- Patent Title: Radial seal arrangement with axially elongated oil cooled runner
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Application No.: US16546436Application Date: 2019-08-21
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Publication No.: US11299997B2Publication Date: 2022-04-12
- Inventor: Jonathan Logan Miller , M Rifat Ullah
- Applicant: UNITED TECHNOLOGIES CORPORATION
- Applicant Address: US CT Farmington
- Assignee: UNITED TECHNOLOGIES CORPORATION
- Current Assignee: UNITED TECHNOLOGIES CORPORATION
- Current Assignee Address: US CT Farmington
- Agency: Carlson, Gaskey & Olds, P.C.
- Main IPC: F01D11/00
- IPC: F01D11/00 ; F02C7/28 ; F01D25/16 ; F01D25/18 ; F02C7/06 ; F16J15/44

Abstract:
A seal includes a seal runner, at least one seal ring, and a seal housing. The runner extends in an axial direction to a runner end face that faces a bearing. The ring is fixed to a static structure and has an inner surface engaging the seal runner and a first face that faces the bearing. The seal housing is fixed to the static structure and includes a first portion extending in an axial direction from the first face of the seal ring to a housing face that faces the bearing. The first portion has a first length extending from the first face of the seal ring to the housing face. The seal runner has a first runner portion with a second length that extends from the first face of the seal ring to the runner end face. The second length is at least 35% longer than the first length.
Public/Granted literature
- US20210054755A1 RADIAL SEAL ARRANGEMENT WITH AXIALLY ELONGATED OIL COOLED RUNNER Public/Granted day:2021-02-25
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