Invention Grant
- Patent Title: Non-contacting seals for geared gas turbine engine bearing compartments
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Application No.: US14053648Application Date: 2013-10-15
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Publication No.: US08770918B1Publication Date: 2014-07-08
- Inventor: M. Rifat Ullah , Robert E. Peters
- Applicant: United Technologies Corporation
- Applicant Address: US CT Hartford
- Assignee: United Technologies Corporation
- Current Assignee: United Technologies Corporation
- Current Assignee Address: US CT Hartford
- Agency: Carlson, Gaskey & Olds, PC
- Main IPC: F01D11/00
- IPC: F01D11/00 ; F16J15/34 ; F02C7/28 ; F01D25/22 ; F16C32/06

Abstract:
A rotating element is associated with at least one bearing compartment that includes a bearing to support the rotating element. A seal resists leakage of lubricant outwardly of the bearing compartment and allows air to flow from a chamber across the seal and into the bearing compartment. The seal has a seal face facing a rotating face rotating with the rotating element. The seal is a non-contact seal. A gas turbine engine is also disclosed.
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