EP 2699800 A2 20140226 - FLUID PUMP AND METHOD OF PUMPING A FLUID
Title (en)
FLUID PUMP AND METHOD OF PUMPING A FLUID
Title (de)
FLUIDPUMPE UND VERFAHREN ZUM PUMPEN EINES FLUIDS
Title (fr)
POMPE À FLUIDE ET MÉTHODE DE POMPAGE DE FLUIDE
Publication
Application
Priority
- US 201161476430 P 20110418
- GB 201109776 A 20110610
- US 2012034070 W 20120418
Abstract (en)
[origin: GB2490180A] A fluid, e.g. dry vacuum, pump comprises an inlet 891 and outlet 895 and a cylinder 802 defining an internal volume. A compression member 810 e.g. a piston or diaphragm moves within the cylinder and a valve means 841H, 835H is driven by actuators subject to a controller. The valves selectively allow fluid either to be drawn from the fluid inlet and into the cylinder or expelled by the translation of at least a portion of the compression member. The valves may be respective single inlet and outlet poppet type valves opening directly to the cylinder (Fig. 2) or may comprise an auxiliary valve 841H with either separate inlet and outlet valves (Fig. 4) or a shuttle or slide valve 835H. The valve actuators and piston or diaphragm drivers may be piezo, electromagnetic or solenoid elements. The piston may be coupled to its drive by a coupling allowing axial float.
IPC 8 full level
F04B 35/04 (2006.01); F04B 17/03 (2006.01)
CPC (source: EP GB US)
F04B 7/0003 (2013.01 - GB); F04B 7/0011 (2013.01 - EP US); F04B 7/0015 (2013.01 - GB); F04B 7/0057 (2013.01 - GB); F04B 7/0076 (2013.01 - EP GB US); F04B 7/0225 (2013.01 - EP US); F04B 7/0266 (2013.01 - EP US); F04B 17/00 (2013.01 - EP US); F04B 17/003 (2013.01 - GB); F04B 17/03 (2013.01 - EP US); F04B 17/04 (2013.01 - EP US); F04B 17/042 (2013.01 - GB); F04B 35/04 (2013.01 - GB); F04B 35/045 (2013.01 - EP US); F04B 37/14 (2013.01 - EP US); F04B 39/04 (2013.01 - GB); F04B 39/08 (2013.01 - EP GB US); F04B 39/10 (2013.01 - GB); F04B 49/225 (2013.01 - EP US); F04B 53/18 (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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
GB 201109776 D0 20110727; GB 2490180 A 20121024; GB 2490180 B 20130417; EP 2699800 A2 20140226; EP 2699800 A4 20150624; EP 2699800 B1 20180718; US 2014134003 A1 20140515; WO 2012145395 A2 20121026; WO 2012145395 A3 20140130
DOCDB simple family (application)
GB 201109776 A 20110610; EP 12773702 A 20120418; US 2012034070 W 20120418; US 201214112337 A 20120418