EP1260712A2 - Pompe à piston - Google Patents

Pompe à piston Download PDF

Info

Publication number
EP1260712A2
EP1260712A2 EP02004477A EP02004477A EP1260712A2 EP 1260712 A2 EP1260712 A2 EP 1260712A2 EP 02004477 A EP02004477 A EP 02004477A EP 02004477 A EP02004477 A EP 02004477A EP 1260712 A2 EP1260712 A2 EP 1260712A2
Authority
EP
European Patent Office
Prior art keywords
plunger
pump
housing
pump according
sealing means
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.)
Granted
Application number
EP02004477A
Other languages
German (de)
English (en)
Other versions
EP1260712B1 (fr
EP1260712A3 (fr
Inventor
Stephan Dr. Notzon
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.)
Paul Hammelmann Maschinenfabrik GmbH
Hammelmann Maschinenfabrik GmbH
Original Assignee
Paul Hammelmann Maschinenfabrik GmbH
Hammelmann Maschinenfabrik GmbH
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 Paul Hammelmann Maschinenfabrik GmbH, Hammelmann Maschinenfabrik GmbH filed Critical Paul Hammelmann Maschinenfabrik GmbH
Publication of EP1260712A2 publication Critical patent/EP1260712A2/fr
Publication of EP1260712A3 publication Critical patent/EP1260712A3/fr
Application granted granted Critical
Publication of EP1260712B1 publication Critical patent/EP1260712B1/fr
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
    • F04B53/14—Pistons, piston-rods or piston-rod connections
    • F04B53/143—Sealing provided on the piston

Definitions

  • the present invention relates to a pump, in particular a plunger pump, with a crank mechanism, which is arranged in a housing and in a receptacle guided plunger drives oscillating, and a fixed to the housing Pump head for directing the pressurized fluid, the Housing surrounds the crank mechanism and the plunger.
  • plunger pumps that are used particularly in high pressure water technology because they are compact and reliable at pressures between 100 and 3000 bar can be used. These plunger pumps have compared to others Pump types, such as rotating positive displacement pumps have the advantage of a good one energetic efficiency and are able to handle even difficult fluid conditions, such as high temperature, low and high viscosity media as well as solids To promote liquids.
  • the plunger pumps are relatively quiet and low-vibration running and are easy to maintain.
  • a disadvantage of these vertical arranged plunger pumps is that in the lower housing part with the Crank drive oil is present, making this housing area opposite the upper one Housing area by appropriate wipers or a complex to install Suction chamber seal must be installed. For this, the surface of the Piston rod are processed to accommodate a corresponding sealing ring.
  • the pressure-tight seal to a lower housing space containing the crank mechanism needs the plunger or a vertical sealing and guide element attached to the plunger no longer guided in a recording with particularly high precision to be a seal to the upper housing part.
  • the elastic sealants serve, among other things, as splash protection an entry of oil from the area of the crank mechanism into the upper housing part to avoid.
  • Such a hermetic seal of the lower housing part offers This is particularly advantageous for chemical pumps, as it is resistant to media and water jets Sealing was previously only possible with diaphragm pumps.
  • a is in the housing Clearance above the lower housing area and below the pump head educated. This space can be filled with air. So that exists a clear separation between a fluid space in the pump head, the gap, which is filled with air and the space of the crank mechanism in which oil is contained is.
  • the sealant is preferably on one side on the plunger and on the opposite Side fixed to the housing. Assembly is made easier if inner webs are formed on the housing which surround the plunger in a ring shape, so that the sealant is only clamped onto this housing section become.
  • the sealant can be designed as an annular or conical bellows his. A conical configuration of the bellows has the advantage that it will snap out is prevented.
  • the shafts provided on the bellows should be in one such a number should be provided that there is no flutter even at high stroke frequencies occurs. With a gastight design of the sealant, the pump can be in one extreme environment.
  • the plunger can be constructed in several parts to hold the sealant on a lower one To be able to clamp the plunger element.
  • the plunger is piston-shaped in the upper area in a socket or receptacle for the plunger seal.
  • the pump has several adjacent plungers, with each plunger sealant to a lower one Housing space are provided.
  • the multiple plungers can then become one Pump unit can be combined to provide a large delivery volume.
  • the pump is therefore preferably designed as a high-pressure plunger pump.
  • a plunger pump 1 shown in FIGS. 1 and 2 comprises a single or multi-part housing 2 in which a lower crank mechanism 3 is provided.
  • the crank gear 3 is used to drive a plunger 5, which is formed in several parts and comprises a lower plunger section 4.
  • the plunger 5 is made of highly wear-resistant Material such as ceramic or hard metal is manufactured and glides without pressure in a barrel sleeve or receptacle 51, not shown, for sealing of the annular gap formed around the plunger 5.
  • This receptacle 51 forms a High pressure sealing and can be used as a labyrinth, packing or hydrodynamic sealing be trained.
  • Below the receptacle 51 is a low pressure seal 52 is provided, which is designed as a packing or elastomer sealing ring. Due to the vertical structure, the plunger pump 1 can work weight-neutral.
  • a pump head 6 is provided on the housing 2 in the upper region, in which Channels for guiding a fluid are formed.
  • the pump head 6 is over bolts 11 attached to the housing 2.
  • a suction chamber 9 turns downward of the plunger 5 fluid is sucked into the space 8.
  • the plunger 5 moves up and closes a valve gives access to the suction chamber 9.
  • a valve 50 is actuated that opens access to a pressure chamber 10. By moving the plunger 5 from a certain pressure, the fluid is thus upwards into the Pump chamber 10 pumped and distributed over corresponding lines.
  • an annular and conical bellows 7 For sealing between a lower housing space 19 in which the crank mechanism 3 is arranged, and an air-filled space 12 is an annular and conical bellows 7 is provided. Due to the conical and wavy Forming the bellows 7 is a buckling in the movement of the Plungers 5 prevented.
  • the bellows 7 is fixed on one side to the plunger 5, a flange 43 being provided on the lower plunger section 4 an annular section 14 tightly clamped by a clamping element 15 is. On the opposite side, the bellows 7 is on an annular Recording 17 sealed via additional clamping elements.
  • the recording 17 is integrally connected to the housing 2 via inner webs.
  • the bellows 7 is made of a media-resistant and water-jet resistant material formed so that the pump 1 can also be used under extreme conditions can.
  • the wall thickness of the flexible material of the bellows 7 is approximately 1 to 2 mm.
  • a plurality of plungers 5 are arranged next to one another.
  • the crank mechanism 3 is driven via a pinion shaft 30, the Comb the pinion with one or more gears 29.
  • the gears 29 are with connected to a crankshaft, with the eccentric attachment of the connecting rod pins an oscillating movement of the plunger 5 is generated.
  • the guide element 21 is guided in a receptacle 20, between the guide element 21 and the receptacle 20 no expensive sealants need to be provided since the bellows 7 provides a hermetic seal and forms a splash guard. This The type of elastic sealing by the bellows 7 also prevents wear of sealants such as sliding guides etc.
  • 3 are plungers in the exemplary embodiment shown mounted in the housing 2. It is also possible to have fewer or more plungers 5 in summarize a pump unit.
  • the lower plunger section 4 comprises a flange 43 for fixing the bellows 7. There is a stop within the flange 43 44 provided for connection to the upper part of the plunger 5. On the opposite On the side, a pin 41 is formed which fits into the guide element 21 intervenes. The pin 41 has a reduced diameter, so that compressive forces can be removed from the guide element 21 via a shoulder 42.
EP02004477A 2001-05-25 2002-02-27 Pompe à piston Expired - Lifetime EP1260712B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10125669 2001-05-25
DE10125669A DE10125669B4 (de) 2001-05-25 2001-05-25 Pumpe, insbesondere Plungerpumpe

Publications (3)

Publication Number Publication Date
EP1260712A2 true EP1260712A2 (fr) 2002-11-27
EP1260712A3 EP1260712A3 (fr) 2004-07-21
EP1260712B1 EP1260712B1 (fr) 2009-04-01

Family

ID=7686218

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02004477A Expired - Lifetime EP1260712B1 (fr) 2001-05-25 2002-02-27 Pompe à piston

Country Status (7)

Country Link
US (1) US6622612B2 (fr)
EP (1) EP1260712B1 (fr)
JP (1) JP2003028062A (fr)
AT (1) ATE427425T1 (fr)
AU (1) AU779301B2 (fr)
DE (2) DE10125669B4 (fr)
ES (1) ES2325148T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3409943A1 (fr) * 2017-06-01 2018-12-05 Hammelmann GmbH Pompe à piston et utilisation d'une pompe à piston

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BRPI0416598A (pt) * 2003-11-14 2007-01-30 Approtec Usa bomba de irrigação de poços profundos
DE102004045817A1 (de) * 2004-09-22 2006-03-23 Robert Bosch Gmbh Kolbenpumpe zur Förderung von Fluiden
US20070009367A1 (en) * 2005-04-21 2007-01-11 Kmt Waterjet Systems, Inc. Close fit cylinder and plunger
DE102006039782B4 (de) * 2006-08-24 2009-04-09 Continental Automotive Gmbh Fluidpumpe, umfassend einen Kurbeltrieb mit ungeteilten Pleueln
AT504225B1 (de) * 2006-09-22 2008-10-15 Siemens Vai Metals Tech Gmbh Verfahren zur herstellung eines stahlbandes
DE102006060659B3 (de) * 2006-12-21 2008-07-03 Neander Motors Ag Kolbenarbeitsmaschine
EA013698B1 (ru) * 2007-09-18 2010-06-30 Общество с ограниченной ответственностью Научно-исследовательский центр экологических ресурсов "ГОРО" Насос высокого давления
US8770954B2 (en) 2010-02-10 2014-07-08 KickSmart International, Inc. Human-powered irrigation pump
US9003955B1 (en) 2014-01-24 2015-04-14 Omax Corporation Pump systems and associated methods for use with waterjet systems and other high pressure fluid systems
DE102014106520A1 (de) 2014-05-09 2015-11-12 Hammelmann Maschinenfabrik Gmbh Hochdruck-Plungerpumpe
DE102017202521B4 (de) 2017-02-16 2022-02-24 Stasskol Gmbh Kompressor mit Bewegungskompensationseinrichtung
US10808688B1 (en) 2017-07-03 2020-10-20 Omax Corporation High pressure pumps having a check valve keeper and associated systems and methods
EP4127479A1 (fr) 2020-03-30 2023-02-08 Hypertherm, Inc. Cylindre pour pompe à jet de liquide à extrémités longitudinales d'interface multifonctionnelles
DE102021102709A1 (de) 2021-02-05 2022-08-11 Joachim Risse Hochdruckpumpe

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1414675A (en) * 1972-07-18 1975-11-19 Ito K Reciprocating pump
FR2273961A1 (fr) * 1974-06-06 1976-01-02 Venditti Bernard Dispositif d'etancheite pour pompes alternatives ou analogues
US4087213A (en) * 1976-07-21 1978-05-02 Atsugi Motor Parts, Co., Ltd. Self-aligning reciprocating plunger pump
US4824342A (en) * 1988-02-16 1989-04-25 Hypro Corp. Chemical injector system for piston pumps
EP0317716A2 (fr) * 1987-11-23 1989-05-31 SOILMEC S.p.A. Pompe à piston d'aspiration et de refoulement

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE794380A (fr) * 1972-01-29 1973-05-16 Pumpenfabrik Urach Garniture d'etancheite pour pistons, tiges de piston ou analogues, comportant une douille d'etancheite servant a rendre etanche la fente axiale
DE8611322U1 (de) * 1986-04-24 1986-07-17 GHEbavaria Maschinen GmbH, 8701 Eibelstadt Kolben-Antriebseinheit einer Brikettierpresse

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1414675A (en) * 1972-07-18 1975-11-19 Ito K Reciprocating pump
FR2273961A1 (fr) * 1974-06-06 1976-01-02 Venditti Bernard Dispositif d'etancheite pour pompes alternatives ou analogues
US4087213A (en) * 1976-07-21 1978-05-02 Atsugi Motor Parts, Co., Ltd. Self-aligning reciprocating plunger pump
EP0317716A2 (fr) * 1987-11-23 1989-05-31 SOILMEC S.p.A. Pompe à piston d'aspiration et de refoulement
US4824342A (en) * 1988-02-16 1989-04-25 Hypro Corp. Chemical injector system for piston pumps

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3409943A1 (fr) * 2017-06-01 2018-12-05 Hammelmann GmbH Pompe à piston et utilisation d'une pompe à piston

Also Published As

Publication number Publication date
DE50213406D1 (de) 2009-05-14
US6622612B2 (en) 2003-09-23
EP1260712B1 (fr) 2009-04-01
AU3815902A (en) 2002-11-28
JP2003028062A (ja) 2003-01-29
DE10125669B4 (de) 2006-04-27
DE10125669A1 (de) 2002-11-28
ATE427425T1 (de) 2009-04-15
ES2325148T3 (es) 2009-08-27
US20020174767A1 (en) 2002-11-28
EP1260712A3 (fr) 2004-07-21
AU779301B2 (en) 2005-01-13

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