EP 4050213 B1 20230607 - MULTIPLE MEMBRANE PUMP
Title (en)
MULTIPLE MEMBRANE PUMP
Title (de)
MEHRFACHMEMBRANPUMPE
Title (fr)
POMPE À MEMBRANES MULTIPLES
Publication
Application
Priority
DE 102021104548 A 20210225
Abstract (en)
[origin: US2022268267A1] Multiple diaphragm pumps are known in the art that are operated by compressed air and in which the valves are controlled by a slide element. The slide element is magnetically actuated without mechanical engagement involved in the actuation. This has the consequence that only a small amount of force can be applied which may not be sufficient due to static friction of the valve seal. The invention presents a hybrid solution which facilitates a mechanical actuation of a valve piston provided for valve control as well as a magnetic overcoming of a dead center that may be reached by the valve piston and the diaphragm piston that actuates the diaphragms of the multiple diaphragm pump.
IPC 8 full level
F04B 43/073 (2006.01); F01L 25/08 (2006.01)
CPC (source: CN EP US)
F01L 25/08 (2013.01 - EP US); F04B 43/073 (2013.01 - CN); F04B 43/0736 (2013.01 - EP US); F04B 43/023 (2013.01 - 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 4050213 A1 20220831; EP 4050213 B1 20230607; EP 4050213 C0 20230607; CN 114962228 A 20220830; DE 102021104548 A1 20220825; ES 2951280 T3 20231019; PL 4050213 T3 20230821; US 2022268267 A1 20220825
DOCDB simple family (application)
EP 22152137 A 20220119; CN 202210160449 A 20220222; DE 102021104548 A 20210225; ES 22152137 T 20220119; PL 22152137 T 20220119; US 202217670442 A 20220212