EP2642122B1 - Groupe motopompe - Google Patents

Groupe motopompe Download PDF

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Publication number
EP2642122B1
EP2642122B1 EP12160580.2A EP12160580A EP2642122B1 EP 2642122 B1 EP2642122 B1 EP 2642122B1 EP 12160580 A EP12160580 A EP 12160580A EP 2642122 B1 EP2642122 B1 EP 2642122B1
Authority
EP
European Patent Office
Prior art keywords
pressure
valve
housing
low
pump
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.)
Not-in-force
Application number
EP12160580.2A
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German (de)
English (en)
Other versions
EP2642122A1 (fr
Inventor
Georg Neumair
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.)
Hawe Hydraulik SE
Original Assignee
Hawe Hydraulik SE
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 Hawe Hydraulik SE filed Critical Hawe Hydraulik SE
Priority to EP12160580.2A priority Critical patent/EP2642122B1/fr
Priority to US13/839,122 priority patent/US9212655B2/en
Priority to CN201310090780.9A priority patent/CN103321869B/zh
Publication of EP2642122A1 publication Critical patent/EP2642122A1/fr
Application granted granted Critical
Publication of EP2642122B1 publication Critical patent/EP2642122B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F04B1/06—Control
    • F04B1/08—Control regulated by delivery pressure
    • 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
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/06—Mobile combinations
    • 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
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors

Definitions

  • the invention relates to a pump unit according to the preamble of patent claim 1.
  • Such a pump unit A ( Fig. 1 and 2 ) is manufactured and distributed by the applicant and is used for installation, for example in portable tool units, such as torque wrenches for high torque torques for installation of wind turbines, which in a version with a non-starting single-phase AC under oil motor 7 in a valve combination V outside the housing, a pressure switch DW is included, which can be omitted in designs (not shown) with a starting against pressure three-phase under oil engine.
  • the housing which is often installed in horizontal operating position, consists of an externally ribbed pipe section 1, mounted thereon housing covers 2, 4, and an optionally provided cooling fan 3 on a housing cover 2.
  • the housing has ( Fig.
  • valve combination V contains, in addition to the system pressure limiting valve DB, a low-pressure reversing valve U to the return line 9, a check valve R, optionally a pressure switch DW with assigned diaphragm B and optionally a secondary pressure limiting valve SD. At least one directional valve W is attached to the block structure of the valve combination V.
  • a similar pump unit with a two-circuit pump system is known from EP 2 330 304 A , Again, the valve combination is mounted outside on the housing.
  • EP 2 241 753 A WO 2008/055147 A2 . US 2006/255657 A1 . US 4,651,380 A. and EP 1 731 762 A ,
  • the invention has for its object to provide a pump unit of the type mentioned with reduced for a given performance specification weight.
  • the pump unit By incorporating at least the low pressure switching valve and the check valve into the housing interior, so to speak under oil, in a more compact arrangement with shorter flow paths and easy mounting options and by a reduced oil absorption volume in the housing by the incorporated components, the pump unit is considerably easier, and is also the structure externally mounted components less bulky. Since the delivery flows of the pumps are already combined inside the housing and only a single pressure outlet of the housing is required, this restructuring also contributes to the weight saving compared to the known construction and an external sealing area is saved. The weight savings can be further increased if a smaller sub-oil engine with high or increased power density is used. With a pump unit with a single-phase AC under-oil engine and a pressure switch, more than one third of the weight can be saved compared with a known pump unit of the same performance specification.
  • the pressure switch is installed to the return line, but with an associated aperture together with the low pressure switching valve and the check valve inside the housing and in a very compact overall arrangement in the housing , which further saves weight.
  • a three-phase oil sub engine is used instead of an AC sub oil engine, the structural conditions for integrating the pressure switch and its diaphragm can optionally be retained without, however, installing the pressure switch and the diaphragm.
  • the flow channels provided for their functions can be closed by plugs.
  • the low pressure switching valve, the check valve, and optionally the pressure switch are arranged with their diaphragm in a common, very compact valve block which is mounted inside the housing to pump elements of both pumps, wherein the pump elements are installed on a housing inner wall structure.
  • This equipment components are grouped in this way in a confined space, resulting in a noticeable weight savings, and only a small volume of oil is occupied.
  • valve block which receives the equipment components inside the housing, has only a single outlet which passes through the housing inner wall structure the pressure outlet of the housing is connected, which indirectly contributes to weight savings, because housing channels are shortened and eliminated and only an outer sealing area is needed.
  • the valve block has an approximately trapezoidal outline, which can be snuggled into a space-saving manner in an approximately circular inner cross-section of the housing.
  • This valve block can be made extremely compact, and contains in a confined space all incorporated inside the housing valve components.
  • a plurality of high-pressure and low-pressure pump elements of the two pumps are installed in the circumferential direction about a drive shaft of the sub-oil engine alternately and substantially in the same radial plane of the housing on the housing inner wall structure.
  • three high-pressure pump elements and three low-pressure pump elements are expedient, which are connected to each other via a high-pressure or a low-pressure pressure collecting ring, which summarizes the flow rates.
  • This concept is favorable for mounting the valve block, which, preferably, is mounted on collecting plates of the low-pressure pressure collecting ring, which thus also take on the additional task of placing the valve block. This design saves considerable space, especially in the direction of the drive shaft axis.
  • the high-pressure pressure collecting ring In view of a compact construction inside the housing despite the incorporation of the equipment components, it is expedient for the high-pressure pressure collecting ring to have a body which is mounted under a high-pressure pump element and has a connection extension through which the outlet of the valve block communicates with the pressure outlet of the housing is connected. This takes place, preferably, via a pressure tube pressed into the connection extension of the body and through the drilled-out housing inner wall structure. In this way, the single outlet of the valve block is connected in a short path to the pressure outlet of the housing.
  • the pump unit can be designed for a standing or a horizontal operating position, depending on the selected operating position suction hoses are performed on at least some of the high pressure and / or low pressure pump elements to a dependent depending on the use position deep sump inside the housing. Especially in portable tool units such a pump unit is usually installed in horizontal operating position.
  • the housing has an externally ribbed pipe section with the internally molded housing inner wall structure both for fixing the lower oil motor and for mounting the pump, e.g. a light metal cast body, which is closed at both ends by attached housing cover.
  • a housing cover carries a cooling fan, such as an electric cooling fan.
  • external parts of the valve combination are mounted with the directional control valve on the single pressure outlet of the housing to the housing outer wall, in particular the system pressure relief valve, and a secondary pressure relief valve, wherein the directional control valve can be mounted either on the system pressure relief valve or the secondary pressure relief valve.
  • a weight-saving design is given when the diaphragm, the check valve, the low-pressure switching valve and the optionally provided pressure switch have in each case in valve blocks running in the valve block connected inside the valve inserts used. This is convenient to install and also saves costs, since highly loaded or specially machined or tempered valve inserts made of high-quality steel or tool steel are housed in the block bores of the valve block made of plain steel.
  • a compact housing of the internally incorporated components of the valve combination is possible when a connection of the valve block with an outlet of the high-pressure pressure collecting ring and the single outlet of the valve block are connected to an inlet of the body of the high-pressure pressure collecting ring via a respective inserted pressure tube, and if the Valve block with an inlet to the check valve sealed directly above an outlet, preferably in a collecting plate, the low-pressure pressure collecting ring is mounted.
  • the valve block with a minimum volume of material, since the port, the outlet and the inlet can be placed directly in at least one outer side of the valve block.
  • Fig. 1 shows that the housing 1, 2, 3, 4 of the pump unit A according to the invention for the given performance specification same external dimensions
  • the valve combination V in the known pump unit A in Fig. 1 outside the low-pressure switching valve U, the check valve R, the system pressure limiting valve DB, the pressure switch DW with associated diaphragm B and the optional secondary pressure relief valve SD comprises in Fig. 3 , outside only the system pressure limiting valve DB, the optional provided secondary pressure relief valve SD of the valve combination V and the at least one directional control valve W in the pump unit A according to the invention mounted externally, with fastening screws 15 on a single pressure outlet 13 of the housing.
  • the housing comprises the pipe section 1, the housing cover 2, 4 and optionally the example electric cooling fan 3.
  • the pipe section 1 may be a light metal or light metal alloy casting.
  • the pump set A in Fig. 4 is to scale different from the pump unit A of the prior art in Fig. 2
  • the high-pressure pump 5 discharge pressure P1
  • the low-pressure pump 6 discharge pressure P3
  • this common electric sub-oil engine 7 here for example a single-phase AC motor, to start the pressure switch DW should have.
  • the housing has the return connection 8, through which the return line 9 extends from the valve combination V and the directional control valve W into the housing interior.
  • the pump unit A has only a single pressure outlet 13 (delivery pressure P ') to the valve combination V on the housing.
  • the pressure outlet 13 comprises a ( Fig. 6 ) Pressure tube 23, which leads from a single outlet 14 of an inner valve block 10 to the pressure outlet 13, via which the valve combination V is mounted externally on the housing.
  • the valve block 10 includes the baffle B, the check valve R, the low pressure switching valve U and the optional pressure switch DW.
  • the delivery outlet of the high pressure pump 5 is connected at 11 to the valve block 10, for example by means of a pressure tube 38 (delivery pressure P1 of the high pressure pump 5), while the delivery outlet of the low pressure pump 6 is connected to an inlet 12 in the valve block 10 (delivery pressure P3 of the low pressure pump 6).
  • the low-pressure switching valve U is biased by a spring 37 in the reverse direction, and is connected via a pilot line 41 with an aperture 42 therein in the open direction applied.
  • the pressure switch DW if present, is biased by a spring 35 in the direction of control to the return line 9 by a spring 35 and in up and Zu Kunststoffraumen also via pilot lines 31, 31 'acted upon, which are formed as housing channels in the valve block 10.
  • the housing channels in the valve block 10 may be closed by plugs 40, or, alternatively, an even more compact valve block 10 may be used, which the pressure switch DW (and does not contain the diaphragm B) (not shown).
  • the housing channels in the valve block 10 in Fig. 4 (Pilot control line 31, a branch line via the check valve R, the pilot line 41, and a connecting line 32 via the pressure switch DW to the return channel 9 branches off from a pressure line in the valve block 10 from the inlet 11 to the outlet 14 and via the pressure tube 23 to the pressure outlet 13th
  • the low-pressure change-over valve U is contained in a working line guided from the second inlet 12 of the valve block 10 to the return line 9, to which the connecting line guided via the check valve R is connected to the single outlet 14 of the valve block 10, a further pressure tube 39 can be installed (see also Fig. 6 ).
  • Fig. 5 shows the pump unit A of the invention in a side view with omitted valve combination V.
  • pressure P ' On both sides of the single pressure outlet 13 (pressure P ') are bores 15' for the in Fig. 3 placed fastening screws 15 shown.
  • the return port 8 may be located in the housing outer wall.
  • FIG. 6 The sectional view in Fig. 6 (Section VI - VI in Fig. 5 ) shows the internal structure of the housing 1, 2, 4, 3 in detail.
  • the pipe section of the housing 1 has a molded-in inner wall structure 16, which serves for mounting a stator of the sub-oil motor 7, the drive shaft 24 through an unspecified highlighted bearing in the inner wall structure 16 to a drive eccentric 25 for the high pressure and low pressure pumps 5, 6 leads.
  • the high-pressure pump 5 consists in the embodiment shown, for example, three offset by 120 ° about the drive shaft axis offset piston pump elements 5 ', which are mounted on a high-pressure pressure collecting ring 19 and with this on the inner wall structure 16.
  • the low-pressure pump 6 likewise comprises, for example, three low-pressure piston pump elements 6 'which are grouped around the drive shaft axis 24 by 120 ° and mounted, for example, via spacers with fastening screws 17 on the housing inner wall structure 16, so that they are in the circumferential direction regularly alternating high-pressure pump elements 5 'and low-pressure pump elements 6'.
  • a low-pressure pressure collecting ring 26 is mounted, on which directly the valve block 10 can be mounted, with the same fastening screws 17 Fig. 7, 8 and 14, 15 directed.
  • the three collecting plates 27 of the low pressure pressure collecting ring 26 are connected to each other via pipe sections 28, so that all three low-pressure pump elements 6 'together in the second inlet 12 promote.
  • FIGS. 14 and 15 illustrated body 20 via pipe sections 21 with two further bodies 22, 22 '( Fig. 14 ) of the high-pressure collecting ring.
  • a pressure tube 39 connects the single outlet 14 of the valve block 10 to the body 20.
  • Another pressure tube 38 (pressure P1) connects the inlet 11 of the valve block 10 with another body 22 '(FIG. Fig. 14
  • the valve block 10 contains the check valve R, the diaphragm B, the low-pressure changeover valve U, and the optionally required pressure switch DW in an extremely compact arrangement and connected according to in Fig. 4 indicated housing channels in the valve block 10.
  • At least some of the high-pressure and / or low-pressure pump elements 5 ', 6' are connected via suction hoses 18 with a depending on the operating position of the pump unit A (vertical or horizontal) low-lying oil sump (return line 9).
  • Fig. 7 illustrates a mounting phase of the pump assembly A, in which initially the high-pressure pump elements 5 'and the low-pressure pump elements 6' and the suction hoses 18, the in Fig. 7 non-visible high-pressure pressure collecting ring 19 and the low-pressure collecting ring 26 with the pipe sections 28 and the collecting plates 27 are mounted on the low pressure pump elements 6 'on the housing inner wall structure 16.
  • the high-pressure pressure collecting ring 19 is a port exposed to the inlet 11 of the valve block 10 (FIG. Fig. 6 ), while in the body 20 of the high-pressure pressure collecting ring 19 under another high-pressure pump element 5 'an inlet 14' is exposed, which is aligned with the single outlet 14 of the valve block 10 to be mounted.
  • valve block 10 is installed under the suction hoses 18 and fixed with the same fastening screws 17, which also fix two of the low-pressure pump elements 6 'on the housing inner wall structure 16.
  • the pressure pipes 38, 39 (indicated by dashed lines), make pressure-tight connections between the valve block 10 and the bodies 22 ', 20 of the high-pressure pressure collecting ring 19 ago.
  • Fig. 9 is a side view of the valve block 10, which may have an approximately trapezoidal outline, and according to Fig. 8 is nestled in the largely round inner cross-section of the housing.
  • Fig. 9 shows the valve block outside, in which the only outlet 14 (pressure P '), in which the pressure tube 39 is introduced, the inlet 11, in which the pressure tube 38 is introduced (pressure P1), and the area 12 with the opening 29th lie to the check valve R.
  • pressure P ' the only outlet 14
  • the pressure P1 in which the pressure tube 39 is introduced
  • pressure P1 the area 12 with the opening 29th lie to the check valve R.
  • Fig. 9 the grouping of the diaphragm B, the pressure switch DW, the low-pressure switching valve U and the check valve R in the valve block 10th
  • FIG. 10 The corresponding sectional view in Fig. 10 (Section plane X - X in Fig. 9 ) shows a baffle insert 30 in a block bore, to which the inlet 11 is connected, branches off from the upstream of the baffle insert 30, the control line 31 to the closing control side of the pressure switch DW, and from the downstream of the baffle insert 30, the connecting line 32 branches off, via the pressure switch DW leads to the return channel 9.
  • Some of the block holes are in Fig. 10 closed by screw plugs.
  • Fig. 11 shows in section (section plane XI - XI in Fig. 9 ) the pressure switch DW, which includes a seat valve cone 33 in a block bore, which cooperates with a valve seat 34 of a sleeve insert and is acted upon by the spring 35 in the opening direction.
  • the control line 31 is connected, while the control line 31 'branches off from the connecting line 32 and leads to the opening control side in the region of the spring 35 of the seat poppet 33.
  • Fig. 12 shows in section (section plane XII - XII in Fig. 9 ) the low-pressure switching valve U with a valve spool 36 in a block bore of the valve block 10.
  • the valve spool 36 is acted upon in the blocking position shown by the spring 37 and separates a housing channel 43 of the return line 9.
  • the valve spool 36 ( Fig. 12 up) is the valve spool 36, the diaphragm (or nozzle) 42 from the control channel 41 is applied, which branches off from the coming of the diaphragm B connecting line 32.
  • Fig. 13 shows in section (section plane XIII - XIII in Fig. 9 ) the check valve R with a seat 44 forming Einschraubhub and a mushroom-shaped valve member 45 which separates the connection line 32 from the low pressure switching valve U leading channel 43 in a block bore.
  • the block bore has the opening 29 (pressure P3) with the in Fig. 7 shown opening 29 'is aligned.
  • Fig. 14 schematically illustrates the high-pressure pressure collecting ring 19 with the three bodies 20, 22 and 22 ', which are connected to each other via the pipe sections 21.
  • the body 20 has on one side a connection extension 47 in which a bore 46 for pressing in the pressure tube 23 is formed, which is connected via a channel 48 to a connection 39 "in which the pressure tube 39 is seated
  • High-pressure pressure collecting ring 19 has a connection 38 ", in which the pressure tube 38 is seated, and which communicates with the pipe section 21.
  • shutoff position of the low pressure switching valve U are combined and first flow through the standing in the passage position pressure switch DW in the return line 9, so that the lower oil motor 7 is able to start easily in the case of a single-phase AC motor.
  • the pressure switch DW is brought into the blocking position via the control line 31 so that when the check valve R is open, the pumped pressure medium (pressure P ') is present at the single pressure outlet 13 of the housing ,
  • the low-pressure switching valve U is controlled, so that the flow rate (delivery pressure P3) of the low-pressure pump 6 low resistance is promoted in the return line 9, and only the high-pressure pump 5 at then kept closed check valve R to the single pressure outlet 13 promotes (pressure P ') until finally the desired maximum pressure (limited by the system pressure relief valve DB) of, for example, 700 bar is reached, which is processable at the pressure port P from the directional control valve W.
  • the secondary pressure is limited by the secondary pressure relief valve SD to 100 bar at the consumer port A '.
  • the summed flow rates of both pumps 5, 6 are used, for example, for a fast idle stroke, while the flow is used only the high-pressure pump 5 to build up the required high maximum pressure of, for example, about 700 bar, after the backlash is passed.
  • the pressure switch DW can be omitted or passivated.

Claims (12)

  1. Groupe moteur-pompe (1) pour l'alimentation d'au moins un distributeur (W), comprenant un carter (1, 2, 4) renfermant une pompe haute-pression (5) et une pompe basse-pression (6) et leur moteur électrique (7) commun immergé dans l'huile et de l'huile, comprenant par ailleurs un raccord d'écoulement de retour (8) raccordé à une conduite d'écoulement de retour (9), et comprenant un agencement de vannes (V), qui est monté entre des sorties de refoulement séparées des pompes (5, 6) et un raccord de pression (P), et qui comporte au moins une vanne de commutation basse-pression (U) vers la conduite d'écoulement de retour (9), commandée en ouverture en fonction de la pression, une vanne anti-retour (R) réunissant les écoulements de refoulement des pompes (5, 6) jusqu'à l'ouverture commandée de la vanne de commutation basse-pression (U), et une vanne de limitation de la pression du système (DB),
    caractérisé en ce que concernant la combinaison de vannes (V), au moins la vanne de commutation basse-pression (U) et la vanne anti-retour (R) sont agencées à l'intérieur du carter (1, 2, 4) et sont montées en circuit de manière telle, que les écoulements de refoulement des pompes (5, 6) puissent être réunis à l'intérieur du carter en une sortie de pression (P', 13) unique du carter, à laquelle est raccordée au moins la vanne de limitation de la pression du système (DB) montée à l'extérieur du carter.
  2. Groupe moteur-pompe selon la revendication 1, caractérisé en ce que la combinaison de vannes (V) comprend, pour un moteur à courant alternatif immergé dans l'huile (7) des pompes (5, 6), une balance de pression (DW) vers la conduite de retour (9), et un diaphragme (B) associé à la balance de pression, et en ce que la balance de pression (DW) et le diaphragme (B) sont agencés en commun avec la vanne de commutation basse-pression (U) et la vanne anti-retour (R), à l'intérieur du carter (1, 2, 4).
  3. Groupe moteur-pompe selon la revendication 1 ou la revendication 2, caractérisé en ce que la vanne de commutation basse-pression (U), la vanne anti-retour (R) et, le cas échéant, la balance de pression (DW) avec son diaphragme (B), sont agencés dans un bloc de vannes commun (10), qui est monté, à l'intérieur du carter, sur des éléments de pompe (5', 6') des deux pompes (5, 6) placés sur une structure de paroi intérieure de carter (16).
  4. Groupe moteur-pompe selon la revendication 3, caractérisé en ce que le bloc de vannes (10) présente une sortie (14) unique, qui est reliée, à travers la structure de paroi intérieure de carter (16), à la sortie de pression (13, P') du carter (1, 2, 4).
  5. Groupe moteur-pompe selon la revendication 3, caractérisé en ce que le bloc de vannes (10) présente un tracé de contour approximativement de forme trapézoïdale, pouvant s'insérer étroitement dans une section transversale intérieure approximativement circulaire du carter (1, 2, 4).
  6. Groupe moteur-pompe selon la revendication 3, caractérisé en ce que plusieurs éléments de pompe haute-pression et basse-pression (5', 6'), de préférence respectivement trois de chacun, reliés respectivement par l'intermédiaire d'un anneau collecteur de pression haute-pression et basse-pression (26, 19), sont placés sur la structure de paroi intérieure de carter (16), de manière alternée dans la direction périphérique autour d'un arbre d'entraînement (24) du moteur (7) immergé dans l'huile, et sensiblement dans le même plan radial du carter, et en ce que, de préférence, le bloc de vannes (10) est monté sur des plaques collectrices (27) de l'anneau collecteur de pression basse-pression (26).
  7. Groupe moteur-pompe selon les revendications 4 à 6, caractérisé en ce que l'anneau collecteur de pression haute-pression (19) comprend un corps (20) monté sous un élément de pompe haute-pression (5') et comportant un prolongement de raccordement (47), et à travers lequel la sortie (14) du bloc de vannes (10) est reliée à la sortie de pression (13, P') du carter (1, 2, 4), de préférence par l'intermédiaire d'un tube de pression (23) monté à force dans le prolongement de raccordement (47) du corps (20) et à travers la structure de paroi intérieure de carter (16) percée.
  8. Groupe moteur-pompe selon la revendication 1, caractérisé en ce qu'en fonction d'une position de service debout ou couchée, prédéterminée, du groupe moteur-pompe (A), des tuyaux d'aspiration (18) sur au moins quelques-uns des éléments de pompe haute-pression et/ou basse-pression (5', 6'), mènent jusqu'au bain d'huile en position basse dans le carter (1, 2, 4) en fonction de la position de service.
  9. Groupe moteur-pompe selon la revendication 1, caractérisé en ce que le carter (1, 2, 4) est un tronçon de tube à ailettage extérieur, comportant la structure de paroi intérieure de carter (16) destinée aussi bien à la fixation du moteur (7) immergé dans l'huile, qu'au montage des pompes (5, 6), ledit tronçon de tube présentant des couvercles de carter (2, 4) rapportés aux deux extrémités, un couvercle de carter (2) portant de préférence un ventilateur de refroidissement (3).
  10. Groupe moteur-pompe selon la revendication 1, caractérisé en ce que des parties individuelles de la combinaison de vannes (V), situées à l'extérieur, sont montées avec le distributeur (W) par-dessus la sortie de pression (13) du carter et sur la paroi extérieure du carter, notamment la vanne de limitation de la pression du système (DB) et, de préférence, une vanne de limitation de pression secondaire (SD) sur laquelle est rapporté le distributeur (W).
  11. Groupe moteur-pompe selon l'une au moins des revendications précédentes, caractérisé en ce que le diaphragme (B), la vanne anti-retour (R), la vanne de commutation basse-pression (U) et la balance de pression (DW) présentent des inserts de vanne (30, 33, 36, 45) insérés dans des alésages de bloc reliés par l'intermédiaire de canaux s'étendant à l'intérieur du boc de vannes (10).
  12. Groupe moteur-pompe selon l'une au moins des revendications précédentes, caractérisé en ce qu'un raccord (38') du bloc de vannes (10) est relié à une ouverture (38") de l'anneau collecteur de pression haute-pression (19), et l'unique sortie (14, 39') du bloc de vannes (10) est reliée à une ouverture (39") du corps de raccordement (20) de l'anneau collecteur de pression haute-pression (19), par l'intermédiaire, à chaque fois, d'un tube de pression (38, 39) inséré, et en ce que le bloc de vannes (10) est monté de manière étanche, avec une ouverture (29) vers la vanne anti-retour (R), directement par-dessus une sortie (29'), de préférence dans une plaque collectrice (27) de l'anneau collecteur de pression basse-pression (26).
EP12160580.2A 2012-03-21 2012-03-21 Groupe motopompe Not-in-force EP2642122B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP12160580.2A EP2642122B1 (fr) 2012-03-21 2012-03-21 Groupe motopompe
US13/839,122 US9212655B2 (en) 2012-03-21 2013-03-15 Pump aggregate
CN201310090780.9A CN103321869B (zh) 2012-03-21 2013-03-20 泵总成

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12160580.2A EP2642122B1 (fr) 2012-03-21 2012-03-21 Groupe motopompe

Publications (2)

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EP2642122A1 EP2642122A1 (fr) 2013-09-25
EP2642122B1 true EP2642122B1 (fr) 2014-05-21

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EP12160580.2A Not-in-force EP2642122B1 (fr) 2012-03-21 2012-03-21 Groupe motopompe

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US (1) US9212655B2 (fr)
EP (1) EP2642122B1 (fr)
CN (1) CN103321869B (fr)

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DE102010062936A1 (de) * 2010-12-13 2012-06-14 Jungheinrich Aktiengesellschaft Hydraulikaggregat
CN105464996B (zh) * 2014-08-15 2019-06-11 德昌电机(深圳)有限公司 电动液泵
DE102016225923B4 (de) * 2016-12-21 2020-06-18 Hawe Hydraulik Se Pumpenaggregat für ein Hydrauliksystem und Kanalelement für ein Pumpenaggregat
CN107339203A (zh) * 2017-03-06 2017-11-10 惠州科赛医疗有限公司 一种稳压泵
EP3635251B1 (fr) * 2017-05-16 2023-09-20 Enerpac Tool Group Corp. (a1 a4) pompe hydraulique
DE102018214555B4 (de) * 2018-08-28 2022-09-08 Hawe Hydraulik Se Modulares Motorpumpenaggregat
US11958177B2 (en) 2018-09-07 2024-04-16 Milwaukee Electric Tool Corporation Hydraulic piston pump for a hydraulic tool
US11193508B2 (en) 2018-11-13 2021-12-07 Enerpac Tool Group Corp. Hydraulic power system and method for controlling same
USD924938S1 (en) 2019-07-29 2021-07-13 Hawe Hydraulik Se Housing portion for a hydraulic pump
JP1663520S (fr) * 2019-07-29 2020-07-13
JP1663497S (fr) * 2019-07-29 2020-07-13
SE544129C2 (sv) * 2020-03-09 2022-01-04 Sahlins Sweden Ab Portabelt hydraulaggregat

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2578146A (en) * 1947-08-26 1951-12-11 Chrysler Corp Compressor
US4651380A (en) * 1985-03-01 1987-03-24 Rug Doctor, Inc. Portable vacuum cleaning machine
CN2262119Y (zh) * 1995-07-13 1997-09-10 康铧 油泵总成
DE20007554U1 (de) * 2000-04-26 2000-08-10 Heilmeier & Weinlein Motor-Pumpenaggregat
DE20116921U1 (de) * 2001-10-15 2002-01-03 Heilmeier & Weinlein Elektrohydraulisches Motorpumpenaggregat, Anbauelement und Druckbegrenzungsventil
DE112005002804B4 (de) * 2004-11-19 2014-07-31 Richard Bergner Verbindungstechnik Gmbh & Co. Kg Hydraulikaggregat sowie Verfahren zur Bereitstellung einer unter Druck stehenden Hydraulikflüssigkeit
DE202005005620U1 (de) 2005-04-08 2006-08-17 Hawe Hydraulik Gmbh & Co. Kg Pumpenaggregat
US20060255657A1 (en) * 2005-05-13 2006-11-16 De Ojeda William High pressure fluid system inlet throttle and method
DE112007002567T5 (de) * 2006-10-31 2009-11-05 Actuant Corp., Butler System und Verfahren für ein gesteuert betätigtes Hochdruckventil
CN201306237Y (zh) * 2008-11-25 2009-09-09 柯桂华 一种柴油发动机电动输油泵总成
ES2389633T3 (es) 2009-04-15 2012-10-29 Hawe Hydraulik Se Grupo motobomba
EP2330304B1 (fr) 2009-11-30 2012-07-18 HAWE Hydraulik SE Ensemble hydraulique

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EP2642122A1 (fr) 2013-09-25
US9212655B2 (en) 2015-12-15
CN103321869B (zh) 2017-03-01
US20130251558A1 (en) 2013-09-26
CN103321869A (zh) 2013-09-25

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