Invention Grant
- Patent Title: Ring gear mounting arrangement with oil scavenge scheme
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Application No.: US17062197Application Date: 2020-10-02
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Publication No.: US11378039B2Publication Date: 2022-07-05
- Inventor: Michael E. McCune , Lawrence E. Portlock , Frederick M. Schwarz
- Applicant: Raytheon Technologies Corporation
- Applicant Address: US CT Farmington
- Assignee: Raytheon Technologies Corporation
- Current Assignee: Raytheon Technologies Corporation
- Current Assignee Address: US CT Farmington
- Agency: Carlson, Gaskey & Olds, P.C.
- Main IPC: F16H57/04
- IPC: F16H57/04 ; F02K3/06 ; F02C7/36

Abstract:
A gas turbine engine includes a bypass ratio greater than about ten (10). A fan is supported on a fan shaft and has a plurality of fan blades. A gear system is connected to the fan shaft. A plurality of planetary gears and a first set of opposed angled ring gear teeth are separated from a second set of opposed angled ring gear teeth. A lubricant flow path is located axially between the first set of opposed angled ring gear teeth and the second set of opposed angled ring gear teeth. A gear system support is relative to a fixed housing facilitating segregation of vibrations. An annular channel is axially aligned with the lubricant flow path. A low pressure turbine has an inlet, an outlet, and a low pressure turbine pressure ratio greater than 5:1.
Public/Granted literature
- US20210017936A1 RING GEAR MOUNTING ARRANGEMENT WITH OIL SCAVENGE SCHEME Public/Granted day:2021-01-21
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