Title:
Propellers for fans, such as a car
Document Type and Number:
Japanese Patent JP6022941
Kind Code:
B2
Abstract:
A fan propeller comprises blades (14), each of which has a general profile of the aircraft wing type, with a leading edge (28) and a trailing edge (30), a neutral axis (32) and a span (36) between the leading edge (28) and the trailing edge (30). According to one embodiment, the blade (14) has, on at least part of its length, a profile shaped such that the neutral axis (32) makes possible a point of contraflexure (34), and has two opposite concavities, i.e. a positive concavity (C1) between the leading edge (28) and the point of contraflexure (34), and a negative concavity (C2) between the point of contraflexure (34) and the trailing edge (30). Application to motor vehicles.
Inventors:
Manuel Ennel
Bruno Dumori
Bruno Dumori
Application Number:
JP2012542424A
Publication Date:
November 09, 2016
Filing Date:
November 08, 2010
Export Citation:
Assignee:
Valeo System Thermic
International Classes:
F04D29/38
Domestic Patent References:
| JP52081538U | ||||
| JP2085898U | ||||
| JP4503391A | ||||
| JP7077198A |
Foreign References:
| US6116856 | ||||
| GB513863A | ||||
| US1506937 | ||||
| US20040227035 |
Attorney, Agent or Firm:
Soichi Takezawa
Noritsugu Nakama
Hiroyuki Mori
Noritsugu Nakama
Hiroyuki Mori