Non-contacting dynamic seal

US10801348B2 · kind B2 · utility

Assignee

• RAYTHEON TECHNOLOGIES CORPORATION · US

Inventors

• Ross Wilson · South Glastonbury, US
• John R. Farris · Southfield, US
• Michael G. McCaffrey · Windsor, US
• Theodore W. Hall · Berlin, US
• John J. Korzendorfer · Glastonbury, US
• Elizabeth F. Vinson · Wethersfield, US
• Jeffrey Michael Jacques · Town of East Hartford, US
• John E. Paul · Portland, US
• Edwin Otero · Southington, US
• Alan W. Stoner · Tullahoma, US

Key dates

• Filing date: Sep 14, 2015
• Grant date: Oct 13, 2020
• Expiry date: Jun 23, 2038

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F05D2300/171
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

Non-contacting dynamic seals having wave springs are disclosed herein. A non-contacting dynamic seal may have a shoe coupled to an outer ring by an inner beam and an outer beam. A wave spring may be located between the inner beam and the outer beam, between the shoe and the inner beam, or between the outer beam and the outer ring. The wave spring may damp vibrations in the inner beam and the outer beam.