GB1308954A - Air volume control devices - Google Patents

Air volume control devices

Info

Publication number
GB1308954A
GB1308954A GB1259370A GB1259370A GB1308954A GB 1308954 A GB1308954 A GB 1308954A GB 1259370 A GB1259370 A GB 1259370A GB 1259370 A GB1259370 A GB 1259370A GB 1308954 A GB1308954 A GB 1308954A
Authority
GB
United Kingdom
Prior art keywords
spring
flap
volume control
air volume
frame
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
GB1259370A
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.)
Novenco Building and Industry AS
Original Assignee
Nordisk Ventilator Co
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 Nordisk Ventilator Co filed Critical Nordisk Ventilator Co
Publication of GB1308954A publication Critical patent/GB1308954A/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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Flow Control Members (AREA)

Abstract

1308954 Valves NORDISK VENTILATOR CO AS 16 March 1970 [11 April 1969] 12593/70 Heading F2V [Also in Division F4] An air volume control device for maintaining constant an air flow volume per unit of time independently of the difference in air pressure between an inlet 2 and outlet 3 of the device comprises a pivoted flap 4 and a cam 8 fixed to the pivot pin 5 of the flap and connected to a spring 11 by a cord 10, whereby the torques exerted on the pin 5 by the air pressure and spring 11 are equal and opposite in any adjusted position of the flap 4. Two springs 11 and cams 8 may be provided, one pair at each end of the flap. A screw 13 is threaded into the spring 11, and a nut 14 held against a frame 12 permits adjustment of the effective length of the spring. The or each frame 12 may be adjustable to render the corresponding spring active or inactive, and may be moved to an active position by an electromagnet.
GB1259370A 1969-04-11 1970-03-16 Air volume control devices Expired GB1308954A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK201169AA DK126215B (en) 1969-04-11 1969-04-11 Airflow regulator.

Publications (1)

Publication Number Publication Date
GB1308954A true GB1308954A (en) 1973-03-07

Family

ID=8109450

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1259370A Expired GB1308954A (en) 1969-04-11 1970-03-16 Air volume control devices

Country Status (4)

Country Link
DK (1) DK126215B (en)
GB (1) GB1308954A (en)
NL (1) NL7004542A (en)
SE (1) SE349857B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2124738A (en) * 1982-07-26 1984-02-22 Krantz H Gmbh & Co Volume flow or pressure regulator
US6328062B1 (en) 1999-01-13 2001-12-11 Baker Hughes Incorporated Torsion spring connections for downhole flapper
US6877564B2 (en) 2002-09-30 2005-04-12 Baker Hughes Incorporated Flapper closure mechanism
EP1318357A3 (en) * 2001-12-04 2005-06-08 Emil Siegwart Flow rate controller
US6957703B2 (en) 2001-11-30 2005-10-25 Baker Hughes Incorporated Closure mechanism with integrated actuator for subsurface valves

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2124738A (en) * 1982-07-26 1984-02-22 Krantz H Gmbh & Co Volume flow or pressure regulator
US6328062B1 (en) 1999-01-13 2001-12-11 Baker Hughes Incorporated Torsion spring connections for downhole flapper
GB2345742B (en) * 1999-01-13 2003-08-27 Baker Hughes Inc Torsion spring connections for a downhole flapper
US6957703B2 (en) 2001-11-30 2005-10-25 Baker Hughes Incorporated Closure mechanism with integrated actuator for subsurface valves
EP1318357A3 (en) * 2001-12-04 2005-06-08 Emil Siegwart Flow rate controller
US6877564B2 (en) 2002-09-30 2005-04-12 Baker Hughes Incorporated Flapper closure mechanism

Also Published As

Publication number Publication date
DK126215B (en) 1973-06-18
DE2011696B2 (en) 1972-09-07
SE349857B (en) 1972-10-09
NL7004542A (en) 1970-10-13
DE2011696A1 (en) 1971-02-18

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Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed