Invention Grant
US08221081B2 Turbomachine having an unducted fan provided with air guide means
有权
涡轮机具有设置有空气引导装置的未引导风扇
- Patent Title: Turbomachine having an unducted fan provided with air guide means
- Patent Title (中): 涡轮机具有设置有空气引导装置的未引导风扇
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Application No.: US12617222Application Date: 2009-11-12
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Publication No.: US08221081B2Publication Date: 2012-07-17
- Inventor: Maxime Lebrun
- Applicant: Maxime Lebrun
- Applicant Address: FR Paris
- Assignee: SNECMA
- Current Assignee: SNECMA
- Current Assignee Address: FR Paris
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: FR0806380 20081114
- Main IPC: B64C11/48
- IPC: B64C11/48
Abstract:
A turbomachine having two unducted external fans mounted to contrarotate about a common axis, the fans constituting respectively an upstream fan and a downstream fan, is disclosed. At least some of the blades of the upstream fan carry an air guide device on their radially outer end portions, the air guide device being outwardly oriented on going from upstream to downstream and serving to deflect the vortices that are formed in the vicinity of the blade tips of the upstream fan radially to outside the blades of the downstream fan.
Public/Granted literature
- US20100124500A1 TURBOMACHINE HAVING AN UNDUCTED FAN PROVIDED WITH AIR GUIDE MEANS Public/Granted day:2010-05-20
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