Invention Grant
- Patent Title: Turbofan engine
- Patent Title (中): 涡轮发动机
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Application No.: US12307535Application Date: 2007-04-06
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Publication No.: US08579592B2Publication Date: 2013-11-12
- Inventor: Hidekazu Kodama , Shinya Goto , Ikuhisa Mizuta , Takeshi Murooka
- Applicant: Hidekazu Kodama , Shinya Goto , Ikuhisa Mizuta , Takeshi Murooka
- Applicant Address: JP Tokyo
- Assignee: IHI Corporation
- Current Assignee: IHI Corporation
- Current Assignee Address: JP Tokyo
- Agency: Griffin & Szipl, P.C.
- Priority: JP2006-184207 20060704
- International Application: PCT/JP2007/057744 WO 20070406
- International Announcement: WO2008/004364 WO 20080110
- Main IPC: B23K5/08
- IPC: B23K5/08
Abstract:
A hub-side leading edge part of a fan first-stage rotating blade 10 for taking an air thereinto more extends in a forward direction of an engine than a tip-side leading edge part and a mid-span leading edge part. The hub side of the fan first-stage rotating blade 10 is integrally connected as one with the tip side and the mid span while having a longer chord length than those of the tip side and the mid span. A radius at a root of the hub-side leading edge part is set in a boss ratio of 0 to 0.4.
Public/Granted literature
- US20090304518A1 TURBOFAN ENGINE Public/Granted day:2009-12-10
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