Global Patent Index - EP 3336350 A3

EP 3336350 A3 20180815 - HIGH PRESSURE PLUNGER PUMP AND METHOD FOR INTERRUPTING A FLUID FLOW

Title (en)

HIGH PRESSURE PLUNGER PUMP AND METHOD FOR INTERRUPTING A FLUID FLOW

Title (de)

HOCHDRUCKPLUNGERPUMPE SOWIE VERFAHREN ZUR FUNKTIONSUNTERBRECHUNG EINES FLUIDSTROMS

Title (fr)

POMPE À PISTON PLONGEUR À HAUTE PRESSION AINSI QUE PROCÉDÉ D'INTERRUPTION DE FONCTION D'UN FLUX DE FLUIDE

Publication

EP 3336350 A3 20180815 (DE)

Application

EP 17205242 A 20171204

Priority

DE 102016124422 A 20161214

Abstract (en)

[origin: US2018163717A1] A high pressure plunger pump, having at least one plunger arrangement which comprises a working space connected to a valve seat suction line and a valve seat pressure line, in which a plunger is arranged in an axially reciprocable manner, wherein the valve seat pressure line is closeable by a pressure valve and the valve seat suction line by a suction valve, and the suction valve can be kept in an open position in a controlled manner as required by means of a counter-pressure device, is designed so that the counter-pressure device has a supply line via which a control fluid can be guided to the suction valve for keeping the suction valve open, wherein a low-pressure pump is connected to the supply line for generating pressure of the control fluid.

IPC 8 full level

F04B 7/02 (2006.01); F04B 49/00 (2006.01)

CPC (source: EP US)

F02M 59/442 (2013.01 - US); F02M 59/464 (2013.01 - EP US); F02M 63/0028 (2013.01 - EP US); F02M 63/0054 (2013.01 - EP US); F02M 63/0205 (2013.01 - EP US); F04B 7/02 (2013.01 - EP US); F04B 37/12 (2013.01 - EP US); F04B 49/002 (2013.01 - EP US); F04B 49/03 (2013.01 - EP US); F04B 49/246 (2013.01 - US); F04B 53/10 (2013.01 - EP US); F04B 53/109 (2013.01 - US); F04B 53/1087 (2013.01 - EP US); F04B 2201/06012 (2013.01 - US)

Citation (search report)

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)

EP 3336350 A2 20180620; EP 3336350 A3 20180815; EP 3336350 B1 20191009; DE 102016124422 A1 20180614; ES 2761902 T3 20200521; PL 3336350 T3 20200331; US 2018163717 A1 20180614

DOCDB simple family (application)

EP 17205242 A 20171204; DE 102016124422 A 20161214; ES 17205242 T 20171204; PL 17205242 T 20171204; US 201715839492 A 20171212