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Title: Self-balancing air riding seal for a turbine

A turbine of a gas turbine engine has an air riding seal that forms a seal between a rotor and a stator of the turbine, the air riding seal including an annular piston movable in an axial direction under the influence of a pressure on one side with a pressure acting on an opposite side that self-balances the air riding seal during the steady state condition of the engine and lifts off the seal during engine transients.
Inventors:
Issue Date:
OSTI Identifier:
1375224
Assignee:
Florida Turbine Technologies, Inc. CHO
Patent Number(s):
9,732,622
Application Number:
14/740,317
Contract Number:
SC0008218
Resource Relation:
Patent File Date: 2015 Jun 16
Research Org:
Florida Turbine Technologies, Inc. Jupiter, FL (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 33 ADVANCED PROPULSION SYSTEMS

Other works cited in this record:

Fluid-sealed shaft seal with bores for supplying and discharging fluid
patent, June 1985

Rotary face seal assembly
patent, May 2006

Seal apparatus
patent, July 2007

Mechanical seal assembly
patent, January 2011

Floating air seal for a turbine
patent, November 2011

Floating air seal for a turbine
patent, April 2012

Rotary machine aspirating seal assembly and method of assembling the same
patent, March 2016

Air riding seal for a turbine
patent, July 2016

Floating air riding seal for a turbine
patent, August 2016

Fluid sealing device for rotating machines
patent, March 2017

Mechanical seal
patent, April 2017

Seal ring and mechanical seal device for jet engines
patent-application, May 2007

Aspirating Labyrinth Seal
patent-application, January 2008

Air Riding Seal Arrangement
patent-application, June 2013

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