Reverse Pressure Capable Finger Seal (Preprint)

Abstract

Current pressure balanced finger seals are designed to be operated with the axial pressure difference across the seal acting in one direction. This limits their application and prevents finger seals from being used in locations where the axial pressure differential may reverse. Currently, the typical solution for locations requiring reverse capable sealing are labyrinth seals which can exhibit significantly higher leakage than finger seals as well as more degradation due to rubbing against the seal land. In this paper we discuss the application of two separate stacks of finger seal laminates oriented in axially opposed directions thereby providing sealing in both directions.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2012
Accession Number
ADA555458

Entities

People

  • Joe Yanof
  • Nathan Gibson

Organizations

  • Honeywell International, Inc.

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Air Force
  • Air Force Facilities
  • Air Force Research Laboratories
  • Composite Materials
  • Department Of Defense
  • Gas Turbines
  • Information Operations
  • Labyrinth Seals
  • Laminates
  • Materials
  • Military Research
  • Monitoring
  • Turbines
  • United States

Readers

  • Nanofabrication and Microfabrication.
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).