Invention Grant
- Patent Title: Flexible support structure for a geared architecture gas turbine engine
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Application No.: US16747934Application Date: 2020-01-21
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Publication No.: US11174936B2Publication Date: 2021-11-16
- Inventor: Michael E. McCune , Jason Husband
- 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: F01D25/16
- IPC: F01D25/16 ; F02C7/36 ; F16H57/028 ; F02K3/06 ; F04D25/02 ; F04D29/053 ; F04D29/056 ; F16H1/28
Abstract:
A gas turbine engine includes a fan shaft that drives a fan that has fan blades. The fan delivers airflow to a bypass duct. A gear system is connected to the fan shaft and is driven through an input defining an input lateral stiffness and an input transverse stiffness. A gear system flex mount arrangement accommodates misalignment of the fan shaft and the input during operation. A frame for supporting the fan shaft defines a frame lateral stiffness and a frame transverse stiffness. The input lateral stiffness is less than 11% of the frame lateral stiffness and the input transverse stiffness is less that 11% of the frame transverse stiffness.
Public/Granted literature
- US20200158226A1 FLEXIBLE SUPPORT STRUCTURE FOR A GEARED ARCHITECTURE GAS TURBINE ENGINE Public/Granted day:2020-05-21
Information query
