EP1260712A2 - Pumpe, insbesondere Plungerpumpe - Google Patents
Pumpe, insbesondere Plungerpumpe Download PDFInfo
- 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
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
- 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.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Reciprocating Pumps (AREA)
- Reciprocating Pumps (AREA)
- Compressor (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
Description
- Figur 1
- eine geschnittene Seitenansicht durch ein Ausführungsbeispiel einer erfindungsgemäßen Pumpe;
- Figur 2
- eine geschnittene Draufsicht auf die wesentlichen Teile der Pumpe der Figur 1;
- Figur 3
- eine Detailansicht des unteren Plungerabschnittes.
Claims (10)
- Pumpe (1), insbesondere Plungerpumpe, mit einem Kurbeltrieb (3), der einen in einem Gehäuse angeordneten und in einer Aufnahme (51) geführten Plunger (5) oszillierend antreibt, und einem an dem Gehäuse (2) festgelegten Pumpenkopf (6) zur Leitung des von einem Saugraum (9) abgezogenen mit Druck beaufschlagten Fluids, wobei das Gehäuse (2) den Kurbeltrieb (3) und den Plunger (5) umgibt, dadurch gekennzeichnet, dass am Plunger (5) elastische Dichtmittel (7) festgelegt sind, die eine druckdichte Abdichtung zu einem unteren den Kurbeltrieb (3) enthaltenden Gehäuseraum (19) bereitstellen.
- Pumpe nach Anspruch 1, dadurch gekennzeichnet, dass in dem Gehäuse (2) ein Zwischenraum (12) oberhalb des unteren Gehäuseraumes (19) und unterhalb des Pumpenkopfes (6) ausgebildet ist.
- Pumpe nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Dichtmittel (7) auf der einen Seite am Plunger (5) und auf der gegenüberliegenden Seite am Gehäuse (2) festgelegt ist.
- Pumpe nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das Dichtmittel (7) als ringförmiger und/oder konischer Faltenbalg ausgebildet ist.
- Pumpe nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Dichtmittel (7) eine gasdichte Abdichtung zwischen dem Gehäuseraum (19) und dem Zwischenraum (12) bereitstellen.
- Pumpe nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass um den Plunger (5) eine Hochdruckabdichtung (51) und eine an den Zwischenraum (12) angrenzende Niederdruckabdichtung (52) vorgesehen ist.
- Pumpe nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Dichtmittel (7) einen Spritzschutz gegen Öl aus dem unteren Gehäuseraum (19) bilden und der Zwischenraum (12) mit Luft gefüllt ist.
- Pumpe nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass der Plunger (5) mehrteilig ausgebildet ist.
- Pumpe nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die Pumpe (1) mehrere benachbarte Plunger (5) aufweist und um jeden Plunger (5) Dichtmittel (7) zu einem unteren Gehäuseraum (19) vorgesehen sind.
- Pumpe nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass die Pumpe (1) als Hochdruckplungerpumpe ausgebildet ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10125669A DE10125669B4 (de) | 2001-05-25 | 2001-05-25 | Pumpe, insbesondere Plungerpumpe |
DE10125669 | 2001-05-25 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1260712A2 true EP1260712A2 (de) | 2002-11-27 |
EP1260712A3 EP1260712A3 (de) | 2004-07-21 |
EP1260712B1 EP1260712B1 (de) | 2009-04-01 |
Family
ID=7686218
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02004477A Expired - Lifetime EP1260712B1 (de) | 2001-05-25 | 2002-02-27 | Pumpe, insbesondere Plungerpumpe |
Country Status (7)
Country | Link |
---|---|
US (1) | US6622612B2 (de) |
EP (1) | EP1260712B1 (de) |
JP (1) | JP2003028062A (de) |
AT (1) | ATE427425T1 (de) |
AU (1) | AU779301B2 (de) |
DE (2) | DE10125669B4 (de) |
ES (1) | ES2325148T3 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3409943A1 (de) * | 2017-06-01 | 2018-12-05 | Hammelmann GmbH | Plungerpumpe sowie verwendung einer plungerpumpe |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AP2095A (en) * | 2003-11-14 | 2010-01-29 | Kickstart International Inc | Deep well irrigation pump |
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 |
AP3556A (en) | 2010-02-10 | 2016-01-18 | Kickstart 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 |
EP4127527A1 (de) | 2020-03-24 | 2023-02-08 | Hypertherm, Inc. | Hochdruckdichtung für ein flüssigkeitsstrahlschneidsystem |
US11904494B2 (en) | 2020-03-30 | 2024-02-20 | Hypertherm, Inc. | Cylinder for a liquid jet pump with multi-functional interfacing longitudinal ends |
DE102021102709A1 (de) | 2021-02-05 | 2022-08-11 | Joachim Risse | Hochdruckpumpe |
Citations (5)
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 (de) * | 1987-11-23 | 1989-05-31 | SOILMEC S.p.A. | Pumpe mit Ansaug- und Verdrängerkolben |
Family Cites Families (2)
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 |
-
2001
- 2001-05-25 DE DE10125669A patent/DE10125669B4/de not_active Expired - Fee Related
-
2002
- 2002-02-27 EP EP02004477A patent/EP1260712B1/de not_active Expired - Lifetime
- 2002-02-27 AT AT02004477T patent/ATE427425T1/de not_active IP Right Cessation
- 2002-02-27 DE DE50213406T patent/DE50213406D1/de not_active Expired - Lifetime
- 2002-02-27 ES ES02004477T patent/ES2325148T3/es not_active Expired - Lifetime
- 2002-05-02 AU AU38159/02A patent/AU779301B2/en not_active Expired
- 2002-05-14 US US10/143,887 patent/US6622612B2/en not_active Expired - Lifetime
- 2002-05-23 JP JP2002149620A patent/JP2003028062A/ja active Pending
Patent Citations (5)
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 (de) * | 1987-11-23 | 1989-05-31 | SOILMEC S.p.A. | Pumpe mit Ansaug- und Verdrängerkolben |
US4824342A (en) * | 1988-02-16 | 1989-04-25 | Hypro Corp. | Chemical injector system for piston pumps |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3409943A1 (de) * | 2017-06-01 | 2018-12-05 | Hammelmann GmbH | Plungerpumpe sowie verwendung einer plungerpumpe |
Also Published As
Publication number | Publication date |
---|---|
US6622612B2 (en) | 2003-09-23 |
EP1260712B1 (de) | 2009-04-01 |
ES2325148T3 (es) | 2009-08-27 |
EP1260712A3 (de) | 2004-07-21 |
JP2003028062A (ja) | 2003-01-29 |
DE50213406D1 (de) | 2009-05-14 |
DE10125669B4 (de) | 2006-04-27 |
AU3815902A (en) | 2002-11-28 |
DE10125669A1 (de) | 2002-11-28 |
US20020174767A1 (en) | 2002-11-28 |
ATE427425T1 (de) | 2009-04-15 |
AU779301B2 (en) | 2005-01-13 |
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