EP2809951B1 - Elektromotorisch antreibbares pumpenaggregat - Google Patents

Elektromotorisch antreibbares pumpenaggregat Download PDF

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Publication number
EP2809951B1
EP2809951B1 EP13703013.6A EP13703013A EP2809951B1 EP 2809951 B1 EP2809951 B1 EP 2809951B1 EP 13703013 A EP13703013 A EP 13703013A EP 2809951 B1 EP2809951 B1 EP 2809951B1
Authority
EP
European Patent Office
Prior art keywords
cover
valve
working chamber
pump unit
electric motor
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.)
Active
Application number
EP13703013.6A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2809951A1 (de
Inventor
Stephan Krebs
Jens Bacher
Heinrich Kreh
Lazar Milisic
Michael JÜRGING
Marcel Niepenberg
Jose Gonzalez
Karlheinz Seitz
Hans-Michael Koppel
Falk Petzold
Rolf Fellinger
Stefan Imhof
Thomas Oeffner
Paul Wiebe
Manfred Rüffer
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.)
Continental Teves AG and Co OHG
Original Assignee
Continental Teves AG and Co OHG
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 Continental Teves AG and Co OHG filed Critical Continental Teves AG and Co OHG
Publication of EP2809951A1 publication Critical patent/EP2809951A1/de
Application granted granted Critical
Publication of EP2809951B1 publication Critical patent/EP2809951B1/de
Active 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
    • F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
    • F04B45/04—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms
    • F04B45/047—Pumps having electric drive
    • 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
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/0027—Pulsation and noise damping means
    • F04B39/0044—Pulsation and noise damping means with vibration damping supports
    • 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
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/0027—Pulsation and noise damping means
    • F04B39/0055—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes
    • 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
    • F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
    • F04B45/04—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms
    • F04B45/043—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms two or more plate-like pumping flexible members in parallel
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/001—Noise damping
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/102—Disc valves
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
    • 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
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
    • F04B9/04—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
    • F04B9/042—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms the means being cams
    • 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
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
    • F04B9/04—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
    • F04B9/045—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms the means being eccentrics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2210/00—Working fluid
    • F05B2210/10—Kind or type
    • F05B2210/12—Kind or type gaseous, i.e. compressible
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/40—Transmission of power
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/96—Preventing, counteracting or reducing vibration or noise

Definitions

  • the invention relates to an electric motor drivable pump unit according to the preamble of claim 1.
  • brake booster To increase the braking force in hydraulic brake systems brake booster are used, with a pneumatic or a vacuum brake booster is a very common, reliable and cost-effective solution.
  • negative pressure is required.
  • the required negative pressure can be ensured by a connection of the vacuum chamber with a suction pipe of a naturally aspirated internal combustion engine.
  • the vacuum supply can be provided insufficient or not at all by the vehicle drive.
  • separate vacuum pumps are used which suck in residual air from the vacuum chamber of the brake booster and discharge it into the atmosphere.
  • Autonomously driven pump sets may be positioned in a vehicle due to space requirements, for example, at a location at risk of water hammer and require contamination protection to prevent internal components from corrosion or premature wear due to contamination with foreign media.
  • the invention is therefore based on the object to design a cost-effective pump unit with an improved noise emission level, an optimized manufacturing and assembly costs and increased reliability.
  • the three formations may be provided on the lower Unterdeckelflansch the work space cover.
  • the three formations may be formed on a Oberdeckelflansch or on an upper Unterdeckelflansch or simultaneously on both flanges, so that between the upper lid and the lower lid a spatially stable three-point support is realized.
  • This can be realized between the working space cover and the pump housing but also within a working space cover a spatially stable geometrically determined three-point support.
  • This creates a vibrationally favorable contact image, sound excitation and sound radiation are reduced.
  • Surface pressure in the sealing area between the working space cover and the pump housing and within the working space cover is distributed more evenly, whereby the Number of necessary attachment points between the work cover and the pump housing and thus also manufacturing costs and assembly costs can be reduced.
  • the working space cover can be separated from the pump housing and / or the upper cover from the lower cover by at least one elastic decoupling element for reducing a vibration transmission.
  • a regular sealing element for example, a thin elastomeric or polymeric film can be arranged in a contact area of the formations and the counterpart component.
  • the sound transmission in the contact areas is further reduced, acoustic decoupling improved, sound radiation behavior defused and mitigated.
  • the described decoupling element can be connected to at least one or more sealing elements for a single molded seal, whereby a simple assembly process favors and assembly errors are avoided.
  • the lower lid can be made particularly simple punching or forming, which can significantly reduce unit costs by cheaper tools and raw material and higher cycle time.
  • the insert can be easily and inexpensively injected from plastic and the assembled pump unit sometimes for support serve a valve disc or valve plate.
  • baffles for opening the valve plate when opening the valve is made possible cost.
  • the insert can have at least one baffle surface rounded in the valve opening direction for striking the valve plate during valve opening.
  • the insert may be equipped with means for locking the insert, which engage in locking openings provided for this purpose.
  • locking holes may be provided in the lower lid, whereby the production of the lower lid is not complicated and still allows a simple and effective locking of the insert.
  • a valve support surface for supporting a valve plate in a closed valve state may have at least one recess for reducing a contact area between the valve plate and the valve support surface.
  • the recess described above both on the lower cover and on the upper cover.
  • the Fig. 1 shows a known pump unit 1.
  • the pump unit is designed as a double diaphragm pump with two opposite displacement elements 4.
  • the displacement elements 4 each have an elastic membrane element 46, which are each clamped airtight between a pump housing 3 and a working space cover 2 and thereby delimit a working space 5.
  • Each working space is associated with an inlet 6 and an outlet valve 7 (not shown) as well as with inlet and outlet channels 9 pneumatically connected to the valves.
  • the inlet channel 8 is pneumatically connected to a connecting line 54 which is connected to a pneumatic brake booster, not shown. By this connection, air is sucked from a vacuum chamber of the brake booster in the working chamber 5.
  • the outlet channel 9 is pneumatically connected to a housing interior 53 of the pump unit. From the housing interior 53, the air is discharged via an air outlet unit 34 into the environment.
  • the air outlet unit 34 is subdivided by an intermediate bottom 35 with passage openings 36 and comprises further construction elements such as a check valve 38, which is arranged between an air outlet unit floor 66 and the intermediate floor 36 and prevents air from entering the housing interior 53.
  • the displacement elements 4 are moved in opposite directions by means of a crank drive 52, so that thereby a volume of the working chamber 5 is changed periodically and thus takes place in interaction with the inlet and an outlet valves, an air transfer from a connected brake booster via the working chamber 5 in the vicinity of the pump unit ,
  • the crank mechanism 52 is set in motion by an electronically controllable drive unit 42.
  • the working space cover 2 comprises a larger upper cover 12 and a smaller lower cover 13, the upper cover 12 having an inlet channel 8 and an outlet channel 9 integrated.
  • the intake passage 8 is associated with an intake valve 6 and the exhaust passage 9 with an exhaust valve 7.
  • the two valves are in each case in the form of check valves with elastic valve disks 39 ', 39 "which sealingly abut each other in a closed valve position on respectively associated valve bearing surfaces 22, 22.'
  • a combination seal 55 ensures an airtight separation between the upper cover 12 and the lower cover 13 in the area of one Oberdeckelflansches 14 and an upper Unterdeckelflansches 15 and between the inlet channel 8 and the outlet channel.
  • a baffle is needed.
  • this is realized in the inlet valve by an impact element 56 which is connected to the top cover 12 and clamps the valve disk 39 " Figure 3 shown embodiment of a lower cover 13, this function is achieved by a separate insert 20.
  • the insert 20 has two locking tabs 57, which is inserted into the designated locking holes 21 in the lower cover 13 and locked so against rotation.
  • both the lower lid and the upper lid can be made much easier to produce, valve discs replaced by simple, associated with the combination seal 55 valve plate 19 and the baffle 58 are designed such that a sound generation when bouncing the valve disc or valve plate can be reduced.
  • FIG. 4 a further embodiment according to the invention, according to which one, the outlet valve 7 associated insert 20 'is inserted into a recess provided in the upper cover 12 and the valve plate 55 connected to the valve plate 19 a rounded baffle 58' for striking when opening the valve.
  • the baffle 58 ' is acted upon by the valve plate 19 as soon as the exhaust valve opens and a flow from the working chamber 5 in the outlet channel 9 builds up.
  • the insert 20 ' with further means for locking in the upper cover 12, for example, in the manner of Figure 3 , to provide.
  • the valve plate 19 is in the valve closed state on the valve support surface 22.
  • This has a circumferential recess 23.
  • the contact area between the valve support surface 22 and the valve plate 19 is reduced, an adhesion or tendency to stick of the elastic material of the valve plate 19 on the valve support surface 22 is thereby effectively reduced.
  • the air flowing in from the working chamber 5 through the air channels 24 is distributed in the recess 23 and acts more uniformly and on a larger effective surface against the valve plate 19.
  • FIG. 5 another embodiment of a non-inventive working space cover 2 is shown in an exploded view.
  • the upper cover 12 is oblong shaped in distinction to the embodiments described above, and is substantially reduced in terms of design to a tunnel-like enclosure of the inlet channel 8 and the outlet channel 9 and Unlike the embodiments described above, the length of the outer contour 25 of the upper cover 12 is thereby considerably shorter than the length of the outer contour (26) of the lower cover 13.
  • the combination seal 55 in the illustrated embodiment is very simple and space-saving designed and has integrated the valve plates 19 and 19 'on.
  • the lower cover 13 receives the combination seal and is provided with positioning pins 60, which serve mainly for positioning the upper cover 12 on the lower cover 13 and may be provided in addition to the acquisition of longitudinal and transverse forces between the two mentioned cover parts by being in the corresponding on the upper cover 12 integrally formed pin guides 61 engage.
  • the positioning pins 60 can be used by the deformation after assembly of the upper cover 12 for the final fixation of the upper lid 12 on the lower lid 13.
  • the combination seal 55 on integrated O-rings 62 which engage around the positioning pins 60 in the assembled state.
  • the O-rings 62 may sometimes stiffen the combination seal 55 as a whole and stabilize it against deformation, thus contributing overall to a reliable and easy assembly operation.
  • FIG. 6 shows details of an embodiment of the pump unit according to the invention.
  • a spatial oblique view of a housing flange 10 of the pump housing 3 is shown.
  • the surface of the housing flange 10 has three circumferentially substantially at an equal distance distributed to each other Formations 16 on.
  • the formations 16 prevent a large-area concerns of the (not shown) working space cover 2 on the pump housing 3.
  • a contact surface between the pump housing 3 and the (not shown) working space cover 2 is reduced and limited in the assembled state characterized on the three opposite the surface of the housing flange 10th small, point-like contact areas of the formations 16. Without the inserted membrane element 46 (see Fig.1 . 6E ) would remain at all other locations between the working space cover 2 and the pump housing 3, a defined air gap. There is thus a three-point support between the working space cover 2 and the pump housing 3.
  • noise is generated both in the working space cover 2 and in the pump housing 3, or sound waves, which are then radiated through all existing surfaces.
  • Noises on and in the working space cover 2 arise mainly due to air turbulence on the valves 6,7 and 8,9 in the air ducts and are usually high-frequency than noise on and in the pump housing 3, which mainly the drive unit 42 and the mechanical crank mechanism 52 as a source to have.
  • the sound waves are transmitted and superimposed multiple times, which may, for example, undesired resonances arise.
  • the decoupling element 17 is designed as an elastomeric film and is connected to two sealing elements 18 to form a single molded seal. The two sealing elements 18 serve to seal the inlet channel and the outlet channel at their separation point between the working space cover 2 and the pump housing 3.
  • such a decoupling element can also be dispensed with.
  • a three-point support represents a spatially stable and mathematically determined way of supporting a body, since a center of gravity of the body is located within a virtual triangle whose ends are the support points.
  • more than three vectors are always linearly dependent in a three-dimensional space, it would be more expensive to produce a simultaneous and uniform contact of all contact points with more than three support points.
  • it is possible within the invention also provide more than three formations to restrict, for example, material stress by high surface pressure in the contact areas and still reduce sound transmission and sound radiation effects.
  • Figure 6b shows that in the 6a shown pump housing 3 in plan view, 6C a section AA through the pump housing.
  • Fig.6d shows the view X and the 6E the cut BB off of the Figure 6b , but in an assembled pump unit. 1
  • Figure 6b illustrates that the formations 16 are arranged in a substantially equal distance from each other outer edge of the housing flange 10 and provide a, relative to the total surface of the housing flange 10 very small contact surface for supporting the working space cover. It can be seen from the view c that the formations 16 project only slightly beyond the surface of the housing flange 10.
  • the Fig.6d shows a section of a side view of an assembled pump unit 1.
  • the decoupling element 17 is arranged, which is compressed in the region of the molding 16.
  • the working space cover 2 rests with the lower Unterdeckelflansch 11 on the pump housing 3 and that the sealing function of the working chamber 5 takes place against the environment of the pump unit mainly by the elastic membrane element 46, which at its bead-like reinforced and stiffened edge between the lower lid 13 and the pump housing 3 sealingly pressed and clamped.
  • the decoupling element 17 primarily serves for a sound decoupling at a contact surface between the lower cover 13 and the shaping 16.
  • the housing flange 10 extends below the aforementioned contact surface at a distance from the lower cover 13.
  • FIG. 7 is another inventive embodiment of an upper and 12 lower cover 13 of a working space cover 2 shown.
  • the upper lid 12 touch the lower lid 13 over the
  • the upper lid however, three on the Oberdeckelflansch 14 largely uniformly distributed arranged formations 16, which according to the principle already described above enable a three-point support between the upper cover 12 and the lower cover 13 and thereby bring about a far-reaching acoustic decoupling.
  • the formations on the lower Unterdeckelflansch 11 exclusively or in addition to the formations 16 on the housing flange 14 (FIG. Figure 6 ).
  • FIG. 8 is a non-inventive embodiment of the in Fig.1 shown intermediate bottom 35 shown.
  • the intermediate bottom 35 is made of a flexible material and has an integrally formed on the intermediate bottom 35 also flexible tab 37.
  • the tab 37 is designed in such a way that, in its relaxed starting position, it conforms to the surface of the intermediate bottom 35 in a planar manner and covers or closes the passage openings 36 in the direction of the housing interior 53 and thus in the direction of the outlet channel 9.
  • a pressure difference is built up on both sides of the intermediate bottom 35, which forces the tab 37 to lift off the surface of the intermediate bottom 35 and thus release the through-openings 36.
  • the tab 37 is resiliently biased.
  • the tab 37 may for example not be provided integrally formed on the intermediate bottom 35, but rotatably mounted on this and pressed with an elastic element against the surface of the intermediate bottom.
  • Fig. 9 shows a non-inventive embodiment of a check valve 38 which is disposed between the intermediate bottom 35 and the Heilauslassiserboden 66 and ensures that the ejected from the working chamber 5 air from the housing interior 53 through the Heilauslassiser 34 in the vicinity of the pump unit 1, but not back into it reach can.
  • the intermediate bottom 35 has an integrally formed sleeve 63 which engages around a conical mandrel 64 arranged on the air outlet unit bottom 66 in the middle of the valve seat 65 and at the same time presses the elastic valve disk 39 against the valve seat 65.
  • the valve disk 39 is additionally acted upon by a resilient element 40 supported against the intermediate bottom 35 in the form of a spiral spring.
  • a rigid disk element 41 is interposed between the elastic element 40 and the valve disk 39.
  • valve disc 39 between the valve seat 65 and the intermediate bottom 35 also significantly improves the protective effect of the check valve against water intrusion into the housing interior 53 from the environment of the pump unit 1.
  • Fig. 10 shows the mounted in a base holder 28 or suspended pump unit 1.
  • the base holder 28 is used to secure the body of the pump assembly 1.
  • elastic damping elements 27 are interposed.
  • the pump unit 1 has a limited freedom of movement in and around all spatial directions.
  • a known (view a) and another non-inventive embodiment (view b) of the base holder 28 are shown in a three-dimensional representation.
  • the base holder 28 support elements 29,29 'on.
  • the support elements 29 'of the known embodiment are designed as separate components, which are used in a separate joining operation in the openings provided in the base holder.
  • the embodiment according to the invention Fig. 11b By contrast, 28 has integrated support elements 29 in the base holder, which are produced by forming the basic holder blank, for example by deep drawing or pressing. If desired, such designed support members 29 may be provided, for example with a rolled or cut internal thread to serve, for example, as a fixing point for plug, cable holder or other peripheral elements or aggregates.
  • formed support elements produced by forming technology are conceivable-for example by punching and bending, or upsetting.
  • a damping element 27 made of an elastic material, preferably an EPDM or silicone material in a spatial (view a, obliquely from above and obliquely from below) and a sectional view (view b) shown. It has an outer jacket 31 and an inner jacket 30, wherein the inner jacket has a tubular conically shaped rotationally symmetrical inner contour, which with above described supporting elements 29,29 'of the base holder or another fastener corresponds. On the outer casing 31, a circumferential groove 67 is mounted, which is suitable for fixing the damping element 27 in a bore on a suitable holding element.
  • the inner jacket 30 is connected to the outer jacket 31 via a circumferential obliquely arranged to the rotation axis R collar 32. Furthermore, the inner shell 30 is connected to the outer shell 31 via a plurality of cantilevered on one side of the collar, radially radially from the inner shell 30 to the outer shell 31 ver convincedde webs 33 connected.
  • soft initially weak
  • hard hard
  • both sealing and vibration decoupling must be performed.
  • the drive unit 42 has two elastic, largely annular running and concentric with each other arranged intermediate elements 43,44 provided.
  • the inner intermediate element 43 has a round cross section and serves above all to seal the interface.
  • the inner intermediate element 43 is connected to the outer intermediate element 44 via four connecting webs 45. Another number of connecting webs 45 is also possible.
  • the cross-section of the outer intermediate member 44 and the connecting webs 45 is preferably cuboid shaped and designed such that the outer intermediate member 44 and optionally also the connecting webs 45 are compressed in a pump unit 3 assembled together between the pump housing 3 and the drive unit 42.
  • a pump unit 3 assembled together between the pump housing 3 and the drive unit 42.
  • a defined air gap between the pump housing 3 and the drive unit 42 at least in the area around the outer intermediate element 44.
  • the Fig. 14 shows a non-inventive embodiment of a displacement element 4.
  • the displacement element 4 comprises an elastic membrane element 46 and a connecting rod member 47.
  • the membrane element 46 is formed on the connecting rod member 47 by molding and thereby irreversibly connected.
  • the membrane element 46 has a material reinforcement in the overmolded area and the connecting rod element 47 has a shaft head 50 with an opening 51 in the overmolded area in order to form an effective armature and a detachment of the membrane element 46 from the connecting rod element 47 in FIG Pump operation against to act. Because of the opening 47, which is filled after the encapsulation by the material of the membrane element 46, no destructive release of both parts is possible from each other.
  • There are also other designs of the opening 51 conceivable, as well as the provision of multiple openings in the shaft head 50th

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
EP13703013.6A 2012-02-01 2013-02-01 Elektromotorisch antreibbares pumpenaggregat Active EP2809951B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012201407 2012-02-01
PCT/EP2013/052088 WO2013113902A1 (de) 2012-02-01 2013-02-01 Elektromotorisch antreibbares pumpenaggregat

Publications (2)

Publication Number Publication Date
EP2809951A1 EP2809951A1 (de) 2014-12-10
EP2809951B1 true EP2809951B1 (de) 2017-06-28

Family

ID=47678782

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13703013.6A Active EP2809951B1 (de) 2012-02-01 2013-02-01 Elektromotorisch antreibbares pumpenaggregat

Country Status (9)

Country Link
US (1) US9828981B2 (ko)
EP (1) EP2809951B1 (ko)
JP (1) JP6143795B2 (ko)
KR (1) KR102061371B1 (ko)
CN (1) CN104093980B (ko)
BR (1) BR112014018915B1 (ko)
DE (1) DE102013201718A1 (ko)
MX (1) MX353759B (ko)
WO (1) WO2013113902A1 (ko)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013222245A1 (de) * 2013-10-31 2015-04-30 Continental Teves Ag & Co. Ohg Vakuumpumpe mit einem Deckel
EP2921705B1 (en) * 2014-03-20 2018-09-05 Annovi Reverberi S.p.A. A diaphragm-plate group for diaphragm pumps
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JP6143795B2 (ja) 2017-06-07
EP2809951A1 (de) 2014-12-10
CN104093980A (zh) 2014-10-08
DE102013201718A1 (de) 2013-08-01
KR102061371B1 (ko) 2019-12-31
WO2013113902A1 (de) 2013-08-08
CN104093980B (zh) 2016-12-21
US9828981B2 (en) 2017-11-28
MX2014009369A (es) 2014-09-12
BR112014018915A2 (ko) 2017-06-20
JP2015505593A (ja) 2015-02-23
US20150030476A1 (en) 2015-01-29
BR112014018915B1 (pt) 2021-11-03
MX353759B (es) 2018-01-26
BR112014018915A8 (pt) 2017-07-11
KR20140122251A (ko) 2014-10-17

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