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GB2317445A - Solar powered air conditioning - Google Patents

Solar powered air conditioning Download PDF

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Publication number
GB2317445A
GB2317445A GB9619508A GB9619508A GB2317445A GB 2317445 A GB2317445 A GB 2317445A GB 9619508 A GB9619508 A GB 9619508A GB 9619508 A GB9619508 A GB 9619508A GB 2317445 A GB2317445 A GB 2317445A
Authority
GB
United Kingdom
Prior art keywords
vehicle
air
interior
cooling
heat exchange
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
Application number
GB9619508A
Other versions
GB9619508D0 (en
GB2317445B (en
Inventor
John Humphrey Millar
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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB9619508A priority Critical patent/GB2317445B/en
Publication of GB9619508D0 publication Critical patent/GB9619508D0/en
Publication of GB2317445A publication Critical patent/GB2317445A/en
Application granted granted Critical
Publication of GB2317445B publication Critical patent/GB2317445B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00478Air-conditioning devices using the Peltier effect
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00421Driving arrangements for parts of a vehicle air-conditioning
    • B60H1/00428Driving arrangements for parts of a vehicle air-conditioning electric
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0046Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/80Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/88Optimized components or subsystems, e.g. lighting, actively controlled glasses

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

Apparatus for heating and/or cooling the interior of a vehicle comprising solar power means (3) for generating electrical power from solar radiation incident on the vehicle exterior to power heat exchanger means (9) adapted to add heat to or to absorb heat from air circulating within the vehicle. The invention is suitable for use with any type of vehicle, whether it be for use on land or water or in the air. A control unit (7) operates the fan in response to temperature sensors 13 and 15.

Description

SOLAR POWERED AIR CONDITIONING The present invention relates to solar powered air conditioning, particularly but not exclusively for motor vehicles such as cars.
When a vehicle is left unattended during the day in a hot climate, its interior can rapidly heat up to the extent that it becomes uncomfortable, even unbearably, hot. In a cold climate, the unattended vehicle rapidly loses heat and becomes uncomfortably cold. It is not always possible to park the vehicle in the shade, or safe to leave the windows open, in a hot climate, nor is it feasible always to park in a heated garage in a cold climate.
Nearly all vehicles have some form of heating system; many particularly those destined for use in hot climates, have some form of air conditioning which, as well as cooling the vehicle interior, can also provide heating if required. These types of system consume considerable amounts of energy and are therefore usually only operated when the vehicle's main power supply, or engine, is running. If the vehicle is left unattended with the engine running in order to keep the interior cool, (or warm), this causes significant and undesirable pollution. One solution to the problem of unattended vehicles becoming too hot or too cold has been to arrange for the heating on air conditioning system to operate automatically whilst the vehicle is unattended and the main engine inactive, powered by the vehicle batteries.
However, since the power consumption is high and there may be a need to maintain the interior vehicle temperature at a comfortable level for an extended period, this arrangement requires the vehicle to be fitted with large and heavy batteries which have an adverse affect on the vehicle's efficiency and/on performance.
In accordance with the present invention, apparatus for heating and/or cooling the interior of a vehicle comprises solar power means for generating electrical power from solar radiation incident on the vehicle exterior to power heat exchange means adapted to add heat to or to absorb heat from air circulating within the vehicle.
Such an arrangement requires no extra, heavy batteries and has the significant advantage of using that solar energy which contributes to the heating of the vehicle interior in a hot climate in order to keep the interior vehicle temperature to a comfortable or tolerable level. The greatest amount of incident radiation exists in those countries having a very hot climate, thus such an apparatus is of greatest effect in keeping a vehicle interior comfortably cool in such a country. However, even in temperate climates hot weather is not infrequent, and an apparatus in accordance with the invention will receive sufficient incident solar radiation in a temperate climate to keep a vehicle interior cool. Even in cold climates, there is usually sufficient solar radiation to power the apparatus in order to at least remove the chill from a vehicle interior, if not to raise the interior temperature to a comfortable level.
Preferably control means are provided which are adapted to sense the air temperature within the vehicle and to cause the heat exchange means to add heat to or to absorb heat from the air within the vehicle according to whether the sensed air is below or above a first predetermined temperature range.
With such an arrangement, the heat exchange means will automatically operate when the interior vehicle temperature moves outside the first predetermined range, which can be fixed or varied by the vehicle driver or passenger to take account of variable ambient temperatures, such as occur in temperate climates, or when a vehicle moves from a hot climate to a cold climate, for example.
The control means may be adapted to sense ambient temperature outside the vehicle and, when the sensed ambient temperature is outside a second predetermined range, to cause the heat exchanger means to add heat to or to absorb heat from the air within the vehicle so as to maintain the air temperature within the vehicle within a third predetermined range.
With an arrangement of this nature, the apparatus can be brought into operation before the temperature inside the vehicle becomes uncomfortably hot or cold, and is particularly suitable for use in a temperate climate or where the vehicle is likely to be unattended for short periods only. The second and third predetermined temperature ranges could be set for a particular climate, or it could be varied as desired by the driver or passenger.
Additionally or alternatively the control means may be adapted to deactivate the heat exchange means and to divert the electrical power generated by the solar power means for purpose(s) other than heating or cooling the interior of the vehicle either when the air temperature within the vehicle is within a fourth predetermined range, or when the vehicle is being driven by its main power supply.
Thus, when the sensed temperature within the vehicle falls within the fourth temperature range, which is preferably somewhat narrower than and wholly within the first temperature range, the electricity generated by the solar power means can be usefully diverted, to charge the vehicle battery rather than to power the heat exchange means, for example. Again, the fourth temperature range could be fixed or it could be variable to allow the vehicle driver or passenger to compensate for variable ambient temperatures or to adjust the system for individual comfort.
The heat exchange means is preferably a solid state peltier effect device, that is, a device adapted to liberate or to absorb heat at the junction of two dissimilar metals according to the direction of a DC electric current passing therethrough.
Alternatively, in applications where it is only necessary to cool the vehicle interior, in hot climates for example, the heat exchanger may comprise a refrigeration circuit incorporating a non-rotating compressor driven by a swing motor.
Fan means are preferably provided to circulate air within the vehicle past the heat exchange means. The fan means, which may also be powered by electricity generated by the solar power means, improve the efficiency of the apparatus, and may circulate the air through existing heating or air conditioning ductwork in the vehicle.
The solar power means preferably extends over at least a portion of at least the roof of the vehicle, and is preferably in the form of one or more thin film photovoltaic modules.
Apparatus in accordance with the present invention provides a relatively simple and inexpensive solution to the problem of unattended vehicles becoming too hot or too cold according to ambient conditions. It may be incorporated when the vehicle is manufactured, or it may be readily and inexpensively retro-fitted to existing vehicles. The apparatus may be fitted to any type of vehicle, including road vehicles such as cars, buses, vans, trucks, railway carriages aircraft and boats.
The invention will now be described by way of example with reference to the accompanying Figure 1, which is a schematic illustration of an embodiment of an apparatus for heating and/or cooling the interior of a car in accordance with the present invention. Two alternative exemplary embodiments for heating and/or cooling the interior of a car will also be described.
An embodiment of an apparatus for heating and/or cooling the interior of a car in accordance with the invention is shown schematically in Figure 1. To the roof of the car 1 are mounted a number of thin film photovoltaic modules 3. These convert solar energy incident thereon into electrical power, which is conducted along wires 5 to a control unit 7 (a suitably programmed microprocessor, for example) located within the vehicle luggage compartment and which actuates the heat exchanger and fan unit 9 according to the ambient (ie external) temperature and the temperature inside the car passenger compartment, which temperatures are sensed by temperature sensors 13 and 15 respectively. Unit 9 draws in air from the vehicle interior via ductwork lla, adds or removes heat from the air as appropriate and according to the programming of the control unit 7 (ie so as to maintain a comfortable temperature inside the car) and expels the thus heated or cooled air back into the passenger compartment via ductwork lib (the flow of air being indicated generally by the arrows).
Two alternative exemplary embodiments will now be described. In both embodiments the solar power means comprises a number of thin film photovoltaic modules covering the roof of the car. Such modules are suitably of the flexible, light and thin variety, and can therefore be affixed to the roof of the car in the same way as a conventional vinyl roof. Such modules are typically between 10 and 12% efficient and the area of a typical car roof is between about 1.5 and 2 square metres. Moreover, the efficiency of thin film photovoltaic modules may exceed 12%, in which case more electricity can be generated. In applications where it is possible to provide a large area of photovoltaic modules, such as in a bus, train, lorry or aircraft, a conventional rotary compressor, which can provide a more powerful refrigeration effect than a non-rotary compressor, could be used. A separate battery could be provided to overcome the high starting torque of such a compressor (which would then be powered by the electricity produced by the photovoltaic modules) and could be kept charged by the photovoltaic modules and/or the vehicle's engine-driven generator. Such a system could be connected to the vehicle's standard installed air-conditioning system. Solar radiation energy, or insolation, in a temperate to hot climate is typically in the order of 800 Watts/m2, therefore such a solar power means generates about 120 Watts or more of usable electricity. If further electric power is required, the area of the photovoltaic modules can be increased so as to cover more of the upper surface area of the car.
Within the vehicle boot is mounted a control unit connected to a heat exchanger and a fan to draw air from the vehicle interior, through the heat exchanger and back into the vehicle interior, via existing heating or air conditioning ductwork in the vehicle.
The control unit is also connected to two temperature sensors, one to sense the temperature within the vehicle passenger compartment and the other to sense the ambient outside temperature.
In the first embodiment, the heat exchange is a solid state peltier effect device capable of either liberating or absorbing heat according to the direction of a DC electric current passing there through.
The control unit is programmed to actuate the peltier device according to whether one or both of the sensed temperatures are outside predetermined ranges, to cause the device to liberate or absorb heat, and to actuate the fan to circulate the air within the vehicle through or past, the peltier device. Electrical power to drive the peltier device and the fan is provided by the photovoltaic modules.
When the control unit senses that the vehicle interior temperature is within a predetermined, "comfort" range it deactivates the peltier device and the fan and diverts the electrical power from the photovoltaic modules to charging the vehicle battery. The control unit can additionally or alternatively be programmed to do this when the car engine is running, when the car's normal heating/air conditioning system can provide the necessary heating/refrigeration.
In the second embodiment the heat exchanger is in the form of a refrigeration circuit comprising a non-rotating compressor driven by a swing motor, such as are commercially available from a number of swing motor manufacturers. A swing motor operates in an analogous manner to an electro-magnetic loudspeaker and is particularly advantageous because it requires no starting torque and has a high efficiency because the resonance phenomenon is used to advantage. Commercially available swing motors tend to have a low power rating, and therefore the refrigeration circuit may comprise two or more such motors and non-rotating compressors in order to fully utilise all of the electrical power produced by the photovoltaic modules. It goes without saying that such an embodiment is only capable of cooling the car interior, and is therefore suitable only for applications in which there is a greater problem due to excess ambient heat than there is due to ambient temperatures being too low - in countries with hot climates, for example. In applications where it is possible to provide a large area of photovoltaic modules, such as in a bus, train, lorry or aircraft, a conventional rotary compressor, which can provide a more powerful refrigeration effect than a nonrotary compressor, could be used. A separate battery could be provided to overcome the high starting torque of such a compressor (which would then be powered by the electricity produced by the photovoltaic modules) and could be kept charged by the photovoltaic modules and/or the vehicle's engine-driven generator. Such a system could be connected to the vehicle's standard installed air-conditioning system.
In hot climates, ambient temperatures may reach 30 to 400C, and the control unit could be programmed to operate the apparatus whenever the vehicle interior temperature exceeds 15 to 200C.
In cold climates where ambient temperatures are frequently below OOC the control unit could be programmed to respond to the inside temperature requirements.
Both of the embodiments described may be easily and inexpensively fitted to cars, and to many other types of vehicle such as vans, buses, trucks, refrigerated vans or containers, trains, aircraft or boats. Since many of these vehicles have roofs which are significantly larger than that of a car, the apparatus in accordance with the invention is particularly suited for use with these larger vehicles. Many modifications to the described embodiments will be apparent to the skilled person, such as drawing in air from outside the vehicle to provide a ventilation effect rather than simply recirculating the air within the vehicle, or locating the apparatus elsewhere than in the luggage compartment (in the glove compartment, for example). It is believed that the invention herein described, although simple in concept, is capable of very wide application and in addition to the advantages described above will also have other beneficial effects, such as reducing pollution and removing the need to park cars in the shade on a hot day.
It will be appreciated that although the present invention has been described with reference to a car, the term "vehicle" as used herein encompasses all types of conveyance on land, water or air including all kinds of road vehicle, such as cars, buses, vans and trucks, and also railway carriages, boats and aircraft.
Aircraft frequently have to be parked in the open, when awaiting servicing or a new schedule, for example, and to avoid pollution from a diesel generator apparatus in accordance with the present invention could be used to generate electricity from daylight to power an air conditioning unit to protect sensitive equipment inside the aircraft from any adverse effects from high temperature and humidity, as well as maintaining a comfortable interior temperature for passengers and/or aircrew in the aircraft. Similarly, railways are often obliged to park in the open air trains of coaches, or carriages, which are temporarily out of use, and apparatus in accordance with the present invention could be used to keep the interior temperature of these coaches at a comfortable level.

Claims (18)

1 Apparatus for heating and/or cooling the interior of a vehicle comprising solar power means for generating electrical power from solar radiation incident on the vehicle exterior to power heat exchange means adapted to add heat to or to absorb heat from air circulating within the vehicle.
2 Apparatus as claimed in Claim 1 comprising control means adapted to sense the air temperature within the vehicle and to cause the heat exchange means to add heat to or to absorb heat from the air within the vehicle according to whether the sensed air is below or above a first predetermined temperature range.
3. Apparatus as claimed in Claim 2 wherein the control means is adapted to sensed ambient temperature outside the vehicle and, when the senses ambient temperature is outside a second predetermined range, to cause the heat exchange means to add heat to or to absorb heat from the air within the vehicle so as to maintain the air temperature within the vehicle within either the first or a third predetermined range.
4. Apparatus as claimed in either of Claims 2 or 3 wherein the control means is adapted to deactivate the heat exchange means and to divert the electrical power generated by the solar power means for purpose(s) other than heating or cooling the interior of the vehicle either when the air temperature within the vehicle is within a fourth predetermined range, or when the vehicle is being driven by its main power supply.
5. Apparatus as claimed in any one of Claims 2, 3 or 4 wherein means are provided for adjustment of the first, second, third and/or fourth predetermined temperature ranges.
6. Apparatus as claimed in any preceding Claim wherein the heat exchange means is a solid state peltier effect device.
7. Apparatus as claimed in any of Claims 1 to 5 for cooling the interior of a vehicle wherein the heat exchange means comprises a refrigeration circuit incorporating a non-rotating compressor driven by a swing motor.
8. Apparatus as claimed in any of Claims 1 to 5 for cooling the interior of a vehicle wherein the heat exchange means comprises a refrigeration circuit incorporating a rotary compressor.
9. Apparatus as claimed in Claim 8 comprising battery means for providing additional electrical power to overcome the starting torque of the compressor when the cooling apparatus is actuated.
10. Apparatus as claimed in any preceding Claim comprising fan means, powered by electricity generated by the Solar power means, to circulate air within the vehicle past the heat exchange means.
11. Apparatus as claimed in Claim 10 wherein the vehicle has ductwork for the circulation of air for heating or cooling the interior of the vehicle powered by the main vehicle power supply and wherein the fan means is located so as to circulate air through said ductwork.
12. Apparatus as claimed in any preceding Claim wherein the Solar power means is mounted to at least the roof of the vehicle and extends over at least a portion thereof.
13. Apparatus as claimed in any preceding Claim wherein the Solar power means comprises at least one thin film photovoltaic module.
14. Apparatus as claimed in any preceding Claim wherein the heat exchange means is located within a luggage - carrying compartment of the vehicle.
15. Apparatus as claimed in any preceding Claim wherein the vehicle is a car.
16. Apparatus for heating and/or cooling the interior of a vehicle substantially as hereinbefore described and with reference to the accompanying drawing.
17. A method of heating or cooling the interior of a vehicle comprising generating electrical power from Solar radiation incident on the exterior of the vehicle to power heat exchange means adapted to add heat to and absorb heat from air circulating within the vehicle according to whether the temperature within the vehicle is below or above a predetermined temperature range.
18. A method of heating and/or cooling the interior of a vehicle substantially as hereinbefore described.
GB9619508A 1996-09-18 1996-09-18 Solar powered air conditioning Expired - Fee Related GB2317445B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9619508A GB2317445B (en) 1996-09-18 1996-09-18 Solar powered air conditioning

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9619508A GB2317445B (en) 1996-09-18 1996-09-18 Solar powered air conditioning

Publications (3)

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GB9619508D0 GB9619508D0 (en) 1996-10-30
GB2317445A true GB2317445A (en) 1998-03-25
GB2317445B GB2317445B (en) 2000-07-05

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Family Applications (1)

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19652478A1 (en) * 1996-12-17 1998-06-18 Peter Fabritz Small, flat air conditioning unit, e.g. for passenger cars, buses, lorries etc
GB2351769A (en) * 1999-07-02 2001-01-10 Trevor Douglas Bonnick Auxiliary or emergency heating system for a vehicle
US6380481B1 (en) * 2000-05-31 2002-04-30 Mueller Hermann-Frank Method and apparatus for supplying solar energy for operation of a vehicle
EP1097827A3 (en) * 1999-11-05 2003-09-03 Webasto Systemkomponenten GmbH & Co. KG Ventilation device for the seat of a vehicle
US6626003B1 (en) * 1999-01-30 2003-09-30 Webasto Vehicle Systems International Gmbh Process for auxiliary air conditioning of a motor vehicle
FR2913919A1 (en) * 2007-03-23 2008-09-26 Valeo Systemes Thermiques Ventilating, heating and air conditioning auxiliary installation for motor vehicle, has management unit managing operation of auxiliary installation for selecting electrical power supply sources supplying electrical units
EP2422424A1 (en) * 2009-04-20 2012-02-29 Green Solar Transportation LLC Method for generating electricity from solar panels
US8316650B2 (en) 2009-05-21 2012-11-27 GM Global Technology Operations LLC System and method for heating and cooling a vehicle
JP2013107554A (en) * 2011-11-22 2013-06-06 Toyota Motor Corp Vehicle
US8919140B2 (en) 2012-01-23 2014-12-30 Caterpillar Inc. Method and apparatus providing auxiliary cabin cooling
US20150053369A1 (en) * 2013-08-23 2015-02-26 Horton Emergency Vehicles Air conditioning condenser system for a vehicle
CN109941064A (en) * 2019-02-15 2019-06-28 苏州工业园区职业技术学院 A kind of solar powered control system for air conditioning for automobiles

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109435631A (en) * 2018-11-22 2019-03-08 深圳职业技术学院 Automotive air-conditioning system and its control method, automobile

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2220738A (en) * 1988-06-08 1990-01-17 Ciew Chang Pey Solar-powered cooling/heating systems
US5040455A (en) * 1989-06-16 1991-08-20 Mazda Motor Corporation Ventilation device for automobiles
GB2243438A (en) * 1990-04-25 1991-10-30 Hwang Feng Lin Apparatus for controlling the interior temperature of a vehicle
GB2274003A (en) * 1992-12-14 1994-07-06 Shunji Ohba Car ventilating device
GB2279453A (en) * 1993-06-10 1995-01-04 Intersolar Group Ltd A ventilator powered by solar radiation
US5588909A (en) * 1995-06-01 1996-12-31 Ferng; Shing-Lai Solar power-operated cooling system for motor vehicles

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4658597A (en) * 1985-07-03 1987-04-21 Shu Shum Solar powered automobile cooling system
GB2241378A (en) * 1990-02-27 1991-08-28 Robert Forsyth Portable electronic air-conditioner

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2220738A (en) * 1988-06-08 1990-01-17 Ciew Chang Pey Solar-powered cooling/heating systems
US5040455A (en) * 1989-06-16 1991-08-20 Mazda Motor Corporation Ventilation device for automobiles
GB2243438A (en) * 1990-04-25 1991-10-30 Hwang Feng Lin Apparatus for controlling the interior temperature of a vehicle
GB2274003A (en) * 1992-12-14 1994-07-06 Shunji Ohba Car ventilating device
GB2279453A (en) * 1993-06-10 1995-01-04 Intersolar Group Ltd A ventilator powered by solar radiation
US5588909A (en) * 1995-06-01 1996-12-31 Ferng; Shing-Lai Solar power-operated cooling system for motor vehicles

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19652478A1 (en) * 1996-12-17 1998-06-18 Peter Fabritz Small, flat air conditioning unit, e.g. for passenger cars, buses, lorries etc
US6626003B1 (en) * 1999-01-30 2003-09-30 Webasto Vehicle Systems International Gmbh Process for auxiliary air conditioning of a motor vehicle
GB2351769A (en) * 1999-07-02 2001-01-10 Trevor Douglas Bonnick Auxiliary or emergency heating system for a vehicle
EP1097827A3 (en) * 1999-11-05 2003-09-03 Webasto Systemkomponenten GmbH & Co. KG Ventilation device for the seat of a vehicle
US6380481B1 (en) * 2000-05-31 2002-04-30 Mueller Hermann-Frank Method and apparatus for supplying solar energy for operation of a vehicle
FR2913919A1 (en) * 2007-03-23 2008-09-26 Valeo Systemes Thermiques Ventilating, heating and air conditioning auxiliary installation for motor vehicle, has management unit managing operation of auxiliary installation for selecting electrical power supply sources supplying electrical units
EP2422424A1 (en) * 2009-04-20 2012-02-29 Green Solar Transportation LLC Method for generating electricity from solar panels
EP2422424A4 (en) * 2009-04-20 2013-06-05 Green Solar Transp Llc Method for generating electricity from solar panels
US8316650B2 (en) 2009-05-21 2012-11-27 GM Global Technology Operations LLC System and method for heating and cooling a vehicle
JP2013107554A (en) * 2011-11-22 2013-06-06 Toyota Motor Corp Vehicle
US8919140B2 (en) 2012-01-23 2014-12-30 Caterpillar Inc. Method and apparatus providing auxiliary cabin cooling
US20150053369A1 (en) * 2013-08-23 2015-02-26 Horton Emergency Vehicles Air conditioning condenser system for a vehicle
US9738137B2 (en) * 2013-08-23 2017-08-22 Halcore Group, Inc. Air conditioning condenser system for a vehicle
CN109941064A (en) * 2019-02-15 2019-06-28 苏州工业园区职业技术学院 A kind of solar powered control system for air conditioning for automobiles

Also Published As

Publication number Publication date
GB9619508D0 (en) 1996-10-30
GB2317445B (en) 2000-07-05

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Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20070918