EP 1995408 B1 20160629 - Pumping unit for rotary vane pump
Title (en)
Pumping unit for rotary vane pump
Title (de)
Pumpeneinheit für Flügelzellenpumpen
Title (fr)
Unité de pompage d'une pompe à palettes
Publication
Application
Priority
EP 07425310 A 20070522
Abstract (en)
[origin: EP1995408A1] Pumping unit (10) for rotary vane pumps, in particular for oil pumps, comprising a plurality of vanes (21,22,23) and means adapted to activate their movement. The pumping unit (10) comprises a rotor (16) and a stator (12) having a profile (12a) for vane sliding motion. Each vane (21,22,23) is inserted into a respective diametric opening (16b) provided in the rotor (16) so that the rotor (16) rotation generates the motion of the vanes with the ends (21a,22a,23a) of each vane(21,22,23) that remain in constant contact with the internal profile (12a) of the stator (12), thus defining a desmodromic translation movement of the vane (21,22,23) inside the diametric openings 16b) of the rotor (16). The number Np of the vanes is such that Np‰¥3, these vanes generating a number Nv of compartments (17a) so that Nv=2Np.
IPC 8 full level
F01C 21/08 (2006.01); F04C 2/344 (2006.01)
CPC (source: EP)
F01C 21/08 (2013.01); F01C 21/0809 (2013.01); F01C 21/0881 (2013.01); F04C 2/3442 (2013.01); F04C 2240/50 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
DOCDB simple family (application)
EP 07425310 A 20070522