Invention Grant
- Patent Title: Fan propeller, in particular for motor vehicles
- Patent Title (中): 风扇螺旋桨，特别是机动车
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Application No.: US12293933Application Date: 2007-03-14
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Publication No.: US08186957B2Publication Date: 2012-05-29
- Inventor: Stéphane Moreau , Antoine Levasseur , Auréllen Levasseur , Manuel Henner , Bruno Demory , Cédric Lebert
- Applicant: Stéphane Moreau , Antoine Levasseur , Auréllen Levasseur , Manuel Henner , Bruno Demory , Cédric Lebert
- Applicant Address: FR Le Mesnil-Saint-Denis, Cedex
- Assignee: Valeo Systemes Thermiques
- Current Assignee: Valeo Systemes Thermiques
- Current Assignee Address: FR Le Mesnil-Saint-Denis, Cedex
- Agency: Howard & Howard Attorneys PLLC
- Priority: FR0602510 20060323
- International Application: PCT/EP2007/052401 WO 20070314
- International Announcement: WO2007/107489 WO 20070927
- Main IPC: A47C7/74
- IPC: A47C7/74 ; A47C21/04 ; B63H1/00 ; B63H3/00 ; B63H5/00 ; B63H7/00 ; B63H13/00 ; B63H15/00 ; B64C11/00 ; B64C27/00 ; F01D25/00 ; F03B3/12
Abstract:
The fan impeller (10) comprises a hub (14) and blades (12) extending radially outward from the hub, the blades having a flattened airfoil profile cross section with a leading edge (24) and a trailing edge (26) between which a chord is defined. The blade (12) has a relative thickness that reached its maximum value (Emax) in the first quarter of the length of the chord measured from the leading edge (24), the relative thickness being defined by the ratio between the thickness of the blade and the length of the chord. The invention finds an application particularly in motor vehicle engine cooling fan impellers.
Public/Granted literature
- US20090311101A1 Fan Propeller, In Particular For Motor Vehicles Public/Granted day:2009-12-17
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