Rim seal arrangement having pumping feature
A rim seal arrangement for a gas turbine engine includes a first seal face on a rotor component, and a second seal face on a stationary annular rim centered about a rotation axis of the rotor component. The second seal face is spaced from the first seal face along an axial direction to define a seal gap. The seal gap is located between a radially outer hot gas path and a radially inner rotor cavity. The first seal face has a plurality of circumferentially spaced depressions, each having a depth in an axial direction and extending along a radial extent of the first seal face. The depressions influence flow in the seal gap such that during rotation of the rotor component, fluid in the seal gap is pumped in a radially outward direction to prevent ingestion of a gas path fluid from the hot gas path into the rotor cavity.
- Research Organization:
- Siemens Energy, Inc. Orlando, FL (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FC26-05NT42644
- Assignee:
- Siemens Energy, Inc.
- Patent Number(s):
- 9,631,509
- Application Number:
- 14/946,893
- OSTI ID:
- 1353070
- Resource Relation:
- Patent File Date: 2015 Nov 20
- Country of Publication:
- United States
- Language:
- English
Similar Records
Aft outer rim seal arrangement
Circumferentially smeared computed effects of rim seal clearance on wheelspace thermal distributions