WO2011034277A2 - Appareil de ventilation d'échange thermique - Google Patents

Appareil de ventilation d'échange thermique Download PDF

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Publication number
WO2011034277A2
WO2011034277A2 PCT/KR2010/004708 KR2010004708W WO2011034277A2 WO 2011034277 A2 WO2011034277 A2 WO 2011034277A2 KR 2010004708 W KR2010004708 W KR 2010004708W WO 2011034277 A2 WO2011034277 A2 WO 2011034277A2
Authority
WO
WIPO (PCT)
Prior art keywords
indoor
air
outdoor
covering
exhaust
Prior art date
Application number
PCT/KR2010/004708
Other languages
English (en)
Korean (ko)
Other versions
WO2011034277A3 (fr
Inventor
김희식
Original Assignee
주식회사 셀파씨엔씨
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 KR1020090087465A external-priority patent/KR100966916B1/ko
Priority claimed from KR1020090109929A external-priority patent/KR100974085B1/ko
Application filed by 주식회사 셀파씨엔씨 filed Critical 주식회사 셀파씨엔씨
Priority to JP2012529650A priority Critical patent/JP2013504744A/ja
Priority to US13/496,364 priority patent/US20120178355A1/en
Publication of WO2011034277A2 publication Critical patent/WO2011034277A2/fr
Publication of WO2011034277A3 publication Critical patent/WO2011034277A3/fr

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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
    • F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
    • F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
    • F24F12/006—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an air-to-air heat exchanger
    • 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
    • F24F13/28—Arrangement or mounting of filters
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/56—Heat recovery units

Definitions

  • the present invention relates to a total heat exchange ventilator, and more particularly to a total heat exchange ventilator that can increase the supply / exhaust efficiency by preventing the air flow lost during supply / exhaust.
  • Electrothermal exchange ventilation is used as part of the building's air conditioning system.In order to ventilate the building, indoor air is discharged to the outside and outdoor air is sucked into the room. It is a device that can be reduced.
  • the total heat exchange ventilator is equipped with a total heat exchange element, and a blower fan for intake and exhaust air, thereby allowing heat exchange between the indoor air and the outdoor air passing through the heat exchange element without mixing with each other.
  • the electrothermal exchange ventilation device may have inlet and exhaust ports respectively formed at the outdoor side and the indoor side, so that the outdoor air may be introduced into the indoor air and the indoor air may be discharged to the outdoor.
  • an embodiment of the present invention is to provide a total heat exchange ventilator having an internal structure that can improve the suction force in the total heat exchange ventilator.
  • an embodiment of the present invention aims to provide a total heat exchange ventilation apparatus having an air supply and exhaust duct formed integrally with the air supply duct and the exhaust duct.
  • a first blower fan is disposed in a body housing having an indoor intake port, an indoor exhaust port, an outdoor intake port, and an outdoor exhaust port, and a first flow path formed between the indoor intake port and the outdoor exhaust port inside the body housing.
  • a second blowing fan disposed in a second flow path formed between the outdoor intake port and the indoor exhaust port in the body housing, and a first area and a second area different from the first area.
  • the first flow path passes through the second flow path, and the second heat path passes through the second flow path, and an open one side part is connected to the suction part of the first blowing fan, and the open other side part is the rotary type.
  • a first covering connected to the first region through which the first flow path of the total heat exchange element passes, and having a cross-sectional area narrowed according to a flow direction of air in the first flow path;
  • a side portion having a cross-sectional area corresponding to the cross-sectional area of the other portion of the first covering and connected to the first region through which the first flow path of the rotary electrothermal exchange element passes, and the other open portion connected to the indoor intake port
  • a filter box having a cross-sectional area widened according to a flow direction of air in the first flow path, wherein the rotary electrothermal exchange element is disposed between the first covering and the filter box, and the first flow path is from indoor to outdoor. And a path passing sequentially through the indoor intake port, the filter box, the rotary electrothermal exchange element, the first covering, the first blowing fan, and the outdoor exhaust port.
  • the suction / discharge power can be improved by changing the internal structure of the electrothermal exchange ventilator.
  • FIG. 1 is an exploded perspective view of a total heat exchange ventilator according to an embodiment of the present invention.
  • (A)-(c) is a figure which shows the 1st covering, the filter box, and the 2nd covering used for the electrothermal exchange ventilation apparatus which concerns on other embodiment of this invention.
  • FIG. 3 is an exploded perspective view of a total heat exchange ventilator according to another embodiment of the present invention.
  • Figure 4 is a perspective view of the supply and exhaust duct according to an embodiment of the present invention.
  • 5A and 5B show an adapter part according to an embodiment of the present invention.
  • Figure 6 (a) schematically shows the adapter portion coupled to the supply and exhaust duct according to an embodiment of the present invention
  • Figure 6 (b) is an example of the internal structure of the adapter portion shown in Figure 6 (a) Schematically shows.
  • electrothermal exchange ventilator 101 supply and exhaust duct
  • purification filter 180 shield
  • the electrothermal heat exchange ventilation apparatus 100 includes a main body housing 110, a first blowing fan and a second blowing fan 121 and 122, a rotary electrothermal heat exchange element 130, and a first one. 1 may include a covering 140, a filter box 150, and a prefilter 153.
  • An indoor intake port, an indoor exhaust port, an outdoor intake port, and an outdoor exhaust port may be formed in the body housing 110.
  • the electrothermal heat exchange ventilation device may suck air in the room through an indoor air inlet formed in the body housing and discharge the air through the outdoor exhaust port.
  • outdoor air may be sucked through the outdoor intake port and discharged into the room through the indoor exhaust port.
  • the body housing 110 may be divided into an upper body housing 110a and a lower body housing 110b.
  • the upper body housing 110a may be disposed indoors and the lower body housing 110b may be disposed outdoor.
  • the indoor intake port and the indoor exhaust port may be formed at the upper body housing 110a, and the outdoor intake port and the outdoor exhaust port may be formed at the lower body housing 110b.
  • the indoor intake port 111 may be formed to face one side of the body housing, and the indoor exhaust port 112 may be formed to face the other side of the body housing.
  • One side and the other side of the body housing may be opposite directions.
  • the first flow path through which air flows between the indoor intake port 111 and the outdoor exhaust port 114 and the second flow path through which air flows between the outdoor intake port 113 and the indoor exhaust port 112 inside the body housing 110. Can be formed.
  • the first blowing fan 121 and the second blowing fan 122 may be disposed in a first flow path formed between the indoor intake port and the outdoor exhaust port and a second flow path formed between the outdoor intake port and the indoor exhaust port, respectively.
  • the first blower fan 121 may suck the air in the room through the indoor intake port 111 and the first flow path and discharge the air to the outdoor exhaust port 114.
  • the second blower fan 122 may suck outside air through the outdoor air intake port 113 and discharge the outside air to the second flow path and the indoor exhaust port 112.
  • the rotary heat exchange element 130 includes a first region and a second region different from the first region, wherein the first flow passage passes through the first region, and the second flow passage passes through the second region. Can be arranged.
  • the rotary electrothermal heat exchange element 130 having a disc shape is disposed at right angles to the direction in which air flows in the first and second oil passages, and the indoor intake port 111 is formed as a first region of the electrothermal heat exchange element. In the indoor air sucked in and passing through, the outdoor air sucked by the outdoor air intake port 113 may be passed to another area.
  • the rotary electrothermal heat exchange element 130 preserves the sensible and latent heat contained in the indoor air sucked through the indoor inlet 111 through the rotational movement, and sucks the stored sensible and latent heat through the outdoor inlet 113. Can be delivered to outdoor air. Since the sensible and latent heat of the indoor air is transferred to the air sucked outdoors by the electrothermal heat exchange element 130, the air discharged through the indoor exhaust port 112 is the sensible heat and the latent heat of the indoor air rather than the sensible and latent heat of the outdoor air. It may have a property close to latent heat.
  • the electrothermal exchange element 130 may be in the form of a flat disc.
  • the sucked outdoor air and indoor air may pass through the heat exchange element through the top and bottom surfaces of the disc-shaped heat exchange element.
  • sensible and latent heat of indoor air passing through the electrothermal heat exchange element can be transferred to outdoor air passing through the electrothermal heat exchange element.
  • the total heat exchange element 130 may be formed of a plurality of layers. It is also possible to increase the antibacterial and deodorizing function for the air passing through the heat exchange element by adding the plurality of ocher components, natural bamboo fibers or charcoal.
  • the first covering 140 may be connected to the first blowing fan 121 and constitute a part of a first flow path.
  • the first covering 140 has one side portion 141 connected to the suction portion of the first blowing fan 121, and the other side portion 142 opened is the rotary heat exchange element 130. Is connected to the first region through which the first flow path of the filter passes.
  • the first covering 140 may have a narrow cross-sectional area according to the flow direction of air in the first flow path. That is, the cross-sectional area of the other side portion 142 of the first covering may be formed wider than the cross-sectional area of the one side portion 141.
  • the cross-sectional area of the first covering 140 is formed to be narrower according to the flow direction of the air, thereby increasing the suction performance of the indoor air flowing through the first flow path.
  • the filter box 150 may constitute a part of a first flow path connected to the first covering.
  • the filter box 150 is connected to a first region in which one side portion 151 faces the other side portion 142 of the first covering and the first flow path of the rotary electrothermal exchange element 130 passes.
  • the other open side portion 152 is connected to the indoor intake port 111.
  • One side 151 of the filter box has a cross-sectional area corresponding to the cross-sectional area of the other side 142 of the first covering, one side 151 of the filter box 150 is the other side ( 142 may be in contact with each other to form one flow path.
  • the filter box 150 has a wide cross-sectional area according to the flow direction of air in the first flow path.
  • the rotatable heat exchange element 130 may be disposed between one side portion 151 of the filter box and the other side portion 142 of the first covering. Accordingly, the first flow path is indoor from the indoor to the outdoor inlet 111, the filter box 140, the rotary electrothermal exchange element 130, the first covering 140, the first blowing fan 121 and the outdoor exhaust port 112 ) Has a path that passes sequentially.
  • a cross section of the other side portion 142 of the first covering and a cross section of one side portion 151 of the filter box contacting the disc-shaped rotary electrothermal exchange element 130 may have a semicircular shape.
  • a cross section of the other side portion 142 of the first covering of a semicircular shape and a cross section of one side portion 151 of the filter box may cover a portion of the rotatable electrothermal heat exchange element 130 having a disc shape. Leakage of indoor air flowing through the first flow path formed by the filter box and the first covering by forming one side of the filter box and the other side of the first covering according to the shape of the rotary heat exchange element as in the present embodiment Can be reduced.
  • the pre-filter 153 may be mounted on the other open part 152 of the filter box.
  • the pre-filter 153 may primarily filter indoor air sucked through the indoor intake port 111 to remove foreign substances contained in the indoor air.
  • the prefilter 153 may prevent the electrothermal exchange element 130 from being contaminated by foreign matters contained in indoor air.
  • the total heat exchange ventilation device 100 may further include a second covering 160 disposed between the second blowing fan 122 and the rotary heat exchange element 130.
  • the second covering 160 may prevent the leakage of air in the second flow path formed between the external intake port 113 and the internal exhaust port 112.
  • the open one side 161 of the second covering 160 is connected to the exhaust port of the second blowing fan 122, and the other side 162 of the second covering 160 is connected to the rotatable heat exchange element 130.
  • the second flow passage passes through the outdoor air inlet 113, the second blowing fan 122, the second covering 160, the rotary heat exchange element 130, and the indoor exhaust port 112 sequentially from the outdoor to the indoor. It can have a path.
  • the cross section of the other side portion 162 of the second covering in contact with the rotary electrothermal exchange element 130 may have a semi-circular shape.
  • a cross section of the other side 162 of the second covering of semi-circular shape covers a part of the cylindrical rotatable electrothermal heat exchange element 130 to prevent leakage of indoor air flowing through a second flow path formed by the second covering. Can be reduced.
  • the total heat exchange ventilation device 100 may further include at least one purification filter 170 disposed in the second covering.
  • the purification filter 170 may function to filter the air sucked outdoors by the second blowing fan.
  • the at least one purification filter 170 may include a known filter component such as silver nano coating, charcoal component, bamboo component.
  • the total heat exchange ventilation device 100 may further include a shielding unit 180 surrounding the outer circumferential region of the rotary heat exchange element.
  • the shielding unit 180 may prevent cross contamination by mixing outdoor air and indoor air during total heat exchange in the total heat exchange element 130.
  • the shield 180 may be formed in two.
  • (A)-(c) is a figure which shows the 1st covering, the filter box, and the 2nd covering used for the electrothermal exchange ventilation apparatus which concerns on other embodiment of this invention.
  • the first covering 240 may be formed between the indoor suction port and the outdoor discharge port of the housing to constitute a part of the first flow path that guides indoor air to the outside.
  • One side of the first covering 240 may be connected to the suction unit of the first blowing fan 221 and the other side may be open.
  • the first covering 240 may have a narrow cross-sectional area according to a flow direction of air in the first flow path. That is, the cross-sectional area of the other side of the first covering may be formed wider than that of the one side.
  • the cross-sectional area of the first covering 240 is formed to be narrower according to the flow direction of the air, thereby increasing the suction performance of the indoor air flowing through the first flow path.
  • the filter box 250 may constitute a part of a first flow path connected to the first covering.
  • the filter box 250 may have one side facing the other side of the first covering, and the other side may be open.
  • One side of the filter box 250 may have a cross-sectional area corresponding to the cross-sectional area of the other side of the first covering.
  • a rotatable heat exchange element may be disposed between one side of the filter box 250 and the other side of the first covering 240.
  • the other side of the first covering 240 and one side of the filter box 250 may be formed to have a cross section corresponding to the shape of the rotatable electrothermal heat exchange element. Leakage of indoor air flowing through the first flow path formed by the filter box and the first covering by forming one side of the filter box and the other side of the first covering according to the shape of the rotary heat exchange element as in the present embodiment Can be reduced.
  • the second covering 260 may constitute a part of a second flow path that sucks outdoor air and delivers the air to the room.
  • One open side portion of the second covering 260 may be connected to an exhaust port of a second blowing fan (not shown) that sucks the outdoor air.
  • the other side of the second covering may be in contact with a rotary heat exchange element (not shown).
  • the second covering 260 may prevent the leakage of air in the second flow path.
  • FIG. 3 is a configuration diagram of a total heat exchange ventilator 100 ′ according to another embodiment of the present invention.
  • the total heat exchange ventilator 100 ′ according to the present embodiment further includes a supply / exhaust duct 101 in the total heat exchange ventilator 100 described with reference to FIG. 1. Except for the supply and exhaust duct 101 is the same as the configuration of the above-described embodiment, except for the difference, detailed description thereof will be omitted, and the supply and exhaust duct 101 will be described in more detail with reference to FIG. .
  • the air supply and exhaust duct 101 includes an air supply duct 102 and an exhaust duct 103.
  • the air supply duct 102 has a first portion 102a and a second portion 102b
  • the exhaust duct 103 similarly has a first portion 103a and a second portion 103b.
  • the first portion 102a of the air supply duct 102 and the second portion 102a of the air exhaust duct 103 combine with each other to form an engaging portion
  • the second portion 102b of the air supply duct 102 and the exhaust duct The second portion 103b of 103 diverges from the engaging portion to form a branching portion.
  • the branching portion is bent and branched from the engaging portion.
  • the coupling part In the case where the supply / exhaust duct 101 is installed, the coupling part is located mostly in the through hole of the wall, and the branch part is located outdoors. Since the coupling part located in the through-hole is located, only one through-hole in which the coupling part is located needs to be drilled when installing the air supply and exhaust duct. Accordingly, the number of perforations is reduced and the installation time is reduced compared to the case where the air supply duct and the exhaust duct are separately installed. It can be shortened.
  • the coupling portion may have an outer shape of the cylinder, in this case, because it can have the same shape as the shape of the through hole of the wall where the air supply and exhaust duct is installed, not only can reduce the size of the through hole, but also between the through hole and the coupling portion. Can reduce the space.
  • the first portion 102a of the air supply duct 102 and the first portion 102b of the exhaust duct 102 may be coupled to each other while forming a taiji pattern.
  • the flow resistance (fluid resistance) of air per same cross-sectional area can be minimized, thus increasing the flow rate.
  • the present invention is not limited to the taiji pattern, and the first portion 102a of the air supply duct 102 and the first portion 102a of the exhaust duct 103 may be combined while forming various cross-sectional shapes.
  • the branch portion may be formed such that the second portion 102b of the air supply duct 102 and the second portion 103b of the exhaust duct 103 face in different directions.
  • the air supply duct 102 and the air exhaust duct 103 are formed to face different directions outdoors, the air flowing into the air supply duct 102 and the air exhausted from the air exhaust duct 103 are separated and do not mix with each other. have.
  • the second portion 102b of the air supply duct 102 and the second portion 103b of the exhaust duct 103 are shown facing in opposite directions to each other, but the present invention is not limited thereto. If it sees a structure, it is included in the scope of the present invention.
  • the air supply duct 102 and the exhaust duct 103 may be made of PVC, there is an advantage that the moldability of the PVC is good to make the air supply and exhaust duct 101 more easily.
  • the present invention is not limited thereto, and the air supply duct 102 and the exhaust duct 103 may be made of a metal such as copper, which provides good durability.
  • the air supply duct 102 and the exhaust duct 103 may be separately manufactured and bonded with an adhesive to form a coupling portion, and instead, the air supply and exhaust duct may be integrally manufactured.
  • the electrothermal heat exchange ventilator 100 ′ further includes an adapter unit 105.
  • 5 (a) schematically shows an adapter unit 105 to which the air supply and exhaust duct 101 is coupled according to an embodiment of the present invention
  • FIG. 5 (b) shows an internal structure of the adapter unit 105. Schematically shows.
  • the adapter portion 105 is connected to the end of the first portion 102a of the air supply duct 102 so that air from the air supply duct 102 and the air supply 106 and the exhaust duct 103 are introduced. It is connected to the end of the first portion (103a) of the exhaust duct 103 comprises an exhaust portion 107 for exhausting air.
  • the adapter unit 105 is configured to allow the supply and exhaust duct 101 to be connected to other devices, thereby increasing the applicability of the supply and exhaust duct.
  • the air supply unit 106 has a configuration (indicated by A in the drawing) to which the first portion 102a of the air supply duct 102 of the air supply duct 101 is coupled, so that the first part of the air supply duct 102 ( Together with 102a), a flow path for introducing outdoor air into a predetermined device located indoors is formed.
  • the exhaust section 107 has a configuration (indicated by B in the drawing) in which the first portion 103a of the exhaust duct 103 of the supply / exhaust duct 101 is coupled, Together with the first portion 103a, a flow path through which air flows out of a predetermined device indoors is formed.
  • Figure 5 (a) and (b) is a schematic representation of a total heat exchange ventilation apparatus having an adapter unit according to an embodiment of the present invention, the present invention is not limited to this, instead of the air supply duct and exhaust duct and Each connected may include a configuration that separates the air inlet or outlet.
  • the electrothermal heat exchange ventilator 101 ' may further include a cover portion covering the branch of the supply and exhaust duct 101.
  • the cover part is configured to cover the branch of the supply / exhaust duct 101 which may be exposed to the outdoors when the electrothermal heat exchange ventilator 101 'is installed, which not only improves the appearance but also protects the supply / exhaust duct 101. Play a role.
  • FIG. 6 is a perspective view schematically showing a cover unit according to an embodiment of the present invention.
  • the cover 104 covers a branch consisting of a second portion 102b of the air supply duct 102 and a second portion 103b of the exhaust duct 103.
  • the portion corresponding to the second portion 102b of the air supply duct 102 of the cover part 104 and the second portion 103b of the exhaust duct 103 may have a mesh shape that allows air to flow in and out. Since the branch part disposed outdoors is covered with a cover part, the appearance can be made better, and foreign matter contained in the outdoor air can be prevented from flowing through the air supply duct 102.
  • cover portion 104 has a mesh shape corresponding to the second portion 102b of the air supply duct 102, but the cover portion 104 has an exhaust duct 103 on the opposite side thereof. It has a mesh shape corresponding to the second portion 103b of ().

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Ventilation (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

L'invention porte sur un appareil de ventilation d'échange thermique comprenant : un carter de corps principal ayant un orifice d'admission d'air intérieur, un orifice de sortie d'air intérieur, un orifice d'admission d'air extérieur et un orifice de sortie d'air extérieur ; un premier ventilateur de soufflerie d'air agencé dans un premier canal d'écoulement formé entre l'orifice d'admission d'air intérieur et l'orifice de sortie d'air extérieur dans le carter de corps principal ; un second ventilateur de soufflerie d'air agencé dans un second canal d'écoulement formé entre l'orifice d'admission d'air extérieur et l'orifice de sortie d'air intérieur dans le carter de corps principal ; un élément d'échange thermique rotatif agencé de façon à permettre au premier canal d'écoulement de traverser une première région et à permettre au second canal d'écoulement de traverser une autre région ; une première enveloppe qui a un côté ouvert relié à une partie d'admission du premier ventilateur de soufflerie d'air et qui a une surface en coupe transversale qui se rétrécie suivant la direction d'écoulement d'air dans le premier canal d'écoulement ; et une boîte filtrante qui a un côté ouvert ayant une surface en coupe transversale correspondant à la surface en coupe transversale de l'autre côté de la première enveloppe, et qui a une surface en coupe transversale qui s'élargie suivant la direction d'écoulement d'air dans le premier canal d'écoulement.
PCT/KR2010/004708 2009-09-16 2010-07-19 Appareil de ventilation d'échange thermique WO2011034277A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2012529650A JP2013504744A (ja) 2009-09-16 2010-07-19 全熱交換換気装置
US13/496,364 US20120178355A1 (en) 2009-09-16 2010-07-19 Heat Exchange Ventilating Apparatus

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2009-0087465 2009-09-16
KR1020090087465A KR100966916B1 (ko) 2009-09-16 2009-09-16 소형 전열 교환 환기 장치
KR1020090109929A KR100974085B1 (ko) 2009-11-13 2009-11-13 급배기 덕트 및 이를 구비한 전열 교환 환기 장치
KR10-2009-0109929 2009-11-13

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Publication Number Publication Date
WO2011034277A2 true WO2011034277A2 (fr) 2011-03-24
WO2011034277A3 WO2011034277A3 (fr) 2011-06-23

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US (1) US20120178355A1 (fr)
JP (1) JP2013504744A (fr)
CN (1) CN102022815B (fr)
WO (1) WO2011034277A2 (fr)

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US10775071B2 (en) 2013-01-04 2020-09-15 Carrier Corporation Energy recovery ventilator
US10092069B2 (en) 2015-02-05 2018-10-09 Shedrain Corporation Umbrella having an anti-inversion mechanism

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JPH11325566A (ja) * 1998-05-12 1999-11-26 Fujimori Sangyo Kk 二管路フレキシブルダクト
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CN102022815A (zh) 2011-04-20
WO2011034277A3 (fr) 2011-06-23

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