EP 3368769 B1 20210804 - SOLENOID PUMP DRIVER
Title (en)
SOLENOID PUMP DRIVER
Title (de)
MAGNETPUMPENANTRIEB
Title (fr)
DISPOSITIF DE COMMANDE DE POMPE À SOLÉNOÏDE
Publication
Application
Priority
- GB 201519246 A 20151030
- GB 2016053371 W 20161031
Abstract (en)
[origin: WO2017072532A1] Method of driving a solenoid pump of the type comprising a metal shuttle (4) urged by a solenoid (5) against a spring (3), wherein the spring provides the force for the pumping stroke of the shuttle, the method comprising: applying a periodic driving voltage to the solenoid, each period of the driving voltage comprising a first portion during which the driving voltage increases from a minimum voltage to a maximum voltage to compress the spring, a second portion during which the driving voltage decreases from the maximum voltage to the minimum voltage to release the spring, and a third portion during which the driving voltage is maintained at the minimum voltage; wherein the duration of the second portion is substantially less than the duration of the first portion and may be substantially instantaneous. The driving voltage increases from the minimum voltage to the maximum voltage substantially linearly during the first portion, such that the driving voltage has a sawtooth waveform.
IPC 8 full level
F04B 17/04 (2006.01); F04B 35/04 (2006.01); F04B 49/06 (2006.01)
CPC (source: EP GB US)
F04B 17/00 (2013.01 - GB); F04B 17/04 (2013.01 - EP GB US); F04B 17/046 (2013.01 - EP US); F04B 35/045 (2013.01 - EP GB US); F04B 49/06 (2013.01 - GB); F04B 49/065 (2013.01 - EP US); F24F 13/00 (2013.01 - GB); F24F 13/222 (2013.01 - GB); F04B 2203/0402 (2013.01 - EP US); F04B 2203/0404 (2013.01 - EP US)
Citation (examination)
- JP S5929780 A 19840217 - YAMATAKE HONEYWELL CO LTD
- JP S59211775 A 19841130 - SHIZUOKA SEIKI CO LTD
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 2017072532 A1 20170504; EP 3368769 A1 20180905; EP 3368769 B1 20210804; ES 2884113 T3 20211210; GB 201519246 D0 20151216; GB 2543832 A 20170503; GB 2543832 B 20200311; US 2018320673 A1 20181108
DOCDB simple family (application)
GB 2016053371 W 20161031; EP 16791063 A 20161031; ES 16791063 T 20161031; GB 201519246 A 20151030; US 201615771494 A 20161031