EP3134282A1 - Heiz- und trocknungsvorrichtung zur verwendung in kraftfahrzeugen - Google Patents
Heiz- und trocknungsvorrichtung zur verwendung in kraftfahrzeugenInfo
- Publication number
- EP3134282A1 EP3134282A1 EP15720649.1A EP15720649A EP3134282A1 EP 3134282 A1 EP3134282 A1 EP 3134282A1 EP 15720649 A EP15720649 A EP 15720649A EP 3134282 A1 EP3134282 A1 EP 3134282A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- adsorbent
- motor vehicle
- temperature
- heating
- air
- 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.)
- Withdrawn
Links
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
- B60H1/00492—Heating, cooling or ventilating [HVAC] devices comprising regenerative heating or cooling means, e.g. heat accumulators
-
- 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
- B60H3/00—Other air-treating devices
- B60H3/02—Moistening ; Devices influencing humidity levels, i.e. humidity control
- B60H3/022—Moistening ; Devices influencing humidity levels, i.e. humidity control for only humidifying the air
-
- 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
- B60H1/3201—Cooling devices using absorption or adsorption
- B60H1/32014—Cooling devices using absorption or adsorption using adsorption, e.g. using Zeolite and water
-
- 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
- B60H3/00—Other air-treating devices
- B60H3/02—Moistening ; Devices influencing humidity levels, i.e. humidity control
- B60H3/024—Moistening ; Devices influencing humidity levels, i.e. humidity control for only dehumidifying the air
-
- 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
- B60H3/00—Other air-treating devices
- B60H3/02—Moistening ; Devices influencing humidity levels, i.e. humidity control
- B60H2003/028—Moistening ; Devices influencing humidity levels, i.e. humidity control the devices comprising regeneration means
Definitions
- the present invention relates to a heating and drying apparatus for use in motor vehicles according to the preamble of claim 1 and a method for increasing the temperature of an operating fluid of a motor vehicle and / or for drying air of a vehicle cabin of the motor vehicle using such a device.
- the adsorption units include an adsorbent (adsorbent) suitable for reversible adsorption and desorption of water vapor.
- adsorbent adsorbent
- zeolites and silica gels silica gels are known as suitable adsorbents.
- European patent application EP 1 547 834 A1 describes a conditioning system for a vehicle, with which conditioning system the air to be introduced into a vehicle interior can be conditioned.
- the conditioning system comprises a drying device through which air can flow, through which moisture can be withdrawn from the air.
- the drying device comprises for this purpose one of the air to be introduced into the interior through ström bare zeolite arrangement.
- the dryer is heated by the application of heat from a heat source.
- the heat source may be formed by a fuel-operated burner and / or an exhaust-gas guidance system of an internal combustion engine or / and a fuel cell or / and an electrically operable heater.
- the device comprises a steam adsorber, which is in flow communication with a cooled by withdrawal of heat of vaporization liquid reservoir of a heat exchanger or with a prior to cooling by a refrigerant compressor to be dehumidified air flow, the steam adsorber by the waste heat of the drive motor of the motor vehicle, in particular the waste heat of Exhaust system of the motor vehicle, with expulsion of the absorbed steam is regenerated.
- Zeolites are preferably used to form the vapor adsorber.
- a connection with a cooling circuit for the drive motor of the motor vehicle can be achieved with unnecessary air conditioning, especially in winter operation of the vehicle, a rapid heating of the cooling water for the drive motor by the heat generated in water vapor absorption by the Zeolithadsorber the cooling water is supplied.
- dehumidifier for a motor vehicle is described in the patent DE 100 45 974 C1. With the dehumidifier is sucked in particular during the cold start humid air from the vehicle interior, fed to a filled with a hydrophilic sorbent drying unit and dried from there back to the vehicle interior.
- the hydrophilic sorbent which is formed by salt, is located in a vessel attached to the engine block in thermal contact with the engine of the motor vehicle.
- the present invention is a heating and drying apparatus for use in a motor vehicle, comprising:
- An adsorption unit with an adsorbent which is suitable for the reversible adsorption or desorption of water
- a heat exchanger which communicates with both the adsorbent of the adsorption unit and with a waste heat source active at least during operation of the motor vehicle in heat transfer and is intended to transfer heat from the waste heat source to the adsorbent of the adsorption unit in at least one operating condition
- a valve unit designed to provide access routes of air to the adsorbent and to control air access to the adsorbent.
- adsorption / desorption of water is to be understood in this context in particular a physical adsorption / desorption are enriched in the water molecules on the surface of the adsorbent without formation / dissolution of chemical bonds / detached.
- liquid water comes either from the air (as water vapor) and / or are applied by a special device as liquid water on the surface of the adsorbent.
- the liquid water may also contain an antifreeze.
- the waste heat source is formed by an operating fluid of the motor vehicle and the heat exchanger thereby also communicates with the operating fluid of the motor vehicle in heat transferring contact and is intended, in at least one operating state, heat from the adsorbent to the operating fluid of the Motor vehicle to transfer.
- the device according to the invention can advantageously be stored during operation of the motor vehicle waste heat and used to heat the operating fluid of the motor vehicle at a future journey start in less time to a desired operating temperature.
- the water vapor content of the air in the vehicle cabin can be reduced, so that fogging of the discs can be reduced or prevented by condensing water vapor, which can increase driving safety.
- the heat transfer can be carried out particularly efficiently.
- zeolites such as NaY, 13X
- silica gels sica gels, including Köstrosorb ®
- the adsorption has a hermetically sealable housing for receiving the adsorbent.
- hermetically sealed is to be understood in particular to mean that an exchange of gases or liquids between the housing and the surrounding exterior space is prevented.
- the operating fluid of the vehicle is selected from a group constituted by transmission oil, engine oil and coolant, by accelerating the desired operating temperatures, high-viscosity friction losses can be reduced, and an operating point of the engine can be made high in efficiency can be achieved faster, whereby an improved overall efficiency of the motor vehicle can be achieved.
- At least one of the access paths provided by the valve unit is formed by an air-conduction-capable connection between a vehicle cabin of the motor vehicle and a space surrounding the vehicle cabin.
- valve unit of the heating and drying device has at least one vacuum valve, it can be achieved that the housing of the adsorption unit, which cools down after an interruption of the operation of the motor vehicle, can furthermore be hermetically sealed, as a result of which an undesired adsorption of water or water vapor on the adsorbent largely occurs can be avoided.
- the heating and drying device comprises a ventilation unit, which is intended to convey air on at least one of the provided through the valve unit access paths.
- the adsorption of the heating and drying device is integrated either in a provided for receiving the operating fluid of the vehicle container or in the active during operation of the motor vehicle waste heat source.
- integrated is to be understood in this context, in particular, that the adsorption of the container or the waste heat source is substantially completely enclosed or that the adsorption unit and the container or the waste heat source have at least one common housing element.
- Another object of the present invention is a method for
- valve unit Providing, by means of the valve unit, an access route for air from at least one of air spaces formed by the space surrounding the vehicle cabin and the vehicle cabin of the motor vehicle, to the adsorbent,
- valve unit Providing, by means of the valve unit, an access route for air from the adsorbent to at least one of the air spaces formed by the space surrounding the vehicle cabin and the vehicle cabin of the motor vehicle, and
- the heating and drying device additionally comprises a temperature sensor for determining the temperature of the adsorbent, a temperature sensor for determining the temperature of the operating fluid and a temperature sensor for determining the temperature of the waste heat source of the motor vehicle, and the method includes as a step closing the valve unit ready by Air access paths provided that after a rise in the temperature of the adsorbent due to adsorption of water by the adsorbent, a difference of the temperature of the adsorbent and the temperature of the operating fluid of the motor vehicle falls below a first predetermined value.
- the method includes, as a step, opening the air access paths provided by the valve unit when the difference in the temperature of the waste heat source of the motor vehicle and the temperature of the adsorbent exceeds a second predetermined value.
- the heating and drying system comprises an embodiment of one of the described heating and drying devices or a combination thereof, wherein the valve unit comprises at least one controllable valve.
- a "controllable valve” should be understood to mean, in particular, a valve whose valve positions can be changed remotely by an externally variable actuation variable Voltage (electromagnetically controllable valve) or a mechanical force to be formed.
- the heating and drying system includes a temperature sensor for determining the temperature of the adsorbent, a temperature sensor for determining the temperature of the waste heat source of the motor vehicle, a temperature sensor for determining the temperature of the operating fluid of the motor vehicle and a control and control unit provided therefor is to control the valve unit to provide access routes of air to the adsorbent as well as to control the access of air to the adsorbent in response to temperatures determined by the temperature sensors.
- the control and control unit is provided to close the provided by the valve unit access routes for air to the adsorbent when after a rise in the temperature of the adsorbent due to adsorption of water vapor through the adsorbent a difference of the temperature of the adsorbent and a temperature of the operating fluid of the motor vehicle falls below a first predetermined value.
- the first predetermined value can advantageously be stored in a memory unit of the control and monitoring unit.
- control and control unit is provided to open the provided by the valve unit access routes for air to the adsorbent when a difference in the temperature of the exhaust heat source of the motor vehicle and the temperature of the adsorbent exceeds a second predetermined value.
- the second predetermined value can advantageously also be stored in the memory unit of the control and monitoring unit.
- Fig. 1 is a schematic representation of a heating and drying system according to the invention for use in a motor vehicle.
- Fig. 1 shows in a flow chart a schematic representation of a heating and drying system according to the invention for use in a motor vehicle.
- the heating and drying system is described below for use in a motor vehicle designed as a passenger car with an internal combustion engine, it can generally also be found in other motor vehicles, for example in electric vehicles or motor vehicles with hybrid drive.
- the heating and drying system comprises a heating and drying device 1, a plurality of temperature sensors 1 1, 12, 13 and a control and control unit 4th
- the heating and drying apparatus 1 has an adsorption unit 2 with an adsorbent 3 formed by zeolite, which is suitable for the reversible adsorption or desorption of water vapor or water in liquid form, optionally of a mixture of water and an antifreeze.
- the adsorbent 3 is arranged in a hermetically sealable housing of the adsorption unit 2.
- the housing consists mainly of vacuum-tight plastic and is provided with a thermal insulation, so that the adsorbent 3 is sufficiently insulated from the environment in a thermally insulated manner.
- the heating and drying device 1 to a heat exchanger 15, which is integrated in the housing of the adsorption unit 2.
- the heat exchanger 15 is in contact with heat both with the adsorbent 3 of the adsorption unit 2 and with a waste heat source 16 active at least during operation of the motor vehicle and is made of metal in order to achieve good heat transfer values for the adsorbent 3.
- the active in operation of the motor vehicle waste heat source 16 is formed by an operating fluid 17 of the motor vehicle.
- Connection connections of the heat exchanger 15 are from the housing of the adsorption unit 2 led out without affecting the seal against the environment, and connected to opposite sides of the oil pan 18.
- a circulation pump 19 of the heating and drying device 1 is provided to promote the motor oil from the oil pan 18 through the second heat exchanger 15 back to the oil pan upon activation.
- the heat exchanger 15 is provided to transfer heat from the operating fluid 17 of the motor vehicle to the adsorbent 3 of the adsorption unit 2 in at least one operating state.
- the operating fluid 17 of the motor vehicle is formed by engine oil, which is received in an oil pan 18 of the motor vehicle.
- the operating fluid 17 may also be formed by transmission oil or coolant, wherein the suitable, known housing find use.
- the heat exchanger 15 is also provided to transfer heat from the adsorbent 3 to the operating fluid 17 of the motor vehicle in at least one operating state.
- the heating and drying device 1 includes a valve unit 5, which comprises a vacuum valve 6 and two 3/2-way valves 7, 8. Both the vacuum valve 6 and the two 3/2-way valves 7, 8 are electrically controlled.
- the valve unit 5 is provided to provide access routes of air to the adsorbent 3 and to control access of the air to the adsorbent 3.
- the vacuum valve 6 is designed to have two inlet and two outlet openings. In a first position, the vacuum valve 6 can hermetically seal the adsorption unit 2.
- an access path of the air through the vacuum valve 6 to the adsorbent 3 and an access path of the air from the adsorbent 3 through the vacuum valve 6 are separated from each other, so that the air can flow directed in the adsorption unit 2.
- connection 9i of the 3/2-way valve 7 is fluidly connected to the inlet opening of the vacuum valve 6 facing away from the adsorption unit 2.
- a connection 10i of the 3/2-way valve 8 fluidly with the from the adsorption unit 2 facing away from the outlet opening of the vacuum valve 6.
- Fig. 1 shows the two 3/2-way valves 7, 8 in the rest position.
- the two remaining ports 92, 93 of the first 3/2-way valve 7 are fluidly connected to the surrounding space or a vehicle cabin of the motor vehicle.
- the two remaining ports I O2, I O3 of the second 3/2-way valve are also connected to the surrounding space or to the vehicle cabin of the motor vehicle.
- the heating and drying system includes a plurality of temperature sensors 1 1, 12, 13, namely a temperature sensor 1 1 for determining the temperature of the adsorbent 3, a temperature sensor 12 for determining the temperature of the waste heat source 16 of the motor vehicle and a temperature sensor 13 for determining the temperature of the operating fluid 17 of the motor vehicle.
- an external temperature sensor may also be connected (not shown).
- the temperature sensors 1 1, 12, 13 and optionally the outside temperature sensor are connected to the control and control unit 4 by means of electrical lines or wirelessly. The temperatures determined by the temperature sensors 11, 12, 13 and optionally the outside temperature sensor are detected by the control and control unit 4 at regular intervals.
- the control and control unit 4 is provided, the valve unit 5 for providing access routes of air to the adsorbent 3 and for controlling the access of air to the adsorbent 3 in dependence on the temperature sensors 1 1, 12, 13 and optionally the Outdoor temperature sensor to control certain temperatures.
- the waste heat source 16 of the motor vehicle is thus given by the operating fluid 17 of the motor vehicle, which is formed by the located in the oil pan 18 engine oil.
- the heat exchanger 15 is provided to transfer heat from the adsorbent 3 to the engine oil of the motor vehicle, and in a second operating state to transfer heat from the engine oil of the motor vehicle to the adsorbent 3 of the adsorption unit 2.
- the valve unit 5 is controlled in a first step by the control and control unit 4 such that the vacuum valve 6 is opened and the first 3/2 after commissioning of the motor vehicle -Wegeventil 7 and the second 3/2-way valve 8 are in the active position.
- the terminals 9 3 and 9i an access path for air from the vehicle cabin through the vacuum valve 6 and the adsorbent 3, and remounted back through the vacuum valve 6 through the ports 10i and I O3 in the vehicle cabin of the motor vehicle.
- a ventilation unit (not shown) designed as a ventilator.
- the adsorbent 3 Since the adsorbent 3 is in a dry state, it will adsorb a part of the water vapor from the vehicle cabin, whereby the adsorption energy becomes free and the temperature of the adsorbent 3 increases.
- the circulation pump 19 is activated, which then promotes the engine oil from the oil pan 18 through the heat exchanger 15 and back to the oil pan 18, wherein the engine oil absorbs the released adsorption and is heated.
- the engine oil reaches a desired operating temperature of, for example, 120 ° C, in which it has favorable viscosity properties, in a shorter time than without the transfer of the heat of adsorption.
- the conveyed from the vehicle cabin air contains after flowing through the adsorption unit 2, a smaller amount of water vapor, so that the air of the Vehicle cabin is dried by the back flowing, drier air. This can prevent annoying at low outside temperatures fogging the windows of the vehicle cab.
- the valve unit 5 is controlled in a first step by the control and control unit 4 such that the vacuum valve 6 is opened and the first 3/2 after commissioning of the motor vehicle.
- Directional valve 7 and the second 3/2-way valve 8 are in the rest position.
- the control and control unit 4 detects the temperatures determined by the temperature sensors 11, 13 at regular intervals. Further, the control and control unit 4 at each temperature detection forms a difference in the temperature of the adsorbent 3 and the temperature of the engine oil and compares this difference with a first predetermined value ATi, which is stored in a storage unit of the control and control unit 4, and 10, for example ° C (or 10 K).
- the control and control unit 4 is provided to form a difference in the temperature of the engine oil and the temperature of the adsorbent 3 at each temperature detection and with a second predetermined value AT 2 , which is stored in the memory unit of the control and control unit 4 and for example 20 ° C, to be compared.
- a valve unit 5 prepares Asked access route for air to the adsorbent 3 of the control and control unit 4 by appropriate control of the valve unit 5 is opened, the vacuum valve 6 is open and the first 3/2-way valve 7 and the second 3/2-way valve 8 in the rest position are located.
- the access path for air to the adsorbent 3 provided by the valve unit 5 is transmitted by the control and regulation unit 4 corresponding control of the valve unit 5 is closed.
- the heating and drying device 1 is then prepared again for the transmission of heat to the engine oil or for drying the air of the vehicle cabin when the motor vehicle is put into operation again and the temperature of the engine oil substantially corresponds to the outside temperature.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
LU92436A LU92436B1 (de) | 2014-04-24 | 2014-04-24 | Heiz- und Trocknungsvorrichtung zur Verwendung in Kraftfahrzeugen |
PCT/EP2015/058842 WO2015162222A1 (de) | 2014-04-24 | 2015-04-23 | Heiz- und trocknungsvorrichtung zur verwendung in kraftfahrzeugen |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3134282A1 true EP3134282A1 (de) | 2017-03-01 |
Family
ID=50877628
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15720649.1A Withdrawn EP3134282A1 (de) | 2014-04-24 | 2015-04-23 | Heiz- und trocknungsvorrichtung zur verwendung in kraftfahrzeugen |
Country Status (5)
Country | Link |
---|---|
US (1) | US20170028819A1 (de) |
EP (1) | EP3134282A1 (de) |
CN (1) | CN106573523A (de) |
LU (1) | LU92436B1 (de) |
WO (1) | WO2015162222A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102020127309A1 (de) | 2020-10-16 | 2022-04-21 | Bayerische Motoren Werke Aktiengesellschaft | Belüftungsvorrichtung zum Versorgen eines Innenraums eines Kraftwagens mit Luft, sowie Kraftwagen |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10045974C1 (de) * | 2000-09-16 | 2002-04-04 | Bosch Gmbh Robert | Luftentfeuchter für Kraftfahrzeuge |
US6807820B2 (en) * | 2002-03-06 | 2004-10-26 | Denso Corporation | Heat storage system for vehicle, with adsorbent |
DE10233762A1 (de) * | 2002-07-25 | 2003-02-13 | Devetec Ingenieurgmbh | Vorrichtung zur Klimatisierung von Kraftfahrzeugen |
DE10360459A1 (de) * | 2003-12-22 | 2005-07-14 | J. Eberspächer GmbH & Co. KG | Konditionierungssystem für ein Fahrzeug |
JP4281564B2 (ja) * | 2004-02-02 | 2009-06-17 | 株式会社デンソー | 車両用空調装置 |
DE102004053436A1 (de) * | 2004-11-05 | 2006-05-11 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | PKW-Klimaanlagen mit Adsorptionswärmepumpen |
US8051670B2 (en) * | 2008-05-09 | 2011-11-08 | Thermo King Corporation | HVAC management system for a vehicle |
WO2009136937A1 (en) * | 2008-05-09 | 2009-11-12 | Thermo King Corporation | Hvac management system for a vehicle |
CN102259570B (zh) * | 2010-05-26 | 2015-11-25 | 塞莫金公司 | 湿度控制和空调*** |
US9028591B2 (en) * | 2013-05-01 | 2015-05-12 | Ford Global Technologies, Llc | Climate control system having multiple adsorbers and a method of control |
-
2014
- 2014-04-24 LU LU92436A patent/LU92436B1/de active
-
2015
- 2015-04-23 CN CN201580033692.2A patent/CN106573523A/zh active Pending
- 2015-04-23 US US15/303,822 patent/US20170028819A1/en not_active Abandoned
- 2015-04-23 EP EP15720649.1A patent/EP3134282A1/de not_active Withdrawn
- 2015-04-23 WO PCT/EP2015/058842 patent/WO2015162222A1/de active Application Filing
Non-Patent Citations (2)
Title |
---|
None * |
See also references of WO2015162222A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20170028819A1 (en) | 2017-02-02 |
WO2015162222A1 (de) | 2015-10-29 |
LU92436B1 (de) | 2015-10-26 |
CN106573523A (zh) | 2017-04-19 |
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