GB1535980A - Apparatuses for limiting the outgoing air flow in natural ventilation systems - Google Patents

Apparatuses for limiting the outgoing air flow in natural ventilation systems

Info

Publication number
GB1535980A
GB1535980A GB21722/76A GB2172276A GB1535980A GB 1535980 A GB1535980 A GB 1535980A GB 21722/76 A GB21722/76 A GB 21722/76A GB 2172276 A GB2172276 A GB 2172276A GB 1535980 A GB1535980 A GB 1535980A
Authority
GB
United Kingdom
Prior art keywords
duct
outgoing air
temperature
flow
wall
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
GB21722/76A
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.)
Teknoterm Systems AB
Original Assignee
Teknoterm Systems AB
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 Teknoterm Systems AB filed Critical Teknoterm Systems AB
Publication of GB1535980A publication Critical patent/GB1535980A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • 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
    • F24F11/76—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 by means responsive to temperature, e.g. bimetal springs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F2007/004—Natural ventilation using convection

Landscapes

  • 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)
  • Temperature-Responsive Valves (AREA)
  • Ventilation (AREA)
  • Building Environments (AREA)

Abstract

1535980 Temperature-responsive actuating- elements TEKNOTERM SYSTEMS AB 25 May 1976 [26 May 1975] 21722/76 Heading G1D [Also in Divisions F2 and F4] Apparatus for controlling the rate of air discharge from a venting duct 1 of a natural ventilation system comprises a movable valve element 3 for mounting in the duct 1, a temperature responsive element 5 for mounting externally of the duct 1 exposed to the prevailing outdoor temperature and wind conditions, the element 5 being connected to valve element 3 for actuation thereof, and means for conducting a portion of the flow of outgoing air from the duct 1 into contact with the element 5, the arrangement being such that the actuation of element 5 by said portion of outgoing air decreases at increasing wind force, whereby element 5 operates so as to gradually close element 3 with increasing wind force, gradually open element 3 with decreasing wind force, gradually close element 3 with decreasing outgoing air temperature and/or decreasing outdoor temperature, and gradually open element 3 with increasing outgoing air temperature and/or increasing outdoor temperature. In the form shown, valve element 3 co-operates with a fixed or adjustable seat 15 which is below or above element 3 according to the construction of element 5. A wall 12 across the end 2 of the duct 1 guides said portion of the outgoing air-flow into contact with element 5 via openings in a guide sleeve 6a which is fixed to element 3 and co-operates with an opening 13 in wall 12. The remainder of the air-flow from duct 1 escapes through openings 17. In another embodiment, element 3 is a butterfly damper, actuated by a shaft (4), Fig. 1 (not shown) extending through the wall of duct 1, and said portion of the outgoing air-flow is conducted into contact with the element 5 via at least one opening (6) in the duct wall and an associated duct spigot(s). The temperature responsive element 5 may take the form of a helix of a bi-metal strip; or a double helix which consists of a bi-metal strip formed into a single helix which is then formed into a helical coil, as shown, or a stack of washer-shaped bi-metal elements.
GB21722/76A 1975-05-26 1976-05-25 Apparatuses for limiting the outgoing air flow in natural ventilation systems Expired GB1535980A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7505932A SE385731B (en) 1975-05-26 1975-05-26 EXHAUST RESTRICTIVE DEVICE IN SELF-DRAWING SYSTEM

Publications (1)

Publication Number Publication Date
GB1535980A true GB1535980A (en) 1978-12-13

Family

ID=20324642

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21722/76A Expired GB1535980A (en) 1975-05-26 1976-05-25 Apparatuses for limiting the outgoing air flow in natural ventilation systems

Country Status (8)

Country Link
CA (1) CA1047825A (en)
DE (1) DE2621959C3 (en)
DK (1) DK146268C (en)
FI (1) FI57479C (en)
FR (1) FR2312737A1 (en)
GB (1) GB1535980A (en)
NO (1) NO136766C (en)
SE (1) SE385731B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2277374A (en) * 1993-03-23 1994-10-26 Holyoake Ind Ltd Thermally controlled diffusers
CN114322055A (en) * 2022-01-14 2022-04-12 姚哲凡 Big board lamp heating warmer
CN115751663A (en) * 2022-11-28 2023-03-07 贵州电网有限责任公司 Automatic regulating device and method for heat dissipation load of central air conditioner external unit

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE410803B (en) * 1978-03-21 1979-11-05 Teknoterm Systems Ab APPARATUS FOR CONTROLLING THE FLOW OF AIR THROUGH A VENTILATION PASSAGE
SE451502B (en) * 1986-01-30 1987-10-12 Morgan Liljengren VALVE CONTROL DEVICE

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2277374A (en) * 1993-03-23 1994-10-26 Holyoake Ind Ltd Thermally controlled diffusers
AU674049B2 (en) * 1993-03-23 1996-12-05 Holyoake Industries Limited Thermally controlled diffusers
GB2277374B (en) * 1993-03-23 1996-12-11 Holyoake Ind Ltd Thermally controlled diffusers
CN114322055A (en) * 2022-01-14 2022-04-12 姚哲凡 Big board lamp heating warmer
CN115751663A (en) * 2022-11-28 2023-03-07 贵州电网有限责任公司 Automatic regulating device and method for heat dissipation load of central air conditioner external unit

Also Published As

Publication number Publication date
NO761773L (en) 1976-11-29
FR2312737A1 (en) 1976-12-24
FI57479B (en) 1980-04-30
FI57479C (en) 1980-08-11
NO136766B (en) 1977-07-25
FI761466A (en) 1976-11-27
DE2621959C3 (en) 1979-03-15
CA1047825A (en) 1979-02-06
NO136766C (en) 1977-11-02
DK146268B (en) 1983-08-15
DK146268C (en) 1984-01-23
SE385731B (en) 1976-07-19
DE2621959B2 (en) 1978-07-13
DE2621959A1 (en) 1976-12-02
FR2312737B1 (en) 1983-03-11
DK229576A (en) 1976-11-27

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19920525