EP1299643B1 - Pompe volumetrique - Google Patents

Pompe volumetrique Download PDF

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Publication number
EP1299643B1
EP1299643B1 EP01971753A EP01971753A EP1299643B1 EP 1299643 B1 EP1299643 B1 EP 1299643B1 EP 01971753 A EP01971753 A EP 01971753A EP 01971753 A EP01971753 A EP 01971753A EP 1299643 B1 EP1299643 B1 EP 1299643B1
Authority
EP
European Patent Office
Prior art keywords
positive displacement
displacement pump
pump according
piston
longitudinal
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
EP01971753A
Other languages
German (de)
English (en)
Other versions
EP1299643A1 (fr
Inventor
Manfred Roth
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.)
Tankol GmbH
Original Assignee
Tankol 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 Tankol GmbH filed Critical Tankol GmbH
Publication of EP1299643A1 publication Critical patent/EP1299643A1/fr
Application granted granted Critical
Publication of EP1299643B1 publication Critical patent/EP1299643B1/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
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/047—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement with actuating or actuated elements at the outer ends of the cylinders
    • 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
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/0404—Details or component parts
    • F04B1/0426—Arrangements for pressing the pistons against the actuated cam; Arrangements for connecting the pistons to the actuated cam
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
    • F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F04C2/348—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the vanes positively engaging, with circumferential play, an outer rotatable member

Definitions

  • the invention relates to a positive displacement pump according to the preamble of the independent claim.
  • Piston engines offer a periodically gestartver Slichen Working space, which filled with a fluid medium is; its pressure changes during compression rising, falling during an expansion.
  • the essential geometric size is the stroke volume as that of the displacer effected change of the working space during a stroke.
  • Pump and motor are on one Base plate or a lantern in alignment both Shaft axes through a coupling, the necessary drive power connected transmitting element.
  • An exception forms the direct clutch of the engine;
  • the pump shaft on the drive side designed as a hollow shaft such that the motor shaft is inserted and then a torque can transfer.
  • hermetically sealed pump superstructures This must be because of toxic, aggressive or flammable liquids to any kind of leakage the shaft seal of the exiting pump shaft avoided become. This is done either by Eiseneinbau known Magnetic couplings between pump shaft and aggregate coupling, or by the tight connection of the motor housing with the pump housing by means of a hermetic seal between stator and rotor of the motor in so-called “canned engine” design.
  • Such hermetically sealed pumps are extremely expensive. With the magnetic coupling Add to that any slip between outside and outside Inner rotor due to large safety surcharges in the design must be avoided, since no restart after one short-term slip between the two rotors is possible.
  • the generic GB 255 873 A offers a vane pump at which the space between adjacent pistons is used as a pumping room. The latter is through the room formed between successive wings.
  • DE 1 107 084 B is a radial piston pump with a -with connected to the pump shaft - bell-shaped pump rotor to be taken, the one receiving the piston - on fixed - comprising pump body; the pump rotor is configured to an inwardly directed cam track, in the radial direction one of the piston number corresponding number of round corners containing the lift curves for simultaneous and same-minded operation of all pistons.
  • the pump body is - in particular oscillating - positive displacement pump with the in it with Provided energy storage associated flat piston Longitudinal grooves in a rotatable about the pump body Rotor bushing stored as well as each flat piston at its for Rotor sleeve pointing head surface a bolt or needle-like body associated, on the outer surface of the Inner surface of the rotor sleeve rests; those flat-bottomed pistons determined together with the surrounding longitudinal groove the Conveying or working space.
  • the pump body extends in the rotor bush cross-sectionally eccentric; in a particularly favorable embodiment, the inner bore the rotor bushing arranged eccentrically in this. In any case, there is one between these two parts Annular gap before tapering in the circumferential direction Gap width.
  • the rotor bush with eccentrically arranged inner bore instead of the rotor shaft of the classic drive the rotor bush with eccentrically arranged inner bore used. Inside this eccentric inner bore is the pump body with two or more - radially and circumferentially arranged evenly distributed - centric longitudinal grooves arranged to the fulcrum of the drive motor so that the in the longitudinal grooves inserted piston by the circumferential eccentric bore of the rotor sleeve to a lifting movement are forced.
  • the longitudinal grooves in the pump body mounted cross-sectionally inclined to the diameter straight line; limited the cross-sectional longitudinal axis of the longitudinal groove with one of the diameter lines of the pump body a Angle of about 20 ° to 40 °, in particular of about 25 °.
  • a preferred positive displacement pump is characterized by two Pairs of longitudinal grooves whose mouths to each other at the Circumferential surface of the pump body offset by 90 ° are; because in each case two such longitudinal grooves are on one Diameter line with each other at about the opposite side Associated with estuaries, according to the invention their Muzzle centers on different sides of the assigned Straight diameters lie at a distance to this, that is are offsets.
  • the invention to the described embodiment with two pairs of Longitudinal grooves not limited; it can also be a larger number be provided for such pairings.
  • the underside of the flat piston determine and the bottom of the groove is the height of either side of Grooved walls limited conveyor or work space. This should be replaced by at least one between the bottom of the Flat piston and its longitudinal recess provided hole be connected to the needle roller bearing.
  • Pump caps according to the invention have corresponding Valves, to prevent the lifting movement of each flat-bottomed piston a conveying process of the pumped medium from the suction to To produce pressure side of the pump according to the invention.
  • the individual production rooms or subsidy chambers - equal to each one Selected number of flat pistons - are in the Pump covers summarized and form over the engine cover the connections for the suction and pressure line.
  • a particular advantage over conventional positive displacement pumps is an improved security against "seizure" the conveying elements, as in the lubrication gap between the pump body and flat piston always the delivery pressure on both sides degrades, the pressure component from the delivery chamber not in the direction of the sliding bearing surfaces acts, as for example in a screw pump is the case.
  • the subject of the present invention increases with increasing tangential force on the flat pistons the increase in the transmitted torque of the rotor bushing - at increasing discharge pressure to the same extent also the hydrostatic Pressure in the lubrication gap.
  • the drive takes place by means of a on that outer rotor engaging toothed or V-belt.
  • This is the result Possible use as flanged auxiliary unit at Power machines of all kinds allows. If you replace the Magnets having outer rotor together with the tooth or V-belt elements e.g. through a DC or commutatorless three-phase stator, is the application of to recognize above generally described pump; because of the sizing is especially the application given this pump in mobile use.
  • a tangential piston pump 10 is in one - at both ends from mounting strips 12 having housing covers 14th closed - tubular housing 16 in the range of Ball bearings 18 a rotor bushing 20 of the inner diameter d mounted, which has a pump body 22 of circular cross-section surrounds the diameter e.
  • the longitudinal axis of the pump body 22 is designated A, and in it are four longitudinal grooves 24 with cross-section part-circularly rounded groove base 26 arranged such that in the example shown their cross-sectional longitudinal axes Q with the - a diameter straight determining - cross-sectional central axis M or the perpendicular to this Transverse axis B of the pump body 22 an angle w of about Limit 25 °.
  • the center of the mouth 25 of the longitudinal grooves 24th on the body circumference is shown in FIG. 5 by a measure i to the corresponding cross-sectional central axis M and the transverse axis B offsets, and the cross-sectional longitudinal axes Q of the two longitudinal grooves 24 on the cross-sectional central axis M. run as parallel to each other as the Cross-sectional longitudinal axes Q of the two of the transverse axis B assigned Longitudinal grooves 24.
  • Each longitudinal groove 24 of the cross-sectional width a takes a Flat piston 30, in the outwardly directed head surface 32 in a running in the longitudinal direction indentation 34 - the width b of its part-circular cross-section - A bearing needle 36 rests; on one side of the cross-section in a measure z - as the distance between the cross-sectional longitudinal axis Q of the longitudinal groove 24 and the parallel cross-sectional axis F of this longitudinal indentation 34 eccentric in the flat piston 30 extending longitudinal indentation 34 is the wider strip of the top surface 32 too a panel surface 33 of width f bevelled.
  • a flat piston 30 By the choice of a flat piston 30 is for the representation the delivery volume - with appropriate choice of the number of pistons - a minimum stroke is sufficient. For a series in a conveying range of for example 40 to 1400 1 / min and a speed of 2950 min ⁇ -1 moves the maximum stroke in the range of 2 to 6.5 mm. That has to Result that the known disadvantages of oscillating positive displacement pumps in terms of the pulsating flow a minimum can be reduced. With more than one Flat piston 30 is thus also the forming pressure pulsation at the discharge nozzle of the pump 10 is far reduced.
  • the piston movement during the suction stroke i. the wake of the Flat piston 30 in the range of diameter enlargement or the positive eccentricity of the inner diameter d of the rotor bush 20 takes place by the biasing force of in the Recesses 38 of the flat piston 30 inserted springs as energy storage 40, the lubrication of the needle bearing on Piston head 32 of the flat piston 30 through the fluid by means of arrangement of holes 46 or the like.
  • the stator receives as in the known "canned motor” a thin-walled tube from the classic materials of this application.
  • the stator receives as in the known "canned motor” a thin-walled tube from the classic materials of this application.
  • stator housing to be provided with appropriate surface cooling.
  • the stator housing will be a certain amount of magnetic Waste heat once through the circulation of the leakage currents, which flow through the bearings on the stator to the suction side, and on the other by the heat conduction squirrel cage / rotor bushing added.
  • the rotor sleeve 20 can also be driven by a magnetic coupling.
  • the rotor bushing 20 of the tangential piston pump 10 a according to Fig. 7, 8 at its axially parallel outer contour at least a sleeve-like magnetic element 50.
  • a magnetic counter-element 51 of an outer rotor 54 extends in a direction parallel to the longitudinal axis
  • the latter is associated with a support ring 62 endwise.
  • the outer rotor 54 at the of the magnetic elements 50, 51 Magnetic coupling 52 is formed by a dental or V-belt 64 driven.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Electrically Driven Valve-Operating Means (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Claims (20)

  1. Pompe volumétrique (10, 10a) comportant un corps de pompe (22) disposé dans un carter de pompe (16) pour des pistons (30) montés dans des rainures longitudinales (24) partant de la surface circonférentielle (23) du corps de pompe (22), mobiles dans ce dernier en fonction de la modification de la configuration d'un espace de travail (28), caractérisé en ce que le corps de pompe (22) de la pompe volumétrique (10, 10a), en particulier oscillante, comportant à l'intérieur des rainures longitudinales (24) munies de pistons plats (30) associés à des accumulateurs d'énergie (40) est monté dans un boítier de rotor (20) rotatif autour du corps de pompe (22), et en ce qu'à chaque piston plat (30) est associé sur sa surface d'extrémité supérieure (32) tournée vers le boítier de rotor (20) un corps de type goujon ou aiguille (36) sur la surface extérieure duquel repose la surface intérieure (21) du boítier de rotor (20), le piston plat (30) et la rainure longitudinale (24) déterminant l'espace de travail.
  2. Pompe volumétrique selon la revendication 1, caractérisée en ce que la face inférieure (31) du piston plat (30) et le fond (26) de la rainure déterminent la hauteur de l'espace de travail (28) délimité de chaque côté par les parois (27) de la rainure.
  3. Pompe volumétrique selon la revendication 1 ou 2, caractérisée en ce que le piston plat (30) est maintenu à une distance modifiable du fond de la rainure par le(s) ressort(s) sous forme d'accumulateurs d'énergie (40) reposant sur le fond (26) de rainure de la rainure longitudinale (24).
  4. Pompe volumétrique selon l'une des revendications 1 à 3, caractérisée en ce que le corps de pompe (22) est placé de manière excentrée transversalement dans le boítier de rotor (20), et en ce qu'entre ces deux pièces est présent un interstice annulaire (19) de largeur d'interstice (t) s'amincissant dans le sens de la circonférence.
  5. Pompe volumétrique selon la revendication 4, caractérisée en ce que l'alésage intérieur du boítier de rotor (20) est disposé de manière excentrée à l'intérieur de ce dernier.
  6. Pompe volumétrique selon l'une des revendications 1 à 5, caractérisée en ce que, dans la surface d'extrémité supérieure (32) du piston de section plane (30), est prévue une moulure longitudinale en forme de goulotte (34) comme support pour le corps de type goujon ou aiguille constitué par une aiguille de palier (36).
  7. Pompe volumétrique selon la revendication 6, caractérisée en ce que des évidements (38) pour le logement d'un accumulateur d'énergie (40) sont placés à peu près à angle droit par rapport à la moulure longitudinale (34) ou à la surface d'extrémité supérieure (32) du piston plat (30) dans ce dernier, l'évidement (38) étant placé de préférence près de l'axe longitudinal (Q) de la section de la rainure longitudinale (24).
  8. Pompe volumétrique selon l'une des revendications 1 à 7, caractérisée en ce qu'entre la face inférieure (31) du piston plat (30) et sa moulure longitudinale (34) est prévu au moins un alésage (46) reliant ces parties.
  9. Pompe volumétrique selon l'une des revendications 1 à 8, caractérisée en ce que l'axe longitudinal (Q) de la section de la rainure longitudinale (24) définit, avec une droite diamétrale (B, M) du corps de pompe (22), un angle (w).
  10. Pompe volumétrique selon la revendication 9, caractérisé par un angle (w) d'environ 20° à 40°, de préférence d'environ 25° entre l'axe longitudinal (Q) de la section de la rainure longitudinale (24) et les droites diamétrales (B, M) du corps de pompe (22).
  11. Pompe volumétrique selon l'une des revendications 1 à 10, caractérisée par deux embouchures (25) des rainures longitudinales (24) se trouvant à peu près adjacentes l'une à l'autre de part et d'autre d'une droite diamétrale (B ou M), les centres des embouchures se trouvant au niveau des différents côtés des droites diamétrales concernées à une distance (i) de ces dernières.
  12. Pompe volumétrique selon la revendication 11 caractérisée en ce que sont prévues deux paires de rainures longitudinales (24) dont les embouchures (25) sont chacune décalées l'une par rapport à l'autre de 90° sur la surface circonférentielle (23) du corps de pompe (22).
  13. Pompe volumétrique selon l'une des revendications 1 à 12, caractérisée en ce que le boítier de rotor (20) est de part et d'autre monté sur un roulement à billes, et fermé des deux côtés par un couvercle de pompe (44, 44a).
  14. Pompe volumétrique selon la revendication 13, caractérisée en ce que dans le couvercle de pompe (44, 44a) est prévu au moins un clapet (42) associé à la rainure longitudinale (24).
  15. Pompe volumétrique selon l'une des revendications 4 à 14, caractérisée en ce que les espaces de travail (28) sont réunis dans les couvercles de pompe (44, 44a) par des raccords pour les conduites d'aspiration et de pression.
  16. Pompe volumétrique selon l'une des revendications 1 à 15, caractérisée en ce que le boítier de rotor (20) est raccordé à un élément magnétique (50), et en ce que cette pièce fait partie d'un accouplement magnétique (50).
  17. Pompe volumétrique selon la revendication 16, caractérisé par un élément (51) faisant pendant à l'élément magnétique (50), disposé sur un rotor extérieur (54).
  18. Pompe volumétrique selon la revendication 16 ou 17, caractérisée en ce que la paroi de cuirasse (58) d'une cuirasse (60) est disposée dans un interstice (56) entre les deux éléments magnétiques (50, 51).
  19. Pompe volumétrique selon une des revendications 16 à 18, caractérisée en ce que le rotor extérieur (54) est relié à une courroie dentée ou trapézoïdale (64) comme organe de commande.
  20. Pompe volumétrique selon la revendication 19, caractérisée en ce que le rotor extérieur (54) ainsi que la courroie dentée ou trapézoïdale sont remplacés par un stator à courant continu sans commutateur ou par un stator à courant alternatif à vitesse de rotation régulée.
EP01971753A 2000-07-08 2001-07-06 Pompe volumetrique Expired - Lifetime EP1299643B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10033404 2000-07-08
DE10033404 2000-07-08
PCT/EP2001/007776 WO2002004812A1 (fr) 2000-07-08 2001-07-06 Pompe volumetrique

Publications (2)

Publication Number Publication Date
EP1299643A1 EP1299643A1 (fr) 2003-04-09
EP1299643B1 true EP1299643B1 (fr) 2005-10-05

Family

ID=7648363

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01971753A Expired - Lifetime EP1299643B1 (fr) 2000-07-08 2001-07-06 Pompe volumetrique

Country Status (5)

Country Link
EP (1) EP1299643B1 (fr)
AT (1) ATE306019T1 (fr)
AU (1) AU2001291662A1 (fr)
DE (2) DE50107621D1 (fr)
WO (1) WO2002004812A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20091513A1 (it) * 2009-08-31 2011-03-01 Enea Mattei Spa Ing Compressore/espansore a palette con testa ad elementi rotanti
EP2501950B1 (fr) * 2009-11-20 2020-05-20 Norm Mathers Convertisseur de couple hydrostatique et amplificateur de couple
DE102010041546A1 (de) * 2010-09-28 2012-03-29 Mahle International Gmbh Pendelschieberzellenpumpe
DE102014017242B4 (de) 2014-02-20 2019-01-03 Tankol Gmbh Verdrängerpumpe für hohe Drücke bei nicht schmierenden Medien
DE102014005143A1 (de) * 2014-04-07 2015-10-08 Tankol Gmbh Gesellschaft Für Fluidtechnik Verdrängerpumpe mit mindestens zwei unterschiedlichen Förderleistungen bei Antriebsdrehzahl
EA039170B1 (ru) 2015-12-21 2021-12-14 МЭТЕРС ГИДРАУЛИКС ТЕКНОЛОДЖИС ПиТиУай ЭлТэДэ Гидравлическая машина, характеризующаяся наличием кольца со скошенной кромкой
EP3957821B1 (fr) 2017-03-06 2023-09-13 Mathers Hydraulics Technologies Pty Ltd Machine hydraulique à aube à rouleaux étagée et système d'alimentation en fluide comprenant une machine hydraulique avec capacité de moteur de démarrage
CN109944796A (zh) * 2019-04-25 2019-06-28 杭州三花研究院有限公司 油泵
CN110535278B (zh) * 2019-09-20 2020-07-10 山东众泰防爆电机股份有限公司 电机端盖及其电机
CN111049305B (zh) * 2019-11-12 2021-04-20 超音速智能科技(浙江)有限公司 电机

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE421374C (de) * 1923-01-09 1925-11-11 Erwin Sturm Kolbenabdichtung fuer Pumpen oder Kraftmaschinen mit umlaufenden, zwanglaeufig gefuehrten und waehrend ihrer Radialbewegung entlasteten Kolben
US1526343A (en) * 1924-02-25 1925-02-17 Jouanneaux Pierre Rotary pump
GB255873A (en) * 1925-07-22 1927-04-14 Erwin Sturm Improvements in rotary piston machines
US2250947A (en) * 1938-06-17 1941-07-29 Jr Albert Guy Carpenter Pump
GB724540A (en) * 1952-07-26 1955-02-23 Theisen Alois Improvements in or relating to rotary engines or pumps
DE1107084B (de) * 1957-11-29 1961-05-18 Kugelfischer G Schaefer & Co Radial-Kolbenpumpe
FR1526128A (fr) * 1967-04-06 1968-05-24 Comp Generale Electricite Générateur de surpression et de dépression
US5769611A (en) * 1996-09-06 1998-06-23 Stanadyne Automotive Corp. Hydraulic pressure supply pump with multiple sequential plungers

Also Published As

Publication number Publication date
ATE306019T1 (de) 2005-10-15
AU2001291662A1 (en) 2002-01-21
DE50107621D1 (de) 2006-02-16
EP1299643A1 (fr) 2003-04-09
DE10132298A1 (de) 2002-04-25
WO2002004812A1 (fr) 2002-01-17

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