Air riding seal for a turbine

Patent · 19 July 2016

OSTI ID:1264420

Mills, Jacob A.; Brown, Wesley D.; Sexton, Thomas D.; Jones, Russell B.

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.

• Research Organization: S & J Design LLC, Jupiter, FL (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: SC0008218
• Assignee: S & J Design LLC (Jupiter, FL)
• Patent Number(s): 9,394,799
• Application Number: 14/795,095
• OSTI ID: 1264420
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
42 ENGINEERING