EP 4084664 B1 20240207 - A PUMP FOR USE IN A VACUUM CLEANER
Title (en)
A PUMP FOR USE IN A VACUUM CLEANER
Title (de)
PUMPE ZUR VERWENDUNG IN EINEM STAUBSAUGER
Title (fr)
POMPE À UTILISER DANS UN ASPIRATEUR
Publication
Application
Priority
- EP 19219950 A 20191230
- EP 2020086926 W 20201218
Abstract (en)
[origin: EP3845106A1] A pump is for generating a suction for application to a vacuum cleaner dirty air inlet. There is a motor inside a motor outer casing and a fan outside the motor outer casing having a main inlet and a main outlet. The fan generates a main suction flow between the main inlet and the main outlet and creates a region of under pressure. This under pressure is used to drive a secondary flow between a cooling air inlet to the motor outer casing and a cooling air outlet from the motor outer casing. The secondary air flow is induced by making use of an under pressure generated by the fan.
IPC 8 full level
A47L 9/22 (2006.01); A47L 9/28 (2006.01); F04D 25/08 (2006.01); F04D 29/58 (2006.01)
CPC (source: EP US)
A47L 9/22 (2013.01 - EP US); A47L 9/2889 (2013.01 - EP US); F04D 25/082 (2013.01 - EP US); F04D 29/5806 (2013.01 - EP US)
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)
EP 3845106 A1 20210707; CN 115297753 A 20221104; EP 4084664 A1 20221109; EP 4084664 B1 20240207; JP 2023508583 A 20230302; US 2023041102 A1 20230209; WO 2021136682 A1 20210708
DOCDB simple family (application)
EP 19219950 A 20191230; CN 202080089133 A 20201218; EP 2020086926 W 20201218; EP 20824286 A 20201218; JP 2022540514 A 20201218; US 202017790067 A 20201218