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Title: Air riding seal for a turbine

An air riding seal between a rotor and a stator in a turbine of a gas turbine engine, where an annular piston is movable in an axial direction within a housing that extends from the stator, and a bellows is secured to the annular piston to form a flexible air passageway from a compressed air inlet through the annular piston and into a cushion cavity that forms an air riding seal between the annular piston and the rotor sealing surface. In another embodiment, a flexible seal secured to and extending from the annular piston forms a sealing surface between the annular piston chamber and the annular piston to provide a seal and allow for axial movement.
Authors:
; ; ;
Publication Date:
OSTI Identifier:
1264420
Report Number(s):
9,394,799
14/795,095
DOE Contract Number:
SC0008218
Resource Type:
Patent
Resource Relation:
Patent File Date: 2015 Jul 09
Research Org:
S & J DESIGN LLC, Jupiter, FL (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 33 ADVANCED PROPULSION SYSTEMS