Air riding seal for a turbine
Abstract
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.
- Inventors:
- Issue Date:
- Research Org.:
- S & J Design LLC, Jupiter, FL (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1264420
- Patent Number(s):
- 9394799
- Application Number:
- 14/795,095
- Assignee:
- S & J Design LLC (Jupiter, FL)
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01D - NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16J - PISTONS {
- DOE Contract Number:
- SC0008218
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2015 Jul 09
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING; 33 ADVANCED PROPULSION SYSTEMS
Citation Formats
Mills, Jacob A., Brown, Wesley D., Sexton, Thomas D., and Jones, Russell B. Air riding seal for a turbine. United States: N. p., 2016.
Web.
Mills, Jacob A., Brown, Wesley D., Sexton, Thomas D., & Jones, Russell B. Air riding seal for a turbine. United States.
Mills, Jacob A., Brown, Wesley D., Sexton, Thomas D., and Jones, Russell B. Tue .
"Air riding seal for a turbine". United States. https://www.osti.gov/servlets/purl/1264420.
@article{osti_1264420,
title = {Air riding seal for a turbine},
author = {Mills, Jacob A. and Brown, Wesley D. and Sexton, Thomas D. and Jones, Russell B.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {7}
}
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