EP 1034376 A1 20000913 - 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)
Citation (search report)
See references of WO 0006913A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
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