US20140038509A1 - Ventilation unit - Google Patents

Ventilation unit Download PDF

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Publication number
US20140038509A1
US20140038509A1 US13/957,646 US201313957646A US2014038509A1 US 20140038509 A1 US20140038509 A1 US 20140038509A1 US 201313957646 A US201313957646 A US 201313957646A US 2014038509 A1 US2014038509 A1 US 2014038509A1
Authority
US
United States
Prior art keywords
air
inlet opening
air inlet
ventilation unit
unit
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.)
Abandoned
Application number
US13/957,646
Inventor
Roger Madorell Costa
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.)
Soler and Palau Research SL
Original Assignee
Soler and Palau Research SL
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 Soler and Palau Research SL filed Critical Soler and Palau Research SL
Assigned to SOLER & PALAU RESEARCH, S.L. reassignment SOLER & PALAU RESEARCH, S.L. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: Madorell Costa, Roger
Publication of US20140038509A1 publication Critical patent/US20140038509A1/en
Abandoned legal-status Critical Current

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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
    • F24F7/007—Ventilation with forced flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/16—Centrifugal pumps for displacing without appreciable compression
    • F04D17/165—Axial entry and discharge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/663—Sound attenuation
    • F04D29/664—Sound attenuation by means of sound absorbing material
    • 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
    • F24F13/02—Ducting arrangements
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • 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
    • F24F13/24—Means for preventing or suppressing noise
    • 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
    • F24F13/24—Means for preventing or suppressing noise
    • F24F2013/242—Sound-absorbing material

Definitions

  • the present invention relates to air driving means for driving the air in ventilation systems, proposing a ventilation unit intended for being incorporated in industrial ventilation systems, with structural features determining an advantageous embodiment for the silent operation of said unit.
  • Axial tubular fans which are intercalated in the air circulation ducts are known for driving the air in ventilation systems, the body of these fans being formed by a cylindrical casing in which an air driving element and the operating elements for the operation thereof are housed, said casing being coupled at its ends to an air circulation duct.
  • the intercalated arrangement of the assembly of these fans in the air ducts favors the transmission of operating noise through said air circulation ducts, to prevent that transmission of fan operating noise there are conventionally provided silencers which are incorporated on the sections of the air duct to which the fan is coupled, or they are intercalated between said sections of the air duct and the fan, before and after same, which causes a considerable longitudinal prolongation of the fan, limiting the assembly possibilities of the system of application, said prolongation further being determined by the diameter of the air duct in which the fan is arranged, since longer silencers are required the greater the diameter of the air duct.
  • the ventilation units used in industrial ventilation systems have a structural formation which comprises a body-unit provided with a direct air inlet opening at one end and an air outlet opening at the other end, including therein an air driving propeller facing the air inlet opening; the adaptation of solutions which allow achieving an effective soundproofing with small silencers, given the large diameter of the air ducts to which said units are normally coupled during application, and which require oversized silencers with conventional solutions of placing silencers on the air ducts being of particular interest in these ventilation units.
  • the invention proposes a ventilation unit which is made with a structural formation that allows achieving a very effective soundproofing effect with a small silencer regardless of the diameter of the air ducts to which the unit is coupled in the systems of application.
  • This ventilation unit object of the invention comprises a structural assembly formed by a body-unit establishing an air inlet opening and an air outlet opening at the ends, respectively, internally housing an air driving propeller arranged in the air inlet opening, said air inlet opening being shifted outwards, there being included between the air inlet opening and the air driving propeller a tubular silencer, which establishes an air passage conduit having a smaller diameter than the air inlet mouth.
  • a suitably soundproofed ventilation unit with very minimal increase in the longitudinal dimension is thus obtained, since the silencer which is arranged between the air inlet month and the air driving propeller has a diameter smaller than the external air ducts to which the ventilation unit is coupled, therefore requiring a shorter silencer compared with the silencers arranged between the openings of the ventilation unit and the external air ducts in conventional solutions.
  • the ventilation unit offers advantageous conditions for assembly in the systems of application since the soundproofing minimally increases the longitudinal dimension, allowing a more versatile assembly of the ventilation unit in the systems of application.
  • said ventilation unit object of the invention has very advantageous functional features, acquiring its own identity and preferred character with respect to conventional ventilation units having the same application.
  • FIG. 1 shows an exploded perspective view of a ventilation unit made according to the invention.
  • FIG. 2 is a schematic longitudinal section view of a ventilation unit according to the invention, air circulation through the unit being indicated with lines.
  • the object of the invention relates to a ventilation unit of the types used in industrial ventilation systems, comprising a body-unit ( 1 ) inside which there is housed an air driving propeller ( 2 ) arranged in an air inlet opening ( 3 ) defined at one end of the mentioned body-unit ( 1 ), whereas an air outlet opening ( 4 ) is defined at the other end, both openings ( 3 and 4 ) establishing respective couplings for attachment to respective external air ducts.
  • the air inlet opening ( 3 ) is shifted outwards with respect to the body-unit ( 1 ), there being included between the air inlet opening and the air driving propeller ( 2 ) a tubular silencer ( 5 ), which establishes an air passage conduit having a smaller diameter than the air inlet opening ( 3 ) between the mentioned air inlet opening ( 3 ) and said air driving propeller ( 2 ).
  • the silencer ( 5 ) is thus included integrated in the ventilation unit itself in an area having a smaller diameter than the couplings to the external air ducts of application, so said silencer ( 5 ) must be shorter than the conventional silencers which are arranged in the mentioned external air ducts for coupling the ventilation units in the systems of application, such that with this solution of the invention, in the assembly of the ventilation unit the arrangement for soundproofing the operation of the ventilation unit only involves a minimum increase in the length of the ventilation unit, allowing better conditions and greater versatility for assembly in the systems of application.

Abstract

The present invention relates to a ventilation unit formed by a body-unit provided with an air inlet opening at one end and with an air outlet opening at the other end, an air driving propeller being located therein, there being included between the air driving propeller and the air inlet opening, which is shifted outwards, a tubular silencer, which establishes an air passage conduit having a smaller diameter than the air inlet opening.

Description

    FIELD OF THE ART
  • The present invention relates to air driving means for driving the air in ventilation systems, proposing a ventilation unit intended for being incorporated in industrial ventilation systems, with structural features determining an advantageous embodiment for the silent operation of said unit.
    • STATE OF ART
  • It is important to prevent the noise produced by the operating fans which drive the air in both domestic and industrial ventilation systems from propagating through the structures supporting the system, which is conventionally solved by providing the fans with soundproofing solutions.
  • Axial tubular fans which are intercalated in the air circulation ducts are known for driving the air in ventilation systems, the body of these fans being formed by a cylindrical casing in which an air driving element and the operating elements for the operation thereof are housed, said casing being coupled at its ends to an air circulation duct.
  • The intercalated arrangement of the assembly of these fans in the air ducts favors the transmission of operating noise through said air circulation ducts, to prevent that transmission of fan operating noise there are conventionally provided silencers which are incorporated on the sections of the air duct to which the fan is coupled, or they are intercalated between said sections of the air duct and the fan, before and after same, which causes a considerable longitudinal prolongation of the fan, limiting the assembly possibilities of the system of application, said prolongation further being determined by the diameter of the air duct in which the fan is arranged, since longer silencers are required the greater the diameter of the air duct.
  • For helico centrifugal fans which are intercalated in air ducts, a solution has been developed to that effect according to Spanish patent application P 201100220 belonging to the same patentee as the present invention, by means of structuring the fan with an air passage formed by a convergence cone and a divergence cone, before an air driving propeller, a silencer, which establishes an intermediate conduit between the convergence cone and the divergence cone, being incorporated on that air passage between both cones, a short silencer being necessary with this solution to achieve effective soundproofing.
  • However, the ventilation units used in industrial ventilation systems have a structural formation which comprises a body-unit provided with a direct air inlet opening at one end and an air outlet opening at the other end, including therein an air driving propeller facing the air inlet opening; the adaptation of solutions which allow achieving an effective soundproofing with small silencers, given the large diameter of the air ducts to which said units are normally coupled during application, and which require oversized silencers with conventional solutions of placing silencers on the air ducts being of particular interest in these ventilation units.
    • OBJECT OIL THE INVENTION
  • The invention proposes a ventilation unit which is made with a structural formation that allows achieving a very effective soundproofing effect with a small silencer regardless of the diameter of the air ducts to which the unit is coupled in the systems of application.
  • This ventilation unit object of the invention comprises a structural assembly formed by a body-unit establishing an air inlet opening and an air outlet opening at the ends, respectively, internally housing an air driving propeller arranged in the air inlet opening, said air inlet opening being shifted outwards, there being included between the air inlet opening and the air driving propeller a tubular silencer, which establishes an air passage conduit having a smaller diameter than the air inlet mouth.
  • A suitably soundproofed ventilation unit with very minimal increase in the longitudinal dimension is thus obtained, since the silencer which is arranged between the air inlet month and the air driving propeller has a diameter smaller than the external air ducts to which the ventilation unit is coupled, therefore requiring a shorter silencer compared with the silencers arranged between the openings of the ventilation unit and the external air ducts in conventional solutions.
  • With this solution of the invention, the ventilation unit offers advantageous conditions for assembly in the systems of application since the soundproofing minimally increases the longitudinal dimension, allowing a more versatile assembly of the ventilation unit in the systems of application.
  • Therefore, said ventilation unit object of the invention has very advantageous functional features, acquiring its own identity and preferred character with respect to conventional ventilation units having the same application.
    • DESCRIPTION OF THE DRAWINGS
  • FIG. 1 shows an exploded perspective view of a ventilation unit made according to the invention.
  • FIG. 2 is a schematic longitudinal section view of a ventilation unit according to the invention, air circulation through the unit being indicated with lines.
    •  DETAILED DESCRIPTION OF THE INVENTION
  • The object of the invention relates to a ventilation unit of the types used in industrial ventilation systems, comprising a body-unit (1) inside which there is housed an air driving propeller (2) arranged in an air inlet opening (3) defined at one end of the mentioned body-unit (1), whereas an air outlet opening (4) is defined at the other end, both openings (3 and 4) establishing respective couplings for attachment to respective external air ducts.
  • According to the invention, the air inlet opening (3) is shifted outwards with respect to the body-unit (1), there being included between the air inlet opening and the air driving propeller (2) a tubular silencer (5), which establishes an air passage conduit having a smaller diameter than the air inlet opening (3) between the mentioned air inlet opening (3) and said air driving propeller (2).
  • The silencer (5) is thus included integrated in the ventilation unit itself in an area having a smaller diameter than the couplings to the external air ducts of application, so said silencer (5) must be shorter than the conventional silencers which are arranged in the mentioned external air ducts for coupling the ventilation units in the systems of application, such that with this solution of the invention, in the assembly of the ventilation unit the arrangement for soundproofing the operation of the ventilation unit only involves a minimum increase in the length of the ventilation unit, allowing better conditions and greater versatility for assembly in the systems of application.

Claims (1)

1. A ventilation unit comprising a body-unit establishing an air inlet opening and an air outlet opening at the ends, respectively, an air driving propeller arranged in the air inlet opening (3) being located therein, wherein the air inlet opening is shifted outwards with respect to the body-unit, there being included between the air inlet opening and the air driving propeller a tubular silencer, which establishes an air passage conduit having a smaller diameter than the air inlet opening between said air inlet opening and said air driving propeller.
US13/957,646 2012-08-02 2013-08-02 Ventilation unit Abandoned US20140038509A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES201231260A ES2394332B1 (en) 2012-08-02 2012-08-02 VENTILATION BOX
ESP201231260 2012-08-02

Publications (1)

Publication Number Publication Date
US20140038509A1 true US20140038509A1 (en) 2014-02-06

Family

ID=47520445

Family Applications (1)

Application Number Title Priority Date Filing Date
US13/957,646 Abandoned US20140038509A1 (en) 2012-08-02 2013-08-02 Ventilation unit

Country Status (3)

Country Link
US (1) US20140038509A1 (en)
EP (1) EP2693135B1 (en)
ES (2) ES2394332B1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10443624B2 (en) * 2017-03-28 2019-10-15 Acoustiflo, Llc Modular fan unit apparatus and methods
CN113883712A (en) * 2021-09-29 2022-01-04 宁波市鸿福风机有限公司 High-efficient dysmorphism curved surface silencer that commonality is high
RU2767859C1 (en) * 2019-02-06 2022-03-22 Солер Энд Палау Рисёрч, С.Л. Exhaust unit for installation in the duct
GB2605574A (en) * 2021-03-30 2022-10-12 Elta Group Ltd Air Pump, Modular Positive Input Ventilation Apparatus and Positive Input Ventilation Apparatus

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014154251A1 (en) * 2013-03-26 2014-10-02 Arcelik Anonim Sirketi Heat pump laundry dryer with noise attenuation structure
PL2827076T3 (en) * 2013-07-16 2019-02-28 Trox Gmbh Ventilation component
CN112177985B (en) * 2020-09-29 2021-07-02 国电电力湖南郴州风电开发有限公司 Mounting structure of fan for wind power generation

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US2415621A (en) * 1944-10-20 1947-02-11 Solar Aircraft Co Fan
US3346174A (en) * 1966-07-05 1967-10-10 Trane Co Compact axial flow fan
US3540547A (en) * 1968-12-31 1970-11-17 Charles Waddell Coward Jr Acoustical systems for air moving devices
GB1511625A (en) * 1975-05-14 1978-05-24 Vasiljevic C Muffled axial-flow ventilator
US4358139A (en) * 1980-12-03 1982-11-09 Peabody Abc Corporation Coupling for mine ventilation conduits
JPS5894000A (en) * 1981-11-30 1983-06-03 Mitsubishi Electric Corp Silencer device for blower's suction side
US4465308A (en) * 1981-11-05 1984-08-14 Tenneco Inc. Connection flange for tubular members
US4508486A (en) * 1982-05-28 1985-04-02 Peabody Abc Corporation Ventilation fan with noise-attenuating housing
US4692091A (en) * 1985-09-23 1987-09-08 Ritenour Paul E Low noise fan
US5473123A (en) * 1993-04-05 1995-12-05 Dipti Kr. Datta Air handling structure for fan inlet and outlet
US5473124A (en) * 1994-01-31 1995-12-05 Dipti Datta Packless silencer
US5663535A (en) * 1995-08-28 1997-09-02 Venturedyne, Ltd. Sound attenuator for HVAC systems
US5728979A (en) * 1993-04-05 1998-03-17 Air Handling Engineering Ltd. Air handling structure for fan inlet and outlet
US5869792A (en) * 1995-12-04 1999-02-09 Vibron Limited Reactive acoustic silencer
US6267665B1 (en) * 2000-01-27 2001-07-31 Air Handling Engineering, Ltd. Column fan unit
US20010011007A1 (en) * 2000-01-27 2001-08-02 Salman Akhtar Column fan unit
JP2007212045A (en) * 2006-02-09 2007-08-23 Daikin Ind Ltd Outdoor unit for air-conditioner
US20080000617A1 (en) * 2006-06-30 2008-01-03 Alejandro CORTINA-CORDERO Climate-conditioning fan and coil apparatus
US20080152480A1 (en) * 2006-12-20 2008-06-26 Shizu Ishikawa Diagonal flow fan
US20080223652A1 (en) * 2007-03-16 2008-09-18 Alfred Theodor Dyck Single Duct Silencing Terminal Unit
US20100189547A1 (en) * 2006-11-02 2010-07-29 Panasonic Corporation Centrifugal Fan
US7878299B2 (en) * 2008-02-13 2011-02-01 Geyer Iii Robert E Silencer apparatus with disposable silencer cartridge unit
US20110061967A1 (en) * 2007-03-16 2011-03-17 E.H. Price Ltd. Sound attentuator
US7992904B2 (en) * 2007-06-06 2011-08-09 Ductmate Industries, Inc. Sealing mechanism for ductwork
US20110275302A1 (en) * 2008-10-24 2011-11-10 Mosen Limited Improved tunnel ventilation device
US20120051889A1 (en) * 2009-07-29 2012-03-01 Soler & Palau Research, S.L.U. Sound-proofed helicocentrifugal fan
EP2492515A2 (en) * 2011-02-28 2012-08-29 Soler & Palau Research, S.L. Helico centrifugal fan
EP2626644A1 (en) * 2012-02-07 2013-08-14 TROX GmbH Ventilation component comprising a channel-shaped housing with surrounding coverings

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* Cited by examiner, † Cited by third party
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US3750839A (en) * 1971-11-01 1973-08-07 Trane Co Air distribution apparatus
JPS51115351A (en) * 1975-04-02 1976-10-09 Zenken Setsubi Service Kk Silencer for air conditioner and its manufacturing process
JPS5924246B2 (en) * 1976-02-20 1984-06-08 株式会社 東洋空機製作所 Silencer
JP3942972B2 (en) * 2002-07-10 2007-07-11 松下エコシステムズ株式会社 Bathroom heating dryer
IT1403249B1 (en) * 2010-11-19 2013-10-17 Luve Spa MUFFLER DEVICE, PARTICULARLY FOR FANS OF AERO-EXCHANGER AND SIMILAR.

Patent Citations (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2415621A (en) * 1944-10-20 1947-02-11 Solar Aircraft Co Fan
US3346174A (en) * 1966-07-05 1967-10-10 Trane Co Compact axial flow fan
US3540547A (en) * 1968-12-31 1970-11-17 Charles Waddell Coward Jr Acoustical systems for air moving devices
GB1511625A (en) * 1975-05-14 1978-05-24 Vasiljevic C Muffled axial-flow ventilator
US4358139A (en) * 1980-12-03 1982-11-09 Peabody Abc Corporation Coupling for mine ventilation conduits
US4465308A (en) * 1981-11-05 1984-08-14 Tenneco Inc. Connection flange for tubular members
JPS5894000A (en) * 1981-11-30 1983-06-03 Mitsubishi Electric Corp Silencer device for blower's suction side
US4508486A (en) * 1982-05-28 1985-04-02 Peabody Abc Corporation Ventilation fan with noise-attenuating housing
US4692091A (en) * 1985-09-23 1987-09-08 Ritenour Paul E Low noise fan
US5473123A (en) * 1993-04-05 1995-12-05 Dipti Kr. Datta Air handling structure for fan inlet and outlet
US5728979A (en) * 1993-04-05 1998-03-17 Air Handling Engineering Ltd. Air handling structure for fan inlet and outlet
US5473124A (en) * 1994-01-31 1995-12-05 Dipti Datta Packless silencer
US5663535A (en) * 1995-08-28 1997-09-02 Venturedyne, Ltd. Sound attenuator for HVAC systems
US5869792A (en) * 1995-12-04 1999-02-09 Vibron Limited Reactive acoustic silencer
US6267665B1 (en) * 2000-01-27 2001-07-31 Air Handling Engineering, Ltd. Column fan unit
US20010011007A1 (en) * 2000-01-27 2001-08-02 Salman Akhtar Column fan unit
JP2007212045A (en) * 2006-02-09 2007-08-23 Daikin Ind Ltd Outdoor unit for air-conditioner
US20080000617A1 (en) * 2006-06-30 2008-01-03 Alejandro CORTINA-CORDERO Climate-conditioning fan and coil apparatus
US20100189547A1 (en) * 2006-11-02 2010-07-29 Panasonic Corporation Centrifugal Fan
US20080152480A1 (en) * 2006-12-20 2008-06-26 Shizu Ishikawa Diagonal flow fan
US20080223652A1 (en) * 2007-03-16 2008-09-18 Alfred Theodor Dyck Single Duct Silencing Terminal Unit
US20110061967A1 (en) * 2007-03-16 2011-03-17 E.H. Price Ltd. Sound attentuator
US7992904B2 (en) * 2007-06-06 2011-08-09 Ductmate Industries, Inc. Sealing mechanism for ductwork
US7878299B2 (en) * 2008-02-13 2011-02-01 Geyer Iii Robert E Silencer apparatus with disposable silencer cartridge unit
US20110275302A1 (en) * 2008-10-24 2011-11-10 Mosen Limited Improved tunnel ventilation device
US20120051889A1 (en) * 2009-07-29 2012-03-01 Soler & Palau Research, S.L.U. Sound-proofed helicocentrifugal fan
EP2492515A2 (en) * 2011-02-28 2012-08-29 Soler & Palau Research, S.L. Helico centrifugal fan
EP2626644A1 (en) * 2012-02-07 2013-08-14 TROX GmbH Ventilation component comprising a channel-shaped housing with surrounding coverings

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10443624B2 (en) * 2017-03-28 2019-10-15 Acoustiflo, Llc Modular fan unit apparatus and methods
RU2767859C1 (en) * 2019-02-06 2022-03-22 Солер Энд Палау Рисёрч, С.Л. Exhaust unit for installation in the duct
GB2605574A (en) * 2021-03-30 2022-10-12 Elta Group Ltd Air Pump, Modular Positive Input Ventilation Apparatus and Positive Input Ventilation Apparatus
CN113883712A (en) * 2021-09-29 2022-01-04 宁波市鸿福风机有限公司 High-efficient dysmorphism curved surface silencer that commonality is high

Also Published As

Publication number Publication date
ES2394332A1 (en) 2013-01-30
EP2693135B1 (en) 2018-11-07
ES2394332B1 (en) 2013-09-12
EP2693135A1 (en) 2014-02-05
ES2710365T3 (en) 2019-04-24

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Legal Events

Date Code Title Description
AS Assignment

Owner name: SOLER & PALAU RESEARCH, S.L., SPAIN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MADORELL COSTA, ROGER;REEL/FRAME:030931/0351

Effective date: 20130619

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION