EP 4232716 A1 20230830 - PUMP GROUP
Title (en)
PUMP GROUP
Title (de)
PUMPENGRUPPE
Title (fr)
GROUPE DE POMPES
Publication
Application
Priority
- IT 202000025315 A 20201026
- IB 2021058797 W 20210927
Abstract (en)
[origin: WO2022090829A1] The invention is a pump group (1) fluidically connectable to a cooling system for an operating group, such as, for example, an internal combustion engine, an electric motor or a battery group of a vehicle. The pump group (1) comprises an impeller (2) and a shaft (3) on which the impeller (2) is integrally mounted. The pump group (1) has at least one drive of the electric type, in fact comprising an electric motor (4) comprising a rotor (41) integrally mounted on the shaft (3) and a stator (42). Furthermore, the pump group (1) comprises a pump body (6) comprising: - a first casing (61) which houses the impeller (2) in an impeller chamber (610); - a second casing (62) in which the electric motor (4) is housed in a motor chamber (620), wherein the second casing (62) comprises an intermediate tubular wall (625) positioned between the rotor (41) and the stator (42) so that a rotor chamber (621) and a stator chamber (622) are defined in the motor chamber (620), mutually tightly separated; Specifically, the first casing (61) and the second casing (62) are separated by a first separation wall (624) comprising an impeller surface (628) facing into the impeller chamber (610) and a motor surface (629) facing into the motor chamber (620). Even more specifically, the pump group (1) comprises a thermally conductive resin that at least partially covers the motor surface (629), to cool the stator chamber (622) by conduction.
IPC 8 full level
F04D 13/06 (2006.01); F04D 29/42 (2006.01); F04D 29/58 (2006.01)
CPC (source: EP)
F04D 13/0606 (2013.01); F04D 29/426 (2013.01); F04D 29/5806 (2013.01); F04D 29/5813 (2013.01); F04D 29/5893 (2013.01); F05D 2300/44 (2013.01); F05D 2300/5024 (2013.01)
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
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2022090829 A1 20220505; CN 116583676 A 20230811; EP 4232716 A1 20230830; IT 202000025315 A1 20220426; MX 2023003495 A 20230718
DOCDB simple family (application)
IB 2021058797 W 20210927; CN 202180067430 A 20210927; EP 21789827 A 20210927; IT 202000025315 A 20201026; MX 2023003495 A 20210927