EP3557059B1 - Pompe volumétrique à membrane - Google Patents

Pompe volumétrique à membrane Download PDF

Info

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

Links

Images

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

Definitions

  • the piston is connected to a drive kinematism, typically of the connecting rod-crank type, which allows it to slide between an upper dead centre position and a lower dead centre position.
  • the outer surface of the flexible membrane 150 i.e. the one facing the drive shaft 105, may be placed in contact with and fixed to the thrust surface (or top) of the piston 115, for example by means of a screw 185 and a fixing washer 190 placed in middle position both with respect to the flexible membrane 150 and with respect to the piston 115.
  • the sealing ring 200 when the piston 115 is in the lower dead centre position, the sealing ring 200 is positioned below or at least at the aforesaid primary passages 205, thus allowing the latter to create a direct communication between the intermediate chamber 195 and the internal volume 145 of the casing 140. In this manner, when the internal volume 145 of the casing 140 is filled with the lubricating oil, the latter may also penetrate and completely fill the intermediate chamber 195, thus creating a lubricating oil cushion which concurs to transmitting the thrust exerted by the piston 115 during the compression stroke, to the flexible membrane 150.
  • each secondary passage 210 it is preferable for the passing through cross-section of each secondary passage 210 to have an extension which is less than 0.2 mm 2 , and more preferably less than 0.05 mm 2 .

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
EP3096013B1 (fr) * 2003-05-16 2019-09-04 Wanner Engineering, Inc. Pompe a diaphragme
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
DK3557059T3 (da) 2021-02-15
EP3557059A1 (fr) 2019-10-23
IT201800004722A1 (it) 2019-10-19

Similar Documents

Publication Publication Date Title
EP2860396B1 (fr) Pompe
EP2684386B1 (fr) Orifice de sortie de tête de pompe
EP0985825B1 (fr) Pompe à piston pour lubrifiants
EP3557059B1 (fr) Pompe volumétrique à membrane
US7661935B2 (en) High pressure pump
US4149831A (en) Double-acting differential piston supply pump
CN110345371A (zh) 自润滑泵的喉部密封件
US8226383B2 (en) Downhole pump
US1432041A (en) Pump
EP2058517B1 (fr) Pompe
CN206092576U (zh) 一种双作用伸缩油缸
EP3578811B1 (fr) Pompe à piston volumétrique
US9341173B2 (en) Lance pump with a ram
IT202100006824A1 (it) Pompa volumetrica a pistoni ad alta pressione
US2446748A (en) etter
US3199457A (en) Reciprocating pump
RU171538U1 (ru) Скважинная насосная установка
GB1567100A (en) Flow control assembly for multi-piston pumps
RU2636356C1 (ru) Устройство для ввода жидких реагентов в трубопровод
RU2578777C1 (ru) Плунжерный насос высокого давления
US3298317A (en) High pressure variable volume pump
SU603767A1 (ru) Насос
RU2042049C1 (ru) Насос с кулачковым приводом
US20150300334A1 (en) Rotary drive linear rod displacement pump
CH365283A (de) Kolbenpumpe für variable Fördermenge

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): 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

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20200416

RBV Designated contracting states (corrected)

Designated state(s): 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

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

RIC1 Information provided on ipc code assigned before grant

Ipc: F04B 53/06 20060101ALI20200527BHEP

Ipc: F04B 43/06 20060101ALI20200527BHEP

Ipc: F04B 43/02 20060101AFI20200527BHEP

INTG Intention to grant announced

Effective date: 20200615

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): 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

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1333726

Country of ref document: AT

Kind code of ref document: T

Effective date: 20201115

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602019001238

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

Effective date: 20210210

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20201111

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1333726

Country of ref document: AT

Kind code of ref document: T

Effective date: 20201111

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210211

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210212

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201111

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210311

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201111

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201111

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201111

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210311

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201111

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210211

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201111

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201111

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201111

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201111

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201111

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201111

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201111

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201111

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602019001238

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20210812

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201111

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201111

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201111

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201111

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20210331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201111

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210311

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210311

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210311

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210331

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220331

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220331

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230513

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201111

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20190311

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201111

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240327

Year of fee payment: 6

Ref country code: GB

Payment date: 20240327

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20240129

Year of fee payment: 6

Ref country code: FR

Payment date: 20240325

Year of fee payment: 6

Ref country code: DK

Payment date: 20240325

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201111