Invention Grant
- Patent Title: Turbofan engine with HP and LP power off-takes
- Patent Title (中): 带有HP和LP电源的Turbofan发动机
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Application No.: US12960779Application Date: 2010-12-06
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Publication No.: US08966911B2Publication Date: 2015-03-03
- Inventor: Robert A. Ress, Jr. , Todd Anthony Godleski
- Applicant: Robert A. Ress, Jr. , Todd Anthony Godleski
- Applicant Address: US IN Indianapolis
- Assignee: Rolls-Royce North American Technologies, Inc.
- Current Assignee: Rolls-Royce North American Technologies, Inc.
- Current Assignee Address: US IN Indianapolis
- Agency: Krieg DeVault LLP
- Main IPC: F02C7/32
- IPC: F02C7/32 ; F02C7/275 ; F02C7/36 ; F02K3/06

Abstract:
A turbofan gas turbine engine is provided having a unique power off-take shaft and gear system. Other gas turbine engine types are also contemplated herein. Two power off-takes are provided, one each for the low pressure spool and high pressure spool. The power off-takes extend across a core flow path of the turbofan engine between the low and high pressure shafts to a fan frame of the turbofan. A drive gear is provided near the front end of the high pressure shaft, and another drive gear is provided on the low pressure shaft near the drive gear for the high pressure shaft. Both gears are located in a sump of the gas turbine engine. The power off-take shafts are coupled to the drive gears. Two power devices are coupled to the power off-take shafts and are located in the fan frame. The power devices can be electric generators or motors.
Public/Granted literature
- US20110154827A1 TURBOFAN ENGINE WITH HP AND LP POWER OFF-TAKES Public/Granted day:2011-06-30
Information query
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