Mar 1, 1988
• Expiry date: Jun 18, 2006

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01D11/18
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

In a turbine machine, a two component shroud seal which maximizes insulation and sealing around the rotating turbine blades and made by independently fabricating each of the two components then joining them together is disclosed. The two components may be joined together at room temperature. The resulting shroud seal provides greater engine efficiency and thrust.