Global Patent Index - EP 4301981 A1

EP 4301981 A1 20240110 - METHOD AND PUMP FOR LOW-FLOW PROPORTIONAL METERING

Title (en)

METHOD AND PUMP FOR LOW-FLOW PROPORTIONAL METERING

Title (de)

VERFAHREN UND PUMPE ZUR PROPORTIONALEN DOSIERUNG MIT GERINGEM DURCHFLUSS

Title (fr)

PROCEDE ET POMPE DE DOSAGE PROPORTIONNEL A FAIBLE DEBIT

Publication

EP 4301981 A1 20240110 (FR)

Application

EP 22709673 A 20220225

Priority

  • FR 2102019 A 20210302
  • EP 2022054788 W 20220225

Abstract (en)

[origin: WO2022184576A1] The present invention relates to a proportional metering method and its associated pump, which comprises: - a hydraulic machine (1) enclosing a member (16) suitable for performing an alternative movement, supply to the machine at the inlet triggering an alternative translational movement by the member (16), - a volumetric pump (4), provided with a rotational axis (42), an inlet (40) intended to be placed in fluid communication with an additive tank, and an outlet (41) in fluid communication (51) with the outlet (11) of the machine, - a movement converter (2) for converting the alternative translational movement of the member (16) into a rotational movement, the rotational movement being transmitted to the rotational axis of the volumetric pump (4), such that supplying the machine operates the volumetric pump, which thus supplies the outlet of the hydraulic machine with additive.

IPC 8 full level

F04B 9/04 (2006.01); F04B 9/10 (2006.01); F04B 13/00 (2006.01); F04B 23/02 (2006.01); F04B 43/12 (2006.01)

CPC (source: EP IL)

F04B 9/047 (2013.01 - EP IL); F04B 9/10 (2013.01 - EP IL); F04B 13/00 (2013.01 - EP IL); F04B 23/02 (2013.01 - EP IL); F04B 43/12 (2013.01 - EP IL)

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

Designated validation state (EPC)

KH MA MD TN

DOCDB simple family (publication)

WO 2022184576 A1 20220909; CA 3209186 A1 20220909; CN 116917619 A 20231020; EP 4301981 A1 20240110; FR 3120402 A1 20220909; FR 3120402 B1 20230414; IL 305387 A 20231001; JP 2024512896 A 20240321

DOCDB simple family (application)

EP 2022054788 W 20220225; CA 3209186 A 20220225; CN 202280018749 A 20220225; EP 22709673 A 20220225; FR 2102019 A 20210302; IL 30538723 A 20230820; JP 2023553118 A 20220225