EP 2946110 B1 20161123 - METERING DEVICE FOR INTRODUCING A LIQUID ADDITIVE INTO A STREAM OF MAIN LIQUID
Title (en)
METERING DEVICE FOR INTRODUCING A LIQUID ADDITIVE INTO A STREAM OF MAIN LIQUID
Title (de)
DOSIERVORRICHTUNG ZUM EINBRINGEN EINES FLÜSSIGEN ZUSATZSTOFFS IN EINEN STROM EINER HAUPTFLÜSSIGKEIT
Title (fr)
DISPOSITIF DE DOSAGE POUR INTRODUIRE UN ADDITIF LIQUIDE DANS UN COURANT DE LIQUIDE PRINCIPAL
Publication
Application
Priority
- FR 1350397 A 20130117
- IB 2013061042 W 20131217
Abstract (en)
[origin: WO2014111770A1] Metering device for introducing a liquid additive into a stream of main liquid flowing along a pipe, comprising a pump (3) having a reciprocating differential piston for withdrawing the additive (A) from a container (2) and metering it, this pump comprising a first inlet (8) to receive a flow of main liquid which drives the pump, a second inlet (9) for picking up the additive and an outlet (10) for the mixture of additive and main liquid, the device comprising a Venturi (11) installed in the pipe, the pump (3) being connected in parallel with the Venturi (11), the first inlet (8) of the pump being connected by a first line (12) to the inlet of the Venturi while the outlet (10) of the pump is connected by a second line (13) to the throat (11c) of the Venturi; the device comprises a means (E) for varying the restriction at the neck (11c) of the Venturi, and a means (G) sensitive to the pressure drop across the pump (3) for controlling the means (E) of restricting the neck of the Venturi in order to reduce the bore section when the pressure drop across the pump increases, and to increase the bore section when the pressure drop across the pump decreases.
IPC 8 full level
F04B 9/105 (2006.01); B01F 5/04 (2006.01); F04B 13/02 (2006.01); F04B 23/10 (2006.01); F04F 5/10 (2006.01); F04F 5/46 (2006.01)
CPC (source: EP IL US)
B01F 25/31232 (2022.01 - IL US); B01F 25/31242 (2022.01 - EP IL US); B01F 25/312511 (2022.01 - IL); B01F 25/3143 (2022.01 - IL US); B01F 25/316 (2022.01 - EP IL US); F04B 9/1053 (2013.01 - EP IL US); F04B 13/02 (2013.01 - EP IL US); F04B 23/106 (2013.01 - EP IL US); F04F 5/10 (2013.01 - EP IL US); F04F 5/12 (2013.01 - IL US); F04F 5/461 (2013.01 - EP IL US); F04F 5/463 (2013.01 - EP IL US); F04F 5/48 (2013.01 - IL US); B01F 25/312511 (2022.01 - 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
DOCDB simple family (publication)
FR 3001003 A1 20140718; FR 3001003 B1 20150320; AR 094500 A1 20150805; AU 2013373659 A1 20150806; AU 2013373659 B2 20161222; BR 112015016794 A2 20170711; CA 2897457 A1 20140724; CA 2897457 C 20171017; CN 105026754 A 20151104; CN 105026754 B 20170426; DK 2946110 T3 20170206; EA 027193 B1 20170630; EA 201591336 A1 20151130; EP 2946110 A1 20151125; EP 2946110 B1 20161123; ES 2609034 T3 20170418; HK 1216436 A1 20161111; HU E031933 T2 20170828; IL 239979 A0 20150831; IL 239979 B 20200831; JP 2016509649 A 20160331; JP 6300825 B2 20180328; KR 102144559 B1 20200813; KR 20150110578 A 20151002; MX 2015009227 A 20160425; MX 370015 B 20191128; MY 182941 A 20210205; NZ 710112 A 20171222; PL 2946110 T3 20170630; PT 2946110 T 20170113; SG 11201505583S A 20150828; US 10197071 B2 20190205; US 2015361994 A1 20151217; WO 2014111770 A1 20140724; WO 2014111770 A8 20150903
DOCDB simple family (application)
FR 1350397 A 20130117; AR P140100159 A 20140116; AU 2013373659 A 20131217; BR 112015016794 A 20131217; CA 2897457 A 20131217; CN 201380073216 A 20131217; DK 13826872 T 20131217; EA 201591336 A 20131217; EP 13826872 A 20131217; ES 13826872 T 20131217; HK 16104329 A 20160415; HU E13826872 A 20131217; IB 2013061042 W 20131217; IL 23997915 A 20150716; JP 2015553183 A 20131217; KR 20157021393 A 20131217; MX 2015009227 A 20131217; MY PI2015702337 A 20131217; NZ 71011213 A 20131217; PL 13826872 T 20131217; PT 13826872 T 20131217; SG 11201505583S A 20131217; US 201314761555 A 20131217