EP1611354A1 - Machine a piston elevateur - Google Patents

Machine a piston elevateur

Info

Publication number
EP1611354A1
EP1611354A1 EP04710821A EP04710821A EP1611354A1 EP 1611354 A1 EP1611354 A1 EP 1611354A1 EP 04710821 A EP04710821 A EP 04710821A EP 04710821 A EP04710821 A EP 04710821A EP 1611354 A1 EP1611354 A1 EP 1611354A1
Authority
EP
European Patent Office
Prior art keywords
membrane
reciprocating piston
diaphragm
working
cross
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Withdrawn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
EP04710821A
Other languages
German (de)
English (en)
Inventor
Erich Becker
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.)
KNF Neuberger GmbH
Original Assignee
KNF Neuberger 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 KNF Neuberger GmbH filed Critical KNF Neuberger GmbH
Publication of EP1611354A1 publication Critical patent/EP1611354A1/fr
Withdrawn legal-status Critical Current

Links

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
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/0009—Special features
    • F04B43/0054—Special features particularities of the flexible members

Definitions

  • the invention relates to a reciprocating piston machine with at least one working diaphragm and / or at least one additional diaphragm made of elastomeric material and with an oscillating lifting drive, which engages a central area of the membrane, with a peripheral edge area clamped in the reciprocating machine between the central area of the diaphragm and the peripheral area clamped in the reciprocating machine Pump movements deforming membrane area is provided.
  • a reciprocating piston machine of the type mentioned at the outset is known, which is designed as a diaphragm pump.
  • the diaphragm pump known from DE 198 34 468 C1 has a working diaphragm, which serves as a reciprocating piston and is made of elastomeric material and is clamped with its peripheral edge region in the pump housing.
  • An oscillating linear actuator acts on the central area of the working diaphragm, causing the working diaphragm to pump.
  • a rigid mandrel is molded into the central area of the working diaphragm, which is connected to a connecting rod of the pump drive.
  • a likewise rigid support element is elastically connected to the mandrel, which stiffens the working membrane and limits the membrane or flex area deforming during the pumping movements to a comparatively small ring zone of the membrane.
  • Another proposal for solving the task outlined above provides that the membrane cross-section of the working and / or additional membrane in its deformable membrane area is dimensioned such that approximately the same stresses or elastic deformations occur in the near-surface zones of the deformable membrane area during the pumping movements.
  • An additional, also independently worthy of protection, proposal to solve the above-mentioned problem also provides that the working and / or additional membrane has at least two cantilever-shaped ring zones in its deformable membrane area, which in a cross-sectional narrowing of the Membrane merge into each other, and that the membrane cross-section in the ring zones widens from the cross-sectional constriction.
  • the working and / or additional membrane of the reciprocating piston machine according to the invention is dimensioned in its deformable membrane area such that during pumping movements in the zones near the surface of the membrane area deforming during pumping movements set approximately the same tensions or elastic deformations. Since partial stress peaks in the membrane area near the surface are avoided in the working and / or additional membrane of the reciprocating piston machine according to the invention, the geometric deformation required by the lifting movement of the working and / or additional membrane is not represented by two ring zones serving as hinges, but by two flowing curves, the curves of which Unification point, depending on the stroke position, may be located at a different point on the radial between the central region and the circumferential region clamped in the reciprocating piston machine.
  • the reciprocating machine according to the invention is distinguished by the long-lasting and low-noise mode of operation of its working and / or additional membranes.
  • the membrane cross section in the ring zones widens linearly at least in some areas.
  • a particularly advantageous embodiment according to the invention consists in that the cross-sectional constriction is arranged in the range from 0.6 to 0.8 of the diameter of the deformable membrane area.
  • the reciprocating piston machine is designed as a diaphragm pump, the high-speed working and / or additional diaphragm of which is regularly exposed to a particular load.
  • the working diaphragm of such a diaphragm pump can be designed as a shape or as a flat diaphragm. While a molded part connected to the connecting rod of the linear actuator is molded into the elastomeric material of the membrane in order to be able to adapt the upper side of the diaphragm facing the pump chamber to the cross-section of the pump chamber in such a way that the molded membrane completely fills the pump chamber at top dead center Flat diaphragm clamped in its central area between the upper end of the connecting rod and, on the upper side of the diaphragm facing the pump chamber, a thrust washer.
  • Fig. 1 shows a diaphragm pump in a partial longitudinal section in the region of its pump head having a working diaphragm
  • FIG. 2 shows the diaphragm pump from FIG. 1 in the detailed view indicated by dash-dotted lines in FIG. 1.
  • Fig. 1 a serving as a piston working diaphragm 1 of a piston pump designed as a diaphragm pump is shown in a partial cross section.
  • the working membrane 1 consists of an elastomeric material, into which a molded part 2 is molded. While the molded part 2, which forms the central region 3 of the diaphragm 1, is connected to an oscillating connecting rod 4 of a lifting drive (not shown further here), the peripheral edge region 5 of the diaphragm 1 is clamped in the pump head 6 of the reciprocating piston machine.
  • a membrane or flexing region M is provided which deforms during the oscillating pumping movements.
  • the membrane cross section of the working membrane 1 in its deformable membrane area M is dimensioned such that during the pumping movements in the surface near zones of the deformable membrane area M approximately the same stresses or elastic deformations arise.
  • the geometric deformation required by the lifting movement is not represented by two hinge ring zones, as is known in the case of previously known working or additional diaphragms, but by two curves flowing into one another, the joining point of which, depending on the lifting position, per se another location of the radial between the membrane center 3 and the clamping point 5 may be.
  • These curves result from the fact that the thickness of the elastomer used for the membrane 1 is dimensioned at every point of the membrane 1 in such a way that these two flowing curves come about when the membrane is deformed by the stroke.
  • the working membrane 1 has two cantilever-shaped ring zones 7, 8 , which merge into one another in the outer peripheral region of the movable membrane region M.
  • These cantilever-shaped ring zones 7, 8 are designed and dimensioned such that in the starting position of the working membrane 1 in each ring zone 7, 8 the stress permitted for the ring zones 7, 8 occurs evenly under the intended load.
  • the cantilever-shaped ring zones 7, 8 are characterized in that the membrane cross-section in these ring zones 7, 8 widens from the cross-sectional constriction 9 outwards (ring zone 8) or inwards (ring zone 7).
  • ring zone 8 the membrane cross section of the working membrane 1 in these ring zones 7, 8 is expanded linearly at least in some areas.
  • the cross-sectional constriction 9 is arranged in the range from 0.6 to 0.8 of the diameter of the deformable membrane region M and forms the intersection of the extensions of the ring-zone undersides defined by the ring zones 7, 8, which is approximately in the thinnest point of the cross-sectional constriction 9.
  • the diaphragm pump shown here is distinguished by the long-lasting and low-noise mode of operation of its working diaphragm 1.

Landscapes

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

Abstract

Machine à piston élévateur, possédant au moins une membrane (1) en matière élastomère ainsi qu'un dispositif d'entraînement de levage oscillant qui vient en contact avec une zone centrale (3) de la membrane (1), ladite membrane possédant une zone (M), située entre sa zone centrale (3) et sa zone de bordure périphérique (5) retenue par serrage dans la machine à piston élévateur, qui se déforme pendant les mouvements de pompage oscillants. La machine à piston élévateur selon la présente invention est caractérisée en ce que la membrane de travail et / ou supplémentaire (1) possède, dans sa zone déformable, au moins deux zones annulaires (7, 8) en porte-à-faux qui se rencontrent pour former un rétrécissement (9) de la section transversale de la membrane (1) et en ce que la section transversale de la membrane dans les zones annulaires (7, 8) s'élargit, au niveau de chaque zone, à partir du rétrécissement (9) de la section transversale. La membrane de la machine à piston élévateur selon la présente invention se caractérise par une longue durée de vie et un fonctionnement à faible bruit.
EP04710821A 2003-03-22 2004-02-13 Machine a piston elevateur Withdrawn EP1611354A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10312898A DE10312898A1 (de) 2003-03-22 2003-03-22 Hubkolbenmaschine
PCT/EP2004/001390 WO2004083638A1 (fr) 2003-03-22 2004-02-13 Machine a piston elevateur

Publications (1)

Publication Number Publication Date
EP1611354A1 true EP1611354A1 (fr) 2006-01-04

Family

ID=32946074

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04710821A Withdrawn EP1611354A1 (fr) 2003-03-22 2004-02-13 Machine a piston elevateur

Country Status (4)

Country Link
US (1) US20060201324A1 (fr)
EP (1) EP1611354A1 (fr)
DE (1) DE10312898A1 (fr)
WO (1) WO2004083638A1 (fr)

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2904068A (en) * 1956-05-14 1959-09-15 Weatherhead Co Appliance regulator
US4231287A (en) * 1978-05-01 1980-11-04 Physics International Company Spring diaphragm
US4237775A (en) * 1978-08-21 1980-12-09 Gould Inc. Diaphragm for pressure sensors
DE3018687C2 (de) * 1980-05-16 1986-10-30 J. Wagner Gmbh, 7990 Friedrichshafen Membran für Hochdruckförderpumpen, Kompressoren oder dgl.
DE3928949A1 (de) * 1989-08-31 1991-03-14 Wagner Gmbh J Membranpumpe
CA2131449C (fr) * 1992-03-05 2003-10-28 Joseph Luiz Santa Pompe, robinet de commande et diaphragme
DE9403103U1 (de) * 1994-02-24 1994-04-14 ASF, Gesellschaft für elektrotechnische Geräte mbH, 82178 Puchheim Membrane für eine Membranpumpe zum Fördern eines brennbaren Fluids
DE19514316C1 (de) * 1995-04-18 1996-08-22 Wagner Gmbh J Membranpumpvorrichtung
DE19834468C1 (de) * 1998-07-30 2000-02-24 Asf Thomas Ind Gmbh Membrane für eine Membranpumpe
US6123320A (en) * 1998-10-09 2000-09-26 Swagelok Co. Sanitary diaphragm valve
US6276907B1 (en) * 1999-08-12 2001-08-21 Wagner Spray Tech Corporation Hydraulically driven diaphragm pump
JP3462448B2 (ja) * 2000-05-25 2003-11-05 株式会社タクミナ ダイヤフラムおよび往復動ポンプ

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004083638A1 *

Also Published As

Publication number Publication date
US20060201324A1 (en) 2006-09-14
DE10312898A1 (de) 2004-10-07
WO2004083638A1 (fr) 2004-09-30

Similar Documents

Publication Publication Date Title
DE4007932C2 (fr)
DE4328559C2 (de) Membranpumpe mit wenigstens zwei Membranen
EP0733802B1 (fr) Pompe à membrane façonnée
EP1153218B1 (fr) Pompe a membrane
EP0910745B1 (fr) Membrane pour une pompe a membrane
DE19938249C2 (de) Axial beweglicher Schaltring innerhalb einer Nut
DE2842611A1 (de) Auslassventileinrichtung eines kompressors
DE2305826A1 (de) Dichtungsringanordnung
DE10039210A1 (de) Radialkolbenpumpe mit zweiteiligem Federträger
EP2397731A2 (fr) Soupape à double siège et joint d'une soupape à double siège
EP1525399B1 (fr) Pompe a diaphragme
DE2421487A1 (de) Membranpumpe
EP1611354A1 (fr) Machine a piston elevateur
EP0347547B1 (fr) Segment de piston ovale
DE3212476C1 (de) Wellendichtring
DE10235445A1 (de) Mit einer Dichtung versehenes Einspritzaggregat für eine Brennkraftmaschine
WO1998022713A1 (fr) Pompe a membrane
DE102020126241A1 (de) Membrananordnung
DE2420483C2 (de) Dichtung für bewegliche Teile, insbesondere Teile von Verteilungsschiebern
DE102021212442B3 (de) Verfahren zur Herstellung eines Dichtrings
DE2742139B1 (de) Membranpumpe
DE3246782C2 (fr)
DE29620094U1 (de) Membranpumpe
DE4236682A1 (de) Hydraulische Hochdruckpumpe mit Überströmmanschette
EP1141553A1 (fr) Joint pour demultiplicateur de pression hydropneumatique

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20051020

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

DAX Request for extension of the european patent (deleted)
RBV Designated contracting states (corrected)

Designated state(s): DE FR GB

17Q First examination report despatched

Effective date: 20080131

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20080611