EP 3390839 B1 20210203 - IMPELLER FOR A MOTOR-DRIVEN FAN UNIT OF A VEHILCLE ENGINE COOLING SYSTEM
Title (en)
IMPELLER FOR A MOTOR-DRIVEN FAN UNIT OF A VEHILCLE ENGINE COOLING SYSTEM
Title (de)
LAUFRAD FÜR EIN MOTORGETRIEBENES GEBLÄSE EINES MOTORKÜHLSYSTEMS EINES FAHRZEUGS
Title (fr)
HÉLICE POUR UN GROUPE MOTO-VENTILATEUR D'UN SYSTÈME DE REFROIDISSEMENT D'UN MOTEUR DE VÉHICULE
Publication
Application
Priority
- FR 1562806 A 20151218
- FR 2016053311 W 20161209
Abstract (en)
[origin: WO2017103395A2] The invention relates to an impeller (3) for a motor-driven fan unit (1) comprising a housing (2) defining an air flow passage through which the blades (6) extend, said impeller (3) comprising a hub (5) which can be rotatably connected to a shaft of a drive motor (4), the inner end (61) of each blade (6) extending radially from the hub (5) and each blade comprising a leading edge (62) and a trailing edge (63). According to the invention, the impeller comprises a means (7) for the angular movement of the blades relative to the hub, such that the pitch of the blades can vary between an open configuration in which the leading and trailing edges (62, 63) of two adjacent blades are spaced apart from one another and a closed configuration in which the air passage of the housing is closed and in which the leading and trailing edges (62, 63) are moved towards one another such that the blades from a wall that obstructs the air passage. The invention also relates to a motor-driven fan unit including such an impeller, as well as a vehicle comprising said motor-driven fan unit.
IPC 8 full level
F04D 29/36 (2006.01); F04D 29/32 (2006.01)
CPC (source: EP)
F04D 29/326 (2013.01); F04D 29/362 (2013.01); F01P 7/06 (2013.01)
Citation (examination)
JP 2013064337 A 20130411 - HITACHI CONSTRUCTION MACHINERY
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2017103395 A2 20170622; WO 2017103395 A3 20171019; EP 3390839 A2 20181024; EP 3390839 B1 20210203; FR 3045740 A1 20170623; FR 3045740 B1 20190920
DOCDB simple family (application)
FR 2016053311 W 20161209; EP 16825473 A 20161209; FR 1562806 A 20151218