(19)
(11) EP 2 211 059 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
06.08.2014 Bulletin 2014/32

(43) Date of publication A2:
28.07.2010 Bulletin 2010/30

(21) Application number: 10150603.8

(22) Date of filing: 13.01.2010
(51) International Patent Classification (IPC): 
F04C 2/10(2006.01)
 F04C 15/00(2006.01)
(84) Designated Contracting States:
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 SE SI SK SM TR
Designated Extension States:
AL BA RS

(30) Priority: 26.01.2009 IT MI20090017 U

(71) Applicant: Fluid-O-Tech S.r.l.
20094 Corsico (MI) (IT)

(72) Inventors:
  • Andreis, Vittorio
    20146 Milano MI (IT)
  • Copelli, Stefano
    20032 Cormano MI (IT)

(74) Representative: Branca, Emanuela et al
Barzanò & Zanardo Milano S.p.A. Via Borgonuovo, 10
20121 Milano
20121 Milano (IT)

   


(54) Separation system between the high-pressure chamber and the low-pressure chamber in a volumetric pump


(57) The finding describes a separation system (10) between the high-pressure chamber and the low-pressure chamber in a volumetric pump of the type with gears (36, 38). The separation system (10) comprises a hub (12), torsionally forming a unit with a central pin (14) around which rotates a first gear (36) of the gears of the pump, and at least one half-moon shaped dividing wall (16), the function of which is to separate the high and low pressure chambers that are created following the rotation of the gears (36, 38) of the pump. The half-moon shaped dividing wall (16) consists of a separate component with respect to the hub (12) and is provided with connection means (18, 20) to the body of the hub (12) itself, so as to improve the efficiency and the resistance to wear of the separation system (10) and of the entire pump.







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Search report