Invention Grant
- Patent Title: Planetary gear system arrangement with auxiliary oil system
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Application No.: US14474869Application Date: 2014-09-02
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Publication No.: US09677420B2Publication Date: 2017-06-13
- 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: F01D25/18
- IPC: F01D25/18 ; F01D25/16 ; F02C3/10 ; F02C7/36 ; F02K3/06 ; F02C7/06 ; F02C7/10 ; F16N7/34

Abstract:
A gas turbine engine includes a fan, a speed reduction device driving the fan and 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 and a second race. A second bearing for rotation is within the first bearing including 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. There is a rotating carrier for supporting at least one planetary gear. The second bearing extends from the rotating carrier about an axis. A first spray bar is disposed on the carrier. The second bearing has a second opening in registration with the second race and a second conduit for passing lubricant to the spray bar.
Public/Granted literature
- US20140369818A1 PLANETARY GEAR SYSTEM ARRANGEMENT WITH AUXILIARY OIL SYSTEM Public/Granted day:2014-12-18
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