Invention Publication
- Patent Title: GAS TURBINE ENGINE WITH HIGH SPEED LOW PRESSURE TURBINE SECTION AND BEARING SUPPORT FEATURES
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Application No.: US18104375Application Date: 2023-02-01
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Publication No.: US20230167752A1Publication Date: 2023-06-01
- Inventor: Frederick M. Schwarz , Gabriel L. Suciu , William K. Ackermann , Daniel Bernard Kupratis , Michael E. McCune
- Applicant: RAYTHEON TECHNOLOGIES CORPORATION
- Applicant Address: US CT Farmington
- Assignee: RAYTHEON TECHNOLOGIES CORPORATION
- Current Assignee: RAYTHEON TECHNOLOGIES CORPORATION
- Current Assignee Address: US CT Farmington
- Main IPC: F01D25/16
- IPC: F01D25/16 ; F02K3/06 ; F02C3/107 ; F01D15/12 ; F02C7/06 ; F02C7/20 ; F02C7/36

Abstract:
A turbofan engine according to an example of the present disclosure includes, among other things, a fan, a compressor section, a turbine section including a fan drive turbine and a second turbine, an epicyclic gear system with a gear reduction, first and second bearings, and a fan drive shaft interconnecting the gear system and the fan. The fan drive turbine has a first exit area at a first exit point and is rotatable at a first speed. The second turbine has a second exit area at a second exit point and is rotatable at a second speed. A first performance quantity is defined as the product of the first speed squared and the first area. A second performance quantity is defined as the product of the second speed squared and the second area.
Public/Granted literature
- US11913349B2 Gas turbine engine with high speed low pressure turbine section and bearing support features Public/Granted day:2024-02-27
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