FR2904380A1 - Pump e.g. spring barrel pump, has collector equipped with cup that communicates with conveyor duct, where collector is eccentric relative to axis of spring barrel, such that each of ducts empties into chamber during half-turn - Google Patents

Pump e.g. spring barrel pump, has collector equipped with cup that communicates with conveyor duct, where collector is eccentric relative to axis of spring barrel, such that each of ducts empties into chamber during half-turn Download PDF

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Publication number
FR2904380A1
FR2904380A1 FR0606863A FR0606863A FR2904380A1 FR 2904380 A1 FR2904380 A1 FR 2904380A1 FR 0606863 A FR0606863 A FR 0606863A FR 0606863 A FR0606863 A FR 0606863A FR 2904380 A1 FR2904380 A1 FR 2904380A1
Authority
FR
France
Prior art keywords
barrel
pump
collector
axis
bores
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.)
Withdrawn
Application number
FR0606863A
Other languages
French (fr)
Inventor
Louis Claude Porel
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.)
Hydro Leduc SAS
Original Assignee
Hydro Leduc SAS
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 Hydro Leduc SAS filed Critical Hydro Leduc SAS
Priority to FR0606863A priority Critical patent/FR2904380A1/en
Priority to DE602007002954T priority patent/DE602007002954D1/en
Priority to EP07290798A priority patent/EP1887222B1/en
Priority to US11/878,688 priority patent/US20080025850A1/en
Publication of FR2904380A1 publication Critical patent/FR2904380A1/en
Withdrawn legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/04Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/10Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement the cylinders being movable, e.g. rotary
    • F04B1/107Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement the cylinders being movable, e.g. rotary with actuating or actuated elements at the outer ends of the cylinders
    • F04B1/1071Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement the cylinders being movable, e.g. rotary with actuating or actuated elements at the outer ends of the cylinders with rotary cylinder blocks
    • F04B1/1072Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement the cylinders being movable, e.g. rotary with actuating or actuated elements at the outer ends of the cylinders with rotary cylinder blocks with cylinder blocks and actuating cams rotating together
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/04Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/047Multi-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
    • F04B1/0472Multi-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 with cam-actuated distribution members

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

The pump has bores (2a, 2b) communicate with a supply duct by ducts emptying into a chamber that is located behind a spring barrel (1). A conveyor collector (9) is equipped with a cup that communicates with a conveyor duct. The collector is eccentric relative to the axis of the spring barrel, such that each of the ducts empties into the chamber during a half-turn. The collector is balanced hydrostatically by pressure, and resting against the rear surface of the spring barrel.

Description

1 La présente invention a pour objet une pompe à barillet d'une conceptionThe present invention relates to a barrel pump of a design

particulière. Les pompes à barillet de type connu comportent un barillet, c'est-à-dire un corps cylindrique qui comporte une pluralité d'alésages, disposés autour de l'axe du cylindre, parallèlement à celui-ci, et dans lesquels se déplacent des pistons qui sont animés par tous moyens appropriés d'un mouvement alternatif de va et vient par lequel se fait l'action de pompage. Les pompes de ce type donnent entièrement satisfaction ; mais sont relativement complexes et surtout sont limitées quant à leur vitesse d'entraînement. La présente invention est relative à une pompe à barillet caractérisée par le fait que les alésages sont disposés radialement par rapport à l'axe du barillet. La pompe selon l'invention peut, en outre, comporter tout ou partie des dispositions suivantes : a. les alésages traversent le barillet selon un diamètre et sont divisés en deux parties égales par un bouchon central disposé sur l'axe du barillet ; b. dans chaque alésage est disposé un corps cylindrique faisant office de piston ; c. les pistons sont écartés de l'axe central du barillet par la force centrifuge lorsque ledit barillet est entraîné en rotation ; d. les pistons prennent appui, par leur extrémité faisant saillie hors du barillet, contre une couronne qui est excentrée par rapport à l'axe central du barillet ; de telle sorte que les pistons sont ramenés vers l'axe central lors de la rotation du barillet. A titre d'exemple non limitatif et pour faciliter la compréhension de l'invention, on a représenté aux dessins annexés : Figure 1 : une vue en coupe longitudinale d'un exemple de réalisation de l'invention.  special. Barrel pumps of known type comprise a barrel, that is to say a cylindrical body which has a plurality of bores, arranged around the axis of the cylinder, parallel to it, and in which are moving pistons which are animated by any appropriate means of reciprocating movement back and forth by which the action of pumping is done. Pumps of this type are entirely satisfactory; but are relatively complex and especially limited in their speed of training. The present invention relates to a barrel pump characterized in that the bores are arranged radially with respect to the axis of the barrel. The pump according to the invention may, in addition, comprise all or part of the following provisions: a. the bores pass through the barrel in a diameter and are divided into two equal parts by a central plug disposed on the axis of the barrel; b. in each bore is disposed a cylindrical body acting piston; vs. the pistons are spaced from the central axis of the cylinder by centrifugal force when said cylinder is rotated; d. the pistons bear, by their end protruding from the barrel, against a ring which is eccentric with respect to the central axis of the barrel; so that the pistons are brought back to the central axis during the rotation of the barrel. By way of nonlimiting example and to facilitate understanding of the invention, there is shown in the accompanying drawings: Figure 1: a longitudinal sectional view of an embodiment of the invention.

2904380 2 Figure 2 : une vue à échelle agrandie d'une partie de la figure 1, les pièces étant en position médiane. Figure 3 : une vue correspondant à la figure 2, après une rotation de 90 . Figure 4 : une vue en coupe selon BB de la figure 1.Figure 2 is an enlarged view of a portion of Figure 1, the parts being in the middle position. Figure 3: a view corresponding to Figure 2, after a rotation of 90. Figure 4: a sectional view along BB of Figure 1.

5 En se reportant à ces figures, on voit que la pompe indiquée par la référence générale P, est entraînée par un moteur M. La pompe P est constituée par un barillet 1 qui, dans l'exemple représenté, est un corps cylindrique plein, dont l'extrémité la est traversée, selon un diamètre, par un alésage 2.Referring to these figures, it is seen that the pump indicated by the general reference P is driven by a motor M. The pump P is constituted by a cylinder 1 which, in the example shown, is a solid cylindrical body, whose end is crossed, according to a diameter, by a bore 2.

10 Cet alésage 2 est séparé en deux parties égales 2a, 2b par un bouchon 3 placé sur l'axe XX du barillet 1. Dans les alésages 2a, 2b coulissent librement deux masselottes cylindriques 4a et 4b, qui font légèrement saillie hors de la partie cylindrique arrière la du barillet 1.This bore 2 is divided into two equal parts 2a, 2b by a plug 3 placed on the axis XX of the cylinder 1. In the bores 2a, 2b freely slide two cylindrical weights 4a and 4b, which protrude slightly out of the part cylindrical rear barrel 1.

15 Les extrémités des masselottes 4a, 4b qui font saillie hors du barillet la prennent appui contre une couronne circulaire 5. Comme on le voit à la figure 3, cette couronne est excentrée par rapport à l'axe XX. Cette pompe est destinée à être entraînée à de très grandes vitesses, de 20 l'ordre de 25.000 t/m. A de telles vitesses, les masselottes 4a, 4b sont écartées de l'axe XX par la force centrifuge et sont ramenées vers le centre par la couronne 5, qui est excentrée : ce mouvement de va et vient des masselottes 4a, 4b provoque un effet de pompage, lesdites masselottes faisant office de pistons.The ends of the weights 4a, 4b protruding from the barrel bear against a circular ring 5. As seen in Figure 3, this ring is eccentric with respect to the axis XX. This pump is intended to be driven at very high speeds, of the order of 25,000 rpm. At such speeds, the weights 4a, 4b are spaced from the axis XX by the centrifugal force and are brought towards the center by the ring 5, which is eccentric: this movement back and forth of the weights 4a, 4b causes an effect pumping, said weights acting as pistons.

25 Il faut que le liquide hydraulique puisse rentrer dans les alésages 2 lors du mouvement d'écartement des masselottes/pistons 4 et puisse être évacué sous pression lorsque ces masselottes/pistons 4 sont repoussées par la couronne 5.It is necessary that the hydraulic liquid can enter the bores 2 during the movement of separation of the weights / pistons 4 and can be evacuated under pressure when these weights / pistons 4 are pushed by the ring 5.

2904380 3 Dans ce but, les alésages 2a et 2b sont reliés, chacun, par une conduite 6a, 6b à une chambre 7 dans laquelle arrive le liquide hydraulique par une conduite d'admission 8. Un collecteur de refoulement 9 est appliqué par un ressort 10, contre la 5 face arrière, plane Il de la partie arrière la du barillet 1. L'extrémité dudit collecteur de refoulement 9 qui est en appui contre la face 11, comporte une coupelle cylindrique 12, qui communique avec une canalisation de sortie 13. Comme cela est indiqué sur la figure 2 par la ligne brisée Z, l'axe de la 10 coupelle 12 est excentré par rapport à l'axe XX du barillet 1. Comme on le voit en comparant les figures 2 et 3 il en résulte que, lorsque le barillet 1 exécute une rotation, dans un premier temps, un demi-tour, pendant que le piston 4a s'écarte, sous l'effet de la force centrifuge, la canalisation 6a communique avec la chambre 7 et le liquide hydraulique est 15 aspiré dans l'alésage 2a ; puis dans un deuxième temps, deuxième demi-tour, lorsque le piston 4a est repoussé par la couronne 5, qui est excentrée, le liquide est refoulé de l'alésage 2a, par la canalisation 6a qui se trouve, alors, en correspondance avec la coupelle 12, du fait de l'excentration de celle-ci. On obtient ainsi, à chaque tour, aspiration puis refoulement du liquide 20 hydraulique. Il est par ailleurs aisé d'agir sur l'excentricité de la couronne 5 et d'obtenir ainsi une pompe à cylindrée variable. De préférence, la couronne 5 est constituée par un roulement, les extrémités des pistons 4 étant en appui contre la bague intérieure dudit 25 roulement. Cette couronne intérieure est entraînée en rotation par l'appui exercé par les pistons, avec un léger glissement de ceux-ci. Une pompe, telle que celle représentée aux figures 1 à 3, peut être entraînée jusqu'à 20.000 t/m et plus sans qu'il soit nécessaire de pressuriser 30 l'alimentation de la pompe et elle peut fournir jusqu'à 700 bars de pression.For this purpose, the bores 2a and 2b are each connected by a pipe 6a, 6b to a chamber 7 in which the hydraulic liquid arrives via an intake pipe 8. A discharge manifold 9 is applied by a spring 10, against the rear face, flat It of the rear part of the barrel 1. The end of said discharge manifold 9 which bears against the face 11, has a cylindrical cup 12, which communicates with an outlet pipe 13 As indicated in FIG. 2 by the broken line Z, the axis of the cup 12 is eccentric with respect to the axis XX of the barrel 1. As can be seen by comparing FIGS. that, when the cylinder 1 performs a rotation, initially, a half-turn, while the piston 4a departs, under the effect of centrifugal force, the pipe 6a communicates with the chamber 7 and the hydraulic fluid is sucked into the bore 2a; then in a second step, second half-turn, when the piston 4a is pushed by the ring 5, which is eccentric, the liquid is discharged from the bore 2a, through the pipe 6a which is, then, in correspondence with the cup 12, because of the eccentricity thereof. This produces, at each turn, suction and discharge of the hydraulic fluid. It is also easy to act on the eccentricity of the ring 5 and thus obtain a variable displacement pump. Preferably, the ring 5 is constituted by a bearing, the ends of the pistons 4 being in abutment against the inner ring of said bearing. This inner ring is rotated by the support exerted by the pistons, with a slight sliding thereof. A pump, such as that shown in FIGS. 1 to 3, can be driven up to 20,000 rpm and more without the need to pressurize the pump supply and can supply up to 700 bar of pressure.

2904380 4 Tous les efforts sont des efforts radiaux, ce qui permet d'employer des moyens usuels, peu chers, pour assurer l'étanchéité. De préférence le collecteur 9 est constitué pour être hydrostatiquement équilibré, la surface de sa face arrière étant légèrement supérieure à celle de la 5 coupelle 12, le ressort 10 ayant seulement pour but de garantir un fonctionnement correct sans pression ou à très faible pression de refoulement. Dans l'exemple représenté, le barillet 1 est traversé par un seul alésage 2, mais il est possible de disposer plusieurs alésages munis chacun de deux pistons.2904380 4 All efforts are radial forces, which allows to use the usual means, inexpensive, to ensure tightness. Preferably, the collector 9 is constituted to be hydrostatically balanced, the surface of its rear face being slightly greater than that of the cup 12, the spring 10 being only intended to guarantee correct operation without pressure or at a very low discharge pressure. . In the example shown, the barrel 1 is traversed by a single bore 2, but it is possible to have several bores each provided with two pistons.

10 La présente invention permet de réaliser avec des moyens mécaniques simples et peu coûteux une pompe ayant des qualités remarquables.The present invention makes it possible to realize with a simple and inexpensive mechanical means a pump having remarkable qualities.

Claims (8)

REVENDICATIONS 1. Pompe à barillet caractérisée par le fait que les alésages (2) dans lesquels se déplacent les pistons (4) sont ménagés à travers le barillet (1) diamétralement à son axe (XX).  1. A barrel pump characterized in that the bores (2) in which the pistons (4) move are formed through the barrel (1) diametrically to its axis (XX). 2. Pompe selon la revendication 1, caractérisée par le fait que chaque perçage diamétral (2) est séparé en deux parties égales par un bouchon central (3) disposé sur l'axe du barillet (1).  2. Pump according to claim 1, characterized in that each diameter bore (2) is divided into two equal parts by a central plug (3) disposed on the axis of the barrel (1). 3. Pompe selon les revendications 1 et 2, caractérisée par le fait qu'elle peut comporter plusieurs alésages diamétraux (2), chaque demi-alésage (2a, 2b) étant muni d'une masselotte cylindrique (4a, 4b) faisant office de piston.  3. Pump according to claims 1 and 2, characterized in that it may comprise a plurality of diametrical bores (2), each half-bore (2a, 2b) being provided with a cylindrical weight (4a, 4b) serving as piston. 4. Pompe selon la revendication 3, dans laquelle lesdites masselottes cylindriques faisant piston (4) font saillie hors de la partie (1a) du barillet (1) dans lequel sont aménagés le ou les alésages (2) et prennent appui sur une couronne (5) qui est excentrée par rapport à l'axe (XX) du barillet ; de telle sorte que lesdites masselottes (4) sont écartées dudit axe ()(X) par la force centrifuge (phase d'aspiration) et en sont rapprochées par ladite couronne excentrée (5) (phase de refoulement) ; des moyens étant disposés pour faire communiquer les demi-alésages (2a, 2b) alternativement avec la canalisation d'admission (8) et la canalisation de refoulement (13).  4. Pump according to claim 3, wherein said piston-shaped cylindrical weights (4) protrude from the portion (1a) of the barrel (1) in which are arranged the bore or bores (2) and rest on a ring ( 5) which is eccentric with respect to the axis (XX) of the barrel; such that said weights (4) are spaced apart from said axis () (X) by the centrifugal force (suction phase) and are approached by said eccentric ring (5) (discharge phase); means being arranged for communicating the half-bores (2a, 2b) alternately with the intake pipe (8) and the discharge pipe (13). 5. Pompe selon la revendication 4, dans laquelle les moyens pour faire communiquer les alésages (2a, 2b) avec la canalisation d'alimentation (8) sont constitués par des canalisations (6a, 6b) débouchant dans une chambre (7) située à l'arrière du barillet (1), ladite canalisation d'alimentation (8) débouchant dans cette chambre (7).  5. Pump according to claim 4, wherein the means for communicating the bores (2a, 2b) with the supply pipe (8) are constituted by pipes (6a, 6b) opening into a chamber (7) located at the rear of the cylinder (1), said supply pipe (8) opening into this chamber (7). 6. Pompe selon la revendication 4, dans laquelle les moyens pour faire communiquer les alésages (2a, 2b) avec la canalisation de refoulement (13) sont constitués par un collecteur (9), appliqué contre la face arrière (11) du barillet (1) par un ressort (10), ce collecteur étant muni d'une coupelle (12) en communication avec ladite canalisation de refoulement (13) ; ledit collecteur (9) étant excentré par rapport à l'axe (XX) du barillet, de façon que chacune des 5 2904380 6 canalisations (6a, 6b) débouche pendant un demi-tour dans la chambre (7) et pendant un demi-tour dans la coupelle (12).  6. Pump according to claim 4, wherein the means for communicating the bores (2a, 2b) with the discharge pipe (13) are constituted by a collector (9), applied against the rear face (11) of the barrel ( 1) by a spring (10), this manifold being provided with a cup (12) in communication with said discharge pipe (13); said collector (9) being eccentric with respect to the axis (XX) of the barrel, so that each of the 5 2904380 6 pipes (6a, 6b) opens during a half-turn in the chamber (7) and for half a minute turn in the cup (12). 7. Pompe selon la revendication 6, dans laquelle le collecteur (9) est équilibré hydrostatiquement de façon à être maintenu par la pression en appui 5 contre la face arrière (11) du barillet (1).  7. Pump according to claim 6, wherein the collector (9) is hydrostatically balanced so as to be maintained by the pressure bearing against the rear face (11) of the barrel (1). 8. Pompe selon l'une quelconque des revendications précédentes, caractérisée par le fait que la pompe est une pompe à cylindrée variable.  8. Pump according to any one of the preceding claims, characterized in that the pump is a variable displacement pump.
FR0606863A 2006-07-26 2006-07-26 Pump e.g. spring barrel pump, has collector equipped with cup that communicates with conveyor duct, where collector is eccentric relative to axis of spring barrel, such that each of ducts empties into chamber during half-turn Withdrawn FR2904380A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR0606863A FR2904380A1 (en) 2006-07-26 2006-07-26 Pump e.g. spring barrel pump, has collector equipped with cup that communicates with conveyor duct, where collector is eccentric relative to axis of spring barrel, such that each of ducts empties into chamber during half-turn
DE602007002954T DE602007002954D1 (en) 2006-07-26 2007-06-27 Improvement of radial piston pumps
EP07290798A EP1887222B1 (en) 2006-07-26 2007-06-27 Improvement for radial piston pumps
US11/878,688 US20080025850A1 (en) 2006-07-26 2007-07-26 Spring barrel pumps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0606863A FR2904380A1 (en) 2006-07-26 2006-07-26 Pump e.g. spring barrel pump, has collector equipped with cup that communicates with conveyor duct, where collector is eccentric relative to axis of spring barrel, such that each of ducts empties into chamber during half-turn

Publications (1)

Publication Number Publication Date
FR2904380A1 true FR2904380A1 (en) 2008-02-01

Family

ID=37507865

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FR0606863A Withdrawn FR2904380A1 (en) 2006-07-26 2006-07-26 Pump e.g. spring barrel pump, has collector equipped with cup that communicates with conveyor duct, where collector is eccentric relative to axis of spring barrel, such that each of ducts empties into chamber during half-turn

Country Status (4)

Country Link
US (1) US20080025850A1 (en)
EP (1) EP1887222B1 (en)
DE (1) DE602007002954D1 (en)
FR (1) FR2904380A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3012181A1 (en) * 2013-10-22 2015-04-24 Hydro Leduc HYDRAULIC PISTON PUMP WITH BI-DIRECTIONAL ICE DISTRIBUTION

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EP0812985A1 (en) * 1996-06-04 1997-12-17 Lucas Industries Public Limited Company Rotary pump and cam ring therefor
DE19843120C1 (en) * 1998-09-21 1999-12-30 Bosch Gmbh Robert Adjustable radial piston pump or motor
WO2002084105A1 (en) * 2001-04-18 2002-10-24 Robert Bosch Gmbh High-pressure fuel pump for a fuel system of a direct injection internal combustion engine, fuel system and internal combustion engine
US20040065192A1 (en) * 2002-10-08 2004-04-08 Komatsu Ltd. Radial type hydraulic machine

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DE3628769A1 (en) * 1986-08-25 1988-03-10 Teves Gmbh Alfred Radial piston pump
EP0812985A1 (en) * 1996-06-04 1997-12-17 Lucas Industries Public Limited Company Rotary pump and cam ring therefor
DE19843120C1 (en) * 1998-09-21 1999-12-30 Bosch Gmbh Robert Adjustable radial piston pump or motor
WO2002084105A1 (en) * 2001-04-18 2002-10-24 Robert Bosch Gmbh High-pressure fuel pump for a fuel system of a direct injection internal combustion engine, fuel system and internal combustion engine
US20040065192A1 (en) * 2002-10-08 2004-04-08 Komatsu Ltd. Radial type hydraulic machine

Also Published As

Publication number Publication date
EP1887222A1 (en) 2008-02-13
EP1887222B1 (en) 2009-10-28
DE602007002954D1 (en) 2009-12-10
US20080025850A1 (en) 2008-01-31

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