WO2007061403B1 - Airflow management system in a hvac unit including two fans of different diameters - Google Patents
Airflow management system in a hvac unit including two fans of different diametersInfo
- Publication number
- WO2007061403B1 WO2007061403B1 PCT/US2005/041279 US2005041279W WO2007061403B1 WO 2007061403 B1 WO2007061403 B1 WO 2007061403B1 US 2005041279 W US2005041279 W US 2005041279W WO 2007061403 B1 WO2007061403 B1 WO 2007061403B1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- airflow
- fan
- heat exchanger
- recited
- management system
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
- Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
Abstract
Air is heated by a gas or electric heat exchanger or cooled in an evaporator coil. The air is discharged through a discharge opening to heat or cool an area. Two fans draw an exterior air stream over the gas or electric heat exchanger or the evaporator coil. A first fan has a diameter greater than a diameter of a second fan. When in a side discharge configuration, the second fan is located between the first fan and the side discharge opening. The first fan has a larger diameter to produce a stronger airflow to overcome the airflow produced by the second fan, better distributing the airflow from the first fan. The airflow generated by the second fan is directed to the discharge opening relatively unimpeded.
Claims
1. A heat exchanger comprising: a heat exchanger coil; a first fan to produce a first airflow that exchanges heat with a medium in the heat exchanger coil; and a second fan to produce a second airflow that exchanges heat with the medium in the heat exchanger coil, wherein the first airflow is stronger than the second airflow, and the first airflow and the second airflow flow through a common discharge.
2. The heat exchanger as recited in claim 1 wherein the first fan has a first diameter and the second fan has a second diameter, and the first diameter is greater than the second diameter.
3. The heat exchanger as recited in claim 1 wherein the first fan operates at a first fan speed and the second fan operates at a second fan speed, and the first fan speed is greater than the second fan speed.
4. The heat exchanger as recited in claim 1 wherein the first airflow and the second airflow exit through the common discharge, and the first airflow and the second airflow are directed along a substantially straight path from the first fan and the second fan, respectively, to the common discharge.
5. The heat exchanger as recited in claim 1 wherein the first airflow and the second airflow exit through the common discharge and the second fan is located between the first fan and the common discharge.
6. The heat exchanger as recited in claim 1 wherein the first fan and the second fan operate in parallel. 14
7. The heat exchanger as recited in claim 1 wherein the heat exchanger coil is an evaporator coil, and the first fan and the second fan draw the first airflow and the second airflow, respectively, over the evaporator coil.
8. The heat exchanger as recited in claim 1 wherein the heat exchanger is a gas or electric heat exchanger, and the first fan and the second fan blow the first airflow and the second airflow, respectively, over the gas or electric heat exchanger.
15
9. An airflow management system comprising: a vapor compression system including an evaporator coil, wherein refrigerant flows through the evaporator coil; a heating heat exchanger that produces a heated medium; and an air moving section including: a first fan to produce a first airflow that exchanges heat with the refrigerant in the evaporator coil when the airflow management system is operating in a cooling mode and that exchanges heat with the heated medium in the heating heat exchanger when the airflow management system is operating in a heating mode, and a second fan to produce a second airflow that exchanges heat with the refrigerant in the evaporator coil when the airflow management system is operating in the cooling mode and that exchanges heat with the heated medium in the heating heat exchanger when the airflow management system is operating in the heating mode, wherein the first airflow is stronger than the second airflow, and the first airflow and the second airflow flow through a common discharge.
10. The system as recited in claim 9 wherein the vapor compression system includes: a compressor to compress the refrigerant to a high pressure, a condenser for exchanging heat between the refrigerant and a fluid, and an expansion device to expand the refrigerant to a low pressure.
11. The system as recited in claim 9 wherein the first fan has a first diameter and the second fan has a second diameter, and the first diameter is greater than the second diameter.
12. The system as recited in claim 9 wherein the first fan operates at a first fan speed and the second fan operates at a second fan speed, and the first fan speed is greater than the second fan speed. 16
13. The system as recited in claim 9 wherein the first airflow and the second airflow exit the airflow management system through the common discharge, and the first airflow and the second airflow are directed along a substantially straight path from the first fan and the second fan, respectively, to the common discharge.
14. The system as recited in claim 9 wherein the first airflow and the second airflow exit the airflow management system through the common discharge and the second fan is located between the first fan and the common discharge.
15. The system as recited in claim 9 wherein the first fan and the second fan operate in parallel.
16. The system as recited in claim 9 wherein the first fan and the second fan draw the first airflow and the second airflow, respectively, over the evaporator coil.
17. The system as recited in claim 9 wherein the first fan and the second fan blow the first airflow and the second airflow, respectively, over the heating heat exchanger.
17
18. A method of managing an airflow comprising the steps of: operating an airflow management system in one of a cooling mode and a heating mode; generating a first airflow that exchanges heat with a refrigerant in an evaporator coil when the airflow management system is operating in the cooling mode and that exchanges heat with a heated medium in a heating heat exchanger when the airflow management system is operating in the heating mode; and generating a second airflow that exchanges heat with the refrigerant in the evaporator coil when the airflow management system is operating in the cooling mode and that exchanges heat with the heated medium in the heating heat exchanger when the airflow management system is operating in the heating mode, wherein the first airflow is stronger than the second airflow, and the first airflow and the second airflow flow through a common discharge.
19. The method as recited in claim 18 wherein the first airflow is generated by a first fan having a first diameter and the second airflow is generated by a second fan having a second diameter, wherein the first diameter is greater than the second diameter.
20. The method as recited in claim 18 wherein the first airflow has a first speed and the second airflow has a second speed, and the first speed is greater than the second speed.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2005800520679A CN101310153B (en) | 2005-11-16 | 2005-11-16 | Air flow management system comprising two fan with different diameter in heating ventilator unit and air conditioner unit |
CA2626064A CA2626064C (en) | 2005-11-16 | 2005-11-16 | Airflow management system in a hvac unit including two fans of different diameters |
PCT/US2005/041279 WO2007061403A1 (en) | 2005-11-16 | 2005-11-16 | Airflow management system in a hvac unit including two fans of different diameters |
US12/090,405 US20090133856A1 (en) | 2005-11-16 | 2005-11-16 | Airflow management system in a hvac unit including two fans of different diameters |
HK09104419.6A HK1126269A1 (en) | 2005-11-16 | 2009-05-14 | Heat exchanger, airflow management system and method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US2005/041279 WO2007061403A1 (en) | 2005-11-16 | 2005-11-16 | Airflow management system in a hvac unit including two fans of different diameters |
Publications (3)
Publication Number | Publication Date |
---|---|
WO2007061403A1 WO2007061403A1 (en) | 2007-05-31 |
WO2007061403B1 true WO2007061403B1 (en) | 2007-08-09 |
WO2007061403A8 WO2007061403A8 (en) | 2008-09-25 |
Family
ID=38067506
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2005/041279 WO2007061403A1 (en) | 2005-11-16 | 2005-11-16 | Airflow management system in a hvac unit including two fans of different diameters |
Country Status (5)
Country | Link |
---|---|
US (1) | US20090133856A1 (en) |
CN (1) | CN101310153B (en) |
CA (1) | CA2626064C (en) |
HK (1) | HK1126269A1 (en) |
WO (1) | WO2007061403A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114777219B (en) * | 2022-05-12 | 2023-10-27 | 江苏晋成空调工程有限公司 | Air treatment unit with adjustable cooling coil |
Family Cites Families (29)
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US2280512A (en) * | 1940-05-02 | 1942-04-21 | B F Sturtevant Co | Refrigeration apparatus |
US3410105A (en) * | 1967-02-15 | 1968-11-12 | Philco Ford Corp | Air conditioner |
JPS61173031A (en) * | 1985-01-24 | 1986-08-04 | Nishida Tekko Kk | Floor-on fan type air conditioner |
US4779672A (en) * | 1985-11-19 | 1988-10-25 | Toyota Jidosha Kabushiki Kaisha | Air conditioner for vehicle having blower with auxiliary intake port |
JPS63263332A (en) * | 1987-04-20 | 1988-10-31 | Sanyo Electric Co Ltd | Heat exchanging unit |
JPH01181032A (en) * | 1988-01-13 | 1989-07-19 | Toshiba Corp | Air conditioner |
US5245836A (en) * | 1989-01-09 | 1993-09-21 | Sinvent As | Method and device for high side pressure regulation in transcritical vapor compression cycle |
US5271238A (en) * | 1990-09-14 | 1993-12-21 | Nartron Corporation | Environmental control system |
JPH04190023A (en) * | 1990-11-22 | 1992-07-08 | Fujitsu General Ltd | Air conditioner |
US5309731A (en) * | 1991-12-27 | 1994-05-10 | Nippondenso Co., Ltd. | Air conditioning apparatus |
US5488835A (en) * | 1993-07-28 | 1996-02-06 | Howenstine; Mervin W. | Methods and devices for energy conservation in refrigerated chambers |
JP3476899B2 (en) * | 1994-04-12 | 2003-12-10 | 東芝キヤリア株式会社 | Air conditioner |
US5490394A (en) * | 1994-09-23 | 1996-02-13 | Multibras S/A Eletrodomesticos | Fan control system for the evaporator of refrigerating appliances |
JP3404150B2 (en) * | 1994-09-28 | 2003-05-06 | 東芝キヤリア株式会社 | Air conditioner and control method thereof |
US5694783A (en) * | 1994-10-26 | 1997-12-09 | Bartlett; Matthew T. | Vapor compression refrigeration system |
JPH08189658A (en) * | 1995-01-09 | 1996-07-23 | Daikin Ind Ltd | Air-conditioner |
JPH0968316A (en) * | 1995-08-30 | 1997-03-11 | Toshiba Corp | Thermally cooking apparatus |
US5657638A (en) * | 1995-10-02 | 1997-08-19 | General Electric Company | Two speed control circuit for a refrigerator fan |
CN1157903A (en) * | 1996-04-12 | 1997-08-27 | 王曰信 | Warm meal refrigerater |
JPH10119533A (en) * | 1996-10-22 | 1998-05-12 | Denso Corp | Air conditioner for vehicle |
US5782101A (en) * | 1997-02-27 | 1998-07-21 | Carrier Corporation | Heat pump operating in the heating mode refrigerant pressure control |
DE19713197B4 (en) * | 1997-03-28 | 2008-04-24 | Behr Gmbh & Co. Kg | Method for operating an air conditioning system in a motor vehicle and air conditioning with a refrigerant circuit |
KR100208144B1 (en) * | 1997-06-05 | 1999-07-15 | 윤명혁 | Flow direction switch type air conditioner |
US6560980B2 (en) * | 2000-04-10 | 2003-05-13 | Thermo King Corporation | Method and apparatus for controlling evaporator and condenser fans in a refrigeration system |
US6415617B1 (en) * | 2001-01-10 | 2002-07-09 | Johnson Controls Technology Company | Model based economizer control of an air handling unit |
US6397610B1 (en) * | 2001-05-01 | 2002-06-04 | Cohand Technology Co., Ltd. | Method for controlling air conditioner/heater by coil temperature |
US6694763B2 (en) * | 2002-05-30 | 2004-02-24 | Praxair Technology, Inc. | Method for operating a transcritical refrigeration system |
US6968708B2 (en) * | 2003-06-23 | 2005-11-29 | Carrier Corporation | Refrigeration system having variable speed fan |
JP2005059797A (en) * | 2003-08-19 | 2005-03-10 | Denso Corp | Air-conditioner for vehicle |
-
2005
- 2005-11-16 CN CN2005800520679A patent/CN101310153B/en not_active Expired - Fee Related
- 2005-11-16 US US12/090,405 patent/US20090133856A1/en not_active Abandoned
- 2005-11-16 CA CA2626064A patent/CA2626064C/en not_active Expired - Fee Related
- 2005-11-16 WO PCT/US2005/041279 patent/WO2007061403A1/en active Application Filing
-
2009
- 2009-05-14 HK HK09104419.6A patent/HK1126269A1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CN101310153B (en) | 2010-12-15 |
CA2626064C (en) | 2011-06-28 |
CA2626064A1 (en) | 2007-05-31 |
CN101310153A (en) | 2008-11-19 |
WO2007061403A1 (en) | 2007-05-31 |
WO2007061403A8 (en) | 2008-09-25 |
HK1126269A1 (en) | 2009-08-28 |
US20090133856A1 (en) | 2009-05-28 |
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