Methods and apparatus for reducing seal teeth wear

US6652226B2 · kind B2 · utility

Assignee

• General Electric Company · US

Inventors

• Richard W. Albrecht · Lancaster, US
• Joseph C. Kulesa · Sharonville, US
• Robert Czachor · Cincinnati, US
• Shesh Krishna Srivatsa · Cincinnati, US
• Daniel Edward Wines · Cincinnati, US
• Thomas Tracy Wallace · Maineville, US

Key dates

• Filing date: Feb 9, 2001
• Grant date: Nov 25, 2003
• Expiry date: Feb 18, 2021

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T50/60
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A gas turbine engine includes a non-rotatable member that includes a honeycomb seal that reduces wear to rotor seal teeth disposed within the gas turbine engine. The gas turbine engine also includes a rotatable annular member including a sealing assembly disposed between rotor and stator components. The rotatable annular member includes seal teeth that extend radially outward from the rotatable annular member. The stator components include a non-rotatable member that includes a honeycomb seal that extends radially inward. The honeycomb seal is fabricated from a material that has a melting temperature less than approximately 2000° F.