GB740099A - Device for maintaining a constant static pressure in a duct for flowing gaseous medium - Google Patents

Device for maintaining a constant static pressure in a duct for flowing gaseous medium

Info

Publication number
GB740099A
GB740099A GB3917/54A GB391754A GB740099A GB 740099 A GB740099 A GB 740099A GB 3917/54 A GB3917/54 A GB 3917/54A GB 391754 A GB391754 A GB 391754A GB 740099 A GB740099 A GB 740099A
Authority
GB
United Kingdom
Prior art keywords
spindle
duct
lever
maintaining
static pressure
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
GB3917/54A
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.)
Svenska Flaktfabriken AB
Original Assignee
Svenska Flaktfabriken 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 Svenska Flaktfabriken AB filed Critical Svenska Flaktfabriken AB
Publication of GB740099A publication Critical patent/GB740099A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D7/00—Control of flow
    • G05D7/01—Control of flow without auxiliary power
    • G05D7/0173—Control of flow without auxiliary power using pivoting sensing element acting as a valve mounted within the flow-path
    • 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
    • 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
    • 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
    • Y10T137/7787—Expansible chamber subject to differential pressures
    • Y10T137/7788—Pressures across fixed choke
    • 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
    • Y10T137/7793—With opening bias [e.g., pressure regulator]
    • Y10T137/7805—Through external pipe
    • 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
    • Y10T137/7793—With opening bias [e.g., pressure regulator]
    • Y10T137/7831—With mechanical movement between actuator and valve
    • 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
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • Y10T74/18176—Crank, pitman, lever, and slide

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Automation & Control Theory (AREA)
  • General Physics & Mathematics (AREA)
  • Air-Flow Control Members (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Measuring Fluid Pressure (AREA)
  • Measuring Volume Flow (AREA)

Abstract

740,099. Valves. AKTIEBOLAGET SVENSKA FLAKTFABRIKEN. Feb. 10, 1954 [Feb. 17, 1953], No. 3917/54. Class 135. A valve for maintaining a constant static pressure in a duct such as a ventilating duct comprises a curved valve plate 8 carried by arms 10, 12 fixed to a spindle 32 which is angularly movable by a flexible diaphragm 41 acting through a rod 24 guided by rollers 36a, 36b, a lever 17 pivoted at 16, and a link 22 connected to a lever 26 which is adjustably clamped to the spindle. Chambers 42, 45 on either side of the diaphragm are connected to two points in the system, e.g. to an air distributing duct and to a place to be air-conditioned. The pressure difference across the diaphragm is balanced by a spring 19 engageable with any one of a series of adjustment holes 20 in the lever 17. Alternatively, a weight may be used. An adjustable counterweight 27 is carried by an arm 29 clamped to the spindle 32. The spindle also carries a disc 25 which co-operates with a fixed pointer whereby the degree of opening of the valve can be observed through a window.
GB3917/54A 1953-02-17 1954-02-10 Device for maintaining a constant static pressure in a duct for flowing gaseous medium Expired GB740099A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE2888948X 1953-02-17

Publications (1)

Publication Number Publication Date
GB740099A true GB740099A (en) 1955-11-09

Family

ID=20427688

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3917/54A Expired GB740099A (en) 1953-02-17 1954-02-10 Device for maintaining a constant static pressure in a duct for flowing gaseous medium

Country Status (5)

Country Link
US (1) US2888948A (en)
CH (1) CH320059A (en)
FR (1) FR1097676A (en)
GB (1) GB740099A (en)
NL (1) NL88155C (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2991937A (en) * 1959-01-20 1961-07-11 Trane Co Air blender
ES264920A1 (en) * 1960-02-19 1961-07-16 Svenska Fl Ktfabriken A B Pressure regulator
US3191615A (en) * 1961-06-09 1965-06-29 Allied Thermal Corp Automatic fluid controller
SE358296B (en) * 1970-04-13 1973-07-30 Siemens Elema Ab
US5450873A (en) * 1988-04-07 1995-09-19 Palmer; David W. System for controlling flow through a process region
ATE116748T1 (en) * 1990-03-30 1995-01-15 Koppens Automatic Fabrieken Bv MULTIVARIABLE REGULATOR WITH AT LEAST FOUR MECHANICAL INTRODUCTIONS AND SYSTEM EQUIPPED WITH THE SAME.
US5509449A (en) * 1995-04-03 1996-04-23 The United States Of America As Represented By The Secretary Of Agriculture Control of fluids

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US427516A (en) * 1890-05-06 Bocker
US190442A (en) * 1877-05-08 Improvement in automatic water-pipe pressure cut-offs
US733757A (en) * 1901-08-07 1903-07-14 Vincent P Travers Jr Valve-governing mechanism.
US812626A (en) * 1904-12-13 1906-02-13 William L Wilson Power-transmitting apparatus.
US991641A (en) * 1909-05-12 1911-05-09 Pierre Plantinga Device for controlling fluids.
US1490654A (en) * 1920-04-24 1924-04-15 Thomas B Wylie Maximum-demand fluid regulator
US1390521A (en) * 1921-02-07 1921-09-13 Leo F Fay Washing-machine
US1656184A (en) * 1924-12-20 1928-01-17 Karl A Enz Valve
US1673041A (en) * 1926-10-29 1928-06-12 Builders Iron Foundry Rate of flow controller
US2242667A (en) * 1940-05-22 1941-05-20 Durabilt Steel Locker Co Automatic air control for forced draft firing
US2357341A (en) * 1940-07-10 1944-09-05 Builders Iron Foundry Flow controller

Also Published As

Publication number Publication date
US2888948A (en) 1959-06-02
CH320059A (en) 1957-03-15
NL88155C (en) 1900-01-01
FR1097676A (en) 1955-07-08

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