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1. WO2007045733 - EQUIPMENT FOR MEASURING AND INJECTING AT LEAST TWO PRODUCTS INTO A LIQUID CURRENT

Publication Number WO/2007/045733
Publication Date 26.04.2007
International Application No. PCT/FR2006/002095
International Filing Date 13.09.2006
IPC
G05D 11/00 2006.01
GPHYSICS
05CONTROLLING; REGULATING
DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
11Control of flow ratio
CPC
G05D 11/008
GPHYSICS
05CONTROLLING; REGULATING
DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
11Ratio control
008involving a fluid operating a pump motor
Applicants
  • DOSATRON INTERNATIONAL [FR]/[FR] (AE, AG, AL, AM, AT, AU, AZ, BA, BB, BE, BF, BG, BJ, BR, BW, BY, BZ, CA, CF, CG, CH, CI, CM, CN, CO, CR, CU, CY, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, FR, GA, GB, GD, GE, GH, GM, GN, GQ, GR, GW, HN, HR, HU, ID, IE, IL, IN, IS, IT, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MC, MD, MG, MK, ML, MN, MR, MW, MX, MY, MZ, NA, NE, NG, NI, NL, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SI, SK, SL, SM, SN, SV, SY, SZ, TD, TG, TJ, TM, TN, TR, TT, TZ, UA, UG, UZ, VC, VN, ZA, ZM, ZW)
  • DARBOIS, Matthieu [FR]/[FR] (UsOnly)
  • VACHER, David [FR]/[FR] (UsOnly)
Inventors
  • DARBOIS, Matthieu
  • VACHER, David
Agents
  • MICHARDIERE, Bernard
Priority Data
051056217.10.2005FR
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) EQUIPMENT FOR MEASURING AND INJECTING AT LEAST TWO PRODUCTS INTO A LIQUID CURRENT
(FR) EQUIPEMENT POUR DOSER ET INJECTER AU MOINS DEUX PRODUITS DANS UN COURANT DE LIQUIDE
Abstract
(EN)
The invention concerns an equipment for measuring and injecting at least two products into a main liquid current, comprising at least two metering devices (DA, Db) mounted in parallel, each metering device including a hydraulic motor actuated by the main liquid and pumping and injecting means driven by the hydraulic motor. A variable throttling means (Sa, Sb), whereof the passage cross-section can increases with the flow rate of the liquid passing therethrough, countering return means (Ra, Rb), is provided on the liquid current of each metering device (Da, Db), to create a supplementary pressure drop added to the one generated by the metering device itself.
(FR)
Equipement pour doser et injecter au moins deux produits, dans un courant de liquide principal, comprenant au moins deux dispositifs de dosage (Da, Db) montés en parallèle, chaque dispositif de dosage comprenant un moteur hydraulique actionné par le liquide principal et un moyen de pompage et d'injection entraîné par le moteur hydraulique. Un moyen d'étranglement variable (Sa, Sb), dont la section de passage peut augmenter avec le débit de liquide qui le traverse, à l'encontre d'un moyen de rappel (Ra, Rb), est prévu sur le courant de liquide de chaque dispositif de dosage (Da, Db), pour créer une perte de charge additionnelle s'ajoutant à celle générée par le dispositif de dosage lui-même.
Also published as
EP6808121
Latest bibliographic data on file with the International Bureau