Invention Grant
- Patent Title: Three spool geared turbofan with low pressure compressor drive gear system and mechanical controller
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Application No.: US14912105Application Date: 2014-08-21
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Publication No.: US10041498B2Publication Date: 2018-08-07
- Inventor: John R. Otto , James B. Coffin , Jason Husband
- 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.
- International Application: PCT/US2014/051990 WO 20140821
- International Announcement: WO2015/031143 WO 20150305
- Main IPC: F02K3/06
- IPC: F02K3/06 ; F04D25/04 ; F02C3/107 ; F01D5/02 ; F01D15/12 ; F04D25/02 ; F04D27/00 ; F04D29/32 ; F02C7/36
Abstract:
A turbofan engine is disclosed that includes a fan rotatable about an axis, a compressor section including a high pressure compressor, a medium pressure compressor and a low pressure compressor and a turbine section including a high pressure turbine, an intermediate turbine and a fan drive turbine. A fan drive gear system is driven by the fan drive turbine for driving the fan. A compressor drive gear system is driven by the intermediate turbine for driving the low pressure compressor. A gear controller controls rotation of at least one of the fan drive gear system and the compressor drive gear system relative to a static structure to vary an effective speed reduction ratio of one of the fan drive gear system and the compressor drive gear system.
Public/Granted literature
- US20160195096A1 THREE SPOOL GEARED TURBOFAN WITH LOW PRESSURE COMPRESSOR DRIVE GEAR SYSTEM AND MECHANICAL CONTROLLER Public/Granted day:2016-07-07
Information query
