WO2000000361A1 - Dispositif de chauffage et de refroidissement integre pour cabine de vehicule comprenant un reservoir de stockage thermique et un chauffage additionnel - Google Patents

Dispositif de chauffage et de refroidissement integre pour cabine de vehicule comprenant un reservoir de stockage thermique et un chauffage additionnel Download PDF

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Publication number
WO2000000361A1
WO2000000361A1 PCT/US1999/014573 US9914573W WO0000361A1 WO 2000000361 A1 WO2000000361 A1 WO 2000000361A1 US 9914573 W US9914573 W US 9914573W WO 0000361 A1 WO0000361 A1 WO 0000361A1
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WO
WIPO (PCT)
Prior art keywords
fluid
heat exchanger
cooling
heater
thermal storage
Prior art date
Application number
PCT/US1999/014573
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English (en)
Other versions
WO2000000361A9 (fr
Inventor
Peter Carr
John Joseph Lindberg
Original Assignee
Instatherm Company
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Instatherm Company filed Critical Instatherm Company
Priority to AU48382/99A priority Critical patent/AU4838299A/en
Priority to EP99931977A priority patent/EP1091861A1/fr
Publication of WO2000000361A1 publication Critical patent/WO2000000361A1/fr
Publication of WO2000000361A9 publication Critical patent/WO2000000361A9/fr

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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
    • B60H1/005—Regenerative cooling means, e.g. cold accumulators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D2020/0004—Particular heat storage apparatus
    • F28D2020/0021—Particular heat storage apparatus the heat storage material being enclosed in loose or stacked elements

Definitions

  • This invention relates to thermal storage systems and more particularly to thermal storage systems for heating and cooling vehicle compartments and preheating vehicle engines.
  • Thermal storage units for vehicles such as trucks are known. Such known systems are disclosed in commonly assigned U.S. Patent No. 5.277,038. which is incorporated by reference herein.
  • a passenger compartment or sleeper compartment of a vehicle is cooled, (i.e. heat is removed), by circulating a coolant from a thermal storage system through a heat exchanger. Air is then passed over the heat exchanger, chilled, and directed to the desired location. The coolant is then recirculated back to the thermal storage unit to again bring down the temperature of the coolant and the cycle is repeated.
  • Heating systems also are known whereby heated engine coolant is directed to a heater core, where air is blown over the heater core and the hot air is directed to a desired location.
  • heating and cooling systems are put to the added test of keeping a driver comfortable overnight while the driver rests in the sleeping compartment. The driver may be kept in relative comfort by applying either air conditioning or heating as needed.
  • running such systems requires that the engine be left on, in an idling mode.
  • idling is not permitted and a supplemental fuel fired heater is often operated to direct heat to a sleeping compartment.
  • These heaters are used to a lesser extent in the United States.
  • the invention provides an integrated heating and cooling system for cooling and/or heating a selected vehicle passenger compartment.
  • the system comprises a heater for heating a heat exchange fluid with the heater powered independently from the vehicle engine.
  • the heater is placed on line in the vehicle coolant system. Heat exchange fluid leaving the heater is directed through the circuit to a heat exchanger.
  • the fluid then releases heat to the exchanger and heat, in the form of hot air, is directed to the desired compartment.
  • a fluid controller selectively establishes and controls fluid circulation within the circuit. That is, fluid circulation proceeds from the heater to the heat exchanger and back from the heat exchanger to the heater.
  • the integrated heating and cooling (IHC) system of the present invention further comprises a thermal storage reservoir for cooling heat exchange fluid.
  • the reservoir is controllably connected for fluid communication with the heat exchanger circuit.
  • the fluid controller selectively establishes fluid circulation of the cooled heat exchange fluid from the thermal storage reservoir to the heat exchanger and back. Again, in this cool mode the heat exchanger is cooled, thereby achieving air cooling with the air then directed to a selected passenger compartment.
  • the IHC system is operable independently of the operation of the vehicle engine so that the system can run for prolonged periods without the engine idling.
  • the present invention provides a thermal storage apparatus adapted to transfer heat to or from a fluid stream.
  • the apparatus comprises a sealed housing filled with a plurality of individual sealed containers, which are arranged in rows within the housing, such that fluid flowing through the container contacts each of the containers in a heat exchange relationship.
  • Each of the sealed containers houses an energy storage medium comprising water and a material capable of forming a clathrate hydrate with the water, along with small amounts of emulsifying agents or surfacants to promote mixing of the gas and the water, as disclosed in commonly assigned U.S. Patent Numbers 5,056.588 and 5,277,038. Since most of the hydrate forming materials are gases, the term "gas hydrate" is generally used.
  • phase change temperature for the gas hydrate in the sealed containers will be above OEC.
  • a movable agitator is positioned within each of the containers for providing mechanical movement within the medium.
  • the containers are arranged to create continuous transverse interstices between individual containers, and extending across a plurality of rows of stacked containers.
  • an orifice plate is inserted between stacked rows of containers. The orifice plate has openings that align with the interstices to favorably effect fluid flow within the thermal storage housing.
  • the present invention provides a method for regulating air temperature within a motorized vehicle.
  • a cool circuit having a cool mode for decreasing the temperature within the vehicle is provided.
  • a heat circuit having a heating mode substantially along the cooling circuit is provided for increasing the temperature within the vehicle.
  • a controller selectively operates the cooling and heating modes as desired with or without running the vehicle engine.
  • a method of cooling and heating a compartment of a motorized vehicle is provided wherein a selectively controlled cold mode is achieved by circulating a heat exchange fluid through a circuit from a heat exchanger to a thermal storage reservoir. Heat is absorbed by the heat exchanger to produce cool air which is directed into a compartment to be cooled.
  • the heat exchange fluid absorbs heat and is directed back to the thermal storage reservoir to be cooled.
  • a selectively controlled heat mode is achieved by circulating a heat exchange fluid from a heater placed in the circuit to heat the exchange fluid.
  • the heated exchange fluid is directed to the heat exchanger wherein heat is released therefrom to provide heating to air which is directed into a compartment to be heated.
  • the exchange fluid is then directed back to the heater for reheating.
  • Both the cold mode and heat modes use substantially the same circuit without running the vehicle motor.
  • FIG. 1 schematically illustrates the placement of one preferred apparatus embodiment of the present invention mounted on the frame of a tractor trailer cab;
  • FIG. 2 is a close-up of a partially broken away view of the apparatus shown in Fig. 1 ;
  • Fig. 3 schematically illustrates a partially broken away view of the thermal storage reservoir portion of the apparatus shown in Fig. 1 ;
  • Fig. 4 is a perspective that schematically illustrates the placement of the cooling cylinders within the thermal storage reservoir of Fig. 3:
  • Fig. 5 is a sectional end view taken along line 5-5 of Figure 4 showing a preferred cooling cylinder arrangement and a preferred arrangement of openings in an orifice plate positioned between stacked rows of cooling cylinders;
  • Fig. 6 is a schematic illustration of a preferred embodiment of the heating and cooling system of the present invention.
  • Fig. 7 is a schematic illustration of an apparatus embodiment of the invention for enhancing charging of the thermal storage reservoir of the system of Fig. 6 and also illustrates flow of heated and/or cooled air directed into the sleeper compartment of a truck cab.
  • vehicle refers to any mechanized apparatus capable of accommodating a person during its operation.
  • Figs. 1-2 illustrate the positioning of the integrated heating and cooling (IHC) unit 10 onto the frame 12 of tractor trailer cab 14.
  • the unit 10 has first compartment
  • Thermal storage reservoir 18 has first and second sides 20. 22 having attached thereto first and second mounting brackets 24, 26.
  • the brackets have openings 28 spaced apart to match openings 30 in brackets 32. 34 which together receive bolts 36 which are fastened by securing washers 38 and nuts 40 into place.
  • thermal storage reservoir 18 in an exposed view reveals outlet 42 outlet tubing 44 and valve 46.
  • Valve 46 has outlet tubing 48 connected to a t-connector 50.
  • T-connector 50 connects tubing 52 to valve 54 and pump 56.
  • Pump outlet 58 is connected to tubing 60 which directs fluid flow out of first compartment through aperture 62.
  • Tubing 64 is shown directing a flow back to t-connector 66 to which is attached connecting tubing 68 and 70.
  • Connecting tubing 68 attaches to heater inlet 72 on heater 74.
  • Tubing 70 from t-connector 66 attaches to valve inlet 76 on valve 78.
  • Valve outlet 80 has tubing 82 directing fluid flow to inlet 84.
  • Fig. 3 illustrates the arrangement in thermal storage reservoir 18 of IHC unit 10 wherein a plurality of elongate tubular container 100 are arranged in fixed position. Housing 102 is shown covering insulating layer 104. Thermal storage unit inlet 84 and outlet 42 are shown as well as vent 106 which may have an overflow detect switch (not shown) to deactivate the system if excess coolant enters the thermal storage reservoir.
  • Fig. 4 shows further sectional view of second compartment of IHC unit 10 showing a cross sectional view of elongate tubular containers 100.
  • the container 110 shown in partially broken away view illustrates contents including solution 112 and agitators 114. Any of various emulsifying, surfacants or wetting agents also can be included to promote mixing of the gas or gas hydrate and water.
  • These can include sodium lauryl sulfate/dodecyl alcohol and polyglycerol oleate materials such as decaglycerol tetraoleate (available as CAPROL 1 OG-40 from Capital City Products) and perfluoroalkyl ethoxylate (ZONYL, Dupont), both of which have shown improved mixing and hydrate formation; sorbitan monoisostearate (available as CRILL 6 from Croda, Inc.) which appeared to have a more limited effect, and the like.
  • Other surfacants to promote hydrate formation are set forth in U.S. Pat. No. 4,821,794 to Tsai et al. which is incorporated herein by reference.
  • the orifice plate 116 is seen in Figures 4 and 5.
  • the orifice plate 116 comprises a plurality of orifices sized such that, especially when a predetermined system pressure is supplied to the thermal storage reservoir inlet, there will be a positive pressure differential across each of the orifices.
  • an orifice plate having 102 orifices each having a diameter of 0.073 inches produce a pressure drop of about 1 inch of water. It is understood that the system of the present invention can be modified to accommodate a pressure drop of from about 0.5 to about 15 inches of water.
  • Fig. 5 is a cross sectional end view of the elongate tubular containers 100 shown in the thermal storage reservoir 18 of the IHC unit 10.
  • the openings or orifices 118 in the orifice plate 116 are shown to be aligned with a portion of the lengthwise, transverse interstices 119 formed between adjacent containers 100 which can be fixed in place, for example, by adhesive between adjacent containers in each horizontal row 120 and also between stacks of rows 120.
  • the orifices 118 are preselectedly arranged so that fluid flow through the orifices 118 provides direct contact of fluid with each container 100 throughout the intersticial lengthwise space 119. This is even true for the interstices 119 that do not have an apparent orifice 118 associated immediately therewith. Therefore, the positioning of the orifices 118 in the plate 116 promote enhanced uniformity of fluid contact with the exterior of the containers 100.
  • Fig. 6 is a schematic diagram showing one preferred embodiment of the present invention which is selectively activatable for heating or cooling modes. It is understood that the thermal storage reservoir houses the chilled containers of Figs. 3 and 4 therein. .An alternative cool storage media as will be well understood in the HVAC field also may be used.
  • the system of the present invention is designed to run when the truck is not in operation, but is instead stationary with the driver sleeping in the sleeper compartment for an extended period with the engine off. In that mode, shown in Fig. 6. the cooling mode results in pump 602 being activated by control 604 to direct a flow of coolant from thermal storage reservoir 600. through valve 606, through line 608 and into pump 602. Pump 602 activates the system sending the fluid flow along line 608 to heater core 610.
  • a blower 615 is then activated by control 604 to direct cool air through vent 612 and selectively into sleeper compartment 614 or passenger compartment 613.
  • the "spent" coolant fluid leaves heater core unit 616 and proceeds along line 618 back through valve 620 and into the thermal storage reservoir to complete the cooling cycle.
  • the cycle does result in a cooling drain, however, and accordingly the thermal storage reservoir 600 is sufficiently sized and charged to deliver adequate cooling for an extended period.
  • the pump may be controlled in conjunction with a thermostat or timer to insure that air of the desired temperature is directed to the preselected compartments.
  • the pump may run intermittently or continuously as required to obtain the desired air temperature.
  • heater 622 is activated by control 604 to heat cooling fluid flowing therethrough.
  • Valve 620 is closed by control 604. Heated fluid leaves heater 622 and proceeds through open valve 624 to pump 602. Pump 602 delivers and directs the flow of the heated fluid coolant along line 608 to the heater core 616 wherein heat is released from the heated coolant through vent 612 and into sleeping compartment 614. The spent coolant is returned to the heater along line 618.
  • Valve 620 is placed in the closed position as is valve 606 as a result of signals from control 604 such that no heated coolant proceeds into or out of the cold thermal storage reservoir 600. In this way the "heat cycle" is repeated.
  • Valves 626 and 628 which control flow to and from the engine compartment of the cab are also placed in a closed position through use of control 604. However, if it is so desired, the engine can be warmed up with residual heat from the heated fluid. In this mode of operation, valves 626 and 628 are placed in an open position allowing the path, i.e., flow of the heat exchange fluid to extend from the heater 622 through the sleeper compartment 614 and into and from the engine 630.
  • valves 626, 628, 624, 606 and 620 will be closed and refrigerant from the truck air conditioning system will be evaporated in the evaporator enabling the blower to deliver cool air.
  • valves 624, 606 and 620 will be closed but valves 626 and 628 will be open, thereby allowing warm engine coolant, from the operating vehicle engine, to circulate through the heater core and enable the blower to deliver heated air.
  • the system of the present invention further contemplates allowing for pre- heating the engine, and compartment if desired, following cold weather parking of the vehicle.
  • a timer or manual start may be used such that the heater is activated at some time before the vehicle is required for use, typically 0.5 to 4 hours in advance.
  • Valves 624, 626 and 628 are opened while the blower 615 is not operated to direct maximum heat to the engine. If cab warming is also desired, this can be accomplished simply by operating the blower.
  • Fig. 7 is a cross-sectional schematic view showing the airflow through heater core 616 and evaporator 610 having an air space 611 disposed between them, whereby air is directed through the evaporator heater 610, through the heater core 616 through duct 640 and out vent 612 into sleeper compartment 614.
  • One or both valves 650 and 652 are located in duct 640 at section 651 and are movable between an open position (not shown) and a closed position as illustrated to effect changing of cool storage reservoir as discussed in detail subsequently.
  • the air flow valves 650 and 652 are controlled by controller 604.
  • the thermal storage unit of the present invention may be any unit capable of delivering the required cooling capacity.
  • the cooling capacity is preferably from about 5,000 Btu to about 25,000 Btu and more preferably from about 8,000 Btu to about 15,000 Btu. It is contemplated that the reservoir preferably works to deliver the requisite cooling/heating, without running the vehicle engine, for periods of time up to at least about 8 hours; for example, the period of time during which the truck driver would sleep in his cab. It is contemplated the cooling capacity available would enable a driver to sleep comfortably in a parked vehicle with the engine off, in temperatures of about 110EF for a period of up to several hours.
  • the preferred thermal storage unit uses elongate canisters or containers containing a thermal energy storage medium disposed therein.
  • the medium includes water and a gas capable of forming a clathrate hydrate, with the water.
  • the phase change temperature for the gas hydrate is preferably above 0E.
  • the canisters also contain agitators, preferably in the form of steel balls which assist in the hydrate formation.
  • the process and canisters are well described in commonly assigned U.S. Patent No. 4,922,998, the contents of which are incorporated by reference herein as if made a part of the present specification. It is understood that the thermal storage unit can have its cold recharged according to known methods such as those described in commonly assigned U.S. Patent No. 5,277,038, which is incorporated by reference herein.
  • a controller activates the air conditioning unit of the vehicle which cools the evaporator 610. and also establishes circulation of heat exchanger fluid between the heat exchanger and the thermal storage unit. The controller also activates blower 615 so that air is cooled by contact with evaporator 610 and so that the cool air is then directed across the heat exchanger
  • the thermal storage reservoir of the present invention has new advantages however, which enable the efficiency of such unit to be increased over those presently known. In the past, it was believed that portions of the cooled fluid contained in the thermal storage reservoir 18 were not efficiently circulated within the reservoir. Such restricted, incomplete fluid circulation or "channelling", resulted in non-uniform contact between the fluid and the containers within the thermal storage reservoir 18.
  • the present invention uses a thin plastic sheet or orifice plate 116 which extends across the entire cross section of the reservoir 18.
  • the cooling canisters 100 contained within the reservoir 18 are affixed to one another such that their position within the reservoir 18 remains predictable and fixed throughout the life of the unit.
  • the multiple stacked rows 120 of canisters 100 create lengthwise pathways 119 which do not impede fluid flow. These pathways, in the transverse direction, necessarily occur due to the curved shape of the canisters. See Figs. 3-5.
  • the orifice plate 116 is inserted between stacked cylinder rows 120. This eliminates the need for a header volume to distribute fluid to the orifice plate.
  • the heater used in the heating mode of the present invention may be any heater run from a fuel source that may or may not be the same fuel that powers the vehicle engine. The heater selected must be capable of operating when the vehicle engine is not being operated.
  • the primary usefulness of the present invention is in affording heating and cooling systems to vehicles so as to obviate the need to run or idle an engine simply for the purposes of running the thermal cooling and heating system.
  • One preferred heater is a fuel fired heater powered by diesel fuel provided by a separate line into the vehicle diesel tank.
  • diesel fuel is still expended to run the system, extremely small amounts of diesel fuel are required as opposed to the relatively substantial amounts of fuel expended during overnight engine idling.
  • Particularly preferred fuel fired heaters include the Webasto Thermo Top Z, or Webasto Thermo Top 90 (Webasto Thermosystems. Inc., Lapeer, MI).
  • At least one pump is placed on line to circulate fluid at a predetermined rate throughout the system.
  • the pump will be controlled by known control systems to activate either on a timed basis or in response to a thermostat such that the pump is activated when the air temperature within a cabin or the fluid temperature itself within the line measured at a certain point reaches a predetermined temperature.
  • the thermal control system of the present invention will be activated sporadically, or as needed, to further conserve truck fuel and increase overall energy efficiency of the system.
  • vaives shown in Fig. 6 are preferably poppet valves that are preferably pneumatically driven. It is understood that these valves are controlled by the control system to open and close depending upon the mode desired.
  • One aspect of the present invention contemplates that when the cooling mode is desired, the appropriate valves are open and shut to completely shut down the access to the heating features 622, 630 of the system. That is, in the cool mode cool fluid leaves the thermal storage reservoir 600 and is routed to the heat exchanger 616 and then back to the thermal storage reservoir 600 without ever having access to the heater 622. In this way, the fluid is kept as cold as possible for as long as possible.
  • heated fluid is routed directly from the heater 622 to the heat exchanger 616 and back to the heater 622 without every gaining access to the cool thermal storage reservoir 600.
  • the complementary positioning of the valves is critical to one preferred embodiment of the present invention to optimize thermal efficiency and enable the same piping (lines) and duct work to be used for both heating and cooling modes.
  • the pump 602 preferably operates periodically during cooling and continuously while the unit is heating. Any excess heat in the heating loop that is not required to heat the vehicle compartment can be circulated to pre-heat the engine 630 through valves 626, 628 to keep the engine 630 at warmer than ambient temperatures for ease of starting during cold temperature operation resulting in less start-up pollution.
  • the heater core 616 of the present invention may be commercially available as is known in the vehicle industry, or may be customized to better suit the needs of the present invention.
  • the heater/evaporator is a single unit, with the evaporator tubes 610 and heater tubes 616 mounted within the same fins.
  • the evaporating refrigerant in the evaporator tubes 610 can conductively remove heat from the circulating coolant on charge, without the need to direct airflow over the unit. Such airflow induced by a blower 615 would be optional only.
  • the preferred heater core evaporator of the present invention provides multiple functions. It can deliver heat or cold with the engine off.
  • Conducting heat exchangers are commercially available (Behr of America), but may be customized by rearranging the placement of evaporator and heater tubes to maximize conductivity through the fins positioned therebetween.
  • an air space 611 may occur between the heater core 616 and the evaporator 610.
  • the heat exchanger has essentially no direct conductive heat transfer.
  • airflow is required to charge the cool storage sy stem, since there is no conductive path between the heat exchangers.
  • the heater core is preferably oriented in close association with the duct work constructed to direct airflow to the sleeper cabin as shown in Figs. 6 and 7.
  • the present invention contemplates the use of a blower to facilitate and augment, if necessary, whichever heat exchange arrangement (conductive or non-conductive exchange) is selected for the charging mode.
  • Valves within the duct work as shown in Fig. 7 may be present to recirculate air in the most efficient means to the desired compartment.
  • the valves 650, 652 are positioned to redirect airflow back to the evaporator heat core. It is to be understood that while both valve 650 and valve 652 could be present, only one is necessary in this system. The choice will depend on ease of integration into the vehicle's existing ducting. In this way, the sleeper compartment would not be thermally conditioned needlessly, thus conserving the efficiency of the system as air is directed only to the cabin areas inhabited by persons seeking thermal conditioning.
  • valve 650 or 652 Overnight, when the driver is in the sleeper compartment, valve 650 or 652 would be moved by a signal from a control 604 to a position that would allow airflow to the sleeper compartment. For example, in a preferred cooling mode during overnight sleep, air from sleeper compartment 614 is directed through duct 640. Valve 652 is not in place for this example. Air flows through duct 640 and impacts evaporator 610 to cool heater core 616 of the heat exchange unit. Blower 615 is responsible for impelling the airflow from the cabin through the heat exchanger. The air leaves the exchanger and proceeds through duct 612 and cools compartment 614. So long as valve 650 is in the open or "down" position, airflow circulation continues in this fashion.
  • valve 650 As the vehicle is under operation, the valve 650 is positioned into a "closed” or up position such that cool airflow from the heater core 616 cannot proceed into the duct 612, but is forced back to the evaporator 610 to cool charge the thermal storage reservoir 600.
  • the blower and duct work associated with the present invention are constructed and positioned as would be readily understood to one skilled in the field of HVAC automotive construction. Further, it will be apparent to those skilled in the art that various changes and modifications can be substituted for those parts of the system described herein. For example, thermal storage media other than those specifically described herein can be advantageously used. Similarly, valves for controlling the flow of air to the first heat exchanger can be eliminated where desirable.
  • valves and pumps various substitutes for the valves and pumps, and/or additional valves and pumps, illustrated in the drawings can be employed in accordance with the invention.
  • a plurality of thermal storage reservoirs and/or thermal storage systems may be added to the vehicle in accordance with the invention.

Abstract

La présente invention concerne un dispositif et un procédé de chauffage et/ou de refroidissement sélectif d'un compartiment déterminé d'un véhicule par la mise en oeuvre d'un circuit de chauffage et de refroidissement, pratiquement indépendant, qui permet de réguler des températures pendant de longues durées sans obligation de faire marcher le moteur du véhicule.
PCT/US1999/014573 1998-06-29 1999-06-28 Dispositif de chauffage et de refroidissement integre pour cabine de vehicule comprenant un reservoir de stockage thermique et un chauffage additionnel WO2000000361A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU48382/99A AU4838299A (en) 1998-06-29 1999-06-28 Integrated heating and cooling system for a vehicle compartment comprising a thermal storage reservoir and an additional heater
EP99931977A EP1091861A1 (fr) 1998-06-29 1999-06-28 Dispositif de chauffage et de refroidissement integre pour cabine de vehicule comprenant un reservoir de stockage thermique et un chauffage additionnel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/106,578 1998-06-29
US09/106,578 US20020014329A1 (en) 1998-06-29 1998-06-29 Integrated heating and cooling system for a vehicle

Publications (2)

Publication Number Publication Date
WO2000000361A1 true WO2000000361A1 (fr) 2000-01-06
WO2000000361A9 WO2000000361A9 (fr) 2000-05-18

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US (1) US20020014329A1 (fr)
EP (1) EP1091861A1 (fr)
AU (1) AU4838299A (fr)
WO (1) WO2000000361A1 (fr)

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US10675948B2 (en) 2016-09-29 2020-06-09 Bergstrom, Inc. Systems and methods for controlling a vehicle HVAC system
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US11420496B2 (en) 2018-04-02 2022-08-23 Bergstrom, Inc. Integrated vehicular system for conditioning air and heating water
US11448441B2 (en) 2017-07-27 2022-09-20 Bergstrom, Inc. Refrigerant system for cooling electronics

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WO2000000361A9 (fr) 2000-05-18
US20020014329A1 (en) 2002-02-07
EP1091861A1 (fr) 2001-04-18

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