EP1691140A1 - Belüftungssystem und Steuerverfahren dafür - Google Patents
Belüftungssystem und Steuerverfahren dafür Download PDFInfo
- Publication number
- EP1691140A1 EP1691140A1 EP05010026A EP05010026A EP1691140A1 EP 1691140 A1 EP1691140 A1 EP 1691140A1 EP 05010026 A EP05010026 A EP 05010026A EP 05010026 A EP05010026 A EP 05010026A EP 1691140 A1 EP1691140 A1 EP 1691140A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- air
- fan
- duct
- air supply
- case
- 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.)
- Granted
Links
- 238000009423 ventilation Methods 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims description 7
- 230000003068 static effect Effects 0.000 claims abstract description 29
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
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
- 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
-
- 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
- F24F7/08—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 with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
-
- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
- F04D29/4246—Fan casings comprising more than one outlet
-
- 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
- F24F11/0001—Control or safety arrangements for ventilation
-
- 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
-
- 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
-
- 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
- F24F13/20—Casings or covers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/14—Details or features not otherwise provided for mounted on the ceiling
Definitions
- the present invention relates to a ventilation system, and more particularly, to a ventilation system, a pressure intensifying apparatus, and a method for controlling the same, in which air volume and external static pressure can be increased.
- a ventilation system is used to replace polluted indoor air with fresh outdoor air.
- a general ventilation system includes an air supply fan for supplying an outdoor air into a room, an air supply duct for guiding an outdoor air into the room, an air exhaust fan for exhausting an indoor air out of the room, and an air exhaust duct for guiding the indoor air out of the room.
- the ventilation system In order to supply air into the room through the duct, the ventilation system must have required air volume and external static pressure. For example, when air is supplied through a circular duct in an about 231-m 2 indoor space by ventilation of 350 CMH, an external static pressure of about 300 Pa is required. At this point, airflow resistance of a duct is an important factor in determining the required air volume and external static pressure. As the indoor space is wide, a length of the duct becomes longer. As the number of the partitioned spaces is increasing, the branches of the duct increase. Consequently, the airflow resistance increases and the required air volume and external static pressure increases. However, it is difficult to increase a capacity of the ventilation system so large as to form sufficient air volume and external static pressure. Thus, the ventilation is not performed smoothly.
- the general ventilation system is installed in a ceiling.
- the ventilation system is designed considering spatial efficiency and economic efficiency, there is a limit in a distance between a bottom of a lower floor and a bottom of an upper floor.
- the ventilation system needs to be designed to be small-sized.
- the present invention is directed to a ventilation system and a pressure intensifying apparatus that substantially obviate one or more problems due to limitations and disadvantages of the related art.
- An object of the present invention is to provide a ventilation system, a pressure intensifying apparatus, and a method for controlling the same, in which external static pressure is formed so high that a wide indoor space can be ventilated.
- Another object of the present invention is to provide a small-sized ventilation system and a pressure intensifying apparatus, which can be installed in a narrow space.
- a ventilation system including: a duct branched into at least rooms; a ventilator connected to the duct, for selectively or simultaneously exhausting indoor air and supplying outdoor air; and a pressure intensifying apparatus including: a case in which air supply unit/air exhaust unit connected to the duct are formed; and a fan for intensifying static pressure of air supplied/exhausted through the duct.
- the pressure intensifying apparatus may include: at least two air supply units and at least two air exhaust units connected to the duct; a fan disposed inside the case, for supply/exhaust air by rotation thereof; and a drive motor disposed inside the case, for rotating the fan.
- the pressure intensifying apparatus may further include a damper for opening/closing the air supply unit and the air exhaust unit.
- the case may be formed evenly, and the air supply unit and the air exhaust unit may be arranged at a periphery of the case.
- the case may have top and bottom surfaces formed in a circular shape. Also, the case may be installed in a ceiling.
- the air supply unit and the air exhaust unit may be inclined with respect to a rotational radius of the fan.
- the air supply unit may further include a damper for opening/closing to guide air sucked inside the case in an axial direction of the fan.
- the pressure intensifying apparatus may be arranged in a position where the duct is branched.
- the duct may include an air supply duct and an air discharge duct.
- the pressure intensifying apparatus may be installed in each of the air supply duct and the air exhaust duct.
- the ventilation system may further include a controller for controlling the ventilator and/or the pressure intensifying apparatus according to user's input information.
- a pressure intensifying apparatus including: at least two branched ducts; a case divided into an upper space and a lower space; an air supply unit and an air exhaust unit for communicating the upper and lower spaces of the case with the duct; a fan disposed inside the case, for sucking air through the air supply unit and exhausting air through the air exhaust unit, or for sucking air through the air exhaust unit and exhausting air through the air supply unit; and a drive motor, disposed inside the case, for rotating the fan.
- the case may be formed evenly, and at least two air supply units and at least two air exhaust units may be arranged at a periphery of the case.
- the fan may be configured to suck air in an axial direction and exhaust air in a radial direction.
- the fan may be a double suction fan having an air supply fan and an air exhaust fan arranged up and down, the air supply fan being configured to suck air toward in an inside of the case through the air supply unit and exhaust the sucked air to the air exhaust unit, the air exhaust fan being configured to suck air through the air exhaust unit and exhaust the sucked air to the air supply unit.
- the air supply unit may further include: an air supply damper for opening/closing to guide air sucked inside the case in an axial direction; and an air exhaust damper for opening/closing to guide air exhausted from the fan toward the duct.
- the air supply damper may include a first air supply damper for guiding air sucked in the air supply unit in an axial direction of the fan, and a second air supply damper for preventing air from being exhausted to the air supply unit when the first air supply damper, and the air exhaust damper includes a first air exhaust damper for guiding air exhausted from the fan to the air exhaust unit, and a second air exhaust damper for preventing air from being sucked into the fan.
- the air exhaust damper and the air supply damper may alternately open the air supply unit and the air exhaust unit.
- the case may be separated into a space where the air supply fan is received and a space where the air exhaust fan is received.
- a method for controlling a ventilation system including the steps of: selecting a predetermined input information; driving a ventilator; driving a pressure intensifying apparatus so as to increase an inner pressure of a duct connected to the ventilator; and increasing a static pressure of the duct by opening a damper, the damper being openable/closable according to the input information and provided at a position where the pressure intensifying apparatus and the duct are connected.
- a method for controlling a pressure intensifying apparatus including the steps of: selecting a predetermined input information; rotating a fan of a pressure intensifying apparatus, the fan being provided to increase an inner pressure of a duct; and increasing a static pressure of the duct by opening a damper, the damper being openable/closable according to the input information and provided at a position where the pressure intensifying apparatus and the duct are connected.
- FIG. 1 is a schematic view for explaining a ventilation system according to an embodiment of the present invention
- FIG. 2 is a view of a pressure intensifying apparatus shown in FIG. 1;
- FIG. 3 is a perspective view of the pressure intensifying apparatus shown in FIG. 2;
- FIG. 4 is a side view illustrating an operation of the pressure intensifying apparatus shown in FIG. 2;
- FIG. 5 is a graph of a relationship between an air volume and an external static pressure in the ventilation system shown in FIG. 1;
- FIG. 6 is a perspective view of a pressure intensifying apparatus according to a second embodiment of the present invention.
- FIG. 7 is a side view illustrating an operation of the pressure intensifying apparatus shown in FIG. 6 when air is guided from an air supply unit to an air exhaust unit;
- FIG. 8 is a side view illustrating an operation of the pressure intensifying apparatus shown in FIG. 6 when air is guided from an air exhaust unit to an air supply unit.
- FIG. 1 is a view for explaining a ventilation system according to an embodiment of the present invention.
- the ventilation system includes a duct 100 spatially branched into at least two indoor spaces, a ventilator 200 connected to the duct 100 to selectively or simultaneously exchange indoor air with outdoor air through the duct 100, and a pressure intensifying apparatus 300 having a fan (320 in FIG. 2) for increasing a static pressure of air supplied/exhausted through the duct 100.
- the duct 100 is branched such that the indoor air is exchanged with outdoor air in the partitioned indoor spaces.
- the duct 100 includes an air supply duct 110 for supplying the outdoor air into the indoor spaces, and an air exhaust duct 120 for exhausting the indoor air to an exterior.
- the ventilation system installed in a wide indoor space is exemplarily shown in FIG. 1.
- the air supply duct 110 is indicated by a solid line and the exhaust duct 120 is indicated by a dotted line.
- An air supply diffuser and an air exhaust diffuser are connected to indoor end portions of the air supply duct 110 and the air exhaust duct 120, respectively. In FIG. 1, the diffusers are indicated by circles. Meanwhile, the duct may be configured with only one of the air supply duct and the air exhaust duct.
- the ducts 110 and 120 can be circular or polygonal. Because the pressure intensifying apparatus 300 increases a static pressure in the duct 100, the polygonal duct having a relatively large airflow resistance can be used. It is apparent that the circular duct is advantageous to reduce airflow resistance. Such a duct is buried in a ceiling.
- the ventilator 200 includes a total heat exchanger (not shown) for exchanging heat between the indoor air and the outdoor air, and a blower fan (not shown) for blowing the indoor air and the outdoor air.
- the total heat exchanger may not be installed in the ventilator 200. Also, it is preferable to install a filter (not shown) that filters out foreign particles contained in the supplied outdoor air.
- the pressure intensifying apparatus 300 it is preferable to install the pressure intensifying apparatus 300 in the air supply duct 110 and the air exhaust duct. It is apparent that the pressure intensifying apparatus 300 can be installed in only one of the air supply duct and the air exhaust duct. Further, it is preferable that the pressure intensifying apparatus 300 is buried in a ceiling. It is also apparent that two or more pressure intensifying apparatuses can be respectively installed in the air supply duct and the air exhaust duct
- the pressure intensifying apparatus 300 includes a case 310 installed in the ducts 110 and 120, air supply units 311 connected to the ducts 110 and 120 to guide air of at least the ducts 110 and 120 into the case 310, air exhaust units 312 for guiding an inside air of the case 310 to the ducts 110 and 120, a fan 320 installed inside the case 310 to rotate to supply/exhaust air, and a drive motor 330 for rotating the fan 320.
- the case 310 is formed evenly. Also, it is preferable that at least two air supply units 311 and at least two air exhaust units 312 are provided at a periphery of the case 310.
- the case 310 is formed evenly for the purpose of enabling it to be buried.
- the air supply unit 311 and the air exhaust unit 312 are provided at the periphery of the case for the purpose of enabling the branched ducts 110 and 120 to be connected from all directions.
- the case 310 has top and bottom surfaces formed in a circular shape.
- the air supply unit 311 and the air exhaust duct 312 are formed spaced apart from each other at predetermined intervals. It is apparent that the case 310 can be made in a polygonal shape.
- the case 310 having the top and bottom surfaces formed in the circular shape is advantageous to reduce airflow resistance.
- the fan 320 may be a turbo fan 320 that sucks air in an axial direction and discharges air in a radial direction.
- the turbo fan 320 includes a plurality of blades 321 radially arranged and a donut-shaped shroud 322 fixed to one side (an upper side in FIG. 3) of the blade 321. Accordingly, the sucked air passes through the central portion of the shroud 322 and is then discharged in the radial direction as the blades 321 are rotating.
- a high static pressure is formed inside the case 310, such that air is discharged.
- the turbo fan 320 is advantageous to increase the static pressure, the turbo fan 320 is installed so as to increase the static pressure in the duct 100. If the turbo fan 320 is used, the height of the case 310 is lowered, such that the pressure intensifying apparatus can be easily buried in the ceiling.
- the air supply unit 311 and the air exhaust unit 312 are inclined by a predetermined angle ( ⁇ ) with respect to a rotational radius of the turbo fan 320. It aims to reduce airflow resistance because the supplied/exhausted air flows obliquely with respect to the rotational radius of the fan 320.
- the pressure intensifying apparatus 300 may further include dampers 340 and 350 for opening/closing the air supply unit 311 and the air exhaust unit 312.
- dampers 340 and 350 for opening/closing the air supply unit 311 and the air exhaust unit 312.
- the damper 340 disposed at the air supply unit 311 is opened, air sucked inside the case 310 is guided in an axial direction (toward an upper portion) of the turbo fan 320.
- the damper 340 is installed to be rotatable about a lower end thereof. Accordingly, in the case of the damper 340, a separate guide for guiding air in the axial direction of the turbo fan 320 need not be installed.
- the ventilator 200 and/or the pressure intensifying apparatus 300 may further include a controller (not shown) for controlling it depending on user's input information.
- the controller (not shown) for the pressure intensifying apparatus 300 controls the static pressure of air passing through the intensifying apparatus 300 by selectively opening/closing the damper 340 depending on the input information.
- the pressure intensifying apparatus 300 can be applied to gas circulating devices, such as a ventilation system and an air conditioner.
- a ventilation mode is started according to a user's selection. At this point, an air supply stroke and an air exhaust stroke can be done at the same time, or only one stroke of them can be done. The former case will be described below.
- the pressure intensifying apparatus 300 opens the dampers 340 and 350 such that air flowing through the ducts 110 and 120 is distributed to the branched ducts.
- the damper 340 disposed at the air supply unit 311 is opened in an inclined manner such that an upper portion of the air supply unit 311 is opened. Accordingly, air introduced in the air supply unit 311 is guided toward the central portion of the turbo fan 320 by the damper 340.
- the turbo fan 320 As the turbo fan 320 rotates, the guided air flows in a radial direction. This operation of the turbo fan 320 causes airflow pressure to increase greatly in the inner periphery of the case 310. Accordingly, air discharged through the air exhaust unit 312 is in a state of very high pressure and is exhausted to the ducts 110 and 120 connected to the air exhaust unit 312. Consequently, the static pressure in the ducts 110 and 120 can increase greatly.
- FIG. 5 is a graph of a test result when the pressure intensifying apparatus 300 is installed in an about 231-m 2 indoor space.
- the static pressure in the ducts 110 and 120 is about 170 Pa (L 1 ).
- the static pressure in the ducts 110 and 120 is about 300 Pa (L 2 ), which is two times as high as the former case. Accordingly, the pressure intensifying apparatus 300 can supply/exhaust sufficient air to/from the indoor space.
- FIGs. 6 to 8 are views of a pressure intensifying apparatus 400 according to a second embodiment of the present invention.
- the pressure intensifying apparatus 400 includes a case 410, an air supply unit 411, an air exhaust unit 412, an air supply fan 420, and an air exhaust fan 430.
- the case 410 is installed in at least two branched ducts 110 and 120 and is divided into an upper space and a lower space.
- the air supply unit 411 and the air exhaust unit 412 communicate the upper and lower spaces of the case 410 with the ducts 110 and 120.
- the air supply fan 420 and the air exhaust fan 430 are installed inside the case 410 and are coaxially connected with a drive motor 440.
- the case 410 has top and bottom surfaces formed in a circular shape. On the periphery of the case 410, the air supply unit 411 and the air exhaust unit 412 are formed spaced apart from each other at predetermined intervals.
- the case 310 having the top and bottom surfaces formed in the circular shape is advantageous to reduce the airflow resistance. Also, an entire height of the case 410 can be reduced.
- the air supply fan 420 sucks air through the air supply unit 411 and exhausts it to the air exhaust unit 412.
- the air exhaust fan 412 sucks air through the air exhaust unit 412 and exhausts it to the air supply unit 411. It is preferable that the fans 420 and 430 are a double suction fan in which the air supply fan 420 and the air exhaust fan 430 are coaxially connected to the drive motor 440.
- the case 410 is partitioned to separate the spaces where the air supply fan 420 and the air exhaust fan 430 are installed.
- the air supply unit 411 includes a first air supply damper 451 for guiding the sucked air in an axial direction of the air supply fan 420, and a second air supply damper 461 for preventing the air from being exhausted from the air exhaust fan 430 to the air supply unit 411 when the first air supply damper 451 is opened.
- the air exhaust unit 412 includes a first air exhaust damper 452 for guiding the air exhausted from the air supply fan 420 to the air exhaust unit 412 toward the air exhaust duct 120, and a second air exhaust damper 462 for preventing air from being sucked to the air exhaust fan 430 when the first air exhaust damper 452.
- the air supply dampers 451 and 461 and the air exhaust dampers 452 and 462 are installed up and down such that they are rotatable about a partition plate that separates the air supply fan 420 and the air exhaust fan 430.
- the first air supply damper 451 is opened in an inclined manner such that an upper surface of the air supply fan 420 is opened.
- the second air supply damper 462 is opened in an inclined manner such that a lower portion of the air exhaust fan 430 is opened. Accordingly, if the dampers 451 and 462 are applied, a separate guide for guiding air in an axial direction of the fan need not be installed.
- the air supply fan 420 operates to increase the static pressure of air supplied from the air supply unit 411 to the air exhaust unit 412.
- the air exhaust fan 430 operates to increase the static pressure of air supplied from the air exhaust unit 412 to the air supply unit 411.
- the static pressure of the ducts 110 and 120 can be increased at the same time by installing the pressure intensifying apparatus 400 in the intersection between the air supply duct 110 and the air exhaust duct 120, not in each of the air supply duct and the air exhaust duct 120.
- the air supply dampers 451 and 461 and the air exhaust dampers 452 and 462 are selectively opened and closed, such that the connection between the air supply unit 411 and the duct 110 and between the air exhaust unit 412 and the duct 120 can be modified. Also, air volume provided to the ducts 110 and 120 can be changed.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ventilation (AREA)
- Jet Pumps And Other Pumps (AREA)
- Air Conditioning Control Device (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020050012319A KR100640824B1 (ko) | 2005-02-15 | 2005-02-15 | 공기조화 시스템 및 정압상승장치 그리고 그 제어방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1691140A1 true EP1691140A1 (de) | 2006-08-16 |
EP1691140B1 EP1691140B1 (de) | 2009-11-25 |
Family
ID=36499214
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05010026A Not-in-force EP1691140B1 (de) | 2005-02-15 | 2005-05-09 | Belüftungssystem und Steuerverfahren dafür |
Country Status (5)
Country | Link |
---|---|
US (1) | US20060199520A1 (de) |
EP (1) | EP1691140B1 (de) |
KR (1) | KR100640824B1 (de) |
CN (1) | CN1821668B (de) |
ES (1) | ES2334676T3 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2343161A1 (es) * | 2009-01-22 | 2010-07-23 | SOLER & PALAU VENTILATION GROUP, S.A. | Sistema de ajuste automatico de la presion de un ventilador en funcion del caudal requerido. |
WO2014113877A1 (en) * | 2013-01-23 | 2014-07-31 | Rev-Air Innovations Inc. | Air diffuser |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100747802B1 (ko) * | 2005-11-14 | 2007-08-08 | 엘지전자 주식회사 | 환기장치 및 환기장치의 제어방법 |
KR100756441B1 (ko) * | 2007-06-11 | 2007-09-07 | (주) 스카이시스템 | 주택 내부 환기시스템 및 그 제어방법 |
EP2196737B1 (de) * | 2008-12-10 | 2013-07-03 | Electrolux Home Products Corporation N.V. | Absaughaube |
JP4697341B2 (ja) | 2009-07-08 | 2011-06-08 | ダイキン工業株式会社 | 換気システム |
GB2511333B (en) * | 2013-02-28 | 2019-02-27 | Greenwood Air Man Limited | Commissioning system for ventilation system |
KR102057957B1 (ko) * | 2013-04-19 | 2019-12-20 | 엘지전자 주식회사 | 터보팬 및 이를 사용한 천정형 공기조화기 |
JP5679012B2 (ja) * | 2013-07-29 | 2015-03-04 | ダイキン工業株式会社 | 送風装置 |
JP6311377B2 (ja) * | 2014-03-17 | 2018-04-18 | 株式会社デンソー | シート空調システム |
US9975354B1 (en) | 2017-02-28 | 2018-05-22 | Ricoh Company, Ltd. | Concentric duct system for a dryer for printing system |
CN112361486B (zh) * | 2020-11-16 | 2024-05-10 | 珠海格力电器股份有限公司 | 增压装置及其控制方法和空调系统 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3951205A (en) | 1972-08-18 | 1976-04-20 | Brandt Engineering Co. | Air-conditioning apparatus |
US4942921A (en) * | 1988-01-29 | 1990-07-24 | Staefa Control Systems, Inc. | Forced air ventilation system |
US5119987A (en) | 1990-03-31 | 1992-06-09 | Kabushiki Kaisha Toshiba | Ventilating apparatus |
US5236393A (en) | 1991-08-28 | 1993-08-17 | Metal Industries, Inc. | Bypass damper in series-type ventilation fan |
EP0819895A2 (de) * | 1996-07-17 | 1998-01-21 | LANDIS & STAEFA, INC. | Automatische Durchflusskalibrierung in einem Zweig einer Klimaanlage |
US5976010A (en) | 1997-06-27 | 1999-11-02 | York International Corporation | Energy efficient air quality maintenance system and method |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6119463A (en) * | 1998-05-12 | 2000-09-19 | Amerigon | Thermoelectric heat exchanger |
-
2005
- 2005-02-15 KR KR1020050012319A patent/KR100640824B1/ko not_active IP Right Cessation
- 2005-05-09 EP EP05010026A patent/EP1691140B1/de not_active Not-in-force
- 2005-05-09 ES ES05010026T patent/ES2334676T3/es active Active
- 2005-05-19 US US11/132,189 patent/US20060199520A1/en not_active Abandoned
- 2005-05-25 CN CN2005100729972A patent/CN1821668B/zh not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3951205A (en) | 1972-08-18 | 1976-04-20 | Brandt Engineering Co. | Air-conditioning apparatus |
US4942921A (en) * | 1988-01-29 | 1990-07-24 | Staefa Control Systems, Inc. | Forced air ventilation system |
US5119987A (en) | 1990-03-31 | 1992-06-09 | Kabushiki Kaisha Toshiba | Ventilating apparatus |
US5236393A (en) | 1991-08-28 | 1993-08-17 | Metal Industries, Inc. | Bypass damper in series-type ventilation fan |
EP0819895A2 (de) * | 1996-07-17 | 1998-01-21 | LANDIS & STAEFA, INC. | Automatische Durchflusskalibrierung in einem Zweig einer Klimaanlage |
US5976010A (en) | 1997-06-27 | 1999-11-02 | York International Corporation | Energy efficient air quality maintenance system and method |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2343161A1 (es) * | 2009-01-22 | 2010-07-23 | SOLER & PALAU VENTILATION GROUP, S.A. | Sistema de ajuste automatico de la presion de un ventilador en funcion del caudal requerido. |
WO2010084216A1 (es) * | 2009-01-22 | 2010-07-29 | Soler & Palau Ventilation Group, S.L. | Sistema. de ajuste automático de la presión de un ventilador en función del caudal requerido |
WO2014113877A1 (en) * | 2013-01-23 | 2014-07-31 | Rev-Air Innovations Inc. | Air diffuser |
Also Published As
Publication number | Publication date |
---|---|
EP1691140B1 (de) | 2009-11-25 |
ES2334676T3 (es) | 2010-03-15 |
US20060199520A1 (en) | 2006-09-07 |
KR100640824B1 (ko) | 2006-11-06 |
CN1821668A (zh) | 2006-08-23 |
CN1821668B (zh) | 2010-06-16 |
KR20060091439A (ko) | 2006-08-21 |
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