EP2038553B1 - Zylinder-kolbenanordnung für eine fluidpumpe oder einen fluidmotor - Google Patents

Zylinder-kolbenanordnung für eine fluidpumpe oder einen fluidmotor Download PDF

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Publication number
EP2038553B1
EP2038553B1 EP07804595.2A EP07804595A EP2038553B1 EP 2038553 B1 EP2038553 B1 EP 2038553B1 EP 07804595 A EP07804595 A EP 07804595A EP 2038553 B1 EP2038553 B1 EP 2038553B1
Authority
EP
European Patent Office
Prior art keywords
dead space
cylinder
piston arrangement
displacer
tk2a
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
EP07804595.2A
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German (de)
English (en)
French (fr)
Other versions
EP2038553A2 (de
Inventor
Bernhard Frey
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Individual
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Publication of EP2038553A2 publication Critical patent/EP2038553A2/de
Application granted granted 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
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/08—Machines, pumps, or pumping installations having flexible working members having tubular flexible members
    • F04B43/084—Machines, pumps, or pumping installations having flexible working members having tubular flexible members the tubular member being deformed by stretching or distortion
    • 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
    • F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04B15/02—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
    • 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
    • F04B53/02—Packing the free space between cylinders and pistons
    • 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
    • F04B53/1002—Ball valves
    • F04B53/1007—Ball valves having means for guiding the closure member
    • 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
    • F04B53/1002—Ball valves
    • F04B53/1017—Semi-spherical ball 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
    • F04B53/1087—Valve seats

Definitions

  • the invention relates to a cylinder-piston arrangement according to the preamble of claim 1.
  • Cylinder-piston arrangements of this type are represented on the relevant market, in particular as high-pressure water pumps.
  • An essential area of application for pumps of this type is the pressure delivery of water loaded with foreign substances, in particular also abrasive granules. Above all, high-speed machines with high working pressures in the range of a few hundred to a thousand bar are required. The energetic as well as the volumetric efficiency is therefore of great importance.
  • a cylinder piston unit which comprises a pulsating working space.
  • the cylinder-piston unit comprises a sealing hose that is axially expandable and inside which the pulsating working space is located.
  • the object of the invention is therefore to create pumps or Fluid motors that are characterized by high efficiencies of the aforementioned type and by a long service life.
  • the solution to this problem according to the invention is determined by the features of claim 1.
  • Axial expansion hose diaphragm pistons with internal working space provide the basis for a robust construction with high wear resistance, even when operating with abrasive fluids.
  • relatively large dead spaces must generally be observed, which adversely affects the volumetric efficiency. It is precisely this problem that is solved with the invention, namely with the aid of dead space displacement bodies. Overall, the invention thus enables a largely optimized type of construction.
  • Fig. 1 is a working piston provided with an axial expansion hose membrane (shown in the top dead center position and hereinafter referred to briefly as ASK) at its lower end with an oscillating drive device AVO shown here only schematically by a downward-pointing arrow.
  • the upper end of the axial expansion hose membrane piston ASK is arranged fixed to the frame and surrounds an inlet valve EV, which is fed via inlet channels EK and is designed as a check valve.
  • the downwardly extending, hollow-cylindrical section Z of the axial expansion hose diaphragm piston is mounted in an axially displaceable manner in a housing bore GB with a lubrication (not shown here).
  • An oscillating working space AR is formed in the interior of the axial expansion hose membrane piston ASK, from which a coaxial delivery channel FK leads to an outlet valve AV, which is also designed as a check valve, and to an outlet channel AK.
  • a substantially cylindrical dead space displacement body TK1 is connected to the axial expansion hose diaphragm piston ASK on the side of the working space AR, which is shown here in the top dead center position and obviously has a significant reduction in the effective dead space.
  • dead space displacer TK1 engaging in the working space AR Fig. 6 illustrated steepening of the pressure rise as well as the pressure drop, overall a significant improvement in volumetric efficiency.
  • a dead space displacement body TK2a is provided which is fixed to the frame, but which in turn is due to the arrangement of the working space AR within the axial expansion hose membrane piston ASK and thus because of the relative movement between the axial expansion hose membrane piston ASK and the dead space displacement body TK2a given by the pump drive AR intervenes and brings about a similar improvement in volumetric efficiency.
  • the reduction of the moving mass due to the dead space displacement body TK2a fixed to the frame is particularly advantageous here.
  • Inlet valve EV and outlet valve AV are analogous to the version according to Fig. 1 formed, however, the connection between the working space and the outlet valve is provided by a longer coaxial channel KOK in the dead space displacement body TK2a and in the inlet valve EV.
  • the associated reduction in dead space displacement can be kept within reasonable limits.
  • This embodiment is particularly advantageous in that the displacement body TK2a has an internal flow and an outside flow around the working fluid with a flow deflection in an opening or end region of the dead space displacement body TK2a.
  • a dead space displacement body TK2b which is fixed to the frame is again provided, with the corresponding dynamic advantages.
  • the dead space displacement volume is maximized.
  • the fluid outlet takes place from the work area AR via cross bores BQ immediately below the inlet valve EV and a short and therefore practically harmless longitudinal channel LK.
  • a dead space displacement body TK2c with fixed frame is also provided with the corresponding dynamic advantages.
  • a compression-inactive arrangement of the outlet valve AV is provided at the end of an outlet coaxial channel AKOK on the working space side, which ensures optimum dead space displacement.
  • valve body VK designed as a partial spherical shell is pivotably mounted about the center of the ball relative to a correspondingly shaped valve seat.
  • a longitudinal guide by means of a swivel guide SF and a centering member ZG is also required.
  • the latter is connected to the valve body VK by a tight-elastic snap lock SV, so that relatively light and vibration-damping material can be considered for the swivel guide SF.
  • the inner bore of the swivel guide is weak Toroidal with a suitable sliding seat for the centering member ZG. Such a construction has proven itself due to its high stability and wear resistance.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)
EP07804595.2A 2006-07-11 2007-07-11 Zylinder-kolbenanordnung für eine fluidpumpe oder einen fluidmotor Active EP2038553B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH11192006 2006-07-11
PCT/IB2007/001953 WO2008007209A2 (de) 2006-07-11 2007-07-11 Zylinder-kolbenanordnung für eine fluidpumpe oder einen fluidmotor

Publications (2)

Publication Number Publication Date
EP2038553A2 EP2038553A2 (de) 2009-03-25
EP2038553B1 true EP2038553B1 (de) 2020-07-08

Family

ID=38752552

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07804595.2A Active EP2038553B1 (de) 2006-07-11 2007-07-11 Zylinder-kolbenanordnung für eine fluidpumpe oder einen fluidmotor

Country Status (7)

Country Link
US (1) US8794938B2 (enrdf_load_stackoverflow)
EP (1) EP2038553B1 (enrdf_load_stackoverflow)
JP (1) JP5502470B2 (enrdf_load_stackoverflow)
CN (1) CN101523052B (enrdf_load_stackoverflow)
CA (1) CA2657348C (enrdf_load_stackoverflow)
RU (1) RU2476724C2 (enrdf_load_stackoverflow)
WO (1) WO2008007209A2 (enrdf_load_stackoverflow)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2005504C2 (nl) * 2010-10-12 2012-04-16 Innas Bv Hydraulische inrichting met een spiegelplaat.
AT512043B1 (de) * 2012-03-05 2013-05-15 Bhdt Gmbh Hochdruckeinrichtung für flüssige Medien
WO2014191130A2 (de) * 2013-05-29 2014-12-04 Magna Powertrain Bad Homburg GmbH Kugel-zylinder-hülsenventil
DE102013219439A1 (de) * 2013-09-26 2014-11-27 Continental Automotive Gmbh Ventileinrichtung für eine Hochdruckpumpe
CN108350873B (zh) 2015-11-11 2021-08-27 固瑞克明尼苏达有限公司 用于球泵的活塞球引导件
EP3246567B1 (en) 2016-05-19 2022-03-09 Innas B.V. A hydraulic device
EP3246566B1 (en) 2016-05-19 2018-12-19 Innas B.V. A hydraulic device, a method of manufacturing a hydraulic device and a group of hydraulic devices
EP3246565B1 (en) 2016-05-19 2019-09-18 Innas B.V. A hydraulic device
US11572876B2 (en) 2017-08-30 2023-02-07 Graco Minnesota Inc. Pump piston
EP4083424B1 (en) 2021-04-29 2023-11-15 Innas B.V. Hydraulic device

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US2606032A (en) * 1944-03-13 1952-08-05 Charles F Warren Jr Check valve assembly
US3227093A (en) * 1964-02-03 1966-01-04 John F Taplin Piston pump having rolling diaphragm
US3250225A (en) * 1964-07-13 1966-05-10 John F Taplin Mechanical system comprising feed pump having a rolling diaphragm
CH424402A (de) * 1964-08-03 1966-11-15 Burckhardt Ag Maschf Konzentrisches Saug- und Druckventil
US3375759A (en) * 1966-05-18 1968-04-02 Bourns Inc Rolling-diaphragm pump
US3311028A (en) * 1966-07-26 1967-03-28 John F Taplin Rolling diaphragm device with rolling diaphragm having clamping bead and resilient clamping means for the bead
FR2375466A1 (fr) * 1976-07-30 1978-07-21 Dba Pompe hydraulique
US4172465A (en) * 1977-11-07 1979-10-30 Conbraco Industries, Inc. Check valve
US4248403A (en) * 1979-01-08 1981-02-03 Leslie, Co. Plug assembly for movable plug valves
DE2914694C2 (de) * 1979-04-11 1980-09-11 Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal Zylinderkolben-Aggregat
JPS55161175U (enrdf_load_stackoverflow) * 1979-05-04 1980-11-19
JPS5892485U (ja) * 1981-12-18 1983-06-22 株式会社井上ジャパックス研究所 ポンプ
DE3446914A1 (de) * 1984-12-21 1986-07-03 Ott Kg Lewa Membranpumpe mit hydaulisch angetriebener rollmembran
DE3539057A1 (de) * 1985-11-04 1987-05-14 Vdo Schindling Elektromagnetisch betaetigbares kraftstoffeinspritzventil
US4718893A (en) * 1986-02-03 1988-01-12 University Of Minnesota Pressure regulated implantable infusion pump
FR2600723B3 (fr) * 1986-06-26 1988-08-26 Berthoud Sa Pompe a piston a membrane a deroulement.
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JPS63152968U (enrdf_load_stackoverflow) * 1987-03-27 1988-10-06
DE3806401A1 (de) * 1988-02-29 1989-09-07 Teves Gmbh Alfred Bremskraftverstaerker
JPH083784Y2 (ja) * 1989-08-09 1996-01-31 トヨタ自動車株式会社 チェック弁装置
JPH03179184A (ja) * 1989-12-05 1991-08-05 Nippon Pillar Packing Co Ltd 往復動ポンプ
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Also Published As

Publication number Publication date
WO2008007209A2 (de) 2008-01-17
CA2657348A1 (en) 2008-01-17
RU2009104351A (ru) 2010-08-20
EP2038553A2 (de) 2009-03-25
JP2009542976A (ja) 2009-12-03
JP5502470B2 (ja) 2014-05-28
CN101523052B (zh) 2014-08-27
CN101523052A (zh) 2009-09-02
CA2657348C (en) 2015-06-16
US8794938B2 (en) 2014-08-05
US20100119394A1 (en) 2010-05-13
RU2476724C2 (ru) 2013-02-27
WO2008007209A3 (de) 2008-02-28

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