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

Vorrichtung zur Durchflussregelungsventil in ein Heizungs- oder Kühlungssystem Download PDF

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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
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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
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English (en)
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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
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Filing date
Publication date
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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
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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

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Safety Valves (AREA)
  • Details Of Valves (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Temperature-Responsive Valves (AREA)
  • Discharge Heating (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • General Induction Heating (AREA)
  • Lift Valve (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Flow Control (AREA)

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
US10/121,106 US6688319B2 (en) 2002-04-10 2002-04-10 Flow regulating control valve and method for regulating fluid flow
US121106 2002-04-10
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

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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)

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Also Published As

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

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