EP3735535B1 - Volumetrische dosierpumpe und dosiersystem mit mindestens einer solchen pumpe - Google Patents

Volumetrische dosierpumpe und dosiersystem mit mindestens einer solchen pumpe Download PDF

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Publication number
EP3735535B1
EP3735535B1 EP18842665.4A EP18842665A EP3735535B1 EP 3735535 B1 EP3735535 B1 EP 3735535B1 EP 18842665 A EP18842665 A EP 18842665A EP 3735535 B1 EP3735535 B1 EP 3735535B1
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EP
European Patent Office
Prior art keywords
stator
product
dosing
duct
coating layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP18842665.4A
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English (en)
French (fr)
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EP3735535A1 (de
Inventor
Alessandro Sacchet
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hero Europe SRL
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Hero Europe SRL
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Publication date
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Publication of EP3735535A1 publication Critical patent/EP3735535A1/de
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/107—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
    • F04C2/1071—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth the inner and outer member having a different number of threads and one of the two being made of elastic materials, e.g. Moineau type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/107—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2230/00—Manufacture
    • F04C2230/90—Improving properties of machine parts
    • F04C2230/91—Coating

Definitions

  • the present invention refers to a volumetric dosing pump for powdery, liquid, pasty or creamy products, and to a dosing system comprising at least one of such pumps.
  • the invention refers to a pump with progressive recesses for dosing and delivering powdery products or product having high viscosity, such as, for example, glues, mastexes, grease, paints, etc., and to a dosing system comprising at least one of such pumps.
  • the stators of these known pumps with progressive recesses are made of rubber, preferably vulcanized and compression molded.
  • Object of the present invention is solving the above prior art problems by providing a volumetric dosing pump with progressive recesses and a dosing system comprising at least one of such pumps, which allow their use to deliver products containing aggressive solvents, keeping at the same time a reduced pump cost.
  • the volumetric dosing pump 10 in particular for delivering and dosing powdery, liquid, pasty or creamy products, comprises a first duct 5 for entering the product to be dosed, a second duct 9 for exiting such dosed product, an internal recess 12 connected to the first duct 5 for entering the product to be dosed and at least one pumping element with progressive recesses 7, which doses such product, operatively connected to motor means, composed for example of an electric driving motor (not shown in the Figures), and fluid connected to the internal recess 12 and to the second duct 9 for exiting such dosed product.
  • motor means composed for example of an electric driving motor (not shown in the Figures)
  • the pumping element with progressive recesses 7 comprises an external stator case 14 and an internal rotor 15 driven in rotation by the motor means, such internal rotor 15 being shaped as a worm screw with progressive recesses whose relative rotation with respect to the stator 14 causes a translation movement of the product therein.
  • the pump 10 with progressive recesses is actuated by the motor means, during the rotation movement of its internal rotor 15, it transfers certain amounts of product from the first duct 5 for sucking such product to be dosed to the second exit duct 9.
  • the stator further comprises an internal surface 16 in contact with the rotor 15 which, similarly thereto, is shaped as a worm screw or a coil, said internal surface 16 being coated with a coating layer 18 made of a different material with respect to the material of which the stator 14 is made.
  • the stator 14 is made of rubber, for example thermoplastic rubber, through moulding, and the coating layer 18 is made of polyethylene.
  • stator 14 and the coating layer 18 are made through injection co-moulding of the stator 14 and of the coating layer 18; preferably, the stator 14 and the coating layer 18 are made through co-moulding of rubber and of a layer of polyethylene.
  • the coating layer 18 made of polyethylene allows using the pump with materials containing the most used solvents, without damaging the surface of the stator 14 and with a reduced cost.
  • a dosing/delivering system comprises at least one managing and actuating device, such managing and actuating device comprising motor means, and at least one dosing pump 10 as previously described, operatively connected to such motor means, for example by interposing at least one related rotating shaft.
  • system according to the present invention can further comprise means for supplying and/or storing the product to be dosed and delivered by the dosing pump 10, fluid connected to the first suction duct 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Fertilizing (AREA)

Claims (3)

  1. Volumetrische Dosierpumpe (10) zum Ausbringen und Dosieren von pulverförmigen, flüssigen, pastösen oder cremigen Produkten, d. h. Leimen, Kitten, Fetten, Farben, wobei die Dosierpumpe (10) einen ersten Einlasskanal (5) für das zu dosierende Produkt umfasst, einen zweiten Auslasskanal (9) für das dosierte Produkt, einen inneren Hohlraum (12), der mit dem ersten Einlasskanal (5) des zu dosierenden Produkts verbunden ist, und mindestens ein Pumpelement mit progressiven Hohlräumen (7), das dieses dosiert Produkt, betrieblich mit Motormitteln verbunden und strömungsmäßig mit dem inneren Hohlraum (12) und dem zweiten Auslasskanal (9) dieses dosierten Produkts verbunden, wobei das Pumpelement (7) mit progressiven Hohlräumen ein äußeres Statorgehäuse (14) und eine umfasst Innenrotor (15), dessen Drehung durch die Motormittel gesteuert wird, wobei der Innenrotor (15) wie eine Schnecke mit progressiven Hohlräumen geformt ist und der Stator eine Innenfläche (16) aufweist, die mit dem Rotor (15) in Kontakt steht und die Form hat einer Schneckenschraube, wobei die Innenfläche (16) mit einer Überzugsschicht (18) aus einem anderen Material als dem Material, aus dem der Stator (14) besteht, bedeckt ist, dadurch gekennzeichnet, dass der Stator (14) und die Die Abdeckschicht (18) wird durch gemeinsames Spritzgießen des Stators (14) und der Abdeckschicht (18) hergestellt, wobei der Stator (14) aus Gummi und die Abdeckschicht (18) aus Polyethylen besteht.
  2. Volumetrische Dosierpumpe (10) nach Anspruch 1, dadurch gekennzeichnet, dass der Stator (14) aus thermoplastischem Gummi besteht.
  3. Dosier-/Abgabesystem mit mindestens einer Verwaltungs- und Antriebsvorrichtung, wobei die Verwaltungs- und Antriebsvorrichtung Motormittel und mindestens eine volumetrische Dosierpumpe (10) nach einem der vorherigen Ansprüche umfasst, die betriebsmäßig mit den Motormitteln verbunden ist.
EP18842665.4A 2018-01-05 2018-12-21 Volumetrische dosierpumpe und dosiersystem mit mindestens einer solchen pumpe Active EP3735535B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT201800000549A IT201800000549A1 (it) 2018-01-05 2018-01-05 Pompa dosatrice volumetrica e sistema di dosaggio comprendente almeno una tale pompa
PCT/IT2018/000170 WO2019135261A1 (en) 2018-01-05 2018-12-21 Volumetric dosing pump and dosing system comprising at least one of such pumps

Publications (2)

Publication Number Publication Date
EP3735535A1 EP3735535A1 (de) 2020-11-11
EP3735535B1 true EP3735535B1 (de) 2024-07-31

Family

ID=61952794

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18842665.4A Active EP3735535B1 (de) 2018-01-05 2018-12-21 Volumetrische dosierpumpe und dosiersystem mit mindestens einer solchen pumpe

Country Status (7)

Country Link
US (1) US20200370555A1 (de)
EP (1) EP3735535B1 (de)
CN (1) CN111542701A (de)
ES (1) ES2991953T3 (de)
IT (1) IT201800000549A1 (de)
PL (1) PL3735535T3 (de)
WO (1) WO2019135261A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2740725C1 (ru) * 2020-04-08 2021-01-20 Общество с ограниченной ответственностью "ПРОИЗВОДСТВЕННАЯ КОМПАНИЯ "МОНОРОТОР" Одновинтовой микродозатор

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4849201A (en) * 1988-09-02 1989-07-18 The United States Of America As Represented By The Secretary Of The Army Process for preparing chlorinated lime
CN1093607C (zh) * 1998-09-25 2002-10-30 振源(厦门)工业有限公司 制造密封式微型潜水泵的方法
US6220838B1 (en) * 1999-11-03 2001-04-24 Dyno Nobel Inc. Progressive cavity pump with meltable stator
US7442019B2 (en) * 2002-10-21 2008-10-28 Noetic Engineering Inc. Stator of a moineau-pump
CN1421613A (zh) * 2002-12-22 2003-06-04 崔乃林 用聚合材料和陶瓷制造的螺杆泵及其制造方法
US8197241B2 (en) * 2007-12-18 2012-06-12 Schlumberger Technology Corporation Nanocomposite Moineau device
US20100038142A1 (en) * 2007-12-18 2010-02-18 Halliburton Energy Services, Inc. Apparatus and method for high temperature drilling operations
DE102008039973A1 (de) * 2008-08-27 2010-03-04 Wmf Württembergische Metallwarenfabrik Ag Exzenterschneckenpumpe
US20110308557A1 (en) * 2010-06-16 2011-12-22 Stewart Kaiser Combination Anti-Microbial Drain Pan Float and High Temperature Brine Injected Automated Drain Cleaner
WO2012024215A2 (en) * 2010-08-16 2012-02-23 National Oilwell Varco, L.P. Reinforced stators and fabrication methods
US9796837B2 (en) * 2012-07-16 2017-10-24 Polyone Corporation Polyethylene compounds having non-migratory slip properties
US9896885B2 (en) * 2015-12-10 2018-02-20 Baker Hughes Incorporated Hydraulic tools including removable coatings, drilling systems, and methods of making and using hydraulic tools

Also Published As

Publication number Publication date
US20200370555A1 (en) 2020-11-26
CN111542701A (zh) 2020-08-14
IT201800000549A1 (it) 2018-04-05
WO2019135261A1 (en) 2019-07-11
ES2991953T3 (es) 2024-12-05
PL3735535T3 (pl) 2024-12-16
EP3735535A1 (de) 2020-11-11

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