Global Patent Index - EP 3268607 A1

EP 3268607 A1 20180117 - HYDRAULIC PUMP SYSTEM FOR HANDLING A SLURRY MEDIUM

Title (en)

HYDRAULIC PUMP SYSTEM FOR HANDLING A SLURRY MEDIUM

Title (de)

HYDRAULIKPUMPENSYSTEM ZUR HANDHABUNG EINES SCHLAMMMEDIUMS

Title (fr)

SYSTÈME DE POMPE HYDRAULIQUE POUR TRAITER UN MILIEU DE COULIS

Publication

EP 3268607 A1 20180117 (EN)

Application

EP 16718503 A 20160303

Priority

  • AU 2015900822 A 20150309
  • NL 2016050147 W 20160303

Abstract (en)

[origin: WO2016144161A1] This disclosure relates to a hydraulic pump system for handling a slurry medium at least comprising at least two reciprocating positive displacement pumps, both pumps being arranged for alternating intake of slurry medium via a suction inlet and discharge of slurry medium via a discharge outlet, and piston/cylinder discharge valves for alternating closing and opening each discharge outlet. In a first aspect, embodiments are disclosed of a hydraulic pump system for handling a slurry medium, comprising at least two reciprocating positive displacement pumps, both pumps being arranged for alternating intake of slurry medium via a suction inlet and discharge of slurry medium via a discharge outlet, and piston/cylinder discharge valves for alternating closing and opening each discharge outlet, as well as control means for controlling the alternate closing and opening of both piston/cylinder discharge valves, such that during operation no volume difference occurs in the discharge of slurry medium. In another aspect of the hydraulic pump system said control means comprise a lever assembly interconnecting the pistons of both piston/cylinder driven valves.

IPC 8 full level

F04B 9/117 (2006.01); F04B 15/02 (2006.01)

CPC (source: CN EP)

F04B 9/1178 (2013.01 - CN EP); F04B 15/02 (2013.01 - CN EP)

Citation (search report)

See references of WO 2016144161A1

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)

WO 2016144161 A1 20160915; AU 2016229643 A1 20170907; AU 2016229643 B2 20201001; AU 2020294221 A1 20210128; BR 112017019112 A2 20180424; BR 112017019112 B1 20230214; CA 2977442 A1 20160915; CA 2977442 C 20211026; CN 107407266 A 20171128; CN 107407266 B 20210608; EP 3268607 A1 20180117; EP 3268607 B1 20201028; JP 2018507979 A 20180322; JP 6701216 B2 20200527; ZA 201705784 B 20201125

DOCDB simple family (application)

NL 2016050147 W 20160303; AU 2016229643 A 20160303; AU 2020294221 A 20201223; BR 112017019112 A 20160303; CA 2977442 A 20160303; CN 201680014425 A 20160303; EP 16718503 A 20160303; JP 2017543947 A 20160303; ZA 201705784 A 20170824