EP1906019A3 - Non-return valve for metering pumps - Google Patents

Non-return valve for metering pumps Download PDF

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Publication number
EP1906019A3
EP1906019A3 EP07018249A EP07018249A EP1906019A3 EP 1906019 A3 EP1906019 A3 EP 1906019A3 EP 07018249 A EP07018249 A EP 07018249A EP 07018249 A EP07018249 A EP 07018249A EP 1906019 A3 EP1906019 A3 EP 1906019A3
Authority
EP
European Patent Office
Prior art keywords
valve body
passage opening
valve
metering pumps
closing
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Withdrawn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
EP07018249A
Other languages
German (de)
French (fr)
Other versions
EP1906019A2 (en
Inventor
Wolf-Dieter Wichmann
Frank Gessler
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.)
Lechler GmbH
Original Assignee
Lechler 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 Lechler GmbH filed Critical Lechler GmbH
Publication of EP1906019A2 publication Critical patent/EP1906019A2/en
Publication of EP1906019A3 publication Critical patent/EP1906019A3/en
Withdrawn legal-status Critical Current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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/14—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet
    • B05B12/1418—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet for supplying several liquids or other fluent materials in selected proportions to a single spray outlet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2486—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device with means for supplying liquid or other fluent material to several discharge devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/26—Apparatus in which liquids or other fluent materials from different sources are brought together before entering the discharge device
    • B05B7/28—Apparatus in which liquids or other fluent materials from different sources are brought together before entering the discharge device in which one liquid or other fluent material is fed or drawn through an orifice into a stream of a carrying fluid
    • B05B7/32—Apparatus in which liquids or other fluent materials from different sources are brought together before entering the discharge device in which one liquid or other fluent material is fed or drawn through an orifice into a stream of a carrying fluid the fed liquid or other fluent material being under pressure
    • 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
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/102—Disc valves
    • F04B53/1022—Disc valves having means for guiding the closure member axially

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Check Valves (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

Rückschlagventil für Dosierpumpen, insbesondere zur Anwendung bei Spritzvorrichtungen der Pflanzenschutztechnik, mit einem Ventilgehäuse (12) mit einer Durchlassöffnung und einem Ventilkörper (18), der wenigstens eine die Durchlassöffnung verschließende Position und eine Durchlassöffnung freigebende Position einnehmen kann, und Mitteln (24) zum Aufbringen einer Schließkraft auf den Ventilkörper, wobei die Schließkraft den Ventilkörper in seine, die Durchlassöffnung verschließende Position vorspannt und wobei der Ventilkörper in seinem, den Ventilsitz verschließenden Zustand einen Förderdruckbereich (34) von einem Gegendruckbereich (36) trennt. Der Ventilkörper ist so gestaltet und im Ventilkörper angeordnet, dass in seiner die Durchlassöffnung verschließenden Position eine parallel zum freien Querschnitt der Durchlassöffnung ausgerichtete effektive Angriffsfläche des Ventilkörpers für einen Gegendruck im Gegendruckbereich im Wesentlichen null ist.

Figure imgaf001
Check valve for metering pumps, in particular for use in spraying devices of plant protection technology, with a valve housing (12) having a passage opening and a valve body (18) which can assume at least one of the passage opening occluding position and a passage opening releasing position, and means (24) for application a closing force on the valve body, wherein the closing force biases the valve body into its, the passage opening occluding position and wherein the valve body in its, the valve seat closing state a discharge pressure region (34) from a counter-pressure region (36) separates. The valve body is designed and arranged in the valve body such that in its position closing the passage opening, an effective engagement surface of the valve body aligned parallel to the free cross section of the passage opening is essentially zero for a back pressure in the counterpressure region.
Figure imgaf001
EP07018249A 2006-09-19 2007-09-18 Non-return valve for metering pumps Withdrawn EP1906019A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006045448A DE102006045448A1 (en) 2006-09-19 2006-09-19 Check valve for injection device i.e. field syringe, has valve body designed and arranged in housing such that contact surface aligned in its position closing for free cross-section is null for counter pressure in counter pressure area

Publications (2)

Publication Number Publication Date
EP1906019A2 EP1906019A2 (en) 2008-04-02
EP1906019A3 true EP1906019A3 (en) 2009-10-28

Family

ID=38736024

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07018249A Withdrawn EP1906019A3 (en) 2006-09-19 2007-09-18 Non-return valve for metering pumps

Country Status (2)

Country Link
EP (1) EP1906019A3 (en)
DE (1) DE102006045448A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008002467A1 (en) * 2008-06-17 2009-12-24 Robert Bosch Gmbh Dosing system for a liquid medium, in particular urea-water solution
FR2964047B1 (en) 2010-08-31 2015-05-22 Exel Ind SPRAY ASSEMBLY AND SPRAYER EQUIPPED WITH AT LEAST ONE SUCH
US10036378B2 (en) 2013-02-28 2018-07-31 Ingersoll-Rand Company Positive displacement pump with pressure compensating calibration
CN103452831B (en) * 2013-08-20 2016-02-24 米顿罗工业设备（上海）有限公司 A kind of automatic control pressure vent being applied to sunk type pump head in metering pump
CN114060574A (en) * 2021-11-25 2022-02-18 蓝箭航天空间科技股份有限公司 Check valve, rocket engine supercharging system and rocket engine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3631887A (en) * 1969-08-28 1972-01-04 Bosch Gmbh Robert Fluid-flow-regulating apparatus
US3980230A (en) * 1973-08-14 1976-09-14 Pringle Orvi C Sprayer-mixer
DE10014191A1 (en) * 2000-03-24 2001-09-27 Guenter Stein Non-return valve has upper housing with cavity containing hemispherical valve body and spring which biases it towards closed position connected to valve seat by socket with central aperture which fits over projection on its upper surface
DE102004020275A1 (en) * 2004-03-15 2005-10-20 Brueninghaus Hydromatik Gmbh Valve
DE102004047585A1 (en) * 2004-09-23 2006-03-30 Lechler Gmbh Active ingredient supply system for a device for spraying agricultural liquids comprises an active ingredient container, a dosing pump for injecting the active ingredient and an active ingredient feed line

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2831697A1 (en) * 1978-07-19 1980-01-31 Friedrich Freimuth Hydraulically released non-return valve - has release plunger whose stem acts against spring loaded plug to restrict return flow
DE4401074B4 (en) * 1994-01-15 2007-01-18 Robert Bosch Gmbh Pump arrangement, in particular for conveying fuel from a reservoir to an internal combustion engine
DE19902292A1 (en) * 1999-01-21 2000-07-27 Mannesmann Rexroth Ag Supply unit for fuel injection system, with output connection of pressure limiting valve arranged so that fluid can flow direct to induction connection of pump when valve is open
DE202006000277U1 (en) * 2006-01-09 2006-03-02 Wiwa Wilhelm Wagner Gmbh & Co. Kg Dosing equipment used in discharging fluids, has storage container for storing fluid for discharge, and arranged above dual-stroke pump

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3631887A (en) * 1969-08-28 1972-01-04 Bosch Gmbh Robert Fluid-flow-regulating apparatus
US3980230A (en) * 1973-08-14 1976-09-14 Pringle Orvi C Sprayer-mixer
DE10014191A1 (en) * 2000-03-24 2001-09-27 Guenter Stein Non-return valve has upper housing with cavity containing hemispherical valve body and spring which biases it towards closed position connected to valve seat by socket with central aperture which fits over projection on its upper surface
DE102004020275A1 (en) * 2004-03-15 2005-10-20 Brueninghaus Hydromatik Gmbh Valve
DE102004047585A1 (en) * 2004-09-23 2006-03-30 Lechler Gmbh Active ingredient supply system for a device for spraying agricultural liquids comprises an active ingredient container, a dosing pump for injecting the active ingredient and an active ingredient feed line

Also Published As

Publication number Publication date
DE102006045448A1 (en) 2008-03-27
EP1906019A2 (en) 2008-04-02

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