Invention Grant
- Patent Title: Nonlinear rolling bearing radial support stiffness
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Application No.: US14899971Application Date: 2014-05-30
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Publication No.: US09856751B2Publication Date: 2018-01-02
- Inventor: Loc Quang Duong , Xiaolan Hu , Behzad Hagshenas
- 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: Cantor Colburn LLP
- International Application: PCT/US2014/040186 WO 20140530
- International Announcement: WO2014/204633 WO 20141224
- Main IPC: F01D25/16
- IPC: F01D25/16 ; F16C19/52 ; F16C27/04 ; F02C7/06 ; F01D5/02 ; F01D21/04 ; F01D25/04

Abstract:
A bearing support assembly includes a squirrel cage defining a longitudinal axis and having a cylindrical portion defining a bearing seat. The squirrel cage is configured and adapted to provide a first level of radial support stiffness between a housing and a bearing seated in the bearing seat. A damper sleeve is operatively coupled to the cylindrical portion of the squirrel cage through a fluid film to dampen relative radial motion between the damper sleeve and the squirrel cage. A radial spring component is operatively connected to a side of the damper sleeve radially opposite the cylindrical portion of the squirrel cage to provide a second level of radial support stiffness.
Public/Granted literature
- US20160138421A1 NONLINEAR ROLLING BEARING RADIAL SUPPORT STIFFNESS Public/Granted day:2016-05-19
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