EP0078972B1 - Volumenstromregler für lufttechnische Anlagen - Google Patents

Volumenstromregler für lufttechnische Anlagen Download PDF

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Publication number
EP0078972B1
EP0078972B1 EP82109854A EP82109854A EP0078972B1 EP 0078972 B1 EP0078972 B1 EP 0078972B1 EP 82109854 A EP82109854 A EP 82109854A EP 82109854 A EP82109854 A EP 82109854A EP 0078972 B1 EP0078972 B1 EP 0078972B1
Authority
EP
European Patent Office
Prior art keywords
flow regulator
volumetric flow
section
regulating member
channel
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
Application number
EP82109854A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0078972A1 (de
Inventor
Josef Haaz
Wolfgang Finkelstein
Gregor Baumeister
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.)
Gebrueder Trox GmbH
Original Assignee
Gebrueder Trox 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6145692&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0078972(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Gebrueder Trox GmbH filed Critical Gebrueder Trox GmbH
Priority to AT82109854T priority Critical patent/ATE11176T1/de
Publication of EP0078972A1 publication Critical patent/EP0078972A1/de
Application granted granted Critical
Publication of EP0078972B1 publication Critical patent/EP0078972B1/de
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/75—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity for maintaining constant air flow rate or air velocity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
    • F24F2013/146—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means with springs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
    • F24F2013/1466—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means with pneumatic means
    • 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
    • Y10T137/7786—Turbine or swinging vane type reactor
    • 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
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7869—Biased open
    • Y10T137/7875—Pivoted valves

Definitions

  • the invention relates to a volume flow controller for ventilation systems with a duct section, in which a control body is pivotally mounted about an axis bisecting the cross-section of the duct, the control body having an essentially flat wall and a length corresponding to the duct height on its upstream side.
  • Volume flow controllers are required in large numbers in ventilation systems, especially air conditioning systems. They are intended to ensure that the required volume flow flows into a room to be air-conditioned within narrow tolerances, regardless of the pressure conditions and pressure fluctuations in the overall system.
  • the requirements for a volume flow controller can be described as follows: The emerging volume flow may only deviate from the nominal volume flow within a small tolerance range. A small total pressure difference before and after the volume flow controller should be sufficient to set the target volume flow. If pressure fluctuations occur in the system, these should be damped aperiodically in the volume flow controller if possible.
  • the noise generated by the volume flow controller itself should be as low as possible.
  • the desired air volume should also be adjustable because it can change if there are more or fewer people in the room to be air-conditioned or if machines are switched on or off.
  • a volume flow regulator should also be able to be inserted into the duct system in any geometrical position.
  • volume flow controllers There are a variety of different volume flow controllers. As a control body, these volume flow controllers mostly have a flap which is balanced with the aid of weights, springs and / or damping members in such a way that it fulfills the desired requirements. Such a flap is usually mounted about an axis extending centrally to the channel cross section, about which it can pivot. The air passing through the volume flow controller flows both above the flap and below the flap. The result of this is flow separation at both the top and bottom of the flap and the formation of an unordered dead water area downstream of the flap, which is the place for the generation of low sound frequencies that are difficult or impossible to dampen.
  • the object of the invention is therefore to keep the noise generated by the volume flow controller itself low.
  • control body has a semicircular cross-section in a plane perpendicular to its pivot axis, the cross-sectional radius corresponding to half the channel height.
  • the volume flow controller In the case of the volume flow controller according to the invention, at least half the cross-section of the duct is constantly covered by the control body, because its cylinder contour lies tightly against the top or bottom of the duct. It is understood that there is a certain, very little play between the cylinder contour and the associated channel wall, so that the control body can still be pivoted about its axis. In any case, this arrangement ensures that flow separations only occur at the edge of the control body protruding into the open channel area, with only a single return flow vortex being formed with an orderly dead water, the noise generation of which is considerably less than that of an unordered dead water. For the rest, a pressure field of a confuser flow forms on the upstream side of the control body which is acted upon by the flowing air.
  • the channel section has a rectangular cross section and the control body is a half cylinder.
  • the response sensitivity of the volume flow controller is improved if the control body is a hollow body.
  • the acoustic properties of this volume flow controller are favorably influenced if the edges of the control body are rounded in the transition area between the cylinder contour and the inflow side. The edge directed against the direction of flow is then flowed around almost without detachment, while the rounding of the edges directed in the direction of flow has a favorable influence on the return flow vortex and thus the dead water area in the sense of noise reduction.
  • the control body is arranged on a shaft which is passed through the channel wall and carries a lever with a counterweight outside the channel section.
  • the balance weight which according to the preferred embodiment is slidably mounted on the lever, the dead weight of the control body can be compensated for so that there is practically an indifferent balance, so that it is possible to arrange the volume flow controller in any geometrical position in the system without that influences by weight torques can be effective.
  • the bellows also effects aperiodic damping of the control body, the degree of damping being dependent on the length and inner diameter of the filling tube.
  • the reaction speed of the control body can thus be adjusted by changing the filling tube dimension.
  • a return spring acting between the control body and the channel section can also be provided.
  • the return spring is expediently arranged outside the channel section, in which case it then acts on the shaft off-center, for. B. on the lever or on a disk attached to the shaft.
  • An adjustment or adjustment of the return spring to adapt to the prevailing circumstances can be achieved in a simple manner in that a wire or the like is connected to the end of the spring assigned to the channel section and is guided around an adjustable roller mounted on the outside of the channel section and attached to it. By turning the reel, the wire leading to the spring is wound onto the reel and thus the spring is tensioned, or vice versa. The target quantity is set by adjusting the spring tension accordingly.
  • roller It is also possible to equip the roller with a motorized adjustment drive, so that the spring tension and set quantity need not be adjusted manually.
  • a motorized adjustment drive is present, then this can also be designed as an actuator of a control circuit which, for. B. regulates the room temperature.
  • the torque generated by the return spring largely eliminates the sum of the aerodynamic torque and the torque applied by the bellows at all adjustment angles of the control body . This can be done by a suitable design of the spring z. B. by a cylindrical or a conical spring.
  • the flow conditions downstream of the control body of this volume flow controller can be improved if the control body is directly followed by a diffuser in the direction of flow, which has at least on the channel half covered by the control body in the open position, which has an inlet cross-section that leaves an inlet cross-section free that remains in the channel cross-section when the control body is open corresponds and thus aligned.
  • a diffuser in the direction of flow, which has at least on the channel half covered by the control body in the open position, which has an inlet cross-section that leaves an inlet cross-section free that remains in the channel cross-section when the control body is open corresponds and thus aligned.
  • the diffuser can have a further guide body arranged on the opposite side.
  • the guide bodies are also designed as silencers, noises arising in the area of the dead water are immediately dampened and the sound radiation into the subsequent line system is considerably reduced. You can, for example, install sound insulation mats of great thickness, through which particularly effective sound insulation in the range from 125 to 500 Hz is achieved.
  • the volume flow controller shown in FIG. 1 has a housing with a rectangular cross section, which is designed as a channel section 1.
  • a shaft 2, which carries a control body 3, is arranged in the center of the housing.
  • the shaft 2 is mounted in the housing walls.
  • the control body 3 is a hollow body with a flat wall 4, which forms the outflow side of the control body 3, and a circularly curved wall 5, so that the control body 3 is a total of a half cylinder has a cross-section whose cross-sectional radius corresponds to approximately half the height of the housing 1.
  • the arrangement is such that the control body 3 can pivot about the axis formed by the shaft 2, wherein its circularly curved wall 5 is guided with little play below the upper housing wall.
  • the shaft 2 is led out of the housing at least on one side and there carries a lever 6 with a counterweight 7 which is slidably attached to the lever 6.
  • edges 8, 9 of the control body 3 in the transition area between the circular wall 5 and the flat wall 4 are rounded.
  • Fig. 2 explains the flow conditions when the control body 3 is blown with air in the direction of arrows 10.
  • the upstream edge 8 is flowed practically bumpless. Behind the downstream edge 9, the flow separates to form a backflow vortex 11, creating an orderly dead water area 12 in which relatively little noise is generated.
  • a pressure field 13 is created on the inflow side or on the flat wall 4 of the control body, which is comparable to a confuser with the pressure field.
  • a static overpressure prevails on the left half of the flat wall 4 in FIG. 3.
  • the pressure field 13 shows that a torque about the axis formed by the shaft 2 acts on the control body 3. This torque becomes approximately zero when the inflow side of the control body 3 or its flat wall 4 extends in the direction of the channel axis or when the flat wall 4 is perpendicular to the channel axis.
  • the pressure forces acting on the outflow side of the circular cylindrical wall 5 are irrelevant, because they are radially directed forces 14 which do not exert any torque on the control body 3.
  • the balancing weight 7 allows the regulating body 3 to be balanced in such a way that the function of the volume flow controller remains guaranteed in any geometrical installation position.
  • control body 3 is arranged, as described, on the shaft 2, which extends beyond the channel wall and carries a disk 15 on the outside, on which a return spring 16 engages in the center.
  • the other end of the spring is attached to a wire 17 which is wound around a roller 18 and fixed there.
  • the roller 18 is connected coaxially to a disc 19 which can be rotated and fixed in different positions.
  • the disc 19 is also a motorized actuator, for. B. can have a pneumatic or electric drive.
  • the disc 19 and thus the target amount can be set from a remote location.
  • the servomotor can also be designed as an actuator of a control circuit that regulates, for example, the room temperature and has a temperature regulator for this purpose.
  • the embodiment with spring 16 described in connection with FIG. 4 can be implemented either in combination with the embodiment shown in FIG. 1 with counterweight 7 or also without counterweight 7. If the volume flow regulator automatically, i. H. to work without external electrical or pneumatic auxiliary energy, it is only important that the torque generated by the spring 16 largely eliminates the torque generated by aerodynamic forces on the control body 13.
  • the same reference numerals designate the same parts.
  • a plate 20 supported on opposite channel walls, which in the embodiment shown is arranged somewhat above the longitudinal axis of the housing and extends with its plane essentially in the direction of the longitudinal axis.
  • An elastic bellows 21 is supported on the underside of this plate 20 and on the inside of the flat wall 4 of the control body 3.
  • the bellows 21 has an opening formed by a filling tube 22.
  • the filling tube 22 extends substantially perpendicular to the flat wall 4 beyond this into an area which is no longer or only slightly disturbed by the pressure distribution which is formed.
  • the free end 23 of the filling pipe 22 is cut off obliquely, so that the inclined surface is directed essentially perpendicular to the flow and the full back pressure of the flow on the lower opening of the filling pipe 22.
  • the bellows 21 is inflated by the dynamic pressure and thereby generates a torque which is rectified to the aerodynamic moment.
  • the bellows 21 with the filling tube 22 also forms a component for the aperiodic damping of the vibrations of the control body 3.
  • What is important here is the length and the inner diameter of the filling tube 22.
  • the reaction speed of the control body 3 to pressure fluctuations in the channel system depends on this. With rapidly fluctuating flow conditions you will e.g. B. select narrower cross-sections of the filling tube 22 than with slowly fluctuating.
  • the filling tube 22 can also have a throttle, not shown.
  • a diffuser is connected directly downstream of the control body 3.
  • the diffuser has an upper guide body 24, the contour 25 of which is directed against the direction of flow and is adapted to the circular cylinder contour of the control body 3, so that the control body 3 and guide body 24 form a unit in terms of flow when the control body 3 is in the rest position, ie. H. its flat wall 4 extends in the direction of the longitudinal axis of the housing.
  • the guide body 24 extends only to the center of the housing 1 in the exemplary embodiment shown, so that the diffuser leaves an input cross section 26 which corresponds to the cross section left open by the fully open control body 3. If the regulating body 3 is now pivoted, for example into the position shown in FIG. 1, the backflow vortex 11 which forms behind the edge 9 is substantially less than, for example, shown in FIG. 2. Accordingly, the pressure losses are also lower.
  • the diffuser also includes a guide body 27 arranged on the opposite channel wall. Both guide bodies 24 and 27 form between them a diffuser channel 28, which can be designed in the desired manner.
  • the guide bodies 24 and 27 are designed as silencers. In the illustrated embodiment, they consist of sound insulation mats of relatively large thickness, through which a particularly effective sound absorption in the range from 125 to 500 Hz is achieved.
  • the illustrated kinked shape of the diffuser is particularly useful. Noises that occur on or behind the control body 3 are damped immediately and the sound radiation of the volume flow controller in a subsequent line system is largely mitigated by the kinked shape.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Air-Flow Control Members (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Sorption Type Refrigeration Machines (AREA)
  • Flow Control (AREA)
  • Pipe Accessories (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Ventilation (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Nozzles (AREA)
EP82109854A 1981-11-05 1982-10-26 Volumenstromregler für lufttechnische Anlagen Expired EP0078972B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82109854T ATE11176T1 (de) 1981-11-05 1982-10-26 Volumenstromregler fuer lufttechnische anlagen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3143940 1981-11-05
DE19813143940 DE3143940A1 (de) 1981-11-05 1981-11-05 Volumenstromregler fuer lufttechnische anlagen

Publications (2)

Publication Number Publication Date
EP0078972A1 EP0078972A1 (de) 1983-05-18
EP0078972B1 true EP0078972B1 (de) 1985-01-09

Family

ID=6145692

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82109854A Expired EP0078972B1 (de) 1981-11-05 1982-10-26 Volumenstromregler für lufttechnische Anlagen

Country Status (8)

Country Link
US (1) US4488575A (enrdf_load_stackoverflow)
EP (1) EP0078972B1 (enrdf_load_stackoverflow)
JP (1) JPS5888208A (enrdf_load_stackoverflow)
AT (1) ATE11176T1 (enrdf_load_stackoverflow)
DE (2) DE3143940A1 (enrdf_load_stackoverflow)
ES (3) ES275561Y (enrdf_load_stackoverflow)
NO (2) NO153587C (enrdf_load_stackoverflow)
ZA (1) ZA828144B (enrdf_load_stackoverflow)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3723587A1 (de) * 1987-07-01 1989-01-19 Buehler Ag Geb Pneumatisches foerdersystem, verfahren zur luftstroemungsregelung und verwendung eines auftriebskoerpers in einem solchen system
DE29922272U1 (de) * 1999-12-17 2000-02-17 Gebrüder Trox, GmbH, 47506 Neukirchen-Vluyn Volumenstromregler
EP1314936A3 (de) * 2001-11-22 2005-01-05 Gebrüder Trox, Gesellschaft mit beschränkter Haftung Volumenstromregler
US7273062B1 (en) * 2005-01-11 2007-09-25 Stender Jr David Flint Shut-off valve for preventing the flow of liquid through a conduit, and related processes
US20080241606A1 (en) * 2007-03-30 2008-10-02 Gallagher Emerson R Method and apparatus for humidifying a gas in fuel cell systems
US10900357B2 (en) 2013-05-01 2021-01-26 University Of Kentucky Research Foundation Blowing curtain face ventilation system for extended cut mining using passive regulator
RU2709950C1 (ru) * 2018-10-30 2019-12-23 Федеральное государственное казенное военное образовательное учреждение высшего образования "Михайловская военная артиллерийская академия" Министерства обороны Российской Федерации Регулятор расхода воздуха газодинамического типа
CN115570946A (zh) * 2022-08-18 2023-01-06 北京集度科技有限公司 出风组件以及车辆

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7908061U1 (de) * 1979-03-22 1979-07-05 Gaswaerme-Institut E.V. Essen Lueftungsvorrichtung

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE546785C (de) * 1931-04-18 1932-03-14 Polte Fa Drehschieber
SU48112A1 (ru) * 1936-03-23 1936-08-31 Б.В. Ануфриев Станок дл изготовлени зубчатых колес посредством вальцевани гор чих заготовок
CH187236A (de) * 1936-03-30 1936-10-31 Sommerhalder Otto Gasmengenregler für gasbetriebene Vorrichtungen, insbesondere Wassererhitzer.
US2502736A (en) * 1948-12-22 1950-04-04 Reuben J Marcoe Intake vent
FR1226223A (fr) * 1959-06-02 1960-07-08 Embout de tuyau de remplissage de cuves à combustible liquide
DE1473140A1 (de) * 1963-02-23 1968-10-24 Nickel Gmbh Heinrich Vorrichtung zur selbsttaetigen Regelung des Durchsatzvolumens von Stroemungsmittelkanaelen
DE1600836A1 (de) * 1967-06-22 1970-04-30 Krauss Maffei Imp Gmbh Absperrorgan zum Eintragen von Materialien in Gefaesse eines anderen Druckniveaus
DE1802489B2 (de) * 1968-10-11 1976-01-29 Gebrüder Trox GmbH, 4133 Neukirchen-Vluyn Volumenkonstantregler fuer gasstroemungen, insbesondere von hochdruck- klimaanlagen
CH587455A5 (enrdf_load_stackoverflow) * 1973-05-30 1977-04-29 Darmstadt Rudolf
SE375850B (enrdf_load_stackoverflow) * 1973-08-24 1975-04-28 Svenska Flaektfabriken Ab
DE2617830C2 (de) * 1976-04-23 1986-05-15 Gebrüder Trox, GmbH, 4133 Neukirchen-Vluyn Regelventil zur Aufrechterhaltung eines konstanten Volumenstroms, insbesondere in klimatechnischen Anlagen
US4108371A (en) * 1976-12-09 1978-08-22 Leemhuis Louis J Damper control device
US4175583A (en) * 1977-07-11 1979-11-27 Gebruder Trox, Gesellschaft Mit Beschrankter Haftung Regulator valve
FR2414160A2 (fr) * 1978-01-04 1979-08-03 Millet Jean Perfectionnements apportes aux vannes ou robinets
SE441547B (sv) * 1980-03-05 1985-10-14 Farex Svenska Ab Automatisk regleringsventil for ventilationsanordningar

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7908061U1 (de) * 1979-03-22 1979-07-05 Gaswaerme-Institut E.V. Essen Lueftungsvorrichtung

Also Published As

Publication number Publication date
NO851797L (no) 1983-05-06
NO154104C (no) 1986-07-16
DE3143940C2 (enrdf_load_stackoverflow) 1990-10-04
NO153587B (no) 1986-01-06
ES278513Y (es) 1987-05-01
ES278512Y (es) 1987-02-01
DE3143940A1 (de) 1983-05-11
ES275561U (es) 1984-08-01
NO154104B (no) 1986-04-07
ES275561Y (es) 1985-03-01
NO823526L (no) 1983-05-06
DE3261858D1 (en) 1985-02-21
EP0078972A1 (de) 1983-05-18
ATE11176T1 (de) 1985-01-15
NO153587C (no) 1986-04-16
ES278512U (es) 1986-06-01
JPS5888208A (ja) 1983-05-26
ES278513U (es) 1986-08-16
ZA828144B (en) 1983-09-28
US4488575A (en) 1984-12-18

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