WO2006058801A1 - Pompe a membrane, et membrane de pompe a membrane - Google Patents

Pompe a membrane, et membrane de pompe a membrane Download PDF

Info

Publication number
WO2006058801A1
WO2006058801A1 PCT/EP2005/054620 EP2005054620W WO2006058801A1 WO 2006058801 A1 WO2006058801 A1 WO 2006058801A1 EP 2005054620 W EP2005054620 W EP 2005054620W WO 2006058801 A1 WO2006058801 A1 WO 2006058801A1
Authority
WO
WIPO (PCT)
Prior art keywords
membrane
pump
diaphragm
plunger pin
membrane body
Prior art date
Application number
PCT/EP2005/054620
Other languages
German (de)
English (en)
Inventor
Bodo Grebner
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 WO2006058801A1 publication Critical patent/WO2006058801A1/fr

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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/16—Selection of particular materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/14—Arrangements for the supply of substances, e.g. conduits
    • F01N2610/1433—Pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/2066—Selective catalytic reduction [SCR]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Definitions

  • the invention is based on a membrane pump and a membrane pump membrane according to the preambles of claims 1 and 7.
  • the medium does not come into contact with the drive units; the delivery chamber is separated from the unit space by the diaphragm.
  • the promotion is carried out by an up and down stroke of the acted upon by a plunger membrane.
  • this limits the achievable pressures of the membrane pump, while it tends to increase the urea output Pressures are desirable.
  • complex and robust designs are necessary, which are not easily represented with conventional diaphragm pumps.
  • a diaphragm pump has a membrane pump membrane with a metallic membrane body.
  • the membrane body is very robust.
  • the diaphragm pump can continue to operate at a significantly higher delivery pressure, in particular above 5 bar, and has an improved service life for its diaphragm pump diaphragm, which is significantly above the 10,000 hours usual with rubber diaphragms.
  • the membrane pump is inexpensive to produce and particularly suitable for use in urea-based Entstickungssystemen of motor vehicles.
  • the membrane body is formed of corrosion-resistant steel. This is favorable if aggressive media such as urea are to be conveyed with a correspondingly long service life. Preference is given to a chromium-nickel steel.
  • a plunger pin is connected to the membrane body for actuation of the membrane pump membrane, an admission for carrying out the media delivery can be carried out easily, wherein in particular the plunger bolt is connected to an eccentric.
  • the plunger bolt is welded to the membrane body.
  • the plunger bolt is by means of laser welding attached. This results in a durable connection with a long service life.
  • the membrane body has a concentric, corrugated structure, the service life can be further improved.
  • the beads cause a vibration behavior of the membrane pump membrane, which is well suited for continuous use.
  • the membrane body is formed of metal.
  • the membrane body is formed of corrosion-resistant steel.
  • a membrane pump membrane shows a significantly improved lifetime compared to conventional membranes made of rubber or fabric films.
  • such membrane pump membranes can be loaded with increased delivery pressures or back pressures.
  • the membrane body preferably has a concentric, wave-like structure.
  • vibration properties of the membrane body are advantageously influenced, in particular in a normal up and down movement in operation with respect to the central axis of the disk-shaped membrane body.
  • a curvature of the corrugations of the structure is designed so that forms in a normal periodic loading of the membrane body with driving force in the axial direction, a fatigue stress in the elastic range.
  • the membrane body is only subjected to elastic load Life-shortening, inelastic deformations avoided. It can - A -
  • the membrane body has a plunger bolt in its center, a connection to an eccentric drive in the use of the membrane pump membrane can be produced without much effort, as is usual in conventional diaphragm pumps.
  • the plunger pin is arranged in a cup-shaped, convex to the plunger bolt bulge of the membrane body. This arrangement provides a reliable diversion of dynamic forces in a conventional use of the diaphragm pump diaphragm.
  • the plunger bolt is fixedly connected to the membrane body, preferably the plunger bolt is welded to the membrane body.
  • FIG. 1 shows a section through a preferred membrane pump membrane with plunger bolts.
  • Figure 2 is a plan view of a preferred membrane body with concentric, besickter structure.
  • Fig. 4 shows schematically a preferred diaphragm pump. Description of the embodiment
  • FIG. 1 shows a section through a preferred membrane pump membrane 10 with a plunger pin 12, which is arranged in the center 16 of its membrane body 11 and extends in the axial direction from the surface of the disk-shaped membrane pump membrane 10.
  • the membrane pump membrane 10 physically separates a delivery space 23 for a medium and an aggregate space 24 of a membrane pump 20 with an eccentric drive, which is separated from the delivery space 23, as is roughly sketched schematically in FIG. Drive units or valves, etc. are not shown.
  • a promotion of the medium which is indicated by arrows at an inlet 21 and an outlet 22 of the delivery chamber 23 of the diaphragm pump 20, takes place by an up and down movement of the plunger pin 12 by an eccentric 13, as shown by the double arrow in the figure 3.
  • the membrane pump membrane 10 is thereby raised and lowered.
  • the eccentric drive which is not further developed, corresponds to a conventional eccentric drive of diaphragm pumps familiar to the person skilled in the art.
  • the membrane body 11 has a concentric corrugated structure 14, wherein a curvature of the corrugations 15 of the structure 14 is designed so that, when the membrane body 11 is driven periodically in the axial direction, the membrane body 11 is driven 17 forms a fatigue stress in the elastic region.
  • the edge 19 of the membrane body 11 is formed flat to allow easy attachment and sealing in a diaphragm pump housing.
  • the plunger pin 12 is arranged on a cup-shaped, to the plunger pin 12 towards convex bulge 18 of the membrane body 11.
  • the membrane 10 is preferably formed of a metallic membrane body 11, preferably of corrosion-resistant steel, more preferably of chromium-nickel steel.
  • FIG. 2 shows a plan view of a preferred membrane body 11, in which its concentric wavy-embossed structure 14 can be clearly seen.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Reciprocating Pumps (AREA)

Abstract

L'invention concerne une pompe à membrane comprenant un élément d'entraînement excentrique qui est conçu pour la membrane (10) de cette pompe à membrane, ainsi qu'une chambre de transport (23) qui est conçue pour une substance, et une chambre à agrégat (24) qui est séparée de la chambre de transport (23) par l'intermédiaire de la membrane (10) de la pompe à membrane. Cette pompe à membrane est caractérisée en ce que la membrane (10) comprend un corps de membrane métallique (11). La présente invention se rapporte en outre à une membrane (10) de pompe à membrane.
PCT/EP2005/054620 2004-11-30 2005-09-16 Pompe a membrane, et membrane de pompe a membrane WO2006058801A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004057688.2 2004-11-30
DE102004057688A DE102004057688A1 (de) 2004-11-30 2004-11-30 Membranpumpe und Membranpumpenmembran

Publications (1)

Publication Number Publication Date
WO2006058801A1 true WO2006058801A1 (fr) 2006-06-08

Family

ID=35427732

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2005/054620 WO2006058801A1 (fr) 2004-11-30 2005-09-16 Pompe a membrane, et membrane de pompe a membrane

Country Status (2)

Country Link
DE (1) DE102004057688A1 (fr)
WO (1) WO2006058801A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9084845B2 (en) 2011-11-02 2015-07-21 Smith & Nephew Plc Reduced pressure therapy apparatuses and methods of using same
US9427505B2 (en) 2012-05-15 2016-08-30 Smith & Nephew Plc Negative pressure wound therapy apparatus
US9901664B2 (en) 2012-03-20 2018-02-27 Smith & Nephew Plc Controlling operation of a reduced pressure therapy system based on dynamic duty cycle threshold determination
US9956121B2 (en) 2007-11-21 2018-05-01 Smith & Nephew Plc Wound dressing
US10307517B2 (en) 2010-09-20 2019-06-04 Smith & Nephew Plc Systems and methods for controlling operation of a reduced pressure therapy system
US10682446B2 (en) 2014-12-22 2020-06-16 Smith & Nephew Plc Dressing status detection for negative pressure wound therapy

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006044253B3 (de) * 2006-09-16 2008-03-27 Thomas Magnete Gmbh Membran und Pumpenkopf für eine hydraulisch angetriebene Membranpumpe
DE102009028027A1 (de) 2009-07-27 2011-02-03 Robert Bosch Gmbh Fluid-Förderpumpe
DE102010042944A1 (de) 2010-10-26 2012-04-26 Robert Bosch Gmbh Arbeitswandelement einer Fluidfördereinrichtung
DE102011089509A1 (de) 2011-12-22 2013-06-27 Robert Bosch Gmbh Fördereinrichtung und Dosieranordnung
DE102013211164A1 (de) 2013-06-14 2014-12-31 Robert Bosch Gmbh Magnetaktor für ein Förderaggregat
DE102015226463A1 (de) 2015-12-22 2017-06-22 Robert Bosch Gmbh Magnetaktor für ein Förderaggregat
CN108884822B (zh) * 2017-07-28 2020-01-31 深圳市大疆创新科技有限公司 隔膜泵
DE102018213997A1 (de) 2018-08-20 2020-02-20 Robert Bosch Gmbh Pumpenanordnung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB269263A (en) * 1926-01-20 1927-04-20 Reginald Luther Munday A new or improved diaphragm pump
US1927617A (en) * 1930-01-15 1933-09-19 Schmidt Rudolf Piston engine or piston pump
US3722373A (en) * 1969-06-23 1973-03-27 Sybron Corp Differential pressure responsive device of welded construction
EP1536137A1 (fr) * 2003-11-25 2005-06-01 Magneti Marelli Powertrain S.p.A. Pompe à carburant pour moteur à combustion interne

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB269263A (en) * 1926-01-20 1927-04-20 Reginald Luther Munday A new or improved diaphragm pump
US1927617A (en) * 1930-01-15 1933-09-19 Schmidt Rudolf Piston engine or piston pump
US3722373A (en) * 1969-06-23 1973-03-27 Sybron Corp Differential pressure responsive device of welded construction
EP1536137A1 (fr) * 2003-11-25 2005-06-01 Magneti Marelli Powertrain S.p.A. Pompe à carburant pour moteur à combustion interne

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10744041B2 (en) 2007-11-21 2020-08-18 Smith & Nephew Plc Wound dressing
US11351064B2 (en) 2007-11-21 2022-06-07 Smith & Nephew Plc Wound dressing
US11364151B2 (en) 2007-11-21 2022-06-21 Smith & Nephew Plc Wound dressing
US11179276B2 (en) 2007-11-21 2021-11-23 Smith & Nephew Plc Wound dressing
US11129751B2 (en) 2007-11-21 2021-09-28 Smith & Nephew Plc Wound dressing
US10016309B2 (en) 2007-11-21 2018-07-10 Smith & Nephew Plc Wound dressing
US9956121B2 (en) 2007-11-21 2018-05-01 Smith & Nephew Plc Wound dressing
US10231875B2 (en) 2007-11-21 2019-03-19 Smith & Nephew Plc Wound dressing
US10555839B2 (en) 2007-11-21 2020-02-11 Smith & Nephew Plc Wound dressing
US11027051B2 (en) 2010-09-20 2021-06-08 Smith & Nephew Plc Pressure control apparatus
US10307517B2 (en) 2010-09-20 2019-06-04 Smith & Nephew Plc Systems and methods for controlling operation of a reduced pressure therapy system
US11623039B2 (en) 2010-09-20 2023-04-11 Smith & Nephew Plc Systems and methods for controlling operation of a reduced pressure therapy system
US11534540B2 (en) 2010-09-20 2022-12-27 Smith & Nephew Plc Pressure control apparatus
US11648342B2 (en) 2011-11-02 2023-05-16 Smith & Nephew Plc Reduced pressure therapy apparatuses and methods of using same
US10143783B2 (en) 2011-11-02 2018-12-04 Smith & Nephew Plc Reduced pressure therapy apparatuses and methods of using same
US9084845B2 (en) 2011-11-02 2015-07-21 Smith & Nephew Plc Reduced pressure therapy apparatuses and methods of using same
US11253639B2 (en) 2011-11-02 2022-02-22 Smith & Nephew Plc Reduced pressure therapy apparatuses and methods of using same
US10881764B2 (en) 2012-03-20 2021-01-05 Smith & Nephew Plc Controlling operation of a reduced pressure therapy system based on dynamic duty cycle threshold determination
US9901664B2 (en) 2012-03-20 2018-02-27 Smith & Nephew Plc Controlling operation of a reduced pressure therapy system based on dynamic duty cycle threshold determination
US11730877B2 (en) 2012-03-20 2023-08-22 Smith & Nephew Plc Controlling operation of a reduced pressure therapy system based on dynamic duty cycle threshold determination
US9545465B2 (en) 2012-05-15 2017-01-17 Smith & Newphew Plc Negative pressure wound therapy apparatus
US10702418B2 (en) 2012-05-15 2020-07-07 Smith & Nephew Plc Negative pressure wound therapy apparatus
US9427505B2 (en) 2012-05-15 2016-08-30 Smith & Nephew Plc Negative pressure wound therapy apparatus
US10299964B2 (en) 2012-05-15 2019-05-28 Smith & Nephew Plc Negative pressure wound therapy apparatus
US10973965B2 (en) 2014-12-22 2021-04-13 Smith & Nephew Plc Systems and methods of calibrating operating parameters of negative pressure wound therapy apparatuses
US10682446B2 (en) 2014-12-22 2020-06-16 Smith & Nephew Plc Dressing status detection for negative pressure wound therapy
US10737002B2 (en) 2014-12-22 2020-08-11 Smith & Nephew Plc Pressure sampling systems and methods for negative pressure wound therapy
US11654228B2 (en) 2014-12-22 2023-05-23 Smith & Nephew Plc Status indication for negative pressure wound therapy
US10780202B2 (en) 2014-12-22 2020-09-22 Smith & Nephew Plc Noise reduction for negative pressure wound therapy apparatuses

Also Published As

Publication number Publication date
DE102004057688A1 (de) 2006-06-01

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