DE60332891C5 - Vorrichtung zur Durchflussregelungsventil in ein Heizungs- oder Kühlungssystem - Google Patents

Vorrichtung zur Durchflussregelungsventil in ein Heizungs- oder Kühlungssystem Download PDF

Info

Publication number
DE60332891C5
DE60332891C5 DE60332891.1T DE60332891T DE60332891C5 DE 60332891 C5 DE60332891 C5 DE 60332891C5 DE 60332891 T DE60332891 T DE 60332891T DE 60332891 C5 DE60332891 C5 DE 60332891C5
Authority
DE
Germany
Prior art keywords
piston
throttling
region
housing
edge
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.)
Expired - Lifetime
Application number
DE60332891.1T
Other languages
English (en)
Other versions
DE60332891D1 (de
Inventor
John M. Trantham
George T. Watson III
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.)
Imi Hydronic Eng Inc
Imi Hydronic Engineering Inc
Original Assignee
Imi Hydronic Eng Inc
Imi Hydronic Engineering Inc
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=28454017&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE60332891(C5) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Imi Hydronic Eng Inc, Imi Hydronic Engineering Inc filed Critical Imi Hydronic Eng Inc
Publication of DE60332891D1 publication Critical patent/DE60332891D1/de
Application granted granted Critical
Publication of DE60332891C5 publication Critical patent/DE60332891C5/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D7/00—Control of flow
    • G05D7/01—Control of flow without auxiliary power
    • G05D7/0126—Control of flow without auxiliary power the sensing element being a piston or plunger associated with one or more springs
    • G05D7/0133—Control of flow without auxiliary power the sensing element being a piston or plunger associated with one or more springs within the flow-path
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/31—Expansion valves
    • F25B41/33—Expansion valves with the valve member being actuated by the fluid pressure, e.g. by the pressure of the refrigerant
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/028—Controlling a pressure difference
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/04—Control of fluid pressure without auxiliary power
    • G05D16/06—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule
    • G05D16/0608—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the controller being mounted within the flow path and having slidable elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2500/00—Problems to be solved
    • F25B2500/01—Geometry problems, e.g. for reducing size
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/0318—Processes
    • Y10T137/0324—With control of flow by a condition or characteristic of a fluid
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7781—With separate connected fluid reactor surface
    • Y10T137/7784—Responsive to change in rate of fluid flow
    • Y10T137/7787—Expansible chamber subject to differential pressures
    • Y10T137/7788—Pressures across fixed choke
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7781—With separate connected fluid reactor surface
    • Y10T137/7784—Responsive to change in rate of fluid flow
    • Y10T137/7787—Expansible chamber subject to differential pressures
    • Y10T137/7791—Pressures across flow line valve

Abstract

A fluid regulating control valve (100a, 100b) for regulating a fluid in a heating or cooling system, comprising:- a housing (200, 300) having an upstream region (102, 214, 310), into which the fluid enters the valve (100a, 100b) via a conduit and a downstream region (104, 218, 314), from which the fluid leaves the valve (100a, 100b) via a conduit and having a control orifice (110, 110a, 110b) formed therein adjacent the downstream region;- an adjustment element (212) coupled to the housing (200, 300) for selectively constricting of the control orifice (110, 110a, 110b),- a piston (204) slidably disposed within the housing, the piston having- a fluid passage, through which the controlled flow passes, defining an intermediate region (252, 312) disposed between the upstream region (214, 310) and the downstream region (218, 314);- a flange portion (232, 324) with a top side (248) and a bottom side (250) and- a stem portion (234, 326) with an edge (231, 320) adjacent the upstream region, whereby the stem portion (234, 326) extends from the flange portion (232, 324) down to the edge (231, 320) and has an inside diameter for the fluid passage;- an elastic member (208, 306) disposed within the housing for opposing translation of the piston within the housing;- a throttling element (202, 302) adjacent the upstream region, the throttling element having a throttling surface (224,318) adjacent the edge of the pistqn, the throttling surface (224, 318) and the edge (321, 320) defining a throttling orifice (108, 108a, 108b) therebetween,- whereby the intermediate region (252, 312) is disposed between the throttling orifice (108, 108a, 108b) and the control orifice (110, 110a, 110b) in such a way that fluid enters into the intermediate region (252) via the throttling orifice (108, 108a, 108b) and then travels through the intermediate region (252, 312) and enters the downstream region (218, 314) via the control orifice (110, 110a, 110b), and- an equalization aperture (242, 328) formed in the housing to allow a fluid in the downstream region to enter an equalization chamber (246, 326) defined by a region between an inside surface of the housing and an outside surface of the piston, such that the pressure differential across the flange portion (232) is equal to the pressure differential across the control orifice (110, 110a, 110b).

Description

  • Betreffend das europäische Patent 1 353 254 ( DE 603 32 891 )
    hat der 5. Senat (Nichtigkeitssenat) des Bundespatentgerichts auf Grund der mündlichen Verhandlung vom 29. November 2017 urch den Vo Bieringer für Recht erkannt:
    • I. Das europäische Patent EP 1 353 254 wird mit Wirkung für das Hoheitsgebiet der Bundesrepublik Deutschland dadurch teilweise für nichtig erklärt, dass Patentanspruch 1, dem sich die Ansprüche 2 bis 10 der Schrift DE 603 32 891 C5 anschließen, folgende Fassung erhält:

Claims (10)

  1. A fluid regulating control valve (100a, 100b) for regulating a fluid in a heating or cooling system, comprising: - a housing (200, 300) having an upstream region (102, 214, 310), into which the fluid enters the valve (100a, 100b) via a conduit and a downstream region (104, 218, 314), from which the fluid leaves the valve (100a, 100b) via a conduit and having a control orifice (110, 110a, 110b) formed therein adjacent the downstream region; - an adjustment element (212) coupled to the housing (200, 300) for selectively constricting of the control orifice (110, 110a, 110b), - a piston (204) slidably disposed within the housing, the piston having - a fluid passage, through which the controlled flow passes, defining an intermediate region (252, 312) disposed between the upstream region (214, 310) and the downstream region (218, 314); - a flange portion (232, 324) with a top side (248) and a bottom side (250) and - a stem portion (234, 326) with an edge (231, 320) adjacent the upstream region, whereby the stem portion (234, 326) extends from the flange portion (232, 324) down to the edge (231, 320) and has an inside diameter for the fluid passage; - an elastic member (208, 306) disposed within the housing for opposing translation of the piston within the housing; - a throttling element (202, 302) adjacent the upstream region, the throttling element having a throttling surface (224,318) adjacent the edge of the pistqn, the throttling surface (224, 318) and the edge (321, 320) defining a throttling orifice (108, 108a, 108b) therebetween, - whereby the intermediate region (252, 312) is disposed between the throttling orifice (108, 108a, 108b) and the control orifice (110, 110a, 110b) in such a way that fluid enters into the intermediate region (252) via the throttling orifice (108, 108a, 108b) and then travels through the intermediate region (252, 312) and enters the downstream region (218, 314) via the control orifice (110, 110a, 110b), and - an equalization aperture (242, 328) formed in the housing to allow a fluid in the downstream region to enter an equalization chamber (246, 326) defined by a region between an inside surface of the housing and an outside surface of the piston, such that the pressure differential across the flange portion (232) is equal to the pressure differential across the control orifice (110, 110a, 110b).
  2. Apparatus according to claim 1, characterized in that the elastic member (208) is mounted within the housing for opposing translation of the piston (204).
  3. Apparatus according to claim 1, characterized in that an equalization aperture (242) formed in the housing, in a sidewall (244) of the cap (206), allows a fluid in the downstream region to enter an equalization chamber (246) defined by a region between an inside surface of the housing or of the sidewall (244) and an outside surface of a piston (204), and thereby exists the pressure P3 on the piston (204).
  4. Apparatus according to claim 1, characterized in that the flow regulating control valve comprising a seal (256) disposed between the housing and a perimeter of the piston (204) to prevent leakage of the fluid from the intermediate region (252) to the equalization chamber (246) and thereby preventing the pressure level P2 entering the equalization chamber.
  5. Apparatus according to claim 1, characterized in that the regulating control valve (100) preferably comprises a square piston ring (258) disposed between a perimeter of the piston (204) and a inner surface of the housing or of the cap (206) for reducing leakage of the fluid there between and the piston ring is preferably formed from fluorocarbon and thereby preventing the pressure level P2 entering the equalization chamber.
  6. Apparatus according to claim 1, characterized in that the regulating control valve, wherein an edge (226) of the piston (204) is square.
  7. Apparatus according to claim 1, characterized in that the regulating control valve (100) and the piston (204) comprises a flange portion (232) and the steam portion (234) where the flange portion having a first side exposed to the intermediate region (252) and a second side exposed to the equalization chamber (246) and a perimeter slidably engaged with an inside surface of the housing or the cap (206).
  8. Apparatus according to claim 1, characterized in that the throttling element (202) adjacent the upstream region, the throttling element having the throttling surface (224) adjacent a edge (231) of the piston (204) where the throttling surface and the edge are defining a throttling orifice there between.
  9. Apparatus according to claim 1, characterized in that the throttling element (202) has a cavity formed in one end thereof, the cavity having an inclined surface (228) or sidewall and wherein the throttling surface is defined by an edge (508) of the throttling element and the sidewall.
  10. Apparatus according to claims 1 and 9, characterized in that the throttling element (202) preferably has three ports (512) and where the ports configured to follow the following equation: W ( x ) = 0.0004318 d 1.0055 e − 0.025 x − 1
    Figure DE000060332891C5_0001
    where d is the diameter of the piston, W is the width of each of the three ports and x is a distance from the edge of the piston to a fully closed position defined by a position of the piston in which the edge of the piston touches the inclined sidewall of the cavity of the throttling element. 11. nichtig
DE60332891.1T 2002-04-10 2003-03-10 Vorrichtung zur Durchflussregelungsventil in ein Heizungs- oder Kühlungssystem Expired - Lifetime DE60332891C5 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US121106 2002-04-10
US10/121,106 US6688319B2 (en) 2002-04-10 2002-04-10 Flow regulating control valve and method for regulating fluid flow
EP20030005223 EP1353254B1 (de) 2002-04-10 2003-03-10 Vorrichtung zur Durchflussregelungsventil in ein Heizungs- oder Kühlungssystem

Publications (2)

Publication Number Publication Date
DE60332891D1 DE60332891D1 (de) 2010-07-22
DE60332891C5 true DE60332891C5 (de) 2018-08-09

Family

ID=28454017

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60332891.1T Expired - Lifetime DE60332891C5 (de) 2002-04-10 2003-03-10 Vorrichtung zur Durchflussregelungsventil in ein Heizungs- oder Kühlungssystem

Country Status (8)

Country Link
US (1) US6688319B2 (de)
EP (1) EP1353254B1 (de)
AT (1) ATE470893T1 (de)
DE (1) DE60332891C5 (de)
DK (1) DK1353254T3 (de)
ES (1) ES2348505T3 (de)
PT (1) PT1353254E (de)
SI (1) SI1353254T1 (de)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7156120B2 (en) * 2004-07-28 2007-01-02 Cct Manufacturing, Inc. Inline liquid flow control valve
SE528703C2 (sv) * 2004-09-15 2007-01-30 Tour & Andersson Ab Anordning för flödesreglering av ett medium i ett värme-och kylsystem
EP1722143B1 (de) * 2005-05-12 2008-10-22 Behr GmbH & Co. KG Differenzdruckventil
DE102006014446A1 (de) 2006-03-29 2007-10-04 Schaeffler Kg Stromregelventil
WO2007127949A2 (en) 2006-04-27 2007-11-08 Sko Flo Industries, Inc. Flow control valve
WO2007127986A2 (en) * 2006-04-28 2007-11-08 Sko Flo Industries, Inc. Flow measuring apparatus including a piston movable in the flow barrel
US7621461B2 (en) * 2006-08-18 2009-11-24 Flow Design, Inc. System and method for regulating heat transfer on a fluid by regulating the flow of the fluid
GB0711629D0 (en) * 2007-06-15 2007-07-25 Honeywell Normalair Garrett Lt Hydraulic heating apparatus
US8276611B2 (en) * 2008-09-12 2012-10-02 Basf Corporation Externally adjustable pressure compensated flow control valve
US8118052B2 (en) * 2008-09-12 2012-02-21 Basf Corporation Method of forming a polyurethane foam
US8123081B2 (en) * 2008-09-12 2012-02-28 Basf Corporation Two component foam dispensing apparatus
WO2010053382A1 (en) * 2008-11-05 2010-05-14 Hart, David, Stanley Flow regulating device
US8973603B2 (en) * 2009-02-17 2015-03-10 Carefusion 2200, Inc. Gas flow regulating device
US8061195B2 (en) 2009-05-08 2011-11-22 Jones Iii Tommy Jefferson Flow control assembly
DE102009033376B4 (de) 2009-07-16 2014-05-28 Ta Heimeier Gmbh Voreinstellbarer Durchflussmengenregler für Heizungsanlagen
DE102009061242B3 (de) * 2009-07-16 2016-09-08 IMI Hydronic Engineering Deutschland GmbH Voreinstellbarer Durchflussmengenregler für Heizungsanlagen (II)
CN102666049B (zh) * 2009-11-23 2015-04-08 巴斯夫欧洲公司 泡沫分配设备
EP2625579B8 (de) * 2010-10-05 2019-07-10 Sko Flo Industries, Inc. Durchflussregler für hohe strömungsraten und hohe druckabfälle
CH708204A1 (de) * 2013-06-12 2014-12-15 Belimo Holding Ag Druckausgleichseinsatz.
ITMI20132133A1 (it) * 2013-12-19 2015-06-20 Vir Valvoindustria Ing Rizzio S P A Valvola di bilanciamento dinamico per controllo della portata indipendente dalla pressione
EP3120209B1 (de) 2014-03-18 2020-05-06 IMI Hydronic Engineering, Inc. Intelligente nachrüstkomponenten zur verwendung in einem flüssigkeitsfördersystem
EP2977847B1 (de) 2014-07-24 2017-04-26 Danfoss A/S Ventilanordnung
EP2988071B1 (de) * 2014-08-19 2016-06-22 IMI Hydronic Engineering International SA Durchflussmengenregler
DK3012705T3 (en) * 2014-10-22 2017-03-27 Danfoss As Heat exchanger arrangement, heating system and method for operating a heating system
EP3203123A1 (de) * 2016-02-02 2017-08-09 Danfoss A/S Ventil, insbesondere wärmetauscherventil
CN107023688A (zh) * 2016-02-02 2017-08-08 丹佛斯有限公司 尤其是热交换器阀的阀
US11371759B2 (en) * 2018-05-16 2022-06-28 Parker-Hannifin Corporation Valve comprising a dual piston assembly and method of forming a valve

Family Cites Families (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2013974A (en) 1934-03-17 1935-09-10 Edison Inc Thomas A Electric discharge starting circuit
US2139050A (en) * 1937-05-01 1938-12-06 Harry F Vickers Viscosity compensating device
US2967543A (en) 1955-06-01 1961-01-10 W A Kates Company Flow regulating valve
US2915084A (en) * 1958-06-02 1959-12-01 Carl C Taylor Flow controllers
US3424196A (en) 1966-06-01 1969-01-28 Deltrol Corp Flow regulating valve
US3472275A (en) 1967-07-28 1969-10-14 Baker Oil Tools Inc Flow regulator apparatus
US3523559A (en) 1968-05-17 1970-08-11 Crane Co Fluid flow control device
US3590861A (en) 1969-05-05 1971-07-06 Keelavite Hydraulics Ltd Liquid flow control valves
US3854497A (en) 1971-07-01 1974-12-17 Lampert S Combination shut-off valve and flow control valve with side access and viewing port for observation, testing and on-line servicing
US3951162A (en) 1971-11-03 1976-04-20 Koehring Company Control valve with flow control means
US4009826A (en) 1975-10-14 1977-03-01 Walker Jordan E Variable value constant volume flow device
US4080993A (en) 1976-09-13 1978-03-28 Aqueduct, Inc. In-line flow-control valve
JPS5471432A (en) * 1977-11-17 1979-06-08 Sotokazu Rikuta Flow rate constant value automatic control valve
US4375228A (en) 1981-02-23 1983-03-01 General Motors Corporation Two-stage flow restrictor valve assembly
US4512187A (en) 1981-11-19 1985-04-23 Getty Oil Company Flow rate controller
GB2115755B (en) * 1982-01-13 1984-12-05 Lucas Industries Ltd Improvements in fluid flow regulators
DE3234779A1 (de) 1982-09-20 1984-03-22 Danfoss A/S, 6430 Nordborg Durchflussmengenregler
US4440192A (en) 1982-09-23 1984-04-03 United Technologies Corporation Minimization of pressure drop variation in flow controllers
JPS603533U (ja) 1983-06-18 1985-01-11 三菱電機株式会社 圧力応動装置
US4513777A (en) 1983-08-22 1985-04-30 General Motors Corporation Pressure compensated flow control valve assembly for fluids containing finely divided solids
JPS61105381A (ja) 1984-10-29 1986-05-23 Kawasaki Heavy Ind Ltd 電磁流量制御弁
US4655245A (en) 1986-06-13 1987-04-07 Dowty Decoto, Inc. Hydraulic fuse
US5249599A (en) 1987-01-31 1993-10-05 Haynes Joel E Fluid flow regulator
DE3724271A1 (de) 1987-07-22 1989-02-02 Bosch Gmbh Robert Daempfungsvorrichtung
US5271430A (en) 1988-08-16 1993-12-21 Kabushiki Kaisha Komatsu Seisakusho Flow rate control valve device and flow force reduction structure
US4926704A (en) 1989-04-10 1990-05-22 Flow Design, Inc. Valve test plug
US5020774A (en) 1990-04-11 1991-06-04 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Variable orifice flow regulator
US5161577A (en) 1990-04-23 1992-11-10 Eaton Corporation Fluid controller having rotary/axial valving, and spring arrangement therefor
DE9108617U1 (de) 1991-07-12 1991-09-26 Mmm Muenchener Medizin Mechanik Gmbh, 8000 Muenchen, De
US5148830A (en) 1991-08-30 1992-09-22 Hung Liu Flow control device
US5265643A (en) 1991-12-05 1993-11-30 Flow Design Inc. Constant flow rate control valve with low pressure drop start
US5174330A (en) 1991-12-05 1992-12-29 Flow Design, Inc. Constant flow rate control valve with low pressure drop start
US5971012A (en) 1993-06-01 1999-10-26 Skoglund; Paul K. Constant flow control valve having matable piston sleeve and outlet cover
US5383489A (en) 1993-10-26 1995-01-24 Flow Design, Inc. Flow control valve with enhanced flow control piston
US5427144A (en) 1994-02-24 1995-06-27 Deumed Group Inc. Valve means with fluid retraction means
US5533549A (en) 1995-01-26 1996-07-09 Hydronic Components, Inc. Ball valve with integrated removable flow venturi, flow balancing means, and pipe union means
DE19507086C2 (de) * 1995-03-01 1997-01-30 Danfoss As Wasserhydraulik-Regelventil
DE19539521C2 (de) 1995-10-24 1999-01-07 Mannesmann Rexroth Ag Stromregelventil
US5904177A (en) * 1997-03-17 1999-05-18 Marotta Scientific Controls, Inc. Fluid flow control device
US5979495A (en) 1997-12-22 1999-11-09 Taube; Frank A. Adjustable low flow high pressure regulator
WO1999045447A1 (en) * 1998-03-05 1999-09-10 Flow Design, Inc. Method and apparatus for regulating fluid flow
US6196259B1 (en) * 1998-03-12 2001-03-06 Flow Design, Inc. Method and apparatus for regulating and terminating fluid flow
US6276397B1 (en) 2000-06-12 2001-08-21 Flow Design, Inc. Apparatus and method for shaping fluid flow

Also Published As

Publication number Publication date
EP1353254A2 (de) 2003-10-15
SI1353254T1 (sl) 2010-10-29
PT1353254E (pt) 2010-10-13
EP1353254B1 (de) 2010-06-09
EP1353254A3 (de) 2006-02-22
DE60332891D1 (de) 2010-07-22
US6688319B2 (en) 2004-02-10
US20030192597A1 (en) 2003-10-16
DK1353254T3 (da) 2010-08-23
ES2348505T3 (es) 2010-12-07
ATE470893T1 (de) 2010-06-15

Similar Documents

Publication Publication Date Title
DE60332891C5 (de) Vorrichtung zur Durchflussregelungsventil in ein Heizungs- oder Kühlungssystem
US4209133A (en) Drip level irrigation emitter unit
US4384680A (en) Fluid flow regulator unit
US4730635A (en) Valve and method
AU674086B2 (en) Regulated flow restrictor device particularly useful as a drip irrigation emitter
DE69736754D1 (de) Extrakorporales Schlitzventil und Steuerung für das Öffnen und Schliessen des Schlitzes
EP0730822A2 (de) In-line Rückhaltevorrichtung für Tröpfchenbewässerung
KR960706116A (ko) 강화된 유동 제어 피스톤을 갖는 유동 제어 밸브(Flow control valve with enhanced flow control piston)
BR0110360A (pt) Válvula de luva e método para sua montagem
ATE271671T1 (de) Vorgesteuertes steuerventil
PT830533E (pt) Conjunto de valvula
GB1567988A (en) Fluid flow control device
EP1639283B1 (de) Stromregelventile
CA2180062A1 (en) Flow regulating valve
DE69227289T2 (de) Kükenhahn
ATE200702T1 (de) Vorgesteuertes fluidumventil
ES2053985T3 (es) Valvula elastomerica para sistemas de irrigacion.
GB2019532A (en) Low Noise Value
ATE163778T1 (de) Konstant-durchfluss-regelventil mit schnellstart bei niederem eingangsdruck
KR960700467A (ko) 개선된 자동 재순환 밸브(improved automatic recirculation valve)
CA1210664A (en) Valve assemblies
EP0335090A3 (en) Control element for the adjustment of flow rate
US3540551A (en) Oil supplying apparatus with an automatic variable throttle
AU699569B2 (en) Safety goggles
FR2803009B1 (fr) Dispositif de controle de l'ecoulement d'un fluide au moyen d'une soupape differentielle