EP0180914A2 - Clapet d'étranglement pour dispositifs de climatisation - Google Patents

Clapet d'étranglement pour dispositifs de climatisation Download PDF

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Publication number
EP0180914A2
EP0180914A2 EP85113816A EP85113816A EP0180914A2 EP 0180914 A2 EP0180914 A2 EP 0180914A2 EP 85113816 A EP85113816 A EP 85113816A EP 85113816 A EP85113816 A EP 85113816A EP 0180914 A2 EP0180914 A2 EP 0180914A2
Authority
EP
European Patent Office
Prior art keywords
housing
turbulence
throttle valve
flap
valve according
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
EP85113816A
Other languages
German (de)
English (en)
Other versions
EP0180914B1 (fr
EP0180914A3 (en
Inventor
Josef Ing. Haaz
Wolfgang Ing. Finkelstein
Gregor Ing. 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
Application filed by Gebrueder Trox GmbH filed Critical Gebrueder Trox GmbH
Publication of EP0180914A2 publication Critical patent/EP0180914A2/fr
Publication of EP0180914A3 publication Critical patent/EP0180914A3/de
Application granted granted Critical
Publication of EP0180914B1 publication Critical patent/EP0180914B1/fr
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
    • 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
    • F24F13/1486—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 bearings, pivots or hinges
    • 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
    • F24F13/24—Means for preventing or suppressing noise
    • 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
    • F24F2013/1473—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 cams or levers

Definitions

  • the invention relates to a throttle valve for air conditioning systems in a housing which has a supply air connection and an exhaust air connection and a central axis of rotation for a flap which can be pivoted between an open position and a closed position.
  • throttle valves are known. They control the air flow to a room or the like. For this reason, throttle valves of this type are mostly designed as an actuator of a corresponding control. Because a throttle valve is to be used to control or regulate the air flow over a wide range until it is completely closed, flow conditions which favor the generation of low-frequency noises, in particular in the case of valve positions in the vicinity of the closed position, result.
  • the object of the invention is to improve a throttle valve of the type described above so that the generation of low-frequency noises avoided that, while at the same time the lowest possible pressure loss is aimed for in the open position.
  • At least one turbulence grille for suppressing large-volume turbulence bales is arranged in the flow direction behind the flap and outside the pivoting range of the flap.
  • a turbulence grille fixed to the housing is arranged, which extends at an angle to the direction of flow and ends in front of the central plane of the housing, which is defined by the axis of rotation, a further turbulence grille being arranged in the region of the opposite side of the housing and pivotable about an axis parallel to the axis of rotation as well as with its free edge over a handlebar is connected to the downstream portion of the valve.
  • the pivotable turbulence grille lies essentially in the direction of flow, so that it does not disturb the flow.
  • the pivotable turbulence grille can be pivotable about an axis which is arranged just below the housing wall.
  • the handlebar can be connected to the flap in the region of the downstream edge.
  • the turbulence grille fixed to the housing should be arranged at an angle of approx. 75 ° to the flow direction, because then the lowest flow losses occur and at the same time the most favorable effect with regard to the dissolution of large-volume turbulence bales is to be expected.
  • the turbulence grille can extend in the direction of flow in the region of the central plane of the housing and can be arranged fixed to the housing.
  • the turbulence grille does not interfere at all, especially when the flap is open. Nonetheless, turbulence bales, which arise when the flap is turned against the direction of flow, are detected and dissolved by the turbulence grille because the turbulence bales also extend beyond the central plane of the housing and thus reach the region of the turbulence grille.
  • the situation is further improved if further turbulence grids which are parallel and fixed to the housing are arranged on both sides of the central plane of the housing.
  • the length of the turbulence grids in the direction of flow depends on the respective flow rate. It should be so large that all turbulence bales entrained by the air flow are caught by the turbulence grids.
  • the turbulence grids can consist of perforated plates. Turbulence grids which have a free cross section between 30% and 70% of their area have proven to be particularly favorable.
  • the turbulence grids described are particularly effective in the case of a throttle valve, the flap of which is arranged at an angle of 60 ° to the central plane of the housing in the closing direction.
  • a supply air duct and an adjoining exhaust air duct with a larger cross section can also be formed in the housing, the flap being arranged in the supply air duct and the turbulence grille in the exhaust air duct.
  • the resulting sudden cross-sectional expansion in the transition area between the supply air duct and the exhaust air duct is harmless because the turbulence bales which are created there are also captured by the turbulence grids.
  • an arrangement is favorable in which the transition between the supply air duct and the exhaust air duct follows the line of contact between the supply air duct and the closed flap.
  • the throttle valve shown includes a housing 1 with a supply air connection 2, from which a supply air duct 3 extends.
  • An exhaust air duct 4 adjoins the supply air duct 3 and ends at an exhaust air connection 5.
  • the flap 7 can be designed as an actuator of a control system, not shown. Accordingly, an actuator (not shown) can act on the axis of rotation 6.
  • the flap 7 can be pivoted in the direction of the arrows 8 between an open position, which is shown with solid lines, and a closed position, which is shown with dash-dotted lines.
  • An arrow 9 indicates the direction of flow of air through the housing 1.
  • the exhaust air duct 4 has a larger cross section than the supply air duct 3.
  • the flap 7 has a base area such that, in the closed position, it makes an angle of approximately 60 ° to the central plane 10 of the housing 1.
  • the resulting line of contact 11 between closed flap 7 and supply air duct 3 practically also forms the end of supply air duct 3 or the transition between supply air duct 3 and exhaust air duct 4.
  • a turbulence grille 12 is attached below the central plane 10 on the inside of the exhaust air duct 4 and extends at an angle of approximately 75 ° to the flow direction to just below the central plane 10.
  • Another turbulence grille 13 is articulated above the central plane 10 and just below the inside of the exhaust air duct 4 with an axis 14 which extends parallel to the axis of rotation 6 of the flap 7.
  • the turbulence grille 13, which can be pivoted about the axis 14, is connected in the region of its free edge 15 to a link 16 which in turn is articulated to the flap 7 in the region of the downstream edge 17 thereof.
  • the turbulence grille 13 With increasing deflection of the flap 7 from the open position, the turbulence grille 13 is also pivoted about its axis 14 until, when the flap 7 is in the closed position, it assumes the position indicated by dash-dotted lines, in which the free edge 15 of the flap 7 is slightly above the central plane 10 .
  • the turbulence grids 12, 13 capture large-volume turbulence bales that come from the flap 7 set against the direction of flow and dissolve them into a large number of smaller turbulence bales. This effectively prevents the generation of low-frequency noise.
  • the same reference numerals designate the same parts.
  • the supply air duct 3 and the exhaust air duct 4 form the same cross sections.
  • a turbulence grating 18 is arranged, which extends approximately downstream from the axis of rotation 6 and parallel to the central plane 10.
  • further turbulence grids 19, 20 parallel thereto are arranged approximately halfway between the central plane 10 and the upper or lower housing wall, the beginning of which lies outside the pivoting range of the flap 7 and which extend parallel to the turbulence grille 18 or the central plane 10 .
  • the large-volume turbulence bales emanating from the flap 7 are also detected with these turbulence grids and broken down into a large number of small turbulence bales.
  • All of the turbulence grids shown consist of perforated sheets, the cross-section of which corresponds to approximately 30 to 70% of their area.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Flow Control Members (AREA)
  • Communication Cables (AREA)
EP85113816A 1984-11-05 1985-10-30 Clapet d'étranglement pour dispositifs de climatisation Expired EP0180914B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19848432305U DE8432305U1 (de) 1984-11-05 1984-11-05 Drosselklappe fuer klimatechnische anlagen
DE8432305U 1984-11-05

Publications (3)

Publication Number Publication Date
EP0180914A2 true EP0180914A2 (fr) 1986-05-14
EP0180914A3 EP0180914A3 (en) 1987-01-14
EP0180914B1 EP0180914B1 (fr) 1989-05-31

Family

ID=6772351

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85113816A Expired EP0180914B1 (fr) 1984-11-05 1985-10-30 Clapet d'étranglement pour dispositifs de climatisation

Country Status (3)

Country Link
EP (1) EP0180914B1 (fr)
DE (2) DE8432305U1 (fr)
NO (1) NO160470C (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0863303A2 (fr) * 1997-03-04 1998-09-09 Nippon Soken, Inc. Dispositif pour éviter le bruit d'écoulement autour d'un papillon

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9217702U1 (de) * 1992-12-24 1993-04-22 "Schako" Metallwarenfabrik Ferdinand Schad KG Zweigniederlassung Kolbingen, 7201 Kolbingen Verteilkasten für Zu- und/oder Abluft
FR2729461B1 (fr) * 1995-01-17 1997-04-18 Cerga Dispositif de reglage de la section de passage d'une bouche de ventilation d'air d'un local
DE102004046210B4 (de) * 2003-09-26 2011-06-01 Ernst Hagmann Belüftungsvorrichtung und Gebäude mit einer Belüftungsvorrichtung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3147768A (en) * 1961-11-15 1964-09-08 Barber Colman Co Air flow control damper
FR1571774A (fr) * 1967-06-29 1969-06-20
FR2158408A1 (fr) * 1971-11-01 1973-06-15 Trane Co
DE2653161A1 (de) * 1976-11-23 1978-05-24 Schako Metallwarenfabrik Luftverteilkasten fuer belueftungs- und klimaanlagen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3147768A (en) * 1961-11-15 1964-09-08 Barber Colman Co Air flow control damper
FR1571774A (fr) * 1967-06-29 1969-06-20
FR2158408A1 (fr) * 1971-11-01 1973-06-15 Trane Co
DE2653161A1 (de) * 1976-11-23 1978-05-24 Schako Metallwarenfabrik Luftverteilkasten fuer belueftungs- und klimaanlagen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0863303A2 (fr) * 1997-03-04 1998-09-09 Nippon Soken, Inc. Dispositif pour éviter le bruit d'écoulement autour d'un papillon
EP0863303A3 (fr) * 1997-03-04 1999-03-31 Nippon Soken, Inc. Dispositif pour éviter le bruit d'écoulement autour d'un papillon
US5970963A (en) * 1997-03-04 1999-10-26 Nippon Soken, Inc. Apparatus for preventing flow noise in throttle valve

Also Published As

Publication number Publication date
DE8432305U1 (de) 1985-02-07
EP0180914B1 (fr) 1989-05-31
NO854324L (no) 1986-05-06
EP0180914A3 (en) 1987-01-14
NO160470C (no) 1989-04-19
NO160470B (no) 1989-01-09
DE3570741D1 (en) 1989-07-06

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