EP 1034376 B1 20030423 - FAN BLADE
Title (en)
FAN BLADE
Title (de)
LÜFTERRAD
Title (fr)
HELICE DE VENTILATEUR
Publication
Application
Priority
- FR 9901861 W 19990728
- FR 9809648 A 19980728
Abstract (en)
[origin: FR2781843A1] The invention concerns a blade having an axial length L, expressed in metre, equal, by approximately 20 %, to the value of L0 given by the following formula (I): L0 = 0.426262 - 5.14288.D + 23.1798.D<2> - 44.2505.D<3> + 30.8841.D<4>, D being the blade diameter expressed in metre. The invention enables to substantially reduce the blade axial space requirement, for a given diameter and for obtaining the desired performance. The invention is useful for cooling a motor vehicle engine.
IPC 1-7
IPC 8 full level
F04D 29/32 (2006.01)
CPC (source: EP US)
F04D 29/325 (2013.01 - EP US); Y10S 416/02 (2013.01 - EP US)
Designated contracting state (EPC)
DE ES GB IT
DOCDB simple family (publication)
FR 2781843 A1 20000204; FR 2781843 B1 20001020; DE 69907134 D1 20030528; DE 69907134 T2 20040226; EP 1034376 A1 20000913; EP 1034376 B1 20030423; ES 2198929 T3 20040201; US 6350104 B1 20020226; WO 0006913 A1 20000210
DOCDB simple family (application)
FR 9809648 A 19980728; DE 69907134 T 19990728; EP 99934796 A 19990728; ES 99934796 T 19990728; FR 9901861 W 19990728; US 50947300 A 20000328