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DE102004016831A1 - Device for controlling a media stream preferably at very high pressures - Google Patents

Device for controlling a media stream preferably at very high pressures Download PDF

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Publication number
DE102004016831A1
DE102004016831A1 DE200410016831 DE102004016831A DE102004016831A1 DE 102004016831 A1 DE102004016831 A1 DE 102004016831A1 DE 200410016831 DE200410016831 DE 200410016831 DE 102004016831 A DE102004016831 A DE 102004016831A DE 102004016831 A1 DE102004016831 A1 DE 102004016831A1
Authority
DE
Germany
Prior art keywords
valve
controlling
high pressures
valve chamber
dollar
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.)
Granted
Application number
DE200410016831
Other languages
German (de)
Other versions
DE102004016831B4 (en
Inventor
Erich Schuermann
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.)
MICROCELL POLYMER TECHNOLOGY G
Original Assignee
MICROCELL POLYMER TECHNOLOGY G
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 MICROCELL POLYMER TECHNOLOGY G filed Critical MICROCELL POLYMER TECHNOLOGY G
Priority to DE200410016831 priority Critical patent/DE102004016831B4/en
Priority to PCT/EP2005/002915 priority patent/WO2005097454A1/en
Publication of DE102004016831A1 publication Critical patent/DE102004016831A1/en
Application granted granted Critical
Publication of DE102004016831B4 publication Critical patent/DE102004016831B4/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/3442—Mixing, kneading or conveying the foamable material
    • B29C44/3446—Feeding the blowing agent

Landscapes

  • Injection Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

Dargestellt und beschrieben ist eine Vorrichtung zur Steuerung eines Gas- oder Flüssigkeitsstromes vorzugsweise bei sehr hohen Drücken, insbesondere zur Einspeisung eines überkritischen Fluids in eine Kunststoffschmelze einer Kunststoffspritzgießmaschine. DOLLAR A Aufgabe der Erfindung ist es, eine Vorrichtung zur Steuerung eines Gas- oder Flüssigkeitsstromes vorzugsweise bei sehr hohen Drücken zu schaffen, die die vorgenannten Nachteile des Standes der Technik nicht aufweist. DOLLAR A Die Lösung dieser Aufgabe ergibt sich daraus, dass der ersten Ventilkammer durch einen Zwischenraum beabstandet eine zweite Ventilkammer vorgelagert ist, dass die Einspeiseleitung im Bereich des Zwischenraumes angeordnet ist, dass zwischen den in den beiden Ventilkammern angeordneten Ventilkörpern ein Koppelglied angeordnet ist, dessen Länge den Abstand der Ventilkammern übersteigt, dass die erste Ventilkammer mit einer Entlüftungsleitung versehen ist und dass durch die Betätigung des Stellgliedes sowie den Fluiddruck ein gegensinniger Verschlusszustand der Ventilkörper gewährleistet ist.Shown and described is a device for controlling a gas or liquid flow, preferably at very high pressures, in particular for feeding a supercritical fluid into a plastic melt of a plastic injection molding machine. DOLLAR A object of the invention is to provide a device for controlling a gas or liquid flow, preferably at very high pressures, which does not have the aforementioned disadvantages of the prior art. DOLLAR A The solution to this problem arises from the fact that the first valve chamber is spaced by a gap upstream of a second valve chamber, that the feed line is arranged in the region of the intermediate space, that between the valve bodies arranged in the two valve bodies, a coupling member is arranged whose length exceeds the distance between the valve chambers, that the first valve chamber is provided with a vent line and that an opposite closure state of the valve body is ensured by the actuation of the actuator and the fluid pressure.

DE200410016831 2004-04-01 2004-04-01 Device for controlling a gas or liquid flow Expired - Fee Related DE102004016831B4 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE200410016831 DE102004016831B4 (en) 2004-04-01 2004-04-01 Device for controlling a gas or liquid flow
PCT/EP2005/002915 WO2005097454A1 (en) 2004-04-01 2005-03-18 Device for controlling a media flow preferably at very high pressures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200410016831 DE102004016831B4 (en) 2004-04-01 2004-04-01 Device for controlling a gas or liquid flow

Publications (2)

Publication Number Publication Date
DE102004016831A1 true DE102004016831A1 (en) 2005-10-20
DE102004016831B4 DE102004016831B4 (en) 2006-03-23

Family

ID=34963618

Family Applications (1)

Application Number Title Priority Date Filing Date
DE200410016831 Expired - Fee Related DE102004016831B4 (en) 2004-04-01 2004-04-01 Device for controlling a gas or liquid flow

Country Status (2)

Country Link
DE (1) DE102004016831B4 (en)
WO (1) WO2005097454A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102310516B (en) * 2011-08-30 2014-06-04 中国科学院宁波材料技术与工程研究所 Injection apparatus for supercritical fluid
CN107042621B (en) * 2017-04-06 2023-04-07 华东交通大学 Simple and reliable water-assisted injection molding process water-gas injection and discharge control valve

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1920884U (en) * 1962-02-24 1965-08-05 Draegerwerk Ag DEVICE FOR CONTROLLING A GAS FLOW FOR A CONTROL LINE.
DD225090A1 (en) * 1984-04-05 1985-07-24 Wmk 7 Oktober Berlin CONTROL DEVICE FOR UNITING AND FEEDING WORKPIECES
US6602063B1 (en) * 2000-07-21 2003-08-05 Trexel, Inc. Discontinuous blowing agent delivery system and method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4817669A (en) * 1987-06-04 1989-04-04 B.R. Controls, Inc. Control valve
US5152320A (en) * 1992-01-06 1992-10-06 Tri-Clover, Inc. Reverse-acting diverter valve
DE10107205C1 (en) * 2001-07-25 2002-07-18 Kloeckner Desma Schuhmaschinen Valve system for dosing additives into polymer melt in extruder comprises valve controlling lines from additive tank to dosing cylinder and line connecting cylinder with second valve which controls lines leading from cylinder to extruder
DE20221441U1 (en) * 2002-05-31 2005-12-15 Grundfos A/S Valve unit for compact heating installation includes two seal seats and two sealing bodies moved by operating device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1920884U (en) * 1962-02-24 1965-08-05 Draegerwerk Ag DEVICE FOR CONTROLLING A GAS FLOW FOR A CONTROL LINE.
DD225090A1 (en) * 1984-04-05 1985-07-24 Wmk 7 Oktober Berlin CONTROL DEVICE FOR UNITING AND FEEDING WORKPIECES
US6602063B1 (en) * 2000-07-21 2003-08-05 Trexel, Inc. Discontinuous blowing agent delivery system and method

Also Published As

Publication number Publication date
DE102004016831B4 (en) 2006-03-23
WO2005097454A1 (en) 2005-10-20

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee