发明申请
- 专利标题: COOL CORE GAS TURBINE ENGINE
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申请号: US15417745申请日: 2017-01-27
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公开(公告)号: US20180216575A1公开(公告)日: 2018-08-02
- 发明人: Brandon Wayne Miller , Matthew Ryan Polakowski , Patrick Michael Marrinan , Joel Francis Kirk , Randy M. Vondrell , Jeffrey Donald Clements
- 申请人: General Electric Company
- 主分类号: F02K3/06
- IPC分类号: F02K3/06 ; F01D25/26 ; F02C3/04 ; F02C7/18 ; F02C7/36
摘要:
A turbofan engine is provided including a fan having a plurality of rotatable fan blades and defining a fan pressure ratio during operation of the turbofan engine. The turbofan engine also includes a turbomachine operably coupled to the fan for driving the fan, the turbomachine including a compressor section, a combustion section, and a turbine section in serial flow order and together defining a core air flowpath. The turbofan also includes an outer nacelle at least partially surrounding the fan and the turbomachine, the outer nacelle defining a bypass passage with the turbomachine. A bypass ratio of an amount of airflow through the bypass passage to an amount of airflow through the core air flowpath during operation of the turbofan is less than or equal to about 11 and wherein the fan pressure ratio is less than or equal to about 1.5.
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