WO2006133590A1 - Compensated gear pump with modular components - Google Patents

Compensated gear pump with modular components Download PDF

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Publication number
WO2006133590A1
WO2006133590A1 PCT/CH2006/000320 CH2006000320W WO2006133590A1 WO 2006133590 A1 WO2006133590 A1 WO 2006133590A1 CH 2006000320 W CH2006000320 W CH 2006000320W WO 2006133590 A1 WO2006133590 A1 WO 2006133590A1
Authority
WO
WIPO (PCT)
Prior art keywords
pump
module
gear
gear pump
motor
Prior art date
Application number
PCT/CH2006/000320
Other languages
French (fr)
Inventor
Bruno Gourdin
Original Assignee
Gotec Sa
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 Gotec Sa filed Critical Gotec Sa
Publication of WO2006133590A1 publication Critical patent/WO2006133590A1/en

Links

Classifications

    • 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
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • 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
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/18—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber
    • F04C14/185—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by varying the useful pumping length of the cooperating members in the axial direction
    • 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
    • F04C2230/00—Manufacture
    • F04C2230/60—Assembly methods
    • 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
    • F04C2240/00—Components
    • F04C2240/70—Use of multiplicity of similar components; Modular construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2251/00—Material properties
    • F05C2251/04—Thermal properties
    • F05C2251/042—Expansivity

Definitions

  • the present invention relates to a compensated gear pump with modular elements, and more particularly to a gear pump comprising modules which are assembled together and having compensating elements between the modules and the various elements constituting the modules.
  • the pumps can be used for various applications, for example in the food industry, chemical industry, heating systems. Depending on the form of use, they can be used both for pumping ice slurry and heating fluid, that is to say that the differences in temperature can be very important depending on the forms of use which implies large differences in dilation.
  • a disadvantage of the known forms of execution is also that they are also limited to a particular use from the point of view of capacity.
  • the objects of the present invention therefore are to overcome the disadvantages of the known embodiments.
  • the modular element compensated gear pump consists of three modules assembled together.
  • a pump module that includes one or more gears and the input and output conduits, a motor module that drives the pump, and a coupling module that is disposed between the pump module and the motor module.
  • the three modules have flexible joints that compensate for differences in axial and radial expansion.
  • a very important advantage is that the modules are interchangeable, that is to say that it is possible to adapt one of the modules according to the type of use without changing the other two. It is therefore no longer necessary to provide a pump for each type of use, only the change of one or the other of the modules being necessary.
  • the flexibility of use is: therefore very great according to necessity. Production can also be streamlined, reducing production costs and achieving significant business benefits.
  • flanges absorb the friction between the various moving elements which allows to significantly reduce the wear of the elements and which makes the use of the pump the rate of lubrication of the liquid, or other, pumped.
  • Figure 1 is an overall view in side section of the compensated gear pump with modular elements.
  • Fig. 2 is a plan view of a pump gear.
  • Figure 3 is a plan view of a compensation flange.
  • the modular element compensated gear pump comprises a pump module 1 which consists of an upper element and a lower element 2 which are connected together, of a module coupling 3 and a motor module 17.
  • the pump module has an outlet opening 4 which is connected to an outlet duct 5 and an inlet opening 6 which is connected to an inlet duct 7.
  • a gear consisting of - ⁇ -
  • a radial compensation ring 15 is mounted in the pump module.
  • An upper radial compensation flange 9 is mounted on the gear and a lower compensation flange 16 is mounted under the gear.
  • a positioning pin ⁇ is mounted in the pump module to position the two upper 1 and lower 2 elements as well as the radial compensation ring 15.
  • Flexible joints for example the flexible seal 10, are mounted between the various elements so as to compensating for differences in expansion and also in order to avoid excessive friction between the moving elements, particularly when starting the pump.
  • a height spacer 18 is mounted in the pump module. The size of this spacer can be varied to allow the variation of the displacement of the pump.
  • the coupling module 3 comprises a dynamic sealing element 12 and a motor coupling element 13.
  • Figure 2 shows a gear comprising a pinion 11 and a ring 14 whose axes of rotation are offset.
  • FIG. 3 shows a plan view of the upper axial compensation flange 9 or of the lower compensation flange 16.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)

Abstract

The invention concerns a compensated gear pump with modular components comprising three mutually assembled modules, a pump module (1) including a gear (11), a motor module (17) actuating the pump and a coupling module (3) arranged between the pump module and the motor module. The different modules comprise axial and radial expansion joints.

Description

POMPE A ENGRENAGE COMPENSEE A ELEMENTS MODULAIRESCOMPENSATED GEAR PUMP WITH MODULAR ELEMENTS
La présente invention se rapporte à une pompe à engrenage compensée à éléments modulaires, et plus particulièrement à une pompe à engrenage comportant des modules qui sont assemblés entre eux et comportant des éléments de compensation entre les modules et les différents éléments constituant les modules.The present invention relates to a compensated gear pump with modular elements, and more particularly to a gear pump comprising modules which are assembled together and having compensating elements between the modules and the various elements constituting the modules.
Les pompes peuvent être utilisées pour diverses applications, par exemple dans l'industrie alimentaire, 1' industrie chimique, les chauffages . Selon les formes d'utilisation, elles peuvent être utilisées aussi bien pour pomper du coulis de glace que du liquide de chauffage, c'est-à-dire que les différences de températures peuvent être très importante selon les formes d'utilisation ce qui implique de grosses différences de dilatation.The pumps can be used for various applications, for example in the food industry, chemical industry, heating systems. Depending on the form of use, they can be used both for pumping ice slurry and heating fluid, that is to say that the differences in temperature can be very important depending on the forms of use which implies large differences in dilation.
Des différences importantes d'utilisation sont aussi dues à la nature du liquide, semi-liquide ou gaz pompés, et selon qu' ils sont lubrifiants ou non lubrifiants .Significant differences in use are also due to the nature of the liquid, semi-liquid or gas pumped, and whether they are lubricating or non-lubricating.
Les formes d' exécutions connues présentent de nombreux inconvénients .The known forms of execution have many disadvantages.
Un inconvénient essentiel est que les formes d' exécutions connues ne sont pas modulables et sont destinées à une utilisation particulière et limitée, que ce soit en fonction de la température ou de la nature du liquide, .semi-liquide ou gaz pompés, ce qui implique qu'une pompe différente doit être conçue et utilisée pour chaque forme d'utilisation particulière. Ce manque de flexibilité _ o _An essential disadvantage is that the known embodiments are not adjustable and are intended for a particular and limited use, whether as a function of the temperature or the nature of the liquid, semi-liquid or gas pumped, which implies that a different pump must be designed and used for each particular form of use. This lack of flexibility _ o _
d'utilisation implique des coûts de production importants dus à la multiplicité des pompes différentes à produire, ce qui peut poser des problèmes de prix de vente élevés qui peuvent limiter la commercialisation.use involves significant production costs due to the multiplicity of different pumps to produce, which can cause problems of high selling prices that can limit marketing.
Ξn plus du manque de flexibilité d'utilisation, les formes d' exécutions connues ont une durée de vie limitée .In addition to the lack of flexibility of use, the known forms of execution have a limited life.
Un inconvénient des formes d'exécutions connues est également constitué par le fait qu'elles sont aussi limitées à une utilisation particulière au point de vue capacité.A disadvantage of the known forms of execution is also that they are also limited to a particular use from the point of view of capacity.
Les buts de la présente invention consistent donc à remédier aux inconvénients des formes d' exécutions connues .The objects of the present invention therefore are to overcome the disadvantages of the known embodiments.
Les buts sont atteints selon les principes de 1' invention définis par la revendication 1.The objects are achieved according to the principles of the invention defined by claim 1.
La pompe à engrenage compensée à éléments modulaires est constituée par trois modules assemblés entre eux. Un module pompe qui comporte un ou des engrenages et les conduits d' entrée et de sortie, un module moteur qui actionne la pompe et un module d' accouplement qui est disposé entre le module pompe et le module moteur. Les trois modules comportent des joints souples qui permettent de compenser les différences de dilatation axiale et radiale.The modular element compensated gear pump consists of three modules assembled together. A pump module that includes one or more gears and the input and output conduits, a motor module that drives the pump, and a coupling module that is disposed between the pump module and the motor module. The three modules have flexible joints that compensate for differences in axial and radial expansion.
Les avantages sont nombreux.The benefits are many.
Un avantage très important est que les modules sont interchangeables, c'es-à-dire qu'il est possible d'adapter un des modules selon le type d'utilisation sans changer les deux autres . Il n' est donc plus nécessaire de prévoir une pompe pour chaque type d'utilisation, seul le changement de l'un ou l'autre des modules étant nécessaire. La flexib±l±té d'utilisation est: donc -très grande selon la nécessité. La production peut également être rationalisée ce qui permet de réduire les coûts de production et d' obtenir des avantages commerciaux importants .A very important advantage is that the modules are interchangeable, that is to say that it is possible to adapt one of the modules according to the type of use without changing the other two. It is therefore no longer necessary to provide a pump for each type of use, only the change of one or the other of the modules being necessary. The flexibility of use is: therefore very great according to necessity. Production can also be streamlined, reducing production costs and achieving significant business benefits.
Un autre avantage important et que les différents modules entre eux et individuellement comportent des joints souples qui permettent de compenser les différences de dilatation d'une manière radiale et axiale ce qui permet d'utiliser la même pompe à basse ou à haute température.Another important advantage and that the different modules between them and individually comprise flexible joints that compensate for differences in expansion in a radial and axial way which allows to use the same pump at low or high temperature.
De plus des flasques absorbent les frottements entre les différents éléments en mouvement ce qui permet de réduire considérablement l'usure des éléments et ce qui rend indépendante l'utilisation de la pompe du taux de lubrification du liquide, ou autres, pompés.In addition flanges absorb the friction between the various moving elements which allows to significantly reduce the wear of the elements and which makes the use of the pump the rate of lubrication of the liquid, or other, pumped.
Les dessins annexés illustrent schématiquement et à titre d'exemple les principes de l'invention.The accompanying drawings illustrate schematically and by way of example the principles of the invention.
La figure 1 est une vu d'ensemble en coupe de côté de la pompe à engrenage compensée à éléments modulaires.Figure 1 is an overall view in side section of the compensated gear pump with modular elements.
La figure 2 est une vue en plan d'un engrenage de pompe.Fig. 2 is a plan view of a pump gear.
La figure 3 est une vue en plan d'un flasque de compensation.Figure 3 is a plan view of a compensation flange.
En référence tout d'abord à la figure 1, la pompe à engrenage compensée à éléments modulaires comporte un module pompe 1 qui est constitué d'un élément supérieur et d'un élément inférieur 2 qui sont assemblés entre eux, d'un module d' accouplement 3 et d'un module moteur 17. Le module pompe comporte une ouverture de sortie 4 qui est reliée à un conduit de sortie 5 et une ouverture d'entrée 6 qui est reliée à un conduit d'entrée 7. Un engrenage, constitué par — Λ—Referring firstly to FIG. 1, the modular element compensated gear pump comprises a pump module 1 which consists of an upper element and a lower element 2 which are connected together, of a module coupling 3 and a motor module 17. The pump module has an outlet opening 4 which is connected to an outlet duct 5 and an inlet opening 6 which is connected to an inlet duct 7. A gear, consisting of - Λ-
tin pignon 11 et une couronne 14, est: monté dans le module pompe. Une bague de compensation radiale 15 est montée dans le module pompe. Un flasque de compensation radial supérieur 9 est monté sur l' engrenage et un flasque de compensation inférieur 16 est monté sous l'engrenage. Une goupille de positionnement δ est montée dans le module pompe pour positionner les deux éléments supérieur 1 et inférieur 2 ainsi que la bague de compensation radiale 15. Des joints souples , par exemple le joint souple 10 , sont montés entre les différents éléments de manière à compenser des différence de dilatation et aussi de manière à éviter un frottement trop important entre les éléments en mouvement, particulièrement à la mise en route de la pompe.pinion 11 and a ring 14 is mounted in the pump module. A radial compensation ring 15 is mounted in the pump module. An upper radial compensation flange 9 is mounted on the gear and a lower compensation flange 16 is mounted under the gear. A positioning pin δ is mounted in the pump module to position the two upper 1 and lower 2 elements as well as the radial compensation ring 15. Flexible joints, for example the flexible seal 10, are mounted between the various elements so as to compensating for differences in expansion and also in order to avoid excessive friction between the moving elements, particularly when starting the pump.
Une entretoise de hauteur 18 est montée dans le module pompe. La dimension de cette entretoise peut être variée pour permettre la variation de la cylindrée de la pompe.A height spacer 18 is mounted in the pump module. The size of this spacer can be varied to allow the variation of the displacement of the pump.
Le module d' accouplement 3 comporte un élément d' étanchéité dynamique 12 et un élément d' accouplement moteur 13.The coupling module 3 comprises a dynamic sealing element 12 and a motor coupling element 13.
La figure 2 montre un engrenage comportant un pignon 11 et une couronne 14 dont les axes de rotation sont décalés .Figure 2 shows a gear comprising a pinion 11 and a ring 14 whose axes of rotation are offset.
La figure 3 montre une vue en plan du flasque de compensation axial supérieur 9 ou du flasque de compensation inférieur 16. FIG. 3 shows a plan view of the upper axial compensation flange 9 or of the lower compensation flange 16.

Claims

REVENDICATIONS
1. Pompe à engrenage compensée à éléments modulaires, caractérisée par le fait qu'elle comporte trois modules assemblés entre eux, un module pompe (1) gui comporte un engrenage (11) et les conduits d'entrée et de sortie, un module moteur (17) qui actionne la pompe et un module d'accouplement (3) qui est disposé entre le module pompe et le module moteur, et par le fait que chaque module comporte des joints élastiques permettant de compenser les différences de dilatation axiale et radiale.1. Gear pump compensated modular elements, characterized in that it comprises three modules assembled together, a pump module (1) which comprises a gear (11) and the inlet and outlet ducts, a motor module (17) which actuates the pump and a coupling module (3) which is arranged between the pump module and the motor module, and in that each module comprises elastic joints to compensate for the differences in axial and radial expansion.
2. Pompe à engrenage selon la revendication 1 , caractérisée par le fait qu' elle comporte une bague de compensation (15) qui est montée dans le pompe.2. Gear pump according to claim 1, characterized in that it comprises a compensation ring (15) which is mounted in the pump.
3. Pompe à engrenage selon la revendication 1 , caractérisée par le fait qu' elle comporte un flasque de compensation axial supérieur (9) montée sur l'engrenage et un flasque de compensation inférieure (16) qui est monté sous l'engrenageGear pump according to Claim 1, characterized in that it comprises an upper axial compensation flange (9) mounted on the gear and a lower compensation flange (16) which is mounted under the gearing.
4- Pompe à engrenage selon la revendication 1, caractériséβ par le fait qu'elle comporte une entretoise de hauteur (18) qui montée dans le module pompe, la différence de hauteur permettant de modifier la cylindrée de la pompe.4- Gear pump according to claim 1, characterized in that it comprises a height spacer (18) mounted in the pump module, the difference in height to change the displacement of the pump.
5. Pompe à engrenage selon la revendication 1 , caractérisée par le fait que le module d' accouplement comporte un élément d' étanchéité dynamique (12) et un élément d'accouplement moteur (13). Gear pump according to Claim 1, characterized in that the coupling module comprises a dynamic sealing element (12) and a motor coupling element (13).
PCT/CH2006/000320 2005-06-17 2006-06-14 Compensated gear pump with modular components WO2006133590A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1032/05 2005-06-17
CH10322005 2005-06-17

Publications (1)

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WO2006133590A1 true WO2006133590A1 (en) 2006-12-21

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009010844A1 (en) * 2007-07-13 2009-01-22 Vanna Zaccarelli Machine for fluid pumping

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3687578A (en) * 1970-09-04 1972-08-29 Trw Inc Hydraulic pump motor
DE2934002A1 (en) * 1979-08-22 1981-03-26 Roland 8510 Fürth Geier Gear pump with eccentric gear ring - has separate enclosing insert located in two-part housing and contg. shaft bearings and ports
US6074189A (en) * 1996-12-12 2000-06-13 Eckerle; Otto Filling member-less internal-gear machine
DE10244556A1 (en) * 2002-06-13 2003-12-24 Continental Teves Ag & Co Ohg Motor-pump unit, especially for slip-controlled brake systems
DE29624460U1 (en) * 1996-04-06 2003-12-24 Bosch Rexroth Ag Inner toothed wheel machine (Pump or engine) - comprises of housing with outer toothed pinion which has comb-end inner toothed hollow wheel between which there are passages on ring gear

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3687578A (en) * 1970-09-04 1972-08-29 Trw Inc Hydraulic pump motor
DE2934002A1 (en) * 1979-08-22 1981-03-26 Roland 8510 Fürth Geier Gear pump with eccentric gear ring - has separate enclosing insert located in two-part housing and contg. shaft bearings and ports
DE29624460U1 (en) * 1996-04-06 2003-12-24 Bosch Rexroth Ag Inner toothed wheel machine (Pump or engine) - comprises of housing with outer toothed pinion which has comb-end inner toothed hollow wheel between which there are passages on ring gear
US6074189A (en) * 1996-12-12 2000-06-13 Eckerle; Otto Filling member-less internal-gear machine
DE10244556A1 (en) * 2002-06-13 2003-12-24 Continental Teves Ag & Co Ohg Motor-pump unit, especially for slip-controlled brake systems

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009010844A1 (en) * 2007-07-13 2009-01-22 Vanna Zaccarelli Machine for fluid pumping

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