EP0705980B1 - Groupe de pompage hydraulique - Google Patents

Groupe de pompage hydraulique Download PDF

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Publication number
EP0705980B1
EP0705980B1 EP95112496A EP95112496A EP0705980B1 EP 0705980 B1 EP0705980 B1 EP 0705980B1 EP 95112496 A EP95112496 A EP 95112496A EP 95112496 A EP95112496 A EP 95112496A EP 0705980 B1 EP0705980 B1 EP 0705980B1
Authority
EP
European Patent Office
Prior art keywords
pump
connection element
insertion part
hydraulic
pressure medium
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
EP95112496A
Other languages
German (de)
English (en)
Other versions
EP0705980A1 (fr
Inventor
Wilhelm Dworak
Olaf Dipl.-Ing. Klemd
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0705980A1 publication Critical patent/EP0705980A1/fr
Application granted granted Critical
Publication of EP0705980B1 publication Critical patent/EP0705980B1/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
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/406—Casings; Connections of working fluid especially adapted for liquid pumps
    • 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
    • F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/021—Units comprising pumps and their driving means containing a coupling

Definitions

  • the invention relates to a hydraulic unit (eg DE-A-3 144 983) according to the Preamble of claim 1.
  • the hydraulic units used consist of a pump and a connecting element connected to the pump, preferably consists of aluminum, and manufactured in the die casting process is.
  • In the connection element are channels for the pressure medium through cutting processes such as Turning or drilling educated.
  • the connection element is together with the pump flanged to a drive motor.
  • the disadvantage is that the entire connector because of the channels for the Pressure medium consists of high pressure resistant material. Thereby it is relatively expensive to manufacture and beyond also relatively difficult.
  • the training of Channels or by reclamping the connection element in a Machine tool requires a relatively high level of handling.
  • the Noise or vibration behavior of the hydraulic unit also relatively bad, since this is due to the training of Connection element in metal hardly damping properties owns.
  • the hydraulic unit according to the invention with the characteristic Features of claim 1 has the advantage that it is relatively inexpensive to manufacture and particularly light is. Handling during manufacture is special easy, because the insert parts only in the Connection element must be used. Through the Use of plastic for the connection element also a particularly good noise and Vibration damping achieved.
  • Figure 1 shows a hydraulic unit in side view and partly in longitudinal section.
  • the hydraulic unit consists of a pump 10 and a the pump 10 connected connector 11. That from Plastic existing connector 11 is approximately disc-shaped and has 12 in its central axis running two holes 14, 15, one of which through the Connection element 11 formed guide web 16 from each other are separated.
  • the pump 10 is bsw with the connecting element 11. by Screwed connected so that the extension 18 and the Drive shaft 19 of the pump 10 in the first bore 14 of the Project connection element 11.
  • the bore 14 is like this trained that they form-fitting the extension 18 encloses.
  • the respective end faces 20, 21 of the pump 10 or the connecting element 11 in their Cover area flat against each other.
  • connection element 11 On the opposite side of the pump 10 Connection element 11 is the hydraulic unit bsw. at one Drive motor, not shown, for the pump 10 flanged.
  • a receptacle 23 which corresponding end face of the drive motor with a positive fit encloses.
  • a nose 24 formed on the connection element 11 serves to prevent rotation or installation in the correct position of the drive motor.
  • the Drive shaft of the drive motor through the guide web 16 guided.
  • the connecting element 11 In the end face 21 facing the pump 10 and on the circumference there is a recess 26, 27 in the connecting element 11 trained, which open into each other at right angles.
  • the Recesses 26, 27 are either BSW. cutting by drilling manufactured, or are preferably already in the injection mold for the connecting element 11 is taken into account accordingly, i.e. that the recesses 26, 27 by spraying the Connection element 11 result.
  • the recesses 26, 27 In the recesses 26, 27 is each a pressure medium tube 28, 29 made of metal used, the outer diameter of the tube 29 larger is than the outer diameter of the tube 28.
  • the tube 28 protrudes with one end in the tube 29, and the other end of the Tube 28 protrudes from the end face 21 of the connecting element 11. There it is from a corresponding one Pressure medium connection bore 30 of the pump 10 comprises.
  • tubes 28, 29 also differently designed elements for management or leadership of the pressure medium can be used. These can be have a polygonal cross section, the Recesses 26, 27 are to be adapted accordingly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)

Claims (6)

  1. Groupe de pompage hydraulique consistant en une pompe (10) et en un élément de raccordement (11), relié à la pompe (10), réalisé en matière plastique, dans lequel il est constitué dans l'élément de raccordement (11) au moins un canal (31, 32) pour un fluide sous pression, canal qui relie la pompe (10) à un système hydraulique,
    caractérisé en ce que
    l'un au moins des canaux (31, 32) est constitué dans au moins une pièce d'insertion (28, 29),
    l'une au moins des pièces d'insertion (28, 29) forme une liaison allant de bout en bout pour le fluide sous pression et
    l'une au moins des pièces d'insertion (28, 29) peut être insérée dans au moins un évidement (26, 27) qui est constitué dans l'élément de raccordement (11).
  2. Groupe de pompage hydraulique selon la revendication 1,
    caractérisé en ce que
    la pièce d'insertion (28, 29) est réalisée en métal.
  3. Groupe de pompage hydraulique selon la revendication 1 ou 2,
    caractérisé en ce que
    la pièce d'insertion (28, 29) est constituée en forme de tube.
  4. Groupe de pompage hydraulique selon la revendication 1 à 3,
    caractérisé en ce que
    la pièce d'insertion (28, 29) est rendue étanche par rapport à l'élément de raccordement (11) au moyen d'éléments d'étanchéité (33).
  5. Groupe de pompage hydraulique selon l'une des revendications 1 à 4,
    caractérisé en ce que
    l'élément de raccordement (11) est relié sur le côté (22), qui est opposé à la pompe (10), à un moteur d'entraínement.
  6. Groupe de pompage hydraulique selon l'une des revendications 1 à 4,
    caractérisé en ce que
    le canal est constitué par un alésage dans la pièce d'insertion (28, 29),
    le diamètre de l'alésage est adapté aux paramètres hydrauliques de la pompe (10), et
    le diamètre extérieur de la pièce d'insertion (28, 29) est en permanence identique.
EP95112496A 1994-10-04 1995-08-09 Groupe de pompage hydraulique Expired - Lifetime EP0705980B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4435494A DE4435494A1 (de) 1994-10-04 1994-10-04 Hydroaggregat
DE4435494 1994-10-04

Publications (2)

Publication Number Publication Date
EP0705980A1 EP0705980A1 (fr) 1996-04-10
EP0705980B1 true EP0705980B1 (fr) 2000-03-01

Family

ID=6529951

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95112496A Expired - Lifetime EP0705980B1 (fr) 1994-10-04 1995-08-09 Groupe de pompage hydraulique

Country Status (3)

Country Link
EP (1) EP0705980B1 (fr)
DE (2) DE4435494A1 (fr)
ES (1) ES2143567T3 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH423369A (de) * 1965-04-14 1966-10-31 Calotech Ets Schwingungsarme Verbindung
US4362480A (en) * 1980-04-01 1982-12-07 Mitsubishi Denki Kabushiki Kaisha Rotary roller vane pump made of specific materials
DE3144983A1 (de) * 1981-11-12 1983-05-19 Robert Bosch Gmbh, 7000 Stuttgart Elektromotorisch angetriebenes pumpaggregat
FR2586763B1 (fr) * 1985-08-27 1989-07-28 Cit Alcatel Ensemble moto-pompe a palettes sans fuites exterieures d'huile
DE4017192A1 (de) * 1990-05-29 1991-12-05 Leybold Ag Verfahren zur herstellung eines pumpenringes fuer eine zweistufige vakuumpumpe sowie mit einem derartigen pumpenring ausgeruestete vakuumpumpe
DE4304149C1 (de) * 1993-02-12 1994-09-08 Grundfos As Selbstansaugendes Motorpumpenaggregat

Also Published As

Publication number Publication date
EP0705980A1 (fr) 1996-04-10
DE4435494A1 (de) 1996-04-11
ES2143567T3 (es) 2000-05-16
DE59507885D1 (de) 2000-04-06

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