EP 3969754 B1 20240515 - FLUID CIRCULATION PUMP
Title (en)
FLUID CIRCULATION PUMP
Title (de)
FLUIDZIRKULATIONSPUMPE
Title (fr)
POMPE DE CIRCULATION DE FLUIDE
Publication
Application
Priority
- FR 1905029 A 20190514
- EP 2020063388 W 20200513
Abstract (en)
[origin: WO2020229568A1] Fluid circulation pump (100) comprising a suction inlet (41), a delivery outlet (42) and a movable part (45) that can move in the chamber (44). The pump (100) comprises first upstream (120a) and downstream (121a) circular lips such that: - over a first portion (P1) of the movement of said movable part (45) in the chamber (44), the first upstream circular lip (120a) then allows a free flow of fluid between the first space (123a) and the suction inlet (41); and that - over a second portion (P2) of said movement, the first upstream circular lip (120a) provides sealing that prevents the flow of fluid towards the suction inlet (41), the first downstream circular lip (121a) allowing the flow of fluid from the first space (123a) towards said delivery outlet (42) and preventing the flow of fluid towards said first space (123a).
IPC 8 full level
F04B 19/20 (2006.01); F04B 43/00 (2006.01); F04B 43/02 (2006.01); F04B 43/08 (2006.01); F04B 43/09 (2006.01); F04B 53/10 (2006.01)
CPC (source: EP US)
F04B 19/20 (2013.01 - EP); F04B 43/0054 (2013.01 - EP); F04B 43/028 (2013.01 - EP); F04B 43/084 (2013.01 - EP); F04B 43/09 (2013.01 - EP US); F04B 53/1047 (2013.01 - EP)
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 2020229568 A1 20201119; CN 113853481 A 20211228; CN 113853481 B 20230822; EP 3969754 A1 20220323; EP 3969754 B1 20240515; FR 3096094 A1 20201120; FR 3096094 B1 20221125; US 2022243716 A1 20220804
DOCDB simple family (application)
EP 2020063388 W 20200513; CN 202080037098 A 20200513; EP 20724178 A 20200513; FR 1905029 A 20190514; US 202017611022 A 20200513