Invention Grant
- Patent Title: Seal assembly for a bearing assembly in a gas turbine engine
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Application No.: US14454064Application Date: 2014-08-07
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Publication No.: US09944399B2Publication Date: 2018-04-17
- Inventor: Michel Desjardins
- Applicant: Pratt & Whitney Canada Corp.
- Applicant Address: CA Longueuil
- Assignee: PRATT & WHITNEY CANADA CORP.
- Current Assignee: PRATT & WHITNEY CANADA CORP.
- Current Assignee Address: CA Longueuil
- Agency: Norton Rose Fulbright Canada LLP
- Main IPC: B64D27/10
- IPC: B64D27/10 ; F01D11/00 ; F01D25/18

Abstract:
A seal assembly for a bearing assembly in a gas turbine engine includes a first annular runner disposed around a shaft rotatable about an axis defining an axial direction. The first annular runner is rotatable with the shaft about the axis. A seal element is spaced apart from the first annular runner and cooperating therewith to provide a gap seal. An annular lip axially extends from the gap seal to an open end. The lip is disposed at least partially around the seal runner. A second annular runner is disposed coaxially with and spaced radially apart from the lip. The second annular runner extends axially opposite to the lip so as to provide a tortuous path leading to the open end of the lip. A restrictor extends between the lip and the second annular runner to impede the passage oil through the tortuous path to the open end of the lip.
Public/Granted literature
- US20160040544A1 SEAL ASSEMBLY FOR A BEARING ASSEMBLY IN A GAS TURBINE ENGINE Public/Granted day:2016-02-11
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