EP0343773B1 - Pompe pour fluide et dispositif de clapet - Google Patents

Pompe pour fluide et dispositif de clapet Download PDF

Info

Publication number
EP0343773B1
EP0343773B1 EP89302606A EP89302606A EP0343773B1 EP 0343773 B1 EP0343773 B1 EP 0343773B1 EP 89302606 A EP89302606 A EP 89302606A EP 89302606 A EP89302606 A EP 89302606A EP 0343773 B1 EP0343773 B1 EP 0343773B1
Authority
EP
European Patent Office
Prior art keywords
valve
chamber
fluid
pressure
action
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.)
Expired - Lifetime
Application number
EP89302606A
Other languages
German (de)
English (en)
Other versions
EP0343773A1 (fr
Inventor
Yoshinobu Koiwa
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.)
Little Rock KK
Kelbin Co Ltd
Original Assignee
Little Rock KK
Kelbin Co Ltd
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
Priority claimed from JP63068882A external-priority patent/JP2557250B2/ja
Priority claimed from JP63077076A external-priority patent/JP2632540B2/ja
Priority claimed from JP63103232A external-priority patent/JPH07113426B2/ja
Application filed by Little Rock KK, Kelbin Co Ltd filed Critical Little Rock KK
Priority to EP90201581A priority Critical patent/EP0390298B1/fr
Priority to EP90201568A priority patent/EP0393800B1/fr
Publication of EP0343773A1 publication Critical patent/EP0343773A1/fr
Application granted granted Critical
Publication of EP0343773B1 publication Critical patent/EP0343773B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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
    • 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
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/1002—Ball valves
    • F04B53/1015—Combinations of ball valves working in parallel
    • 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
    • F04B43/067—Pumps having fluid drive the fluid being actuated directly by a piston
    • 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
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/1002—Ball valves
    • 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
    • F04B53/14—Pistons, piston-rods or piston-rod connections
    • F04B53/141—Intermediate liquid piston between the driving piston and the pumped liquid

Definitions

  • This invention relates to fluid pump apparatus.
  • Said pressure action member may be a resilient membrane.
  • Said pressure-action chamber may be filled on the valve chamber side of the pressure action member with a liquid that has a different specific gravity from that of fluid in the valve chamber, a passage that connects the pressure-action chamber and the valve chamber being provided at a position at which the height relative to the pressure-action chamber and the valve chamber is such that the liquid does not flow into the valve chamber owing to the difference in specific gravity between the liquid and the fluid.
  • a pre-chamber may be provided to contain said liquid, the liquid in said pre-chamber communicating with the liquid in said passage.
  • valve-piece 12 of the inlet valve 8 can open in the direction of the valve chamber 1 and is therefore urged toward its seat 11 by its valve spring 13 via a valve retainer 15, one end of the valve spring 13 being engaged with the inner wall of the valve chamber 1.
  • the valve-piece 12 of the outlet valve 9 opens away from the valve chamber 1 and is therefore urged against its seat 11 by its valve spring 13 being provided between the valve box 2 and a valve cover 16.
  • a screening member 29 that uses a mesh screen, for example, to prevent particles that exceed a given size from entering the pressure-action chamber 5a.
  • the screening member 29 may be formed as an integral part of the valve box 5 which provides the pressure-action chamber 5a, and the passages 20 therein are set at a downward inclination toward the passage 17 side.
  • valve housing 87 and seat 84 are each provided with respective central bolt through-holes 91 and 92 whereby they are bolted together by a bolt 93 and a nut 94.
  • valve-pieces 85 and/or the seat 84 may be made of, or covered with, a hard resilient material such as synthetic resin, for example.
  • valves 80 and 81 takes the form of small amplitude movements of the numerous valve-pieces 85, vibration accompanying the opening and closing action of the valves can be prevented.
  • the use of a plurality of fluid passages in the seat member of at least the inlet valve of the valve chamber means that particles in the fluid that exceed a given size can be removed before reaching the valve chamber.

Landscapes

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

Claims (8)

  1. Appareil pour pompage de fluide comprenant :
    - un piston (3);
    - un cylindre (21) dans lequel le piston va et vient ;
    - une chambre (1) de clapet ayant une entrée (6) et une sortie (7), chacune munie d'un clapet (80 ou 81);
    - un élément (23 ou 26) de séparation des pressions, placé entre le cylindre et la chambre de clapet dans la chambre à action de pression (5a), l'élément agissant sous l'action du va-et-vient du piston qui provoque l'aspiration du fluide dans la chambre de clapet et le pompage du fluide depuis la chambre de clapet ; et
    - un crible (19, 27 ou 29) placé entre l'élément de séparation de la pression et la chambre de clapet de telle sorte que ne peuvent passer dans le fluide à travers le crible que les seules particules qui n'excèdent pas une taille prescrite, caractérisé en ce qu'au moins le clapet d'entrée de la chambre de clapet comprend :
    a) un élément de siège (84) sur la face duquel sont formés une pluralité de sièges de clapets (83), chacun des sièges ayant une forme concave qui correspond à une surface sphérique partielle ;
    b) une pluralité de passages pour fluide (88) dans l'élément de siège, chacun des sièges de clapets présentant respectivement une pluralité de ces passages pour fluide dans l'élément de siège et communiquant avec le siège de clapet ;
    c) une pluralité d'éléments de clapets (85), chacun des éléments de clapets étant respectif à chacun des sièges de clapets et présentant chacun une surface sphérique qui correspond à la surface du siège de clapet ; et
    d) un logement (87) de clapet muni de moyens élastiques (86) qui pressent de façon élastique les éléments de clapet sur la surface de chacun de leurs sièges de clapet respectifs.
  2. Appareil pour pompage de fluide selon la revendication 1, caractérisé en ce que la chambre à action de pression (5a) contient sur le côté (A) du cylindre de l'élément à action de pression (23) un milieu (25) de transmission du fonctionnement du piston (3).
  3. Appareil pour pompage de fluide selon la revendication 1 ou 2, caractérisé en ce que l'élément (23 ou 26) à action de pression est une membrane élastique.
  4. Appareil pour pompage de fluide selon la revendication 1, caractérisé en ce que l'élément (23) à action de pression est une membrane élastique qui est poussée directement par le piston (3).
  5. Appareil pour pompage de fluide selon l'un des revendications précédentes, caractérisé en ce que la chambre à action de pression (5a) est remplie du côté (B) de la chambre de clapet de l'élément (23) à action de pression d'un liquide (28) qui a un poids spécifique différent de celui du fluide (14) dans la chambre de clapet (1), un passage (17) qui relie la chambre à action de pression et la chambre de clapet étant situé une position où la hauteur relative par rapport à la chambre à action de pression et à la chambre de clapet est telle que le fluide ne s'écoule pas dans la chambre de clapet, par suite de la différence de poids spécifique entre le liquide et le fluide.
  6. Appareil pour pompage de fluide selon la revendication 5, caractérisé, en ce qu'il est muni d'une chambre antérieure (30) destinée à contenir le liquide (28), le liquide dans la chambre antérieure communiquant avec le liquide dans le passage (17).
  7. Appareil pour pompage de fluide selon l'un des revendications 5 ou 6, caractérisé en ce qu'il est muni de moyens de séparation (32) entre le liquide (28) et le fluide (14) qui se conforment au changement de niveau.
  8. Appareil pour pompage de fluide selon l'un des revendications précédentes, caractérisé en ce que le crible (19 ou 27 ou 29) fait partie intégrante des moyens (5) fournissant la chambre à action de pression (5a).
EP89302606A 1988-03-23 1989-03-16 Pompe pour fluide et dispositif de clapet Expired - Lifetime EP0343773B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP90201581A EP0390298B1 (fr) 1988-03-23 1989-03-16 Dispositif de pompage de fluide
EP90201568A EP0393800B1 (fr) 1988-03-23 1989-03-16 Dispositif de clapet

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP68882/88 1988-03-23
JP63068882A JP2557250B2 (ja) 1988-03-23 1988-03-23 流体圧送装置
JP63077076A JP2632540B2 (ja) 1988-03-30 1988-03-30 流体圧送装置
JP77076/88 1988-03-30
JP63103232A JPH07113426B2 (ja) 1988-04-26 1988-04-26 バルブ装置
JP103232/88 1988-04-26

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP90201568.4 Division-Into 1989-03-16
EP90201581.7 Division-Into 1989-03-16

Publications (2)

Publication Number Publication Date
EP0343773A1 EP0343773A1 (fr) 1989-11-29
EP0343773B1 true EP0343773B1 (fr) 1993-11-18

Family

ID=27299893

Family Applications (3)

Application Number Title Priority Date Filing Date
EP90201568A Expired - Lifetime EP0393800B1 (fr) 1988-03-23 1989-03-16 Dispositif de clapet
EP90201581A Expired - Lifetime EP0390298B1 (fr) 1988-03-23 1989-03-16 Dispositif de pompage de fluide
EP89302606A Expired - Lifetime EP0343773B1 (fr) 1988-03-23 1989-03-16 Pompe pour fluide et dispositif de clapet

Family Applications Before (2)

Application Number Title Priority Date Filing Date
EP90201568A Expired - Lifetime EP0393800B1 (fr) 1988-03-23 1989-03-16 Dispositif de clapet
EP90201581A Expired - Lifetime EP0390298B1 (fr) 1988-03-23 1989-03-16 Dispositif de pompage de fluide

Country Status (5)

Country Link
EP (3) EP0393800B1 (fr)
KR (1) KR0181711B1 (fr)
AU (1) AU626838B2 (fr)
CA (1) CA1338102C (fr)
DE (3) DE68910726T2 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5368454A (en) * 1992-07-31 1994-11-29 Graco Inc. Quiet check valve
DE19604132C2 (de) * 1996-02-06 2000-04-13 Hammelmann Paul Maschf Hochdruckplungerpumpe, vorzugsweise für Arbeitsdrücke oberhalb 2.000 bar
EP0944080B1 (fr) * 1997-10-02 2004-05-06 Sony Corporation Dispositif et procede d'enregistrement/reproduction
SE518114C2 (sv) 1998-09-28 2002-08-27 Asept Int Ab Pumpanordning för att pumpa flytande livsmedel
US20110030213A1 (en) * 2009-08-07 2011-02-10 Weir Spm, Inc. Hydraulic installation tool for pump plunger
WO2015081243A1 (fr) 2013-11-26 2015-06-04 S.P.M. Flow Control, Inc. Siège de vanne à utiliser dans des pompes de fracturation
CN106050596B (zh) * 2016-06-07 2018-05-25 神华集团有限责任公司 柱塞计量泵

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE520270A (fr) *
FR959521A (fr) * 1950-03-31
GB272374A (en) * 1926-09-21 1927-06-16 Nouvelle Soc Des Ateliers Patt Improvements in mud pumps
DE805006C (de) * 1950-01-20 1951-05-04 Westfalia Dinnendahl Groeppel Membranpumpe
US3298320A (en) * 1965-05-17 1967-01-17 Little Inc A Atraumatic fluid pump
US3363580A (en) * 1966-01-19 1968-01-16 Denver Equip Co Multiple valve pump
US3520643A (en) * 1968-10-22 1970-07-14 Passavant Werke Sewage pump or the like
US3664770A (en) * 1970-02-18 1972-05-23 Golden Arrow Mfg Ltd Diaphragm pumps
JPS5018604B1 (fr) * 1971-06-24 1975-07-01
US3802807A (en) * 1972-06-02 1974-04-09 Precision Control Prod Corp Pump
US4378183A (en) * 1980-09-18 1983-03-29 The Pittsburgh & Midway Coal Mining Co. Apparatus and method for pumping hot, erosive slurry of coal solids in coal derived, water immiscible liquid
FR2512123A1 (fr) * 1981-08-27 1983-03-04 Scumra Pompe volumetrique a membrane pour suspensions de particules fragiles
EP0238380B1 (fr) * 1986-02-20 1989-10-25 Saint Gobain Vitrage International Pompage de matières à viscosité élevée
JPH0198773A (ja) * 1987-09-22 1989-04-17 Yoshinobu Koiwa バルブ装置

Also Published As

Publication number Publication date
DE68917587D1 (de) 1994-09-22
CA1338102C (fr) 1996-03-05
EP0393800A2 (fr) 1990-10-24
AU639071B2 (en) 1993-07-15
DE68910726D1 (de) 1993-12-23
DE68910726T2 (de) 1994-03-24
EP0393800A3 (en) 1990-11-07
AU7113391A (en) 1991-05-02
EP0390298A3 (en) 1990-10-31
KR890014899A (ko) 1989-10-25
AU3160689A (en) 1989-09-28
EP0393800B1 (fr) 1994-08-17
DE68920306T2 (de) 1995-05-18
EP0390298A2 (fr) 1990-10-03
EP0390298B1 (fr) 1994-12-28
DE68917587T2 (de) 1994-12-15
AU626838B2 (en) 1992-08-13
KR0181711B1 (ko) 1999-05-01
DE68920306D1 (de) 1995-02-09
EP0343773A1 (fr) 1989-11-29

Similar Documents

Publication Publication Date Title
US4948349A (en) Pump and valve apparatus
US4860995A (en) Valve element for use in pumps for handling fluids containing abrasive materials
US5839468A (en) Pump valve
EP0343773B1 (fr) Pompe pour fluide et dispositif de clapet
EP1144879A2 (fr) Palier de butee a renfoncements multiples
US2764097A (en) Pump
US4527957A (en) Piston pump
JPH01275974A (ja) バルブ装置
CA1338322C (fr) Dispositif pour le pompage d'un fluide vers et depuis une chambre a soupape
US5769614A (en) High pressure pump
WO2003038320A1 (fr) Procede et dispositif place au niveau d'un piston de pompe hydrodynamique
SE430528B (sv) Dubbelverkande differentialkolvpump
US4448212A (en) Check valve for use with high pressure pump
JP2632540B2 (ja) 流体圧送装置
CA1326433C (fr) Dispositif de soupape
US4906167A (en) Inherently flushing piston rod for a reciprocating pump
JP2654818B2 (ja) 流体圧送装置
JP2557250B2 (ja) 流体圧送装置
US6485272B2 (en) Fluid proportioner
JP2671055B2 (ja) 流体圧送装置
JPH0231082A (ja) 流体圧送装置における摺動体のシール構造
US4965042A (en) Inherently flushing piston rod for a reciprocating pump
JPS6019973A (ja) ダイアフラムポンプ
NL9101632A (nl) Afsluitklep met enkele plug voor maximale stroming.
EP0012584A1 (fr) Pompe à membrane pour pressions élevées

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

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): CH DE FR GB IT LI SE

17P Request for examination filed

Effective date: 19900522

17Q First examination report despatched

Effective date: 19910226

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE FR GB IT LI SE

REF Corresponds to:

Ref document number: 68910726

Country of ref document: DE

Date of ref document: 19931223

ET Fr: translation filed
ITF It: translation for a ep patent filed

Owner name: STUDIO TORTA SOCIETA' SEMPLICE

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
EAL Se: european patent in force in sweden

Ref document number: 89302606.2

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

Ref country code: SE

Payment date: 19960318

Year of fee payment: 8

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

Ref country code: SE

Effective date: 19970317

EUG Se: european patent has lapsed

Ref document number: 89302606.2

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

Ref country code: GB

Payment date: 19990317

Year of fee payment: 11

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

Ref country code: CH

Payment date: 19990331

Year of fee payment: 11

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

Ref country code: GB

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

Effective date: 20000316

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

Ref country code: FR

Payment date: 20000316

Year of fee payment: 12

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: 20000331

Ref country code: CH

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

Effective date: 20000331

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

Ref country code: DE

Payment date: 20000331

Year of fee payment: 12

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20000316

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: FR

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

Effective date: 20011130

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

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

Ref country code: DE

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

Effective date: 20020101

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

Ref country code: IT

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

Effective date: 20050316