Invention Grant
- Patent Title: Oil return passageway for annular rotating seal seat
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Application No.: US16952653Application Date: 2020-11-19
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Publication No.: US11585271B2Publication Date: 2023-02-21
- Inventor: Robert E. Peters , Arnold Zandonella, Jr. , Kurt Link
- Applicant: Raytheon Technologies Corporation
- Applicant Address: US CT Farmington
- Assignee: Raytheon Technologies Corporation
- Current Assignee: Raytheon Technologies Corporation
- Current Assignee Address: US CT Farmington
- Agency: Bachman & Lapointe, P.C.
- Main IPC: F02C7/06
- IPC: F02C7/06 ; F01M1/02 ; F01M11/02

Abstract:
A seal system for a bearing compartment of a gas turbine engine includes an annular rotating seal seat in contact with the seal element to form a dry seal interface therebetween to separate am oil-wetted zone from a dry zone. The annular rotating seal seat forms a dry zone annular space adjacent to the annular seal element and the rotating component. The annular rotating seal seat having an oil return passageway through the rotating seal seat to provide a communication path from the dry zone annular space outboard of the rotating component back to the oil-wetted zone.
Public/Granted literature
- US20210156306A1 OIL RETURN PASSAGEWAY FOR ANNULAR ROTATING SEAL SEAT Public/Granted day:2021-05-27
Information query
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