US20020162644A1 - Device for air temperature control in a vehicle - Google Patents
Device for air temperature control in a vehicle Download PDFInfo
- Publication number
- US20020162644A1 US20020162644A1 US10/178,006 US17800602A US2002162644A1 US 20020162644 A1 US20020162644 A1 US 20020162644A1 US 17800602 A US17800602 A US 17800602A US 2002162644 A1 US2002162644 A1 US 2002162644A1
- Authority
- US
- United States
- Prior art keywords
- coolant
- refrigerant
- circuit
- air
- vehicle
- 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.)
- Abandoned
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Classifications
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- 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
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
- B60H1/00885—Controlling the flow of heating or cooling liquid, e.g. valves or pumps
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- 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
- B60H1/00007—Combined heating, ventilating, or cooling devices
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- 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
- B60H1/02—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant
- B60H1/04—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant from cooling liquid of the plant
- B60H1/08—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant from cooling liquid of the plant from other radiator than main radiator
- B60H1/10—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant from cooling liquid of the plant from other radiator than main radiator the other radiator being situated in a duct capable of being connected to atmosphere outside vehicle
- B60H1/12—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant from cooling liquid of the plant from other radiator than main radiator the other radiator being situated in a duct capable of being connected to atmosphere outside vehicle using an air blower
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- 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
- B60H1/3204—Cooling devices using compression
- B60H1/3228—Cooling devices using compression characterised by refrigerant circuit configurations
- B60H1/32281—Cooling devices using compression characterised by refrigerant circuit configurations comprising a single secondary circuit, e.g. at evaporator or condenser side
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- 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
- B60H1/3204—Cooling devices using compression
- B60H1/323—Cooling devices using compression characterised by comprising auxiliary or multiple systems, e.g. plurality of evaporators, or by involving auxiliary cooling devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B25/00—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00
- F25B25/005—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00 using primary and secondary systems
-
- 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
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
- B60H2001/00928—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices comprising a secondary circuit
Definitions
- the present invention relates to a device for controlling air temperature in a vehicle.
- Air controlling or air conditioning devices which use an evaporator and a fan supplying the cooled air and located in the vehicle compartment under a dashboard. In this construction the air guides are separated from the heater. Such a location of the air conditioning device distorts comfort layers in the vehicle space by introducing a concentrated mass of cooled air into the central part of the space which settles in the lower part of the space. Hot air is displaced to the sealing. The separation of the air conditioning unit and the heating unit are not advisable, also due to increased costs.
- Another automobile air conditioner uses a refrigerating system driven by the car engine to furnish cooling action.
- Warm engine coolant usually provides heat to the passenger compartment when needed. Conditioning the air in the interior of a car involves heating and cooling.
- the heat to warm the passenger is usually provided by circulating of hot coolant through a heater core.
- the engine water pump forces the warm coolant through the heater hoses and inside of the heater core.
- the air conditioning system is brought into operation. It uses an evaporator inside a plenum chamber to cool the air circulated through the passenger compartment.
- the car engine using a belt, drives the compressor to pump through the system.
- a device which has means forming a first circuit for circulation of a coolant; means forming a second circuit for circulation of a refrigerant; means for connecting said first circuit with an engine for heating the coolant; means for providing a heat exchange between said second circuit and said first circuit for cooling said coolant; a single air temperature regulating element; and means for alternatively connecting said first means to said single air temperature regulating element so that when said coolant is heated from the engine and supplied through said first means said single air temperature regulating element heats air in the vehicle, or connecting said second means with said single air temperature regulating element so that when said coolant in said first circuit is cooled by heat exchange with the refrigerant of the second circuit and the cooled coolant is supplied to said single air temperature regulating element to cool air in the vehicle; and a heat exchanger which provides a heat exchange between the coolant of said first circuit and the refrigerant of said second circuit;
- the device When the device is designed in accordance with the present invention it eliminates the disadvantages of the prior art and provides for the highly advantageous results in improvement of a comfortability of air heating or cooling and reducing the costs of the system of air temperature control.
- the present invention excludes evaporator, a heater-exchanger is installed instead, and is formed in a special inventive way to provide efficient and reliable operation of the system.
- FIG. 1 is a view schematically showing a device for air temperature control in a vehicle.
- FIG. 2 is a view showing the inventive device mounted in a vehicle.
- a device for air temperature control in a vehicle has an air outlet unit provided in several outlets and identified with reference numeral 1 .
- a known heater core 2 is located before an inlet of the unit 1 , and a fan 3 which is driven by a motor 4 is located behind the heater core so as to blow air with a temperature provided by the heater core into the air outlet unit 1 .
- the motor 4 can be adjusted by an adjusting member 4 ′, to thereby adjust the flow of air from the fan 3 .
- a vehicle engine 5 is connected by a hot coolant supply conduit 6 with the heater core 2 .
- a valve 7 is located between the conduit 6 and the heater core 2 .
- a return conduit 8 connects the outlet of the heater core 2 to the engine 5 and is provided with a control valve 23 .
- a valve 9 controls a portion of the hot coolant in the heater core 2 for temperature control.
- the device further has a compressor 10 which supplies a vaporous refrigerant to a condenser 11 .
- the thusly liquified refrigerant is supplied through a refrigerant supply conduit 12 into a heat exchanger 13 in which it cools the coolant and is returned through a return conduit 14 .
- An expansion valve 15 is provided in the refrigerant supply conduit 12 .
- a thermostat 16 operates a solenoid clutch 17 from the motor 5 controls an operation time of the compressor and therefore a cooling operation of the system.
- the coolant which is cooled in the heat exchanger 13 in heat exchange with the refrigerant is supplied through the cold coolant supply conduit 17 by a water pump 18 operated by a motor 19 , to the heater core 2 .
- a valve 20 is provided in the conduit 17 .
- An coolant return conduit 21 connects an outlet of the heater core 2 with the heat exchanger 13 and is provided with a valve 22 .
- a valve 9 controls a portion of the hot coolant in the heater core for temperature control.
- the device for controlling air temperature in a vehicle in accordance with the present invention operates in the following manner.
- valves 20 and 22 are closed and the valves 7 and 23 are open.
- the coolant heated by the engine 5 is supplied through the conduit 6 into the heat core and heats the same, and the blower 3 blows the air through the heated heater core 2 into the air outlet unit 1 so as to heat the inner space of the vehicle.
- the slightly cooled coolant is returned back to the engine 5 through the conduit 8 .
- valves 7 and 23 are closed and the valves 20 and 22 are open.
- the coolant which is cooled in the heat exchanger 13 is supplied through the conduit 17 into the heater core 2 and cools the same, and the blower 3 blows cold air into the air outlet unit 1 , whereupon the slightly heated air coolant is returned back into the heat exchanger 13 through the conduit 21 .
- the temperature therefore can be controlled by the use of the valve 9 for controlling a portion of coolant and thereby temperature of air flowing out of the output 1 , the temperature of coolant can be controlled by the thermostat 25 cooperating with the clutch 16 , and the speed of the fan 3 can be controlled manually by the member 4 ′.
- These controls can be performed individually and separately from one another, or jointly.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
In a device for air temperature control in a vehicle either by use of a valve unit to control a portion of coolant and thereby the temperature of air flowing from the temperature control element, by a temperature of coolant controlled by said thermostat, or by speed of said fan, individually and independently from one another.
Description
- This application is a continuation of patent application Ser. No. 09/597,709 filed on Jun. 21, 2000 which in turn is a continuation-in-part of patent application Ser. No. 09/210,695 filed on Dec. 14, 1998.
- The present invention relates to a device for controlling air temperature in a vehicle.
- Devices of the above mentioned general type are known in the art. Air controlling or air conditioning devices are known which use an evaporator and a fan supplying the cooled air and located in the vehicle compartment under a dashboard. In this construction the air guides are separated from the heater. Such a location of the air conditioning device distorts comfort layers in the vehicle space by introducing a concentrated mass of cooled air into the central part of the space which settles in the lower part of the space. Hot air is displaced to the sealing. The separation of the air conditioning unit and the heating unit are not advisable, also due to increased costs.
- When a car travels at high speed on a hot summer day, it will require considerable refrigerating capacity to keep the interior at a comfortable temperature. The same car, traveling on a cold winter day, will require considerable heating capacity.
- Another automobile air conditioner uses a refrigerating system driven by the car engine to furnish cooling action. Warm engine coolant usually provides heat to the passenger compartment when needed. Conditioning the air in the interior of a car involves heating and cooling. The heat to warm the passenger is usually provided by circulating of hot coolant through a heater core. The engine water pump forces the warm coolant through the heater hoses and inside of the heater core. When cooling is needed, the air conditioning system is brought into operation. It uses an evaporator inside a plenum chamber to cool the air circulated through the passenger compartment. The car engine, using a belt, drives the compressor to pump through the system.
- Some devices of the above mentioned general type are disclosed in your U.S. Pat. Nos. 2,017,579; 2,068,475; 2,106,515; 2,787,129; 3,059,449; 3,753,462; 3,990,505; German patents numbers 2,044,958; 2,158,408, 2204950 and 2,101,955; and Japanese patent no. 0217095.
- Accordingly, it is an object of the present invention to provide a device for controlling air temperature in a vehicle, which avoids the disadvantages of the prior art.
- In keeping with these objects and with others which will become apparent hereinafter, one feature of present invention resides, briefly stated, in a device which has means forming a first circuit for circulation of a coolant; means forming a second circuit for circulation of a refrigerant; means for connecting said first circuit with an engine for heating the coolant; means for providing a heat exchange between said second circuit and said first circuit for cooling said coolant; a single air temperature regulating element; and means for alternatively connecting said first means to said single air temperature regulating element so that when said coolant is heated from the engine and supplied through said first means said single air temperature regulating element heats air in the vehicle, or connecting said second means with said single air temperature regulating element so that when said coolant in said first circuit is cooled by heat exchange with the refrigerant of the second circuit and the cooled coolant is supplied to said single air temperature regulating element to cool air in the vehicle; and a heat exchanger which provides a heat exchange between the coolant of said first circuit and the refrigerant of said second circuit; refrigerant supply means for supplying refrigerant into said heat exchanger; and refrigerant withdrawal means connected with said heat exchanger so as to withdraw the refrigerant simultaneously from all said groups, said refrigerant supply means including a compressor which is drivable from a main engine through a clutch and a belt to transmit power from a vehicle engine to said compressor, said clutch being operated and automatically controlled by a thermostat which responds to changes in air temperature within a vehicle compartment, such that operation of said clutch serves for starting and stopping of said compressor in response to changes of temperature in a cooling mode; fan means; and valve means provided between a heater core and said heat exchanger, so that temperature can be controlled either by use of said valve means to control a portion of coolant and the temperature, by a temperature of coolant controlled by said thermostat, or by speed of said fan, individually and independently from one another.
- When the device is designed in accordance with the present invention it eliminates the disadvantages of the prior art and provides for the highly advantageous results in improvement of a comfortability of air heating or cooling and reducing the costs of the system of air temperature control.
- The present invention excludes evaporator, a heater-exchanger is installed instead, and is formed in a special inventive way to provide efficient and reliable operation of the system.
- The novel features which are considered as characteristic for the present invention are set forth in particular in the appended claims. The invention itself, however, both as to its construction and its method of operation, together with additional objects and advantages thereof, will be best understood from the following description of specific embodiments when read in connection with the accompanying drawings.
- FIG. 1 is a view schematically showing a device for air temperature control in a vehicle; and
- FIG. 2 is a view showing the inventive device mounted in a vehicle.
- A device for air temperature control in a vehicle has an air outlet unit provided in several outlets and identified with
reference numeral 1. A knownheater core 2 is located before an inlet of theunit 1, and afan 3 which is driven by amotor 4 is located behind the heater core so as to blow air with a temperature provided by the heater core into theair outlet unit 1. Themotor 4 can be adjusted by an adjustingmember 4′, to thereby adjust the flow of air from thefan 3. - A
vehicle engine 5 is connected by a hotcoolant supply conduit 6 with theheater core 2. Avalve 7 is located between theconduit 6 and theheater core 2. Areturn conduit 8 connects the outlet of theheater core 2 to theengine 5 and is provided with acontrol valve 23. A valve 9 controls a portion of the hot coolant in theheater core 2 for temperature control. - The device further has a
compressor 10 which supplies a vaporous refrigerant to acondenser 11. The thusly liquified refrigerant is supplied through arefrigerant supply conduit 12 into aheat exchanger 13 in which it cools the coolant and is returned through areturn conduit 14. Anexpansion valve 15 is provided in therefrigerant supply conduit 12. Athermostat 16 operates asolenoid clutch 17 from themotor 5 controls an operation time of the compressor and therefore a cooling operation of the system. - The coolant which is cooled in the
heat exchanger 13 in heat exchange with the refrigerant is supplied through the coldcoolant supply conduit 17 by awater pump 18 operated by amotor 19, to theheater core 2. Avalve 20 is provided in theconduit 17. Ancoolant return conduit 21 connects an outlet of theheater core 2 with theheat exchanger 13 and is provided with avalve 22. A valve 9 controls a portion of the hot coolant in the heater core for temperature control. - The device for controlling air temperature in a vehicle in accordance with the present invention operates in the following manner.
- When it is necessary to heat air in vehicle space, the
valves valves engine 5 is supplied through theconduit 6 into the heat core and heats the same, and theblower 3 blows the air through the heatedheater core 2 into theair outlet unit 1 so as to heat the inner space of the vehicle. The slightly cooled coolant is returned back to theengine 5 through theconduit 8. - When it is necessary to cool air in the vehicle space, the
valves valves heat exchanger 13 is supplied through theconduit 17 into theheater core 2 and cools the same, and theblower 3 blows cold air into theair outlet unit 1, whereupon the slightly heated air coolant is returned back into theheat exchanger 13 through theconduit 21. In the inventive device the temperature therefore can be controlled by the use of the valve 9 for controlling a portion of coolant and thereby temperature of air flowing out of theoutput 1, the temperature of coolant can be controlled by thethermostat 25 cooperating with theclutch 16, and the speed of thefan 3 can be controlled manually by themember 4′. These controls can be performed individually and separately from one another, or jointly. - It will be understood that each of the elements described above, or two or more together, may also find a useful application in other types of constructions differing from the types described above.
- While the invention has been illustrated and described as embodied in device for air temperature control in a vehicle, it is not intended to be limited to the details shown, since various modifications and structural changes may be made without departing in any way from the spirit of the present invention.
- Without further analysis, the foregoing will so fully reveal the gist of the present invention that others can, by applying current knowledge, readily adapt it for various applications without omitting features that, from the standpoint of prior art, fairly constitute essential characteristics of the generic or specific aspects of this invention.
- What is claimed as new and desired to be protected by Letters Patent is set forth in the appended claims.
Claims (2)
1. A device for air temperature control in a vehicle, comprising means forming a first circuit for circulation of a coolant; means forming a second circuit for circulation of a refrigerant; means for connecting said first circuit with an engine for heating the coolant; means for providing a heat exchange between said second circuit and said first circuit for cooling said coolant; an air temperature regulating element; and means for alternatively connecting said first means to said air temperature regulating element so that when said coolant is heated from the engine and supplied through said first means said air temperature regulating element heats air in the vehicle, or connecting said second means with said air temperature regulating element so that when said coolant in said first circuit is cooled by heat exchange with the refrigerant of the second circuit and the cooled coolant is supplied to said air temperature regulating element to cool air in the vehicle; and a heat exchanger which provides a heat exchange between the coolant of said first circuit and the refrigerant of said second circuit; refrigerant supply means for supplying refrigerant into said heat exchanger; and refrigerant withdrawal means connected with said heat exchanger so as to withdraw the refrigerant from said heat exchanger, said refrigerant supply means including a compressor which is drivable from a main engine through a clutch and a belt to transmit power from a vehicle engine to said compressor, said clutch being operated and automatically controlled by a thermostat which responds to changes in air temperature within a vehicle compartment, such that operation of said clutch serves for starting and stopping of said compressor in response to changes of temperature in a cooling mode; fan means; and valve means provided between a heater core and said heat exchanger, so that temperature can be controlled either by use of said valve means to control a portion of coolant and thereby the temperature of air flowing from the temperature control element, by a temperature of coolant controlled by said thermostat, or by speed of said fan, individually and independently from one another.
2. A device as defined in claim 1 , wherein said heat exchanger includes a container through which said coolant is passed, and a plurality of tubes extending through said container and through which the refrigerant is passed, said tubes being arranged so as to form a plurality of group of tubes with said groups spaced from one another in a vertical direction and not connected with one another, while the tubes within each group are connected in series with one another, said refrigerant supply means supplying said refrigerant simultaneously into all said groups.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US10/178,006 US20020162644A1 (en) | 1998-12-14 | 2002-06-22 | Device for air temperature control in a vehicle |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US21069598A | 1998-12-14 | 1998-12-14 | |
US09/597,709 US6435273B1 (en) | 1998-12-14 | 2000-06-21 | Device for air temperature control in a vehicle |
US10/178,006 US20020162644A1 (en) | 1998-12-14 | 2002-06-22 | Device for air temperature control in a vehicle |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US09/597,709 Continuation US6435273B1 (en) | 1998-12-14 | 2000-06-21 | Device for air temperature control in a vehicle |
Publications (1)
Publication Number | Publication Date |
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US20020162644A1 true US20020162644A1 (en) | 2002-11-07 |
Family
ID=26905419
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
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US09/597,709 Expired - Fee Related US6435273B1 (en) | 1998-12-14 | 2000-06-21 | Device for air temperature control in a vehicle |
US10/178,006 Abandoned US20020162644A1 (en) | 1998-12-14 | 2002-06-22 | Device for air temperature control in a vehicle |
US10/178,009 Abandoned US20030150594A1 (en) | 1998-12-14 | 2002-06-22 | Device for temperature control in a vehicle |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/597,709 Expired - Fee Related US6435273B1 (en) | 1998-12-14 | 2000-06-21 | Device for air temperature control in a vehicle |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/178,009 Abandoned US20030150594A1 (en) | 1998-12-14 | 2002-06-22 | Device for temperature control in a vehicle |
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US (3) | US6435273B1 (en) |
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US20150165902A1 (en) * | 2012-07-03 | 2015-06-18 | Renault S.A.S. | Vehicle provided with an engine at the rear and having an improved clutch system |
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BE755660A (en) * | 1969-09-04 | 1971-03-03 | Bresin Adam | FLUID EXCHANGER-COOLER, ESPECIALLY GAS AND AIR ( |
DE2044958A1 (en) * | 1969-10-14 | 1971-04-22 | Webasto Werk GmbH, 8031 Stockdorf | Air conditioning for vehicles |
DE2053370A1 (en) * | 1970-10-30 | 1972-05-04 | Robert Bosch Gmbh, 7000 Stuttgart | Device for heating and cooling motor vehicle interiors |
SE357329B (en) * | 1970-11-27 | 1973-06-25 | Saab Scania Ab | |
DE2101955A1 (en) * | 1971-01-16 | 1972-07-20 | Barth, Peter, 7455 Jungingen | Device for cooling the passenger compartment in motor vehicles heated with hot water |
DE2204950A1 (en) * | 1972-02-03 | 1973-08-09 | Rudolf Hintze | REFRIGERATION UNIT WITH CIRCULATING COMPRESSOR CONDENSER / EVAPORATOR UNIT AND BRINE COOLING |
GB1510779A (en) * | 1974-05-24 | 1978-05-17 | Ass Eng Ltd | Air-conditioning systems |
SE7810113L (en) * | 1978-09-26 | 1980-03-27 | Ctc Ab | VERMEVEXLARE |
JPS58211907A (en) * | 1982-06-03 | 1983-12-09 | Nissan Motor Co Ltd | Air conditioning device for vehicle |
JPS59170637A (en) * | 1983-03-16 | 1984-09-26 | Yanmar Diesel Engine Co Ltd | Heat pump system control device for internal-combustion engine |
JPS62217095A (en) * | 1986-03-17 | 1987-09-24 | Hitachi Reinetsu Kk | Heat exchanger of enclosed type tower |
JPH02213680A (en) * | 1989-02-14 | 1990-08-24 | Yanmar Diesel Engine Co Ltd | Refrigerating transport vehicle |
FR2713320B1 (en) * | 1993-12-02 | 1996-02-02 | Mc International | Process for continuous control and defrosting of a refrigeration exchanger and installation equipped with such an exchanger. |
US5904052A (en) * | 1996-09-02 | 1999-05-18 | Denso Corporation | Brine type air conditioning apparatus |
US6105572A (en) * | 1997-11-07 | 2000-08-22 | Alliance Pharmaceutical Corp. | Liquid ventilator |
-
2000
- 2000-06-21 US US09/597,709 patent/US6435273B1/en not_active Expired - Fee Related
-
2002
- 2002-06-22 US US10/178,006 patent/US20020162644A1/en not_active Abandoned
- 2002-06-22 US US10/178,009 patent/US20030150594A1/en not_active Abandoned
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070084938A1 (en) * | 2005-10-18 | 2007-04-19 | Mingsheng Liu | Variable single zone air volume control system and method |
US7264046B1 (en) * | 2007-03-13 | 2007-09-04 | Vladlen Futernik | Air-conditioning system |
US20150165902A1 (en) * | 2012-07-03 | 2015-06-18 | Renault S.A.S. | Vehicle provided with an engine at the rear and having an improved clutch system |
US9604538B2 (en) * | 2012-07-03 | 2017-03-28 | Renault S.A.S. | Vehicle provided with an engine at the rear and having an improved clutch system |
Also Published As
Publication number | Publication date |
---|---|
US20030150594A1 (en) | 2003-08-14 |
US6435273B1 (en) | 2002-08-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |