Aerodynamic seals for rotary machine
An aerodynamic seal assembly for a rotary machine includes multiple sealing device segments disposed circumferentially intermediate to a stationary housing and a rotor. Each of the segments includes a shoe plate with a forward-shoe section and an aft-shoe section having multiple labyrinth teeth therebetween facing the rotor. The sealing device segment also includes multiple flexures connected to the shoe plate and to a top interface element, wherein the multiple flexures are configured to allow the high pressure fluid to occupy a forward cavity and the low pressure fluid to occupy an aft cavity. Further, the sealing device segments include a secondary seal attached to the top interface element at one first end and positioned about the flexures and the shoe plate at one second end.
- Research Organization:
- GE Global Research, Niskayuna, New York (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FC26-05NT42643
- Assignee:
- General Electric Company
- Patent Number(s):
- 9,255,642
- Application Number:
- 13/542,780
- OSTI ID:
- 1237859
- Resource Relation:
- Patent File Date: 2012 Jul 06
- Country of Publication:
- United States
- Language:
- English
Similar Records
Film riding seal assembly for turbomachinery
Pressure actuated film riding seals for turbo machinery