Invention Grant
- Patent Title: Geared turbofan engine with targeted modular efficiency
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Application No.: US16531704Application Date: 2019-08-05
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Publication No.: US10823052B2Publication Date: 2020-11-03
- Inventor: 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: F02C3/107
- IPC: F02C3/107 ; F01D5/14 ; F02K3/06

Abstract:
A turbofan engine includes a fan section including a fan blade having a leading edge and hub to tip ratio of less than about 0.34 and greater than about 0.020 measured at the leading edge and a speed change mechanism with gear ratio greater than about 2.6 to 1. A first compression section includes a last blade trailing edge radial tip length that is greater than about 67% of the radial tip length of a leading edge of a first stage of the first compression section. A second compression section includes a last blade trailing edge radial tip length that is greater than about 57% of a radial tip length of a leading edge of a first stage of the first compression section.
Public/Granted literature
- US20190353098A1 GEARED TURBOFAN ENGINE WITH TARGETED MODULAR EFFICIENCY Public/Granted day:2019-11-21
Information query
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