EP3557059B1 - Pompe volumétrique à membrane - Google Patents

Pompe volumétrique à membrane Download PDF

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Publication number
EP3557059B1
EP3557059B1 EP19161805.7A EP19161805A EP3557059B1 EP 3557059 B1 EP3557059 B1 EP 3557059B1 EP 19161805 A EP19161805 A EP 19161805A EP 3557059 B1 EP3557059 B1 EP 3557059B1
Authority
EP
European Patent Office
Prior art keywords
guide cylinder
piston
pump
casing
flexible membrane
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
EP19161805.7A
Other languages
German (de)
English (en)
Other versions
EP3557059A1 (fr
Inventor
Giuseppe Orlandini
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.)
Annovi Reverberi SpA
Original Assignee
Annovi Reverberi SpA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Annovi Reverberi SpA filed Critical Annovi Reverberi SpA
Publication of EP3557059A1 publication Critical patent/EP3557059A1/fr
Application granted granted Critical
Publication of EP3557059B1 publication Critical patent/EP3557059B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
    • F04B43/06—Pumps having fluid drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/06—Venting

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)

Claims (7)

  1. Pompe à membrane volumétrique (100), comprenant :
    - un cylindre de guidage (110)
    - une membrane flexible (150), placée de manière à sceller une extrémité axiale du cylindre de guidage (110),
    - une tête (155) destinée à définir une chambre de pompage (160) avec la membrane flexible (150),
    - un piston (115) fixé à la membrane flexible (150) et glissable dans le cylindre de guidage (110) entre une position du point mort haut et une position du point mort bas,
    - une bague d'étanchéité coaxiale (200) axialement bloquée à l'intérieur d'une cavité correspondante du piston (115), de manière à être interposée entre une surface latérale extérieure du piston (115) et une surface latérale intérieure du cylindre de guidage (110),
    - une chambre intermédiaire (195) définie à l'intérieur du cylindre de guidage (110), entre la membrane flexible (150) et le piston (115),
    - un boîtier (140) définissant un volume interne (145) destiné à être rempli d'huile lubrifiante, et
    - au moins un passage primaire (205) destiné à placer la chambre intermédiaire (195) en communication avec le volume interne (145) du boîtier (140), lorsque le piston (115) est en position de point mort bas
    dans laquelle le volume interne (145) du boîtier (140) comprend une fente annulaire définie entre une surface latérale extérieure du cylindre de guidage (110), qui s'étend au moins partiellement à l'intérieur du boîtier (140), et une surface interne du boîtier (140), et dans laquelle ledit passage primaire (205) est réalisé en forme de trou de passage croisant radialement une paroi latérale du cylindre de guidage (110),
    la pompe à membrane volumétrique comprenant au moins un passage secondaire (210), destiné à placer la chambre intermédiaire (195) en communication avec le volume interne (145) du boîtier (140), lorsque le piston (115) est en position de point mort haut, ledit second passage (210) étant en forme de trou de passage, croisant la paroi latérale du cylindre de guidage (110) près de la membrane flexible (150).
  2. Pompe (100) selon la revendication 1, caractérisée en ce que ledit passage secondaire (210) est fourni dans le cylindre de guidage (110).
  3. Pompe (100) selon la revendication 1 ou 2, caractérisée en ce que le passage secondaire (210) dispose d'une section transversale traversante dont l'extension est inférieure à 0,2 mm2.
  4. Pompe (100) selon l'une quelconque des revendications précédentes, caractérisée en ce que le passage secondaire (210) est un trou de passage.
  5. Pompe (100) selon la revendication 4, caractérisée en ce que ledit trou de passage présente un diamètre inférieur à 0,5 mm.
  6. Pompe (100) selon l'une quelconque des revendications précédentes, caractérisée en ce qu'elle comprend une pluralité desdits passages secondaires (210).
  7. Pompe (100) selon la revendication 6, caractérisée en ce que lesdits passages secondaires (210) sont équidistants angulairement les uns des autres par rapport à un axe longitudinal (Y) du cylindre de guidage (110).
EP19161805.7A 2018-04-19 2019-03-11 Pompe volumétrique à membrane Active EP3557059B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102018000004722A IT201800004722A1 (it) 2018-04-19 2018-04-19 Pompa volumetrica a membrana

Publications (2)

Publication Number Publication Date
EP3557059A1 EP3557059A1 (fr) 2019-10-23
EP3557059B1 true EP3557059B1 (fr) 2020-11-11

Family

ID=62952257

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19161805.7A Active EP3557059B1 (fr) 2018-04-19 2019-03-11 Pompe volumétrique à membrane

Country Status (3)

Country Link
EP (1) EP3557059B1 (fr)
DK (1) DK3557059T3 (fr)
IT (1) IT201800004722A1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3075468A (en) * 1960-04-06 1963-01-29 Hills Mccanna Co Hydraulically actuated diaphragm pump
DE4141670C2 (de) * 1991-12-17 1994-09-29 Ott Kg Lewa Hydraulisch angetriebene Membranpumpe mit Membranhubbegrenzung
US6264436B1 (en) * 1999-05-11 2001-07-24 Milton Roy Company Multifunction valve
ES2630179T3 (es) * 2003-05-16 2017-08-18 Wanner Engineering, Inc. Bomba de diafragma
DK2921705T3 (en) * 2014-03-20 2019-01-07 Annovi Reverberi Spa Diaphragm plate group for diaphragm pumps

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP3557059A1 (fr) 2019-10-23
IT201800004722A1 (it) 2019-10-19
DK3557059T3 (da) 2021-02-15

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