WO2002060710A1 - System and method for cooling the air in vehicles using lpg or cng as a fuel - Google Patents
System and method for cooling the air in vehicles using lpg or cng as a fuel Download PDFInfo
- Publication number
- WO2002060710A1 WO2002060710A1 PCT/BG2002/000001 BG0200001W WO02060710A1 WO 2002060710 A1 WO2002060710 A1 WO 2002060710A1 BG 0200001 W BG0200001 W BG 0200001W WO 02060710 A1 WO02060710 A1 WO 02060710A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- vaporizer
- coolant
- valves
- lpg
- additional
- Prior art date
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 14
- 238000001816 cooling Methods 0.000 title claims description 16
- 238000000034 method Methods 0.000 title claims description 4
- 239000002826 coolant Substances 0.000 claims abstract description 63
- 239000006200 vaporizer Substances 0.000 claims abstract description 51
- 238000001704 evaporation Methods 0.000 claims abstract description 7
- 230000008020 evaporation Effects 0.000 claims abstract description 7
- 210000002816 gill Anatomy 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 125000004122 cyclic group Chemical group 0.000 abstract 1
- 239000003915 liquefied petroleum gas Substances 0.000 description 34
- 239000007789 gas Substances 0.000 description 14
- 238000010276 construction Methods 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009313 farming Methods 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 235000020030 perry Nutrition 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00421—Driving arrangements for parts of a vehicle air-conditioning
- B60H1/00435—Driving arrangements for parts of a vehicle air-conditioning fluid or pneumatic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H1/3202—Cooling devices using evaporation, i.e. not including a compressor, e.g. involving fuel or water evaporation
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
My invention refers to the field of automobile gas systems and airconditioners for cars. It is a structure of exiting components. It provides the necessary heat for the evaporation of the LPG or the expansion of the CNG from the air in the cabin. This is achieved, via lines and switch-over elements (1, 2, 3 and 4) with lightly control of the flow /motor-valves, servo-valves or thermostatic valves/ an additional coolant line between the additional vaporizer (8) and the radiator (6) is formed. The main advantage is that the system guarantees the normal work of the engine (5) in all working regimes /regardless to the passing fuel consumption/ without cyclic icing and de-icing of the vaporizer. This is a result from the stable temperature regime in the additional vaporizer (8) achieved by the feedback between the temperature in the warm-up volume and the mixing proportion (V1: V2) of cold coolant (V1) from the additional coolant line and hot coolant (V2) from the engine (5), via usage of thermostatic valves (1 and 2). The valves' sensors are installed in the additional coolant line and thus the coolant is supplied in the necessary quantity in order to achieve constant temperature.
Description
DESCRIPTION
SYSTEM AND METHOD FOR COOLING THE AIR IN VEHUCLES USING LPG OR CNG AS A FUEL
Area oftechnic
The invention refers to the area of automobile gas systems and airconditioners for cars. Also it can be applied in trucks, farming machinery and other vehicles, that use liquefied petroleum gas /LPG/ or compressed gas /CNG/ as a fuel.
Former condition of the technic
It's well known, that the air-conditioning in vehicles needs heating during the winter ant cooling during the summer. The heating effect is achieved via radiator, where the coolant of the engine circulates. The cooling effect is achieved via a refrigerator installation - compressor, condensing element and vaporizing element.
This system has the following disadvantages:
- high price - over $1000, that is why it's not installed in all vehicles;
- energy consumption - it increases the fuel consumption with 1-1,5 1 per 100 km.
- It bereaves of the engine power, which leads to worse dynamic performance of the vehicle, when the air-conditioner is switched on.
There is a list of the existing patents:
In USA:
2183452 Dec, 1939 Gibbs et al. 62/7. 2224740 Dec, 1940 Melcher 62/7. 2227927 Jan., 1941 Downs 62/7. 2753856 Jul., 1956 Rush 62/7. 3021681 Feb., 1962 Perry 62/238. 5314007 May., 1994 Christenson 165/43 5560212 Oct., 1996 Hansen 62/7
US Pat. Ns 5560212 discloses an air-conditioning system for cooling the cabin of a vehicle, that use LPG or CNG as a fuel, comprising standard vaporizer, fit between the LPG tank and the engine, valves and another tank for accumulation of the coolant in the additional coolant line. It also comprises a de-icing cycle controlled by sensors and valves.
The known prior art is described above. None of the known prior art discloses the system and the method set forth herein.
Technical data of the invention
One of the aim is, the invention to make the air-cooling in the vehicles so cheap so the system can be installed in every vehicle with less changes in price.
Another aim is the invention to provide stability of the engine and simplicity of the construction.
Another aim is the invention to keep steady the fuel consumtion, when the system is switched on.
Another aim is the invention not to worsen the dynamic performance of the vehicle.
Additional aim is the invention to make possible the start of cold engine /without switching over to gasoline, till the engine is heated/.
In compliance with the invention this aims are achieved with the installation of an additional one degree vaporizer between the LPG tank and the vaporizer of the automobile gas system. The warm-up volume of the additional vaporizer is part of an additional coolant line together with the radiator of the heater in the cabin. The circulating coolant in this line provides the heat needed for evaporation of the LPG or for expansion of the CNG. The construction of the one degree vaporizer provides the heat transfer between the LPG and the coolant in the additional coolant line despite the substantially lower temperature of the coolant. In order "to cool" the air in the cabin the temperature of the coolant in the
additional coolant line must be 12-20°C substantially lower than 80-90°C - the temperature of the coolant in the engine, the standard vaporizers are built for. According to the formula for heat transfer between two media with different temperatures through baffle with gauge - d, area - S and coefficient of heat conductivity - λ - Q=S.ΔT. λ/d. As soon as ΔT reduces 5-6 times in order to provide the heat transfer needed for LPG evaporation for the normal supply of the engine in all working regimes, the area S must be increased /via gills/, likewise the coefficient λ, via use of materials higher heat conductivity - aluminum, cooper.
The installed valves /motor, servo, thermostatic/ sense constantly the temperature in the additional vaporizer and mix /as in showermaster/ cold coolant Nl from the additional coolant line and hot coolant N2 from the engine - depending on the needed quantity vaporized gas /according the passing fuel consumption/.these valves keep constant feedback, and as a result the additional vaporizer works in isothermal regime - according to the temperature it is built for
- without icing and de-icing cycle as in US Pat. JYs 5560212.
The system transfers heat /cools/ from the air in the cabin of LPG vehicles to the additional vaporizer. It uses "the hidden heat of the evaporation" / term in thermodynamics - quantity heat that must be imported into 1 kg liquid , heated to boiling point in order to transform the liquid into vapor with the same temperature
- energy of phase transition/. With CΝG as fuel the additional vaporizer is cooled again due to the gas expansion /according to the formula for condition - Klapeiron-Mendeleev/.
To transfer the heat from the air in the cabin to the additional vaporizer the it's used the coolant, that circulates in the cooling system of the engine, in the standard vaporizer and the radiator. To achieve that a new coolant line is built between the additional vaporizer and the radiator. In another variant of the invention the additional vaporizer is replaced with specially built reducing degree for high pressure of modified two- or three-degree vaporizer. Then the additional coolant line is formed between the warm-up volume of the reducing degree for
high pressure and the radiator of the car heater. That's why the worm-up volume of the standard vaporizer is divided in two separate volumes - warm-up volume of the reducing degree for high pressure and warm-up volume of the reducing degree for low pressure. In practice this means that both reducing degrees are separated in two particular bodies, in order to stop the heat exchange between them. This new coolant line is formed between two valves /thermostatic, motor, servo/ controlled by thermo-controller according to the temperature in the warm-up volume of the reducing degree for high pressure. The first valve is installed on the line that supplies the coolant from the engine to the warm-up volume of the reducing degree for high pressure of the modified vaporizer and to the radiator. The second valve is installed on the line that leads away the coolant from the warm-up volume of the reducing degree for high pressure of the modified vaporizer and from the radiator to the cooling system of the engine.
The technical effect is a result from the advantages of the invented system and method compared to the existing models:
- guarantees the stable work of the engine in al regimes, and supports constant feedback between the passing fuel consumption /viz. the quantity heat needed for gas evaporation, viz. the temperature in the warm-up volume of the additional vaporizer or the warm-up volume of the reducing degree for high pressure/ and the proportion of mixed cold coolant Nl from the additional coolant line and hot coolant N2 from the cooling system of the engine and thus guarantees the work of the vaporizer with pre-programmed constant temperature - the one it's built for;
- as a result from the special construction of the one-degree vaporizer, it works with coolant temperature 12-20°C, and really coos the air in the cabin;
- does not decrease the power of the engine and does not worsen the dynamic performance of the vehicle;
- makes possible the start of cold engine, via the gas system, because it doesn't allows the vaporizer to ice - it takes only to start the system 5 sec. before the start of the engine;
- high reliability and easy to install /due to the simplicity of the construction/;
- accessibility for mass use due to the low price /replacement of motor- valves with thermostatic valves/;
- possibility to be installed in vehicles with standard gas systems, that are already operative.
Description of the figures
Figure 1 - first variant of the system for cooling the air in vehicles, that use LPG or CNG as a fuel.
Figure 2 - second variant of the system for cooling the air in vehicles, that use LPG or CNG as a fuel.
Examples for execution of the invention
Example JNsl
As seen in Fig. 1,. one variant execution of the invention comprises electromagnetic servo-valves controlled by thermo-controller according to the temperature in warm-up volume 19 of reducing degree for high pressure 13, installed on the line that supplies coolant from the engine 5 through line 16 to warm-up volume 19 of reducing degree for high pressure 13 of LPG vaporizer 7 and radiator 6. For this purpose a heat baffle 11 divides the warm-up volume of LPG vaporizer 7 in two warm-up volume 19 of reducing degree for high pressure 13 and warm-up volume 20 of reducing degree for low pressure 14. In practice this means that both reducing degrees to be divided in two separate bodies and
reducing degree for high pressure 13 to be built to work with lower temperature of the coolant. An electromagnetic servo-valve 2 controlled by thermo-controller according to the temperature in the warm-up volume 19 of reducing degree for high pressure 13, installed on the line that leads away the coolant through line 18 from warm-up volume 19 of reducing degree for high pressure 13 of LPG vaporizer 7 and radiator 6 to the cooling system of the engine 5. The coolant flows through line 15 in the warm-up volume 20 of reducing degree for low pressure 14 and then through line 17 to the engine 5, and thus heats the vaporized LPG and supplies it to the velocity gas distributor 12. The control is performed by electromagnetic switch or electronic control panel connected with the thermo- controller of the temperature in the warm-up volume 19 of reducing degree for high pressure 13, which are not part of the invention and are riot shown in the figures.
In position "off of the system, electromagnetic servo- valves 1 and 2 are open and the hot coolant from the engine 5, heats both reducing degrees of the LPG vaporizer 7.
In position "on" of the system electromagnetic servo-valves 1 and 2 reduce the flow of the coolant from and to engine 5, according to the heat consumption /this flow can be stopped/, as electric pump 9 is on and provides the circulation of the coolant only between the radiator 6 and the warm-up volume 19 of reducing degree for high pressure 13. The LPG flows from tank 10 in reducing degree for high pressure 13, there it vaporizes and cools the coolant, that flows to the radiator 6 and cools it, and via it the air in the cabin. As a result, when the system is on and the heater of the vehicle is on too, cooled air enters the cabin., in order to prevent icing of the LPG vaporizer 7 /due to the low temperature of the coolant in the radiator 6 compared to the temperature of the coolant in the engine 5/, it's necessary the warm-up volume 19 of reducing degree for high pressure 13 to be constructed with gills, electric pump 9 to provide faster circulation of the coolant and servo-valves 1 and 2 to let warm coolant from the engine 5, as thermo-
controller via them keeps pre-programmed temperature 12-20°C in the warm-up volume 19 of reducing degree for high pressure 13.
Example N°2
As seen in Fig. 2 this execution of the invention comprises electromagnetic servo-valve 1, installed on the line that supplies coolant from the engine 5 and standard LPG vaporizer 7 to the radiator 6. Electromagnetic servo-valve 2 that leads away the coolant from the radiator 6 to the standard LPG vaporizer 7 and to the cooling system of the engine 5. Additional one-degree vaporizer 8 and consecutively connected to it electric pump 9 are installed to the both coolant lines parallel to the radiator 6 and after electromagnetic servo-valves 1 and 2 /seen from the engine 5/. The pump 9 provides the circulation of the coolant' in the additional coolant line, when the electromagnetic servo-valves are activated by the thermo- controller.
Taps to the additional one-degree vaporizer 8 are installed on the LPG line between the LPG tank 10 and the standard LPG vaporizer 7. Valves 3 and 4 are installed to let the LPG through additional vaporizer 8 to the standard LPG vaporizer 7, or directly through the standard LPG vaporizer 7 /when the system is off/. The control is performed by an electronic control panel in the cabin, which is not a part of the invention and therefore it's not shown in the figures.
In position "off of the system electromagnetic valves 1 and 2 and valve 3 are open, and valve 4 is closed, electric pump 9 is off and the gas system of the vehicle operates as usual - standard LPG vaporizer passes the vaporized gas the velocity gas distributor 12 and then to the engine 5.
In position "on" of the system electromagnetic servo-valves are activated by the thermo-controller, valve 3 is closed and valve 4 is open. The LPG passes from LPG tank 10 through valve 4 to the additional vaporizer 8, then to the standard LPG vaporizer 7 and then to the engine 5.
As a result, when the system and the heater of the vehicle are on, cooled air enters the cabin. Servo-valves 1 and 2 can be replaced with motor-valves, controlled by thermo-controller according to the temperature in the warm-up volume of the additional vaporizer 8. Or thermostatic valves, that keep preprogrammed temperature in the warm-up volume of the additional vaporizer 8 as they let the necessary quantity of hot coolant from the engine 5 and thus prevent the vaporizer 8 from icing when the LPG consumption is higher.
Application of the invention
The invented system for cooling the air in vehicles, that use LPG or CNG as a fuel, can be installed together with the standard gas system in the vehicle. Also it can be installed in vehicles with gas system, that are already operating.
Necessary condition for the work of the system is the LPG consumption, viz. the engine must be working. It's alike the existing air-conditioning systems for cars.
When the system is off the valves are open for the coolant in the existion coolant line.
In position on of the system the valves reduce the flow of the coolant from and to the engine and thus in the additional coolant line, an electric pump provides fast circulation of the coolant / since the volume of the coolant in this additional line is few times smaller than the whole quantity in the cooling system and its temperature is lower than the temperature of the coolant from the engine, so it's necessary the warm-up volume of the additional vaporizer /or warm-up volume of reducing degree for high pressure/ to be constructed with gills, in order to be provided the heat exchange/. Also the coolant from the additional coolant line and the coolant from the engine mix /constantly/ in different proportion N1:V2 to achieve constant pre-programmed optimal temperature for evaporation of the LPG in the additional vaporizer or in the reducing degree for high pressure and thus
prevent the from icing regardless to the regime of the engine - no need of de-icing cycle. Experts easily can change or modify the invention described above. That is why the applicant endeavors to bind with the scope of the applied claims Application: 2 figures.
Claims
1. System for cooling the air in vehicles, that use liquefied gas or compressed gas as a fuel comprising:
- radiator 6 of the car heater in the cabin
- electric pump 9, installed in the additional coolant line
- coolant of the engine
- lines among the elements characterizing with,
- specially constructed one-degree vaporizer 8 connected via lines between the LPG tank 10 and the standard LPG vaporizer 7 of the automobile gas system, or warm-up volume 19 of reducing degree for high pressure 13 of specially constructed vaporizer 7 with divided reducing degrees for high and low pressure in two separate bodies via heat baffle 11,
- motor-valves, servo-valves or thermostatic valves 1 and 2 with lightly control of the flow.
2. System, of claim 1, characterizing with one-degree vaporizer 8 connected via lines between the LPG tank 10 and the standard LPG vaporizer 7 of the automobile gas system, or warm-up volume 19 of reducing degree for high pressure 13 of specially constructed vaporizer 7 with divided reducing degrees for high and low pressure in 'two separate bodies via heat baffle 11, are constructed with increased area S, via gills and usage of materials with higher coefficient of heat conductivity λ.
3. Method for cooling the air in vehicles, that use liquefied gas or compressed gas as a fuel characterizing with: provides the necessary heat for evaporation of the liquefied gas or foe the expansion of the compressed gas, from the air in the cabin of the vehicle, as in the additional coolant line cooled coolant Nl from the radiator 6 and hot coolant from the N2 from the engine 5 mix constantly in different proportion via motor-valves, servo-valves or thermostatic valves 1 and 2 with lightly control of the flow.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BG105182 | 2001-01-25 | ||
| BG105182A BG105182A (en) | 2001-01-25 | 2001-01-25 | System and method for air cooling in transport vehicles using liquefied or compressed gas for fuel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2002060710A1 true WO2002060710A1 (en) | 2002-08-08 |
Family
ID=3928288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/BG2002/000001 WO2002060710A1 (en) | 2001-01-25 | 2002-01-17 | System and method for cooling the air in vehicles using lpg or cng as a fuel |
Country Status (2)
| Country | Link |
|---|---|
| BG (1) | BG105182A (en) |
| WO (1) | WO2002060710A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT201700099422A1 (en) * | 2017-09-05 | 2019-03-05 | Iveco Magirus | AIR-CONDITIONING SYSTEM FOR A GAS VEHICLE |
| WO2022100977A1 (en) * | 2020-11-13 | 2022-05-19 | Robert Bosch Gmbh | Cooling device for a vehicle and method for operating a cooling device for a vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2872790A (en) * | 1956-02-08 | 1959-02-10 | Arthur A Simpson | Refrigerator for use in connection with engines utilizing volatile fuel |
| DE2158183A1 (en) * | 1971-11-24 | 1973-05-30 | Webasto Werk Baier Kg W | COOLING SYSTEM FOR VEHICLES |
| EP0599611A2 (en) * | 1992-11-27 | 1994-06-01 | Thermo King Corporation | Air conditioning and refrigeration systems utilizing a cryogen |
| US5560212A (en) * | 1995-06-26 | 1996-10-01 | Hansen; William L. | Vehicle air conditioning system using liquid gas |
| FR2773115A1 (en) * | 1997-12-30 | 1999-07-02 | Francois Mundler | System for cooling air inside passenger compartment of motor vehicle |
-
2001
- 2001-01-25 BG BG105182A patent/BG105182A/en unknown
-
2002
- 2002-01-17 WO PCT/BG2002/000001 patent/WO2002060710A1/en not_active Application Discontinuation
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2872790A (en) * | 1956-02-08 | 1959-02-10 | Arthur A Simpson | Refrigerator for use in connection with engines utilizing volatile fuel |
| DE2158183A1 (en) * | 1971-11-24 | 1973-05-30 | Webasto Werk Baier Kg W | COOLING SYSTEM FOR VEHICLES |
| EP0599611A2 (en) * | 1992-11-27 | 1994-06-01 | Thermo King Corporation | Air conditioning and refrigeration systems utilizing a cryogen |
| US5560212A (en) * | 1995-06-26 | 1996-10-01 | Hansen; William L. | Vehicle air conditioning system using liquid gas |
| FR2773115A1 (en) * | 1997-12-30 | 1999-07-02 | Francois Mundler | System for cooling air inside passenger compartment of motor vehicle |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT201700099422A1 (en) * | 2017-09-05 | 2019-03-05 | Iveco Magirus | AIR-CONDITIONING SYSTEM FOR A GAS VEHICLE |
| EP3450228A1 (en) * | 2017-09-05 | 2019-03-06 | Iveco Magirus Ag | Conditioning system for a gas vehicle |
| WO2022100977A1 (en) * | 2020-11-13 | 2022-05-19 | Robert Bosch Gmbh | Cooling device for a vehicle and method for operating a cooling device for a vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| BG105182A (en) | 2002-07-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11091007B2 (en) | System for thermal management of the components of a hybrid vehicle | |
| JP5678137B2 (en) | Apparatus and method for heat dispersion in automobiles | |
| US7841431B2 (en) | Electric vehicle thermal management system | |
| US20020014329A1 (en) | Integrated heating and cooling system for a vehicle | |
| CN110001352A (en) | New-energy automobile and its heat management device | |
| CN102668228A (en) | Method for controlling the temperature of an electrical power source of a vehicle | |
| US20080148755A1 (en) | Cooling apparatus for on-vehicle electronic device | |
| US20100071386A1 (en) | Cooling Device for Installation in an Aircraft | |
| GB2379972A (en) | Integrated heat pump and vehicle coolant circuit | |
| US20010001982A1 (en) | Heating and air conditioning unit of a motor vehicle | |
| WO2012080771A1 (en) | Truck with a refrigerated compartment | |
| CN104534735A (en) | Cold and hot integrated type automobile air conditioning system | |
| CN105626318A (en) | Vehicle LNG vaporizer with phase change heat storage materials | |
| CN103863055A (en) | Air-conditioning apparatus for vehicle | |
| CN106460613A (en) | System for heating a storage container for an aqueous operating liquid in a motor vehicle and method for heating the storage container | |
| US20180297447A1 (en) | Air conditioning system for vehicle and vehicle having same | |
| WO2002060710A1 (en) | System and method for cooling the air in vehicles using lpg or cng as a fuel | |
| KR101843745B1 (en) | Cooling and heating system for bus vehicle | |
| US20180162198A1 (en) | Air conditioning system for vehicle and vehicle having same | |
| JP2014114803A (en) | Return fuel cooling system for lpi vehicle | |
| EP3735359B1 (en) | Air conditioner for motor vehicles | |
| WO2016202198A1 (en) | Air conditioning system for vehicle and vehicle having same | |
| CN114834214A (en) | Air conditioning system for a motor vehicle | |
| US20180340740A1 (en) | Use of a phase change material system | |
| GB2383839A (en) | A liquified gaseous fuel powered vehicle and air conditioner. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TN TR TT TZ UA UG US UZ VN YU ZA ZM ZW |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
| REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
| 122 | Ep: pct application non-entry in european phase | ||
| NENP | Non-entry into the national phase |
Ref country code: JP |
|
| WWW | Wipo information: withdrawn in national office |
Country of ref document: JP |