Invention Grant
- Patent Title: Lubrication of journal bearing during clockwise and counter-clockwise rotation
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Application No.: US14905528Application Date: 2014-07-10
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Publication No.: US10577974B2Publication Date: 2020-03-03
- Inventor: Christopher M. Valva , Brian P. Cigal
- 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/US2014/046123 WO 20140710
- International Announcement: WO2015/009535 WO 20150122
- Main IPC: F01D25/20
- IPC: F01D25/20 ; F01M1/02 ; F02C7/06 ; F02C7/32 ; F02C7/36 ; F16H57/04 ; F16N13/20

Abstract:
The present disclosure is applicable to all gear trains using a journal bearing as a means of supporting gear shaft rotation. It is related in some embodiments to a system and method for supplying lubricant to the journal bearings of a gear-turbofan engine gear train when the fan rotor is subjected to a wind-milling condition in both directions, either clockwise or counterclockwise.
Public/Granted literature
- US10400631B2 Lubrication of journal bearing during clockwise and counter-clockwise rotation Public/Granted day:2019-09-03
Information query