Invention Grant
- Patent Title: Planetary gear system arrangement with auxiliary oil system
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Application No.: US15621406Application Date: 2017-06-13
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Publication No.: US10648383B2Publication Date: 2020-05-12
- Inventor: Michael E. McCune , William G. Sheridan , Lawrence E. Portlock
- 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: F01D25/16
- IPC: F01D25/16 ; F01N3/20 ; F01D25/18 ; F02C3/10 ; F02K3/06 ; F02C7/36 ; F02C7/06 ; F02C7/10 ; F01N11/00 ; F16N7/34

Abstract:
A method of designing a gas turbine engine includes configuring a speed reduction device for driving a fan and configuring a lubrication system for lubricating components across a rotation gap. The lubrication system includes a lubricant input. A stationary first bearing receives lubricant from the lubricant input and has a first race in which lubricant flows. A second bearing for rotation is within the first bearing. The second bearing has a first opening in registration with the first race such that lubricant may flow from the first race through the first opening into a first conduit. The first bearing is configured to also include a second race into which lubricant flows. The second bearing has a second opening in registration with the second race such that lubricant may flow from the second race through the second opening into a second conduit. The first and second conduits deliver lubricant to distinct locations.
Public/Granted literature
- US20170276046A1 PLANETARY GEAR SYSTEM ARRANGEMENT WITH AUXILIARY OIL SYSTEM Public/Granted day:2017-09-28
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