Triple acting radial seal

Patent · Tue Mar 13 00:00:00 EDT 2012

OSTI ID:1039760

Ebert, Todd A ^[1]; Carella, John A ^[2]

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1. West Palm Beach, FL
2. Jupiter, FL

A triple acting radial seal used as an interstage seal assembly in a gas turbine engine, where the seal assembly includes an interstage seal support extending from a stationary inner shroud of a vane ring, the interstage seal support includes a larger annular radial inward facing groove in which an outer annular floating seal assembly is secured for radial displacement, and the outer annular floating seal assembly includes a smaller annular radial inward facing groove in which an inner annular floating seal assembly is secured also for radial displacement. A compliant seal is secured to the inner annular floating seal assembly. The outer annular floating seal assembly encapsulates the inner annular floating seal assembly which is made from a very low alpha material in order to reduce thermal stress.

• Research Organization: Florida Turbine Technologies, Inc. (Jupiter, FL)
• Sponsoring Organization: USDOE
• DOE Contract Number: FG02-07ER84668
• Assignee: Florida Turbine Technologies, Inc. (Jupiter, FL)
• Patent Number(s): 8,133,014
• Application Number: 12/542,495
• OSTI ID: 1039760
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING