EP0685691A2 - Volet unidirectionnel avec basses pertes de pression pour dispositif de ventilation en général - Google Patents

Volet unidirectionnel avec basses pertes de pression pour dispositif de ventilation en général Download PDF

Info

Publication number
EP0685691A2
EP0685691A2 EP95107802A EP95107802A EP0685691A2 EP 0685691 A2 EP0685691 A2 EP 0685691A2 EP 95107802 A EP95107802 A EP 95107802A EP 95107802 A EP95107802 A EP 95107802A EP 0685691 A2 EP0685691 A2 EP 0685691A2
Authority
EP
European Patent Office
Prior art keywords
membrane
way shutter
shutter according
way
pressure loss
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.)
Withdrawn
Application number
EP95107802A
Other languages
German (de)
English (en)
Other versions
EP0685691A3 (fr
Inventor
Angelo Ghitti
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.)
VORTICE ELETTROSOCIALI SpA
Original Assignee
VORTICE ELETTROSOCIALI SpA
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 VORTICE ELETTROSOCIALI SpA filed Critical VORTICE ELETTROSOCIALI SpA
Publication of EP0685691A2 publication Critical patent/EP0685691A2/fr
Publication of EP0685691A3 publication Critical patent/EP0685691A3/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • 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
    • F24F13/1413—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre using more than one tilting member, e.g. with several pivoting blades

Definitions

  • the present invention relates to a one-way shutter with low pressure loss for ventilation devices in general.
  • These shutters are normally constituted by small plates that resume the closed position by gravity or are kept closed by elastic return elements.
  • a principal aim of the invention is indeed to eliminate the drawbacks described above by providing a one-way shutter with low pressure loss for ventilation devices in general structured so that the force required to open the shutter is extremely small, since the only contrasting force is the flexibility of the material being used.
  • a particular object of the invention is to provide a one-way shutter which is made of deformable plastics and accordingly has parts that can appropriately undergo deformation with respect to the flat inactive configuration if upstream pressure occurs, thus allowing better air flow.
  • Another object of the present invention is to provide a one-way shutter that, by virtue of its particular constructive characteristics, is capable of giving the greatest assurances of reliability and safety in use.
  • Another object of the present invention is to provide a one-way shutter that can be easily obtained starting from commonly commercially available elements and materials and is furthermore competitive from a merely economical point of view.
  • a one-way shutter with low pressure loss for ventilation devices in general, characterized in that it comprises, on the outlet that discharges the air stream generated by the ventilation device, a membrane made of flexible material that is supported in a median portion by a cross-member arranged substantially vertically, and rests perimetrically on an abutment edge formed by said discharge outlet when the ventilation device is inactive.
  • the one-way shutter with low pressure loss for ventilation devices in general comprises a membrane 1 placed on the outlet 2 for discharging the air stream generated by a ventilation device 3.
  • the outlet 2 which preferably but not necessarily has a circular cross-section, forms a spider 5 that acts as a support for the membrane and prevents the elastic lips of the membrane 1 from flexing inwards and from possibly jamming when the ventilation device is off and in the case of counterpressure from the outside of the device towards the inside.
  • the spider 5 furthermore facilitates better peripheral tightness of the membrane 1 against the reverse flow of air by adequately supporting said membrane.
  • the membrane 1 comprises a layer of flexible material, such as silicone rubber, having a substantially circular shape and forming a diametrical central portion 10 in which a membrane supporting cross-member 11 engages.
  • the membrane has through holes 12 in which pins 13 are inserted; said pins protrude from the spider arms and are adapted to act as a snap-together coupling element for the cross-member 11.
  • the cross-member 11 must be arranged substantially vertically, and for this purpose, if the ventilation device 3 is mountable with different orientations, the outlet is rotatable so as to arrange the cross-member vertically.
  • the cross-member in practice divides the membrane into two substantially semicircular flaps having ridges 20 on the downstream face, relative to the direction of the flow; said ridges cause a limited stiffening of the membrane face, so as to provide flaps that predominantly maintain a flat configuration.
  • the ridges 20 can be replaced with metal laminae molded in place in the elastic material.
  • the membrane is arranged perimetrically in abutment against an abutment edge 30 formed by the outlet 2, on which the peripheral region of the membrane rests when the ventilation device is not running.
  • the delivery air stream causes the flaps to rotate about the axis formed in practice by the cross-member, folding the flaps towards the diametrical position and forming an angle therebetween that narrows as the pressure/flow-rate of the generated air stream increases, thus allowing better air flow.
  • the materials employed may be any according to the requirements.

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)
  • Ventilation (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
EP95107802A 1994-06-02 1995-05-22 Volet unidirectionnel avec basses pertes de pression pour dispositif de ventilation en général. Withdrawn EP0685691A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI940393 IT233463Y1 (it) 1994-06-02 1994-06-02 Serranda di non ritorno a bassa perdita di carico per apparecchi di ventilazione in genere
ITMI940393U 1994-06-02

Publications (2)

Publication Number Publication Date
EP0685691A2 true EP0685691A2 (fr) 1995-12-06
EP0685691A3 EP0685691A3 (fr) 1997-02-19

Family

ID=11368066

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95107802A Withdrawn EP0685691A3 (fr) 1994-06-02 1995-05-22 Volet unidirectionnel avec basses pertes de pression pour dispositif de ventilation en général.

Country Status (2)

Country Link
EP (1) EP0685691A3 (fr)
IT (1) IT233463Y1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19961949C1 (de) * 1999-12-22 2001-03-22 Emil Siegwart Absperrklappe für eine Luftleitung und Verfahren zu ihrer Herstellung
EP1416204A1 (fr) * 2002-10-31 2004-05-06 Robert Bosch Gmbh Clapet de non retour
FR2847661A1 (fr) * 2002-11-25 2004-05-28 Invent Or Bouche d'extraction de gaz a membrane flexible de regulation
WO2005061934A1 (fr) * 2003-12-24 2005-07-07 Tüm Plastik Ve Makine Kalip Sanayi Ve Ticaret Limited Sirketi Clapet de non-retour
EP1835239A2 (fr) * 2006-03-15 2007-09-19 MAICO ELEKTROAPPARATE-FABRIK GmbH Dispositif de clapet de recul
DE102012205984A1 (de) * 2012-04-12 2013-10-17 Siemens Aktiengesellschaft Verschlussklappe
WO2022195608A1 (fr) * 2021-03-17 2022-09-22 Stopak India Pvt. Ltd. Soupape

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1438161A (en) * 1919-07-28 1922-12-05 Goodyear Tire & Rubber Valve gasket
US2800920A (en) * 1952-11-20 1957-07-30 Techno Corp Check valve
US3831628A (en) * 1973-03-13 1974-08-27 E Kintner Check valve
DE3720821A1 (de) * 1987-06-24 1989-01-05 Schmitz & Schulte Gmbh & Co Kg Rueckschlagklappe

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19961949C1 (de) * 1999-12-22 2001-03-22 Emil Siegwart Absperrklappe für eine Luftleitung und Verfahren zu ihrer Herstellung
EP1416204A1 (fr) * 2002-10-31 2004-05-06 Robert Bosch Gmbh Clapet de non retour
FR2847661A1 (fr) * 2002-11-25 2004-05-28 Invent Or Bouche d'extraction de gaz a membrane flexible de regulation
WO2005061934A1 (fr) * 2003-12-24 2005-07-07 Tüm Plastik Ve Makine Kalip Sanayi Ve Ticaret Limited Sirketi Clapet de non-retour
EP1835239A2 (fr) * 2006-03-15 2007-09-19 MAICO ELEKTROAPPARATE-FABRIK GmbH Dispositif de clapet de recul
EP1835239A3 (fr) * 2006-03-15 2009-10-28 MAICO ELEKTROAPPARATE-FABRIK GmbH Dispositif de clapet de recul
DE102012205984A1 (de) * 2012-04-12 2013-10-17 Siemens Aktiengesellschaft Verschlussklappe
WO2022195608A1 (fr) * 2021-03-17 2022-09-22 Stopak India Pvt. Ltd. Soupape

Also Published As

Publication number Publication date
ITMI940393U1 (it) 1995-12-02
ITMI940393V0 (it) 1994-06-02
EP0685691A3 (fr) 1997-02-19
IT233463Y1 (it) 2000-01-28

Similar Documents

Publication Publication Date Title
EP1747393B1 (fr) Soupape en parapluie, bidirectionnelle, inversee, combinee
EP0452045A1 (fr) Soupape à bec de canard, normalement fermée
US8328609B2 (en) Ventilation assembly for the pressure relief of the interior of an automobile
US6213408B1 (en) Flow regulator and corresponding method with pressure responsive flow regulation
CA1074660A (fr) Clapet anti-retour equilibreur
EP0182045A1 (fr) Soupape de retenue à basse pression avec un disque double
US6010113A (en) Damper with fanning blades
EP0934757A2 (fr) Soupape de retenue
US6652375B2 (en) Air-conditioning register and boot assembly
US6679290B2 (en) Swing check valve
EP0685691A2 (fr) Volet unidirectionnel avec basses pertes de pression pour dispositif de ventilation en général
JPH05280649A (ja) 自動車の客室の換気に用いられるチョウ型弁
US6357473B1 (en) One way anti-backflow valve
EP0647190A1 (fr) Clapet d'aeration unidirectionnel
MY111442A (en) Centrifugal seal assembly
US6837265B2 (en) One way anti-back flow valve
JP2005132359A (ja) 車輛換気用逆止弁
DK1500853T3 (da) Tætning med variabel inderdiameter
JP5510551B2 (ja) 順止バルブ、燃料電池システム
US20090028689A1 (en) Linear fan
WO2020184419A1 (fr) Émetteur et tube d'irrigation goutte à goutte
US5345969A (en) Seal in high pressure pneumatic booster valve
CN211461775U (zh) 一种防回流阀
US4179095A (en) Pneumatically operated air lock for air ducts, particularly for air conditioning plants
WO2020007973A1 (fr) Système de fluide

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): BE CH DE FR IT LI LU NL

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): BE CH DE FR IT LI LU NL

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19970416