EP0343773B1 - Flüssigkeitspumpe und Ventilvorrichtung - Google Patents

Flüssigkeitspumpe und Ventilvorrichtung Download PDF

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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
English (en)
French (fr)
Other versions
EP0343773A1 (de
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/de
Priority to EP90201568A priority patent/EP0393800B1/de
Publication of EP0343773A1 publication Critical patent/EP0343773A1/de
Application granted granted Critical
Publication of EP0343773B1 publication Critical patent/EP0343773B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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. Fluidpumpe mit:
    einem Kolben (3);
    einem Zylinder (21), in dem sich der Kolben hin- und herbewegt;
    eine Ventilkammer (1) mit einem Einlaß (6) und einem Auslaß (7), die jeweils mit einem Ventil (80 oder 81) versehen sind;
    ein abteilendes Druckbetätigungselement (23 oder 26), das zwischen dem Zylinder und der Ventilkammer in einer Druckerzeugerkammer (5a) vorgesehen ist, wobei das Element infolge der Hin- und Herbewegung des Kolbens betätigt wird, um Fluid in die Ventilkammer zu saugen und Fluid aus der Ventilkammer zu pumpen; und
    ein Siebelement (19 oder 27 oder 29), das zwischen dem Druckbetätigungselement und der Ventilkammer vorgesehen ist, so daß in dem Fluid nur Partikel, die eine vorbestimmte Größe nicht überschreiten, das Siebelement passieren können, dadurch gekennzeichnet, daß zumindest das Ventil des Einlasses der Ventilkammer aufweist:
    (a) ein Sitzelement (84), in dessen einer Stirnfläche eine Vielzahl von Ventilsitzen (83) gebildet sind, von denen jeder eine konkave Form hat, die einem Kugelflächenausschnitt entspricht;
    (b) eine Vielzahl von Fluiddurchlässen (88) in dem Sitzelement, wobei für jeden der Ventilsitze eine entsprechende Vielzahl solcher Fluiddurchlässe in dem Sitzelement vorhanden und mit dem Ventilsitz verbunden sind;
    (c) eine Vielzahl von Ventilteilen (85), von denen sich jedes in einem entsprechenden Ventilsitz befindet und eine Kugeloberfläche aufweist, die der Fläche des Ventilsitzes entspricht; und
    (d) ein Ventilgehäuse (87), das mit einem elastischen Teil (86) versehen ist, das die Ventilstücke elastisch auf die Oberfläche der entsprechenden Ventilsitze drückt.
  2. Fluidpumpe nach Anspruch 1, dadurch gekennzeichnet, daß die Druckerzeugerkammer (5a) auf der Zylinderseite (A) des Druckbetätigungselements (23) ein Betriebsmedium (25) enthält, das die Bewegung des Kolbens (3) überträgt.
  3. Fluidpumpe nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß das Druckbetätigungselement (23 oder 26) eine elastische Membrane ist.
  4. Fluidpumpe nach Anspruch 1, dadurch gekennzeichnet, daß das Druckbetätigungselement (26) eine elastische Membrane ist, die direkt durch den Kolben (3) betätigt wird.
  5. Fluidpumpe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Druckerzeugerkammer (5a) auf der Ventilkammerseite (B) des Druckbetätigungselementes (23) mit einer Flüssigkeit (28) gefüllt ist, die eine von dem Fluid (14) in der Ventilkammer (1) unterschiedliche Wichte aufweist, und ein Durchlaß (17), der die Druckerzeugerkammer und die Ventilkammer verbindet, an einer Stelle vorgesehen ist, an der die Höhe relativ zu der Druckerzeugerkammer und der Ventilkammer so ist, daß die Flüssigkeit infolge des Wichteunterschiedes zwischen der Flüssigkeit und dem Fluid nicht in die Ventilkammer fließt.
  6. Fluidpumpe nach Anspruch 5, dadurch gekennzeichnet, daß eine Vorkammer (30) zur Aufnahme der Flüssigkeit (28) vorgesehen ist und die Flüssigkeit in der Vorkammer mit der Flüssigkeit in dem Durchlaß (17) in Verbindung steht.
  7. Fluidpumpe nach Anspruch 5 oder 6, daurch gekennzeichnet, daß eine Trenneinrichtung (32) zwischen der Flüssigkeit (28) und dem Fluid (14) vorgesehen ist, die sich Niveauveränderungen anpaßt.
  8. Fluidpumpe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Siebelement (19 oder 27 oder 29) einstückig mit einem Teil (5) ausgebildet ist, das mit der Druckerzeugerkammer (5a) versehen ist.
EP89302606A 1988-03-23 1989-03-16 Flüssigkeitspumpe und Ventilvorrichtung Expired - Lifetime EP0343773B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP90201581A EP0390298B1 (de) 1988-03-23 1989-03-16 Fluidpumpanordnung
EP90201568A EP0393800B1 (de) 1988-03-23 1989-03-16 Ventilanordnung

Applications Claiming Priority (6)

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

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP90201581.7 Division-Into 1990-06-18
EP90201568.4 Division-Into 1990-06-18

Publications (2)

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

Family

ID=27299893

Family Applications (3)

Application Number Title Priority Date Filing Date
EP90201581A Expired - Lifetime EP0390298B1 (de) 1988-03-23 1989-03-16 Fluidpumpanordnung
EP89302606A Expired - Lifetime EP0343773B1 (de) 1988-03-23 1989-03-16 Flüssigkeitspumpe und Ventilvorrichtung
EP90201568A Expired - Lifetime EP0393800B1 (de) 1988-03-23 1989-03-16 Ventilanordnung

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP90201581A Expired - Lifetime EP0390298B1 (de) 1988-03-23 1989-03-16 Fluidpumpanordnung

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP90201568A Expired - Lifetime EP0393800B1 (de) 1988-03-23 1989-03-16 Ventilanordnung

Country Status (5)

Country Link
EP (3) EP0390298B1 (de)
KR (1) KR0181711B1 (de)
AU (1) AU626838B2 (de)
CA (1) CA1338102C (de)
DE (3) DE68920306T2 (de)

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
KR100579201B1 (ko) * 1997-10-02 2006-05-11 소니 가부시끼 가이샤 기록재생장치 및 기록재생방법
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
CN105934618B (zh) 2013-11-26 2018-09-21 S.P.M.流量控制股份有限公司 用在压裂泵中的阀座
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
FR959521A (de) * 1950-03-31
BE520270A (de) *
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 (de) * 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
DE3760884D1 (en) * 1986-02-20 1989-11-30 Saint Gobain Vitrage Pumping of high viscosity materials
JPH0198773A (ja) * 1987-09-22 1989-04-17 Yoshinobu Koiwa バルブ装置

Also Published As

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

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