GB1445221A - Ventilation device - Google Patents

Ventilation device

Info

Publication number
GB1445221A
GB1445221A GB877474A GB877474A GB1445221A GB 1445221 A GB1445221 A GB 1445221A GB 877474 A GB877474 A GB 877474A GB 877474 A GB877474 A GB 877474A GB 1445221 A GB1445221 A GB 1445221A
Authority
GB
United Kingdom
Prior art keywords
flap
air
duet
ducts
enclosure
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
GB877474A
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.)
INST PENTRU CREATIE STINTIFIC
Original Assignee
INST PENTRU CREATIE STINTIFIC
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
Priority claimed from RO7434773A external-priority patent/RO56670A2/ro
Priority claimed from RO75160A external-priority patent/RO56671A3/ro
Application filed by INST PENTRU CREATIE STINTIFIC filed Critical INST PENTRU CREATIE STINTIFIC
Publication of GB1445221A publication Critical patent/GB1445221A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/14—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid
    • F04F5/16—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
    • F04F5/48—Control
    • 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
    • F24F11/745—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 the air flow rate increasing with an increase of air-current or wind pressure
    • 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
    • F24F13/26—Arrangements for air-circulation by means of induction, e.g. by fluid coupling or thermal effect
    • 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
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • F24F7/065—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit fan combined with single duct; mounting arrangements of a fan in a duct

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Nozzles (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Jet Pumps And Other Pumps (AREA)

Abstract

1445221 Valves INST PENTRU CREATIE STIINTFICA SI TEHNICA 27 Feb 1974 [2 April 1973 18 June 1973] 8774/74 Heading F2V [Also in Divisions F4 and F1] A double stage ejector ventilating device for exhausting air from an enclosure comprises first and second coaxial ducts 1, 3 defining secondary air inlets 4, 10, a nozzle 2 within duet 1 supplied in use with compressed steam, air or liquid via a control valve 15 actuatable by sensors 16, 17 responsive respectively to pollution and excessive temperature of the air within the enclosure, and a fixed grid 11 or a pivoted flap 18 at the downstream end of duet 3. The ducts 1, 3 are of square cross-section, are lined with sound absorbing panels 12 made of mineral wool and are mounted by extensible and movable rods 14. A screen 5 of sound insulating material is provided at the inlet 4. The flap 18 is mounted on a pin 20, carries a counterweight 22 and is opened by the pressure of airflow through the duct 3. Fins 24 are mounted on the flap 18 to limit the opening movement of the flap by engagement with a frame 21.
GB877474A 1973-04-02 1974-02-27 Ventilation device Expired GB1445221A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RO7434773A RO56670A2 (en) 1973-04-02 1973-04-02
RO75160A RO56671A3 (en) 1973-06-18 1973-06-18

Publications (1)

Publication Number Publication Date
GB1445221A true GB1445221A (en) 1976-08-04

Family

ID=26653517

Family Applications (1)

Application Number Title Priority Date Filing Date
GB877474A Expired GB1445221A (en) 1973-04-02 1974-02-27 Ventilation device

Country Status (9)

Country Link
JP (1) JPS49128535A (en)
AT (1) AT332600B (en)
DD (1) DD110548A5 (en)
DE (1) DE2410845A1 (en)
FR (1) FR2257873B1 (en)
GB (1) GB1445221A (en)
IL (1) IL44419A (en)
IT (1) IT1009690B (en)
NL (1) NL7404197A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2424061A (en) * 2005-03-07 2006-09-13 John Richard Coxon A ventilation device
US20150044031A1 (en) * 2013-08-06 2015-02-12 General Electric Company Air disruption system for an enclosure

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5280334A (en) * 1975-12-27 1977-07-06 Mitsui Petrochem Ind Ltd Method of adhering polyolefin and polar substrate
US4281592A (en) * 1979-08-06 1981-08-04 Barber-Colman Company Double induction unit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2424061A (en) * 2005-03-07 2006-09-13 John Richard Coxon A ventilation device
US20150044031A1 (en) * 2013-08-06 2015-02-12 General Electric Company Air disruption system for an enclosure
US9593862B2 (en) * 2013-08-06 2017-03-14 General Electric Company Air disruption system for an enclosure

Also Published As

Publication number Publication date
JPS49128535A (en) 1974-12-09
NL7404197A (en) 1974-10-04
IL44419A0 (en) 1974-06-30
DD110548A5 (en) 1974-12-20
DE2410845A1 (en) 1974-10-31
ATA18574A (en) 1976-01-15
IL44419A (en) 1977-10-31
FR2257873B1 (en) 1979-01-26
IT1009690B (en) 1976-12-20
FR2257873A1 (en) 1975-08-08
AT332600B (en) 1976-10-11

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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