US20100043462A1 - Air Conditioning System - Google Patents
Air Conditioning System Download PDFInfo
- Publication number
- US20100043462A1 US20100043462A1 US12/537,852 US53785209A US2010043462A1 US 20100043462 A1 US20100043462 A1 US 20100043462A1 US 53785209 A US53785209 A US 53785209A US 2010043462 A1 US2010043462 A1 US 2010043462A1
- Authority
- US
- United States
- Prior art keywords
- desiccant
- chamber
- vapor
- zeolite
- cooling
- 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
Links
Images
Classifications
-
- 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
- F25B17/00—Sorption machines, plants or systems, operating intermittently, e.g. absorption or adsorption type
- F25B17/08—Sorption machines, plants or systems, operating intermittently, e.g. absorption or adsorption type the absorbent or adsorbent being a solid, e.g. salt
- F25B17/083—Sorption machines, plants or systems, operating intermittently, e.g. absorption or adsorption type the absorbent or adsorbent being a solid, e.g. salt with two or more boiler-sorbers operating alternately
-
- 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
- F25B15/00—Sorption machines, plants or systems, operating continuously, e.g. absorption type
-
- 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
- F25B27/00—Machines, plants or systems, using particular sources of energy
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
Definitions
- the present invention relates to an air conditioning system.
- the present invention is directed to a continuous cooling air conditioning system.
- the present invention provides for the continuous cooling of various fluids, such as but not limited to, air from the cabin of a vehicle.
- a first chamber is in cooling mode to provide for cooling of a fluid whereas a second chamber is in recharging mode to prepare for operation in the cooling mode.
- the second chamber is brought online in a cooling mode of operation to continue the cooling process.
- a seemingly continuous cooling process is provided for by the present invention.
- the desiccant used is zeolite and the refrigerant is water.
- An exemplary system may include at least two chambers having a desiccant in each chamber, at least one heat exchanger, a first fluid inlet to be cooled, and a second fluid inlet used to heat the desiccant to cause the desorption of the refrigerant from the desiccant.
- the exemplary system may also include a condenser for cooling and condensing the refrigerant after desorption from the desiccant.
- the heat exchanger is configured to remove heat from the fluid to be cooled through the use of an expansion valve. As the refrigerant enters the heat exchanger, the expansion value provides for the vaporization of the liquid refrigerant entering the heat exchanger. The heat of vaporization is supplied by the fluid to be cooled.
- the vaporized refrigerant is adsorbed by the desiccant in the first chamber operating in the cooling mode.
- the second fluid is used to heat the desiccant in the second chamber to cause the water vapor to be desorbed.
- the water vapor is then cooled and condensed for use back in the heat exchanger.
- FIG. 1 is an exemplary and non-limiting side view of an embodiment of the air conditioning unit
- FIG. 2 a is an exemplary and non-limiting exploded perspective view of another embodiment of the desiccant compartment
- FIG. 2 b is an exemplary and non-limiting perspective view of that embodiment
- FIG. 2 c is an exemplary and non-limiting perspective view showing the internal portion of that embodiment
- FIG. 3 a is an exemplary and non-limiting exploded perspective view of another embodiment of the desiccant compartment
- FIG. 3 b is an exemplary and non-limiting perspective view of that embodiment.
- FIG. 3 c is an exemplary and non-limiting perspective view showing the internal portion of that embodiment.
- a fluid cooling system that provides for essentially or apparently constant cooling of the fluid and, in some configurations, a reduction in size of certain components of the invention.
- one desiccant chamber is in a cooling mode of operation whereas a second chamber is being prepared for the cooling mode through the application of heat to drive off the adsorbed water vapor from a prior cooling cycle, is in a recharging mode.
- the chamber in the cooling mode is reconfigured to be in the recharging mode and the chamber in the recharging mode is configured to be in the cooling mode, which may or may not occur simultaneous or in any specific order.
- the desiccant may be defined as, but without limitation, a drying agent.
- desiccant that can be utilized are, without limitation, amorphous silica gel, diatomaceous earth, calcium aluminosilicate clay, molecular sieves and activated carbon.
- the following description uses zeolite as the desiccant by way of example only.
- a zeolite may be described, but without limitation, as hydrous aluminum silicate in porous granules.
- Possible zeolites that can be utilized are, but without limitation, analcime, chabazite, heulandite, natrolite, phillipsite, and stilbite.
- FIG. 1 A non-limiting system of the present subject matter is shown in FIG. 1 .
- the system of FIG. 1 may be mounted in various places of a vehicle such as, but without limitation, the rear of a truck sleeper compartment, at or near the undercarriage of the vehicle, or any location or position practicable.
- the desiccant used is zeolite and the refrigerant used is water, though it should be understood that the present invention is not limited solely to zeolite or water, or the combination of zeolite and water, as other appropriate desiccants and refrigerants may be used.
- zeolite chamber 100 A is in recharging mode
- zeolite chamber 100 B is in cooling mode
- zeolite chamber 100 C is in standby mode.
- the present invention is not limited to two chambers and may include more than two desiccant chambers depending upon the load conditions of the system or other factors.
- zeolite chamber 100 C may be used to augment or supplement the vapor adsorption capabilities of zeolite chamber 100 B while in cooling mode (or zeolite chamber 100 A when it is in cooling mode).
- zeolite chamber 100 C may be used as a backup should either or both zeolite chambers 100 A and/or 100 B fail or be unusable for the particular purpose.
- Each zeolite chamber may be, without limitation, a tank, container, receptacle or structure for holding a solid, liquid or gas.
- the zeolite chambers may be manufactured from any material practicable.
- FIG. 1 shows three zeolite chambers, 100 A, 100 B, and 100 C; however, as discussed above, the system of FIG. 1 may utilize as little as two zeolite chambers and as many as required or desired.
- Zeolite chambers 100 A, 100 B and 100 C may be configured to provide for the transfer of water from the zeolite.
- Zeolite chambers 100 A, 100 B and 100 C may include perforations (not shown) to facilitate the free and efficient movement of the vapor.
- Zeolite chamber 100 B includes a compartment wall 110 B and compartment tubing, snaking tube, 120 B.
- the compartment wall 110 may include an outer skin 114 and an inner skin 112 , which together create an air channel.
- Inner skin 112 may also include perforations 1100 B, which may be used to keep the zeolite in zeolite chamber 100 B while providing for the transfer of water vapor.
- Perforated tubes, shown as tube 1200 C of zeolite chamber 100 C may be used to facilitate the movement of water vapor as well.
- Snaking tube 120 B may be configured to prevent the intermixing of the contents of snaking tube 120 B with the vapor and/or desiccant disposed within the zeolite chamber 100 B.
- Snaking tube 120 B may include valves to control the flow of any fluids in snaking tube 120 B.
- Snaking tube 120 B may be manufactured from any type of material that is practicable.
- Snaking tube 120 B may pass through zeolite chamber 100 B in a straight line or in a serpentine manner as shown in FIGS. 1 and 2 .
- the tubing may include rings 111 disposed around the circumference of the snaking tube 120 B to increase heat transfer.
- Zeolite chamber 100 B may be comprised of replaceable desiccant cartridge 105 that can be removed or attached. Desiccant cartridge 105 is discussed in more detail with regards to FIGS. 2 and 3 , below.
- pump 300 pulls air, the fluid to be cooled, from the cabin of a vehicle into the system of FIG. 1 .
- the air circulates around heat exchangers 200 A, 200 B and 200 C and is cooled prior to being released back into the cabin through air outlet 250 .
- the system of FIG. 1 may be configured to provide for cooling by one or more than one heat exchanger.
- the use of the three heat exchangers, 200 A, 200 B and 200 C, is for exemplary purposes only.
- the exiting coolant air at 250 could be blown directly where cooling is required.
- a cooling fluid could be used which is then circulated in an auxiliary heat exchanger and blower combination to provide cooling where required.
- heat exchanger 200 A may be optimized to dehumidify the air and then heat exchangers 200 B and 200 C are configured to lower the air temperature in stages.
- Heat exchangers 200 A, 200 B and 200 C may be manufactured from an aluminum alloy with an inner nickel coating; however, heat exchangers 200 A, 200 B and 200 C may be manufactured from any type of material practicable.
- Heat exchangers 200 A, 200 B and 200 C along with any corresponding piping and valves may be calibrated such that they correspond with the number and size of zeolite chambers 100 A, 100 B and 100 C.
- Heat exchangers 200 A, 200 B and 200 C may be computer controlled.
- Heat exchangers 200 A, 200 B and 200 C may include boiling chambers 205 A, 205 B and 205 C and a shell 210 .
- Heat exchangers 200 A, 200 B and 200 C may also include injectors or spray nozzles 215 A, 215 B, and 215 C for spraying the refrigerant, water, into boiling chamber 205 A, 205 B and 205 C of heat exchangers 200 A, 200 B and 200 C, respectively
- Heat exchangers 200 A, 200 B and 200 C cool the air through the expansion of a refrigerant, in this example water, into a larger volume, whereas the heat in the air to be cooled is transferred to the refrigerant to expand and vaporize the refrigerant.
- the system of FIG. 1 is run under a vacuum, or partial vacuum, to provide for the vaporization of water at temperature ranges that may exist in the air of a cabin, i.e. room temperatures.
- vacuum pump 800 is used to evacuate zeolite chambers 100 A, 100 B and 100 C, as well as the rest of the system, via values 909 A, 909 B and 909 C, respectively.
- the refrigerant in this example, water
- the refrigerant is pumped in liquid form from reservoir 400 into heat exchangers 200 A, 200 B and 200 C by pump 700 .
- Cooling inlet values 903 A, 903 B and 903 C may be opened, either separately or in combination, and at various apertures, to introduce the refrigerant into the expansion chambers of each of heat exchangers 200 A, 200 B and 200 C via spray nozzles 215 A, 215 B, and 215 C.
- Cooling inlet values 903 A, 903 B, and 903 C may be opened or closed, or their apertures adjusted, to control the amount of water entering the expansion chambers to control the amount of cooling of the air.
- heat exchangers 200 A, 200 B and 200 C may be house in an enclosure such as enclosure 150 .
- Enclosure 150 may also have insulation to help with the efficiency of the system. In other words, the insulation may help reduce the amount of ambient heat removed, which may be the engine compartment, rather than the heat from the fluid intended to be cooled, such as the air in a cabin of a vehicle.
- the system of FIG. 1 may also be a modular system.
- various components may be placed within an enclosure, such as enclosure 150 , to allow for interchangeability of various component parts.
- the system may be comprised of a heat exchanger module (not shown), a zeolite chamber module (not shown) and a condenser and reservoir module (not shown).
- Each module may have contained within the module the components of FIG. 1 described herein. It should be noted that the module designations and functionality is for exemplary purposes only.
- Cooling outlet valves 904 A, 904 B and 904 C are opened to allow the now vaporized refrigerant to travel to the particular zeolite chambers operating in the cooling, or adsorption, mode.
- zeolite chamber 100 B is in cooling mode, thus valve 905 B is open to allow the water vapor to enter zeolite chamber 100 B while values 905 A and 905 C are closed to prevent water vapor from entering zeolite chambers 100 A and 100 C, respectively.
- 905 B is closed.
- 905 A or 905 C may be opened to switch zeolite chamber 100 A or 100 C, respectively, to cooling mode contemporaneously with the switching of zeolite chamber 100 B to recharging mode.
- the present invention is not limited to continuous cooling. In other words, there may be delay in switching a zeolite chamber from recharging to cooling mode.
- heat is energy source. If heat is used, it can be, but without limitation, external heat, solar heat, waste engine heat or heat from an auxiliary heating unit such as a diesel heater. In the present example, engine exhaust heat is used.
- valve 901 A and value 906 A are opened.
- Valve 901 B/ 906 B and 901 C/ 906 C control entry of the heat into zeolite chambers 100 B and 100 C, respectively.
- Other heat sources may be used.
- valve 705 A is used to control the entry of diesel heater heat to the chambers.
- the separated vapor is then diffused toward cooling reservoir 500 , through the coolant 80 within the coolant reservoir 500 where the vapor is cooled and condenses, and then is transported to reservoir 400 to await being transported back to the heat exchangers 200 A, B, C to continue the cycle.
- This may be computer controlled via a valve system.
- the zeolite chamber 100 A must be recharged and this is done by heating the mixture and creating desorption of vapor from the desiccant 50 , then cooling the desiccant 50 .
- Zeolite is the preferred desiccant 50 and desorption occurs when the zeolite reaches a certain temperature, and is unable to adsorb the vapor.
- the heat is circulated through the zeolite via snaking tubes 120 A, 120 B and 120 C for zeolite chambers 100 A, 100 B and 100 C, respectively.
- the zeolite is cooled in preparation for the next time the zeolite chamber is in cooling mode.
- a coolant may be used.
- valves 901 A, 902 A and 906 A are closed and valves 907 A and 908 A are opened. Cooling for zeolite chambers 100 B and 100 C may be provided by manipulation of valves 901 B/ 902 B/ 906 B/ 907 B/ 908 B and 901 C/ 902 C/ 906 C/ 907 C/ 908 C, respectively.
- Coolant 80 examples of which may be, without limitation, water, air, glycol, is pumped through snaking tube 120 A of zeolite chamber 100 A. Coolant 80 is cooled by cooler 1000 , which in some configurations may transfer the heat from coolant 80 to ambient air. Although a single condenser 1000 is shown by way of illustration, it should be understood that condenser 1000 may be one or more condenser units. Further, the position of condenser 1000 is merely exemplary, as one or more cooling units may be placed either before or after, or both, coolant reservoir 500 .
- Coolant reservoir 500 is configured to both act as a reservoir tank for coolant 80 and to provide contact between coolant 80 and the desorbed water vapor via tubing 615 , thus cooling and condensing the water vapor, which is then stored in reservoir 400 .
- the zeolite chambers 100 A, 100 B and 100 C can be sized such that each can provide cooling for a time period allowing the previously used desiccant compartment to recharge. In times of heavy load, the zeolite chambers may be unable to dissipate heat effectively. In that case, some of the coolant 80 will be channeled to the chamber in cooling mode. In this case, when 100 C is in cooling mode, valves 907 C and 908 C will be partially open to transfer heat from zeolite to the coolant 80 .
- one or more components of the system of FIG. 1 may be disposed within an enclosure.
- the system of FIG. 1 may be within a combination of two or more enclosures.
- FIG. 2 is an illustration of an exemplary desiccant cartridge that may be used in zeolite chambers 100 A, 100 B and 100 C.
- a replaceable desiccant cartridge 105 is shown.
- Desiccant cartridge 105 houses the desiccant and may be configured to be removable or detachable.
- Desiccant cartridge 105 may have a circular cross section, as shown in FIG. 2 or a rectangular or square cross section as shown in FIG. 3 .
- snaking tube 120 B within the desiccant cartridge 105 may be straight ( FIGS. 2 and 3 ) or serpentine ( FIG. 1 ). As shown in FIGS.
- the desiccant cartridge 105 may include a compartment wall 110 or shell as previously described, a desiccant case 106 (containing the desiccant 50 ) disposed within the compartment wall 110 , rings 111 , a cap 108 , and a compartment tubing aperture 109 . Rings 111 may be used to increase the heat transfer to and from desiccant cartridge 105 .
Abstract
An air conditioning system that includes desiccant compartments for holding a desiccant; a heat exchanger, a blower and a vessel. The heat exchanger can be filled with a heat transfer medium, while the blower blows ambient air by the heat exchanger such that the blown air is cooled and the heat exchanger is warmed such that thermal energy increases and is transferred from the air to the heat transfer medium causing the heat transfer medium to turn into vapor. The vapor is then diffused to one of the desiccant compartments such that the vapor is adsorbed onto the desiccant creating a mixture. Then an energy source is applied to the mixture such that the vapor and desiccant are separated. The separated vapor is transported to the vessel where it is condensed and then sent back to the heat exchanger, such that the system is able to be continuously operating.
Description
- This application is a continuation-in-part of U.S. patent application Ser. No. 12/136,288, entitled “Air Conditioning System,” filed Jun. 10, 2008, which is hereby incorporated by reference in its entirety.
- The invention described herein may be manufactured and used by or for the Government of the United States of America for governmental purposes without payment of any royalties thereon or therefor. The technology described herein was a subject invention under Cooperative Research and Development Agreement NCRADA-NAWCADPAX-07-121-A01 with OxiCool, Inc.
- The present invention relates to an air conditioning system.
- When sleeping at night, drivers of large trucks that operate over long distances and travel for many days often utilize sleeper compartments built into their truck cabin. This reduces the cost of lodgings while allowing truckers to sleep in rest areas on highways, thereby eliminating the need to detour off their routes to find and return from overnight lodging. Maintaining comfortable cabin temperatures during warm evenings, however, often means running the truck engine throughout the night to power the truck air conditioner. This uses considerable fuel, decreases engine life by continual operation, provides a continual source of environmental pollutants, and diminishes driver health by exposing the driver to elevated levels of the pollutants during sleep. In addition, the continuous vibration increases mechanical fatigue on truck tractor components, thereby decreasing time between repairs. Not running a truck air conditioner can lead to increased driver fatigue due to poor sleep or increased operating costs (use of motels/hotels).
- Military vehicles such as tanks or armored personnel carriers must also run vehicle engines or auxiliary power units to maintain internal air conditioning. Providing an auxiliary cooling system that does not rely on diesel fuel presents a smaller infrared signature and improves battlefield survivability.
- The present invention is directed to a continuous cooling air conditioning system. The present invention provides for the continuous cooling of various fluids, such as but not limited to, air from the cabin of a vehicle.
- In an exemplary and non-limiting configuration, a first chamber is in cooling mode to provide for cooling of a fluid whereas a second chamber is in recharging mode to prepare for operation in the cooling mode. As the first chamber finishes the adsorption process, thus nearing the end of its cooling capabilities, the second chamber is brought online in a cooling mode of operation to continue the cooling process. Thus, a seemingly continuous cooling process is provided for by the present invention. Further, in some configurations, because a plurality of desiccant chambers are handling the cooling load, it may be possible to reduce the size of the desiccant chambers. In one exemplary and non-limiting example, the desiccant used is zeolite and the refrigerant is water.
- An exemplary system may include at least two chambers having a desiccant in each chamber, at least one heat exchanger, a first fluid inlet to be cooled, and a second fluid inlet used to heat the desiccant to cause the desorption of the refrigerant from the desiccant. The exemplary system may also include a condenser for cooling and condensing the refrigerant after desorption from the desiccant. In one exemplary embodiment, the heat exchanger is configured to remove heat from the fluid to be cooled through the use of an expansion valve. As the refrigerant enters the heat exchanger, the expansion value provides for the vaporization of the liquid refrigerant entering the heat exchanger. The heat of vaporization is supplied by the fluid to be cooled. The vaporized refrigerant is adsorbed by the desiccant in the first chamber operating in the cooling mode. The second fluid is used to heat the desiccant in the second chamber to cause the water vapor to be desorbed. The water vapor is then cooled and condensed for use back in the heat exchanger.
- It is a feature of the present invention to provide an air conditioning system that is able to be utilized in a vehicle and is able to operate independently of a vehicle engine.
- It is a feature of the present invention to provide an eco-friendly air conditioning system that can operate effectively for an extended period of time.
- It is an additional feature of the present invention to provide an air conditioning system that provides continuous cooling to an enclosed space utilizing a forced convection system based on desiccant based adsorption.
- This summary is provided to introduce a selection of concepts in a simplified form that are further described below in the Detailed Description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
- Other features of the subject matter are described below.
- These and other features, aspects and advantages of the present invention will become better understood with reference to the following description and appended claims, and accompanying drawings. For the purpose of illustrating the subject matter, there are shown in the drawings exemplary embodiments of the subject matter; however, the presently disclosed subject matter is not limited to the specific methods, compositions, and devices disclosed. In addition, the drawings are not necessarily drawn to scale. In the drawings:
-
FIG. 1 is an exemplary and non-limiting side view of an embodiment of the air conditioning unit; -
FIG. 2 a is an exemplary and non-limiting exploded perspective view of another embodiment of the desiccant compartment; -
FIG. 2 b is an exemplary and non-limiting perspective view of that embodiment; -
FIG. 2 c is an exemplary and non-limiting perspective view showing the internal portion of that embodiment; -
FIG. 3 a is an exemplary and non-limiting exploded perspective view of another embodiment of the desiccant compartment; -
FIG. 3 b is an exemplary and non-limiting perspective view of that embodiment; and -
FIG. 3 c is an exemplary and non-limiting perspective view showing the internal portion of that embodiment. - The present subject matter may be understood more readily by reference to the following detailed description taken in connection with the accompanying figures and examples, which form a part of this disclosure. It is to be understood that this invention is not limited to the specific devices, methods, applications, conditions or parameters described and/or shown herein, and that the terminology used herein is for the purpose of describing particular embodiments by way of example only and is not intended to be limiting of the claimed invention.
- Also, as used in the specification including the appended claims, the singular forms “a,” “an,” and “the” include the plural, and reference to a particular numerical value includes at least that particular value, unless the context clearly dictates otherwise. The term “plurality”, as used herein, means more than one. When a range of values is expressed, another embodiment includes from the one particular value and/or to the other particular value. Similarly, when values are expressed as approximations, by use of the antecedent “about,” it will be understood that the particular value forms another embodiment. All ranges are inclusive and combinable.
- Disclosed herein is a fluid cooling system that provides for essentially or apparently constant cooling of the fluid and, in some configurations, a reduction in size of certain components of the invention. In an example, one desiccant chamber is in a cooling mode of operation whereas a second chamber is being prepared for the cooling mode through the application of heat to drive off the adsorbed water vapor from a prior cooling cycle, is in a recharging mode. Once the chamber in the cooling mode has adsorbed enough water vapor to either be ineffective at adsorption or the rate of adsorption has decreased below a specified minimum rate, the chamber in the cooling mode is reconfigured to be in the recharging mode and the chamber in the recharging mode is configured to be in the cooling mode, which may or may not occur simultaneous or in any specific order.
- The desiccant may be defined as, but without limitation, a drying agent. Examples of desiccant that can be utilized are, without limitation, amorphous silica gel, diatomaceous earth, calcium aluminosilicate clay, molecular sieves and activated carbon. The following description uses zeolite as the desiccant by way of example only. A zeolite may be described, but without limitation, as hydrous aluminum silicate in porous granules. Possible zeolites that can be utilized are, but without limitation, analcime, chabazite, heulandite, natrolite, phillipsite, and stilbite.
- A non-limiting system of the present subject matter is shown in
FIG. 1 . The system ofFIG. 1 may be mounted in various places of a vehicle such as, but without limitation, the rear of a truck sleeper compartment, at or near the undercarriage of the vehicle, or any location or position practicable. In the exemplary and non-limiting system ofFIG. 1 , the desiccant used is zeolite and the refrigerant used is water, though it should be understood that the present invention is not limited solely to zeolite or water, or the combination of zeolite and water, as other appropriate desiccants and refrigerants may be used. - In
FIG. 1 , in an exemplary configuration,zeolite chamber 100A is in recharging mode,zeolite chamber 100B is in cooling mode, andzeolite chamber 100C is in standby mode. It should be noted that the present invention is not limited to two chambers and may include more than two desiccant chambers depending upon the load conditions of the system or other factors. For example, in the present invention,zeolite chamber 100C may be used to augment or supplement the vapor adsorption capabilities ofzeolite chamber 100B while in cooling mode (orzeolite chamber 100A when it is in cooling mode). Further,zeolite chamber 100C may be used as a backup should either or bothzeolite chambers 100A and/or 100B fail or be unusable for the particular purpose. - Each zeolite chamber may be, without limitation, a tank, container, receptacle or structure for holding a solid, liquid or gas. The zeolite chambers may be manufactured from any material practicable.
FIG. 1 shows three zeolite chambers, 100A, 100B, and 100C; however, as discussed above, the system ofFIG. 1 may utilize as little as two zeolite chambers and as many as required or desired.Zeolite chambers Zeolite chambers Zeolite chamber 100B includes a compartment wall 110B and compartment tubing, snaking tube, 120B. In one of the embodiments, thecompartment wall 110 may include an outer skin 114 and aninner skin 112, which together create an air channel.Inner skin 112 may also includeperforations 1100B, which may be used to keep the zeolite inzeolite chamber 100B while providing for the transfer of water vapor. Perforated tubes, shown astube 1200C ofzeolite chamber 100C, may be used to facilitate the movement of water vapor as well. - Snaking
tube 120B may be configured to prevent the intermixing of the contents of snakingtube 120B with the vapor and/or desiccant disposed within thezeolite chamber 100B. Snakingtube 120B may include valves to control the flow of any fluids in snakingtube 120B. Snakingtube 120B may be manufactured from any type of material that is practicable. Snakingtube 120B may pass throughzeolite chamber 100B in a straight line or in a serpentine manner as shown inFIGS. 1 and 2 . As shown inFIG. 1 , the tubing may includerings 111 disposed around the circumference of the snakingtube 120B to increase heat transfer.Zeolite chamber 100B may be comprised ofreplaceable desiccant cartridge 105 that can be removed or attached.Desiccant cartridge 105 is discussed in more detail with regards toFIGS. 2 and 3 , below. - In the exemplary system of
FIG. 1 , pump 300 pulls air, the fluid to be cooled, from the cabin of a vehicle into the system ofFIG. 1 . The air circulates aroundheat exchangers air outlet 250. It should be noted that, although not specifically shown inFIG. 1 , the system ofFIG. 1 may be configured to provide for cooling by one or more than one heat exchanger. The use of the three heat exchangers, 200A, 200B and 200C, is for exemplary purposes only. The exiting coolant air at 250 could be blown directly where cooling is required. Alternately, a cooling fluid could be used which is then circulated in an auxiliary heat exchanger and blower combination to provide cooling where required. If air is used,heat exchanger 200A may be optimized to dehumidify the air and thenheat exchangers heat exchangers - Heat exchangers 200A, 200B and 200C along with any corresponding piping and valves may be calibrated such that they correspond with the number and size of
zeolite chambers chambers spray nozzles chamber - Heat exchangers 200A, 200B and 200C cool the air through the expansion of a refrigerant, in this example water, into a larger volume, whereas the heat in the air to be cooled is transferred to the refrigerant to expand and vaporize the refrigerant. In the present example, the system of
FIG. 1 is run under a vacuum, or partial vacuum, to provide for the vaporization of water at temperature ranges that may exist in the air of a cabin, i.e. room temperatures. in the present example,vacuum pump 800 is used to evacuatezeolite chambers values - The refrigerant, in this example, water, is pumped in liquid form from
reservoir 400 intoheat exchangers pump 700. Cooling inlet values 903A, 903B and 903C may be opened, either separately or in combination, and at various apertures, to introduce the refrigerant into the expansion chambers of each of heat exchangers 200A, 200B and 200C viaspray nozzles heat exchangers enclosure 150.Enclosure 150 may also have insulation to help with the efficiency of the system. In other words, the insulation may help reduce the amount of ambient heat removed, which may be the engine compartment, rather than the heat from the fluid intended to be cooled, such as the air in a cabin of a vehicle. - As with other components of the present invention, the system of
FIG. 1 may also be a modular system. In other words, various components may be placed within an enclosure, such asenclosure 150, to allow for interchangeability of various component parts. For example, the system may be comprised of a heat exchanger module (not shown), a zeolite chamber module (not shown) and a condenser and reservoir module (not shown). Each module may have contained within the module the components ofFIG. 1 described herein. It should be noted that the module designations and functionality is for exemplary purposes only. -
Cooling outlet valves zeolite chamber 100B is in cooling mode, thusvalve 905B is open to allow the water vapor to enterzeolite chamber 100B whilevalues zeolite chambers zeolite chamber 100B is switched from cooling to recharging mode, 905B is closed. To provide for continuous cooling of the fluid to be cooled, 905A or 905C may be opened to switchzeolite chamber zeolite chamber 100B to recharging mode. The present invention is not limited to continuous cooling. In other words, there may be delay in switching a zeolite chamber from recharging to cooling mode. - While in recharging mode, energy is applied to the desiccant in
zeolite chamber 100A to cause the desorption of water vapor from the desiccant. Various energy sources may be used, in the system ofFIG. 1 . In the present example, heat is energy source. If heat is used, it can be, but without limitation, external heat, solar heat, waste engine heat or heat from an auxiliary heating unit such as a diesel heater. In the present example, engine exhaust heat is used. - As shown in
FIG. 1 , the engine exhaust heat enters the system ofFIG. 1 via valueheat inlet value 705B, then moves toward and into the compartment tubing of the particular zeolite chamber to be heated. Becausezeolite chamber 100A is in recharging mode,valve 901A andvalue 906A are opened.Valve 901B/906B and 901C/906C control entry of the heat intozeolite chambers valve 705A is used to control the entry of diesel heater heat to the chambers. - The separated vapor is then diffused toward cooling
reservoir 500, through thecoolant 80 within thecoolant reservoir 500 where the vapor is cooled and condenses, and then is transported toreservoir 400 to await being transported back to theheat exchangers 200A, B, C to continue the cycle. This may be computer controlled via a valve system. Thezeolite chamber 100A must be recharged and this is done by heating the mixture and creating desorption of vapor from the desiccant 50, then cooling the desiccant 50. Zeolite is the preferred desiccant 50 and desorption occurs when the zeolite reaches a certain temperature, and is unable to adsorb the vapor. To heat the zeolite in the particular chamber, the heat is circulated through the zeolite viasnaking tubes zeolite chambers - Once the water has been driven from the zeolite, or at least to a desired amount, the zeolite is cooled in preparation for the next time the zeolite chamber is in cooling mode. Although the zeolite can be cooled using various means, including ambient cooling, to increase the rate of cooling, a coolant may be used. In the present example, once
zeolite chamber 100A is ready to be cooled,valves valves zeolite chambers valves 901B/902 B 907B/908B and 901C// 906B/902 C 907C/908C, respectively./ 906C/Coolant 80, examples of which may be, without limitation, water, air, glycol, is pumped throughsnaking tube 120A ofzeolite chamber 100A.Coolant 80 is cooled by cooler 1000, which in some configurations may transfer the heat fromcoolant 80 to ambient air. Although asingle condenser 1000 is shown by way of illustration, it should be understood thatcondenser 1000 may be one or more condenser units. Further, the position ofcondenser 1000 is merely exemplary, as one or more cooling units may be placed either before or after, or both,coolant reservoir 500. -
Coolant reservoir 500 is configured to both act as a reservoir tank forcoolant 80 and to provide contact betweencoolant 80 and the desorbed water vapor viatubing 615, thus cooling and condensing the water vapor, which is then stored inreservoir 400. Thezeolite chambers coolant 80 will be channeled to the chamber in cooling mode. In this case, when 100C is in cooling mode,valves coolant 80. - As mentioned above, one or more components of the system of
FIG. 1 may be disposed within an enclosure. Alternatively, the system ofFIG. 1 may be within a combination of two or more enclosures. -
FIG. 2 is an illustration of an exemplary desiccant cartridge that may be used inzeolite chambers FIG. 2 , areplaceable desiccant cartridge 105 is shown.Desiccant cartridge 105 houses the desiccant and may be configured to be removable or detachable.Desiccant cartridge 105 may have a circular cross section, as shown inFIG. 2 or a rectangular or square cross section as shown inFIG. 3 . As discussed earlier, snakingtube 120B within thedesiccant cartridge 105 may be straight (FIGS. 2 and 3 ) or serpentine (FIG. 1 ). As shown inFIGS. 2 and 3 , thedesiccant cartridge 105 may include acompartment wall 110 or shell as previously described, a desiccant case 106 (containing the desiccant 50) disposed within thecompartment wall 110, rings 111, acap 108, and acompartment tubing aperture 109.Rings 111 may be used to increase the heat transfer to and fromdesiccant cartridge 105. - Although the present invention has been described in considerable detail with reference to certain preferred embodiments thereof, other embodiments are possible. Therefore, the spirit and scope of the appended claims should not be limited to the description of the preferred embodiments) contained herein.
Claims (27)
1. An air conditioning system, comprising:
a first desiccant chamber initially configured to operate in a cooling mode and a second desiccant chamber initially configured to operate in a recharging mode, wherein the cooling mode provides for adsorption of a refrigerant in vapor form and the recharging mode provides for the desorption of the vapor;
at least one heat exchanger configured to vaporize the refrigerant in liquid form into the vapor by absorption of heat from a fluid to be cooled;
a desiccant contained within the first desiccant chamber and the second desiccant chamber configured to adsorb the vapor generated by the vaporization of the refrigerant;
an energy source for causing the vapor in the desiccant to be desorbed;
a condenser for cooling and condensing the vapor for use as the refrigerant in the at least one heat exchanger;
at least one valve that reconfigures the first desiccant chamber for operation in the recharging mode once the first desiccant chamber adsorbs a certain amount of the vapor; and
at least one valve that reconfigures the second desiccant chamber for operation in the cooling mode, wherein the second desiccant chamber is reconfigured contemporaneously with the reconfiguration of the first chamber so that the cooling process of the fluid to be cooled is maintained.
2. The system of claim 1 , wherein the desiccant is amorphous silica gel, diatomaceous earth, calcium aluminosilicate clay, molecular sieves, activated carbon, hydrous aluminum silicate, or combinations thereof.
3. The system of claim 2 , wherein the hydrous aluminum silicate is a zeolite.
4. The system of claim 3 , wherein the zeolite is analcime, chabazite, heulandite, natrolite, phillipsite, stilbite, or combinations thereof.
5. The system of claim 1 , wherein the desiccant is housed in a desiccant cartridge of the desiccant chamber.
6. The system of claim 5 , wherein the desiccant cartridge is removable.
7. The system of claim 5 , wherein the desiccant cartridge has a circular cross section.
8. The system of claim 1 , wherein the energy source is heat.
9. The system of claim 8 , wherein the heat is solar heat, waste engine heat or an auxiliary heating unit.
10. The system of claim 1 , wherein the energy source is applied to the desiccant via a heat sink.
11. The system of claim 1 , wherein the heat sink is a tube dispersed in the zeolite.
12. The system of claim 11 , wherein the tube further comprises rings.
13. The system of claim 1 , wherein the first zeolite chamber or the second zeolite chamber further comprises a perforated sieve configured to maintain the zeolite in the first zeolite chamber or the second zeolite chamber.
14. The system of claim 1 , wherein the first zeolite chamber and the second zeolite chamber further comprises at least one perforated tube configured to facilitate the movement of desorbed vapor to the condenser.
15. The system of claim 1 , wherein the refrigerant is water or glycol.
16. The system of claim 1 , wherein the system is operated at a partial vacuum.
17. The system of claim 16 , wherein a vacuum pump is used to evacuate the system prior to or during operation.
18. A modular air conditioning system comprising:
a heat exchanger module having at least one heat exchanger with a refrigerant;
an adsorption module having:
a first desiccant chamber initially configured to operate in a cooling mode;
a second desiccant chamber initially configured to operate in a recharging mode, wherein the cooling mode provides for the adsorption of a vapor and the recharging mode provides for the desorption of the vapor;
a first valve that reconfigures the first desiccant chamber for operation in the recharging mode once the first desiccant chamber adsorbs a certain amount of the vapor; and
a second valve that reconfigures the second desiccant chamber for operation in the cooling mode, wherein the second desiccant chamber is reconfigured contemporaneously with the reconfiguration of the first chamber so that the cooling process of the fluid to be cooled is maintained; and
a condenser module having at least a condenser for cooling and condensing the vapor for use as the refrigerant in the heat exchanger module.
19. The modular system of claim 18 , wherein the desiccant is amorphous silica gel, diatomaceous earth, calcium aluminosilicate clay, molecular sieves, activated carbon, or hydrous aluminum silicate, or combinations thereof.
20. The modular system of claim 19 , wherein the hydrous aluminum silicate is a zeolite.
21. The modular system of claim 20 , wherein the zeolite is analcime, chabazite, heulandite, natrolite, phillipsite, stilbite, or combinations thereof.
22. The modular system of claim 18 , wherein the adsorption module further comprises an energy inlet for heating the desiccant to cause the vapor adsorbed in the desiccant to be desorbed.
23. The modular system of claim 18 , wherein the adsorption module further comprises a coolant inlet, wherein the coolant is used in the condenser to cool and condense the vapor.
24. A method for providing cooling of a fluid, comprising:
operating a first desiccant chamber in cooling mode to adsorb a vapor generated by the expansion of a refrigerant;
operating a second desiccant chamber in a recharging mode by heating the desiccant to desorb the vapor; and
switching the operation of the first desiccant chamber to a recharging mode once the first desiccant chamber has adsorbed a certain amount of the vapor and contemporaneously switching the operation of the second desiccant chamber to a cooling mode.
25. The method of claim 24 , further comprising cooling and condensing the vapor that is desorbed.
26. The method of claim 24 , wherein the desiccant is zeolite and the refrigerant is water.
27. The method of claim 24 , further comprising a third desiccant chamber operating in the cooling mode, the recharging mode or a standby mode.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/537,852 US20100043462A1 (en) | 2008-06-10 | 2009-08-07 | Air Conditioning System |
US14/856,661 US10240823B2 (en) | 2008-06-10 | 2015-09-17 | Air conditioning system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/136,288 US7836723B2 (en) | 2008-06-10 | 2008-06-10 | Air conditioning system |
US12/537,852 US20100043462A1 (en) | 2008-06-10 | 2009-08-07 | Air Conditioning System |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/136,288 Continuation-In-Part US7836723B2 (en) | 2008-06-10 | 2008-06-10 | Air conditioning system |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/856,661 Continuation US10240823B2 (en) | 2008-06-10 | 2015-09-17 | Air conditioning system |
Publications (1)
Publication Number | Publication Date |
---|---|
US20100043462A1 true US20100043462A1 (en) | 2010-02-25 |
Family
ID=41695056
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/537,852 Abandoned US20100043462A1 (en) | 2008-06-10 | 2009-08-07 | Air Conditioning System |
US14/856,661 Active US10240823B2 (en) | 2008-06-10 | 2015-09-17 | Air conditioning system |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/856,661 Active US10240823B2 (en) | 2008-06-10 | 2015-09-17 | Air conditioning system |
Country Status (1)
Country | Link |
---|---|
US (2) | US20100043462A1 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070039343A1 (en) * | 2003-10-09 | 2007-02-22 | Daikin Industries, Ltd. | Air conditioning apparatus |
US20100132391A1 (en) * | 2007-04-30 | 2010-06-03 | Oxicool, Inc. | Motor cycle air conditioning system |
US20140199566A1 (en) * | 2011-06-14 | 2014-07-17 | Samsung Sdi Co., Ltd. | Drying device and battery system and motor vehicle having said drying device |
US20160258658A1 (en) * | 2015-03-03 | 2016-09-08 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Heat pump and cooling power generation method |
US9441868B1 (en) | 2013-03-15 | 2016-09-13 | Oxicool Inc. | Cooling systems and methods |
US9765998B2 (en) | 2013-03-15 | 2017-09-19 | Oxicool Inc. | Adsorption cooling systems and methods |
US10240823B2 (en) | 2008-06-10 | 2019-03-26 | Oxicool Inc | Air conditioning system |
US11015841B2 (en) | 2014-08-26 | 2021-05-25 | Oxicool Inc. | Molecular sieve chamber |
US20220111327A1 (en) * | 2019-06-25 | 2022-04-14 | Jgc Corporation | Method for operating adsorption device |
US11346590B2 (en) | 2016-06-14 | 2022-05-31 | Oxicool Inc. | Cooling system |
Families Citing this family (75)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015106007A1 (en) | 2014-01-10 | 2015-07-16 | Cardiac Pacemakers, Inc. | Methods and systems for improved communication between medical devices |
WO2016126968A1 (en) | 2015-02-06 | 2016-08-11 | Cardiac Pacemakers, Inc. | Systems and methods for safe delivery of electrical stimulation therapy |
US10046167B2 (en) | 2015-02-09 | 2018-08-14 | Cardiac Pacemakers, Inc. | Implantable medical device with radiopaque ID tag |
WO2016141046A1 (en) | 2015-03-04 | 2016-09-09 | Cardiac Pacemakers, Inc. | Systems and methods for treating cardiac arrhythmias |
US9853743B2 (en) | 2015-08-20 | 2017-12-26 | Cardiac Pacemakers, Inc. | Systems and methods for communication between medical devices |
EP3337559B1 (en) | 2015-08-20 | 2019-10-16 | Cardiac Pacemakers, Inc. | Systems and methods for communication between medical devices |
US9968787B2 (en) | 2015-08-27 | 2018-05-15 | Cardiac Pacemakers, Inc. | Spatial configuration of a motion sensor in an implantable medical device |
US9956414B2 (en) | 2015-08-27 | 2018-05-01 | Cardiac Pacemakers, Inc. | Temporal configuration of a motion sensor in an implantable medical device |
WO2017040115A1 (en) | 2015-08-28 | 2017-03-09 | Cardiac Pacemakers, Inc. | System for detecting tamponade |
US10226631B2 (en) | 2015-08-28 | 2019-03-12 | Cardiac Pacemakers, Inc. | Systems and methods for infarct detection |
CN108136189B (en) | 2015-08-28 | 2021-10-15 | 心脏起搏器股份公司 | System for behavioral response signal detection and therapy delivery |
WO2017044389A1 (en) | 2015-09-11 | 2017-03-16 | Cardiac Pacemakers, Inc. | Arrhythmia detection and confirmation |
US10065041B2 (en) | 2015-10-08 | 2018-09-04 | Cardiac Pacemakers, Inc. | Devices and methods for adjusting pacing rates in an implantable medical device |
EP3389775B1 (en) | 2015-12-17 | 2019-09-25 | Cardiac Pacemakers, Inc. | Conducted communication in a medical device system |
US10905886B2 (en) | 2015-12-28 | 2021-02-02 | Cardiac Pacemakers, Inc. | Implantable medical device for deployment across the atrioventricular septum |
WO2017127548A1 (en) | 2016-01-19 | 2017-07-27 | Cardiac Pacemakers, Inc. | Devices for wirelessly recharging a rechargeable battery of an implantable medical device |
CN109069840B (en) | 2016-02-04 | 2022-03-15 | 心脏起搏器股份公司 | Delivery system with force sensor for leadless cardiac devices |
US11116988B2 (en) | 2016-03-31 | 2021-09-14 | Cardiac Pacemakers, Inc. | Implantable medical device with rechargeable battery |
US10668294B2 (en) | 2016-05-10 | 2020-06-02 | Cardiac Pacemakers, Inc. | Leadless cardiac pacemaker configured for over the wire delivery |
US10328272B2 (en) | 2016-05-10 | 2019-06-25 | Cardiac Pacemakers, Inc. | Retrievability for implantable medical devices |
CN106369865B (en) * | 2016-05-30 | 2020-04-07 | 李华玉 | Double-effect fourth-class and fifth-class absorption heat pump |
US10512784B2 (en) | 2016-06-27 | 2019-12-24 | Cardiac Pacemakers, Inc. | Cardiac therapy system using subcutaneously sensed P-waves for resynchronization pacing management |
WO2018009569A1 (en) | 2016-07-06 | 2018-01-11 | Cardiac Pacemakers, Inc. | Method and system for determining an atrial contraction timing fiducial in a leadless cardiac pacemaker system |
US10426962B2 (en) | 2016-07-07 | 2019-10-01 | Cardiac Pacemakers, Inc. | Leadless pacemaker using pressure measurements for pacing capture verification |
CN109475743B (en) | 2016-07-20 | 2022-09-02 | 心脏起搏器股份公司 | System for utilizing atrial contraction timing references in a leadless cardiac pacemaker system |
US10391319B2 (en) | 2016-08-19 | 2019-08-27 | Cardiac Pacemakers, Inc. | Trans septal implantable medical device |
WO2018039322A1 (en) | 2016-08-24 | 2018-03-01 | Cardiac Pacemakers, Inc. | Cardiac resynchronization using fusion promotion for timing management |
US10780278B2 (en) | 2016-08-24 | 2020-09-22 | Cardiac Pacemakers, Inc. | Integrated multi-device cardiac resynchronization therapy using P-wave to pace timing |
US10758737B2 (en) | 2016-09-21 | 2020-09-01 | Cardiac Pacemakers, Inc. | Using sensor data from an intracardially implanted medical device to influence operation of an extracardially implantable cardioverter |
US10994145B2 (en) | 2016-09-21 | 2021-05-04 | Cardiac Pacemakers, Inc. | Implantable cardiac monitor |
EP3515553B1 (en) | 2016-09-21 | 2020-08-26 | Cardiac Pacemakers, Inc. | Leadless stimulation device with a housing that houses internal components of the leadless stimulation device and functions as the battery case and a terminal of an internal battery |
US10434314B2 (en) | 2016-10-27 | 2019-10-08 | Cardiac Pacemakers, Inc. | Use of a separate device in managing the pace pulse energy of a cardiac pacemaker |
JP7038115B2 (en) | 2016-10-27 | 2022-03-17 | カーディアック ペースメイカーズ, インコーポレイテッド | Implantable medical device with pressure sensor |
WO2018081275A1 (en) | 2016-10-27 | 2018-05-03 | Cardiac Pacemakers, Inc. | Multi-device cardiac resynchronization therapy with timing enhancements |
US10413733B2 (en) | 2016-10-27 | 2019-09-17 | Cardiac Pacemakers, Inc. | Implantable medical device with gyroscope |
US10561330B2 (en) | 2016-10-27 | 2020-02-18 | Cardiac Pacemakers, Inc. | Implantable medical device having a sense channel with performance adjustment |
WO2018081225A1 (en) | 2016-10-27 | 2018-05-03 | Cardiac Pacemakers, Inc. | Implantable medical device delivery system with integrated sensor |
US10434317B2 (en) | 2016-10-31 | 2019-10-08 | Cardiac Pacemakers, Inc. | Systems and methods for activity level pacing |
JP6719024B2 (en) | 2016-10-31 | 2020-07-08 | カーディアック ペースメイカーズ, インコーポレイテッド | Implantable medical device for activity level pacing |
US10583301B2 (en) | 2016-11-08 | 2020-03-10 | Cardiac Pacemakers, Inc. | Implantable medical device for atrial deployment |
WO2018089308A1 (en) | 2016-11-09 | 2018-05-17 | Cardiac Pacemakers, Inc. | Systems, devices, and methods for setting cardiac pacing pulse parameters for a cardiac pacing device |
EP3541471B1 (en) | 2016-11-21 | 2021-01-20 | Cardiac Pacemakers, Inc. | Leadless cardiac pacemaker providing cardiac resynchronization therapy |
US10881869B2 (en) | 2016-11-21 | 2021-01-05 | Cardiac Pacemakers, Inc. | Wireless re-charge of an implantable medical device |
US10881863B2 (en) | 2016-11-21 | 2021-01-05 | Cardiac Pacemakers, Inc. | Leadless cardiac pacemaker with multimode communication |
EP3541472B1 (en) | 2016-11-21 | 2023-06-07 | Cardiac Pacemakers, Inc. | Implantable medical device with a magnetically permeable housing and an inductive coil disposed about the housing |
US10639486B2 (en) | 2016-11-21 | 2020-05-05 | Cardiac Pacemakers, Inc. | Implantable medical device with recharge coil |
US11207532B2 (en) | 2017-01-04 | 2021-12-28 | Cardiac Pacemakers, Inc. | Dynamic sensing updates using postural input in a multiple device cardiac rhythm management system |
US10737102B2 (en) | 2017-01-26 | 2020-08-11 | Cardiac Pacemakers, Inc. | Leadless implantable device with detachable fixation |
WO2018140623A1 (en) | 2017-01-26 | 2018-08-02 | Cardiac Pacemakers, Inc. | Leadless device with overmolded components |
CN110225778B (en) | 2017-01-26 | 2023-06-13 | 心脏起搏器股份公司 | In-vivo device communication with redundant message transmission |
US10905872B2 (en) | 2017-04-03 | 2021-02-02 | Cardiac Pacemakers, Inc. | Implantable medical device with a movable electrode biased toward an extended position |
EP3606605B1 (en) | 2017-04-03 | 2023-12-20 | Cardiac Pacemakers, Inc. | Cardiac pacemaker with pacing pulse energy adjustment based on sensed heart rate |
US10918875B2 (en) | 2017-08-18 | 2021-02-16 | Cardiac Pacemakers, Inc. | Implantable medical device with a flux concentrator and a receiving coil disposed about the flux concentrator |
WO2019036600A1 (en) | 2017-08-18 | 2019-02-21 | Cardiac Pacemakers, Inc. | Implantable medical device with pressure sensor |
WO2019060302A1 (en) | 2017-09-20 | 2019-03-28 | Cardiac Pacemakers, Inc. | Implantable medical device with multiple modes of operation |
US11185703B2 (en) | 2017-11-07 | 2021-11-30 | Cardiac Pacemakers, Inc. | Leadless cardiac pacemaker for bundle of his pacing |
EP3717060B1 (en) | 2017-12-01 | 2022-10-05 | Cardiac Pacemakers, Inc. | Leadless cardiac pacemaker with reversionary behavior |
WO2019108545A1 (en) | 2017-12-01 | 2019-06-06 | Cardiac Pacemakers, Inc. | Methods and systems for detecting atrial contraction timing fiducials during ventricular filling from a ventricularly implanted leadless cardiac pacemaker |
WO2019108837A1 (en) | 2017-12-01 | 2019-06-06 | Cardiac Pacemakers, Inc. | Methods and systems for detecting atrial contraction timing fiducials within a search window from a ventricularly implanted leadless cardiac pacemaker |
WO2019108482A1 (en) | 2017-12-01 | 2019-06-06 | Cardiac Pacemakers, Inc. | Methods and systems for detecting atrial contraction timing fiducials and determining a cardiac interval from a ventricularly implanted leadless cardiac pacemaker |
US11529523B2 (en) | 2018-01-04 | 2022-12-20 | Cardiac Pacemakers, Inc. | Handheld bridge device for providing a communication bridge between an implanted medical device and a smartphone |
EP3735293B1 (en) | 2018-01-04 | 2022-03-09 | Cardiac Pacemakers, Inc. | Dual chamber pacing without beat-to-beat communication |
WO2019183507A1 (en) | 2018-03-23 | 2019-09-26 | Medtronic, Inc. | Av synchronous vfa cardiac therapy |
JP2021518192A (en) | 2018-03-23 | 2021-08-02 | メドトロニック,インコーポレイテッド | VfA cardiac resynchronization therapy |
CN111936046A (en) | 2018-03-23 | 2020-11-13 | 美敦力公司 | VFA cardiac therapy for tachycardia |
CN112770807A (en) | 2018-09-26 | 2021-05-07 | 美敦力公司 | Capture in atrial-to-ventricular cardiac therapy |
US11951313B2 (en) | 2018-11-17 | 2024-04-09 | Medtronic, Inc. | VFA delivery systems and methods |
US11679265B2 (en) | 2019-02-14 | 2023-06-20 | Medtronic, Inc. | Lead-in-lead systems and methods for cardiac therapy |
US11697025B2 (en) | 2019-03-29 | 2023-07-11 | Medtronic, Inc. | Cardiac conduction system capture |
US11213676B2 (en) | 2019-04-01 | 2022-01-04 | Medtronic, Inc. | Delivery systems for VfA cardiac therapy |
US11712188B2 (en) | 2019-05-07 | 2023-08-01 | Medtronic, Inc. | Posterior left bundle branch engagement |
US11305127B2 (en) | 2019-08-26 | 2022-04-19 | Medtronic Inc. | VfA delivery and implant region detection |
US11813466B2 (en) | 2020-01-27 | 2023-11-14 | Medtronic, Inc. | Atrioventricular nodal stimulation |
US11911168B2 (en) | 2020-04-03 | 2024-02-27 | Medtronic, Inc. | Cardiac conduction system therapy benefit determination |
US11813464B2 (en) | 2020-07-31 | 2023-11-14 | Medtronic, Inc. | Cardiac conduction system evaluation |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2078508A (en) * | 1934-08-14 | 1937-04-27 | Kelvinator Corp | Refrigerating apparatus |
US2201024A (en) * | 1938-06-07 | 1940-05-14 | Jr John W Brown | Method of making heat transfer pipe |
US3064819A (en) * | 1959-01-19 | 1962-11-20 | Henry Valve Co | Refrigerant drier |
US3270512A (en) * | 1963-12-09 | 1966-09-06 | James E Webb | Intermittent type silica gel adsorption refrigerator |
US5089119A (en) * | 1989-10-10 | 1992-02-18 | General Electric Company | Filter for a vapor compression cycle device |
JPH05126432A (en) * | 1991-11-06 | 1993-05-21 | Daikin Ind Ltd | Adsorption type air-conditioner |
US5526648A (en) * | 1993-10-13 | 1996-06-18 | Mercedes-Benz Ag | Sorption device and method of operating same for electric driven vehicle air conditioning |
US6240742B1 (en) * | 1999-12-01 | 2001-06-05 | The United States Of America As Represented By The Secretary Of The Navy | Modular portable air-conditioning system |
US6932148B1 (en) * | 2002-10-07 | 2005-08-23 | Scs Frigette | Vehicle heating and cooling system |
US7114266B2 (en) * | 2002-03-15 | 2006-10-03 | Bel-Art Products, Inc. | Apparatus and method for moisture control |
US20060254290A1 (en) * | 2003-06-06 | 2006-11-16 | Gaz Tranport Et Technigaz | Method for cooling a product, particularly, for liquefying a gas, and device for implementing this method |
US7152421B2 (en) * | 2003-09-25 | 2006-12-26 | Parks Gary L | Heating and cooling system |
Family Cites Families (54)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US620962A (en) | 1899-03-14 | Annular stamp-mill | ||
US651069A (en) | 1898-09-12 | 1900-06-05 | Wallace F Dunn | Egg-tester. |
US655736A (en) | 1900-04-04 | 1900-08-14 | Eduard Reisert | Fountain-pen. |
US656457A (en) | 1900-05-11 | 1900-08-21 | Isaac Hirsch | Knife. |
US685427A (en) | 1901-01-30 | 1901-10-29 | Donald Murray | Automatic actuating mechanism for key-operated machines. |
US693214A (en) | 1901-07-09 | 1902-02-11 | James Baker | Bicycle driving mechanism. |
US2195604A (en) | 1937-03-27 | 1940-04-02 | Servel Inc | Refrigeration |
US2532012A (en) | 1948-02-20 | 1950-11-28 | Don E Dasher | Air conditioning system |
US3581514A (en) | 1969-04-21 | 1971-06-01 | Smith Corp A O | Breather system for sealed storage structure |
US3774374A (en) | 1971-06-09 | 1973-11-27 | Gas Dev Corp | Environmental control unit |
US3744555A (en) | 1971-11-12 | 1973-07-10 | Gen Electric | Automatic control of liquid cooling garment by cutaneous and external auditory meatus temperatures |
US4113004A (en) | 1974-11-04 | 1978-09-12 | Gas Developments Corporation | Air conditioning process |
US4199959A (en) | 1977-03-24 | 1980-04-29 | Institute Of Gas Technology | Solid adsorption air conditioning apparatus and method |
US4180985A (en) | 1977-12-01 | 1980-01-01 | Northrup, Incorporated | Air conditioning system with regeneratable desiccant bed |
US4197714A (en) | 1978-06-05 | 1980-04-15 | Schweitzer Industrial Corporation | System and method for liquid absorption air conditioning |
US4527398A (en) | 1984-01-16 | 1985-07-09 | Schaetzle Walter J | Cascade desiccant air-conditioning/air drying process and apparatus with cold thermal energy storage |
US4700550A (en) | 1986-03-10 | 1987-10-20 | Rhodes Barry V | Enthalpic heat pump desiccant air conditioning system |
US4722099A (en) | 1986-12-01 | 1988-02-02 | Kratz Richard F | Protective motorcycle garments for maximum cooling |
US4761968A (en) | 1987-10-13 | 1988-08-09 | Pioneer Air Systems, Inc. | High efficiency air drying system |
USH902H (en) | 1989-01-27 | 1991-04-02 | The United States Of America As Represented By The Secretary Of The Navy | Air cooled helmet |
US5477706A (en) * | 1991-11-19 | 1995-12-26 | Rocky Research | Heat transfer apparatus and methods for solid-vapor sorption systems |
DE69126136T2 (en) | 1990-07-09 | 1997-12-11 | Deco Grand Inc | WATER PUMP |
JP2808488B2 (en) | 1990-11-27 | 1998-10-08 | 三菱重工業株式会社 | Adsorption cooling device |
US5146757A (en) | 1991-06-18 | 1992-09-15 | David Dearing | Helmet cooling system |
DE69432431T2 (en) | 1993-11-29 | 2004-01-29 | Maekawa Seisakusho Kk | Adsorption refrigeration device and method for regulating the refrigeration capacity of the same. |
CA2134168C (en) | 1994-10-24 | 2002-06-11 | Frederic Lagace | Ventilation system |
US5564124A (en) | 1995-04-20 | 1996-10-15 | Bio-Medical Devices, Inc | Personal body ventilation system |
CN2228281Y (en) | 1995-06-26 | 1996-06-05 | 长春热电半导体晶片股份有限公司 | Cold and leat temp. adjustable safety helmet |
JPH0999731A (en) | 1995-10-05 | 1997-04-15 | Denso Corp | Attracting type air conditioner |
US5660048A (en) | 1996-02-16 | 1997-08-26 | Laroche Industries, Inc. | Air conditioning system for cooling warm moisture-laden air |
JP2994303B2 (en) | 1997-04-11 | 1999-12-27 | 株式会社荏原製作所 | Air conditioning system and operating method thereof |
US6029462A (en) | 1997-09-09 | 2000-02-29 | Denniston; James G. T. | Desiccant air conditioning for a motorized vehicle |
JP2971843B2 (en) | 1997-10-09 | 1999-11-08 | 株式会社荏原製作所 | Dehumidifying air conditioner |
US6510696B2 (en) | 1998-06-15 | 2003-01-28 | Entrosys Ltd. | Thermoelectric air-condition apparatus |
US6564571B2 (en) | 2000-07-17 | 2003-05-20 | Liebert Corporation | High availability energy |
WO2002067707A1 (en) | 2001-02-23 | 2002-09-06 | Seft Development Laboratory Co.,Ltd. | Cooling cloths |
US6557365B2 (en) | 2001-02-28 | 2003-05-06 | Munters Corporation | Desiccant refrigerant dehumidifier |
CN1180205C (en) | 2001-05-16 | 2004-12-15 | 株式会社荏原制作所 | Dehumidifier |
JP2002081689A (en) | 2001-07-09 | 2002-03-22 | Sogo Musen:Kk | Portable air conditioner |
IL145094A0 (en) | 2001-08-23 | 2002-06-30 | Naaman Chibbi | Personal air conditioning |
US6751964B2 (en) | 2002-06-28 | 2004-06-22 | John C. Fischer | Desiccant-based dehumidification system and method |
JP2004237816A (en) | 2003-02-04 | 2004-08-26 | Denso Corp | Vehicular adsorption type air-conditioner |
US6924053B2 (en) | 2003-03-24 | 2005-08-02 | Ion America Corporation | Solid oxide regenerative fuel cell with selective anode tail gas circulation |
US6854279B1 (en) | 2003-06-09 | 2005-02-15 | The United States Of America As Represented By The Secretary Of The Navy | Dynamic desiccation cooling system for ships |
JP2005076168A (en) | 2003-08-28 | 2005-03-24 | Shogo Tsuchida | Extremely small air-conditioner |
US20050091988A1 (en) | 2003-10-29 | 2005-05-05 | Stewart Neal G. | Temperature controlled food transport containers suitable for limited power capacity vehicles |
US7166149B2 (en) | 2004-01-12 | 2007-01-23 | Uop Llc | Adsorption process for continuous purification of high value gas feeds |
US20050161193A1 (en) | 2004-01-23 | 2005-07-28 | Mckenzie Chris | Seat heating and cooling system |
US20060191270A1 (en) | 2005-02-25 | 2006-08-31 | Ray Warren | Air conditioning system for a garment |
US20070028769A1 (en) | 2005-08-05 | 2007-02-08 | Eplee Dustin M | Method and apparatus for producing potable water from air including severely arid and hot climates |
JP4816231B2 (en) | 2005-10-07 | 2011-11-16 | 日本エクスラン工業株式会社 | Desiccant air conditioning system |
CN101715535B (en) | 2007-04-30 | 2012-01-11 | 奥西库尔有限公司 | Motor cycle air conditioning system |
US7836723B2 (en) * | 2008-06-10 | 2010-11-23 | The United States Of America As Represented By The Secretary Of The Navy | Air conditioning system |
US20100043462A1 (en) | 2008-06-10 | 2010-02-25 | Oxicool, Inc. | Air Conditioning System |
-
2009
- 2009-08-07 US US12/537,852 patent/US20100043462A1/en not_active Abandoned
-
2015
- 2015-09-17 US US14/856,661 patent/US10240823B2/en active Active
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2078508A (en) * | 1934-08-14 | 1937-04-27 | Kelvinator Corp | Refrigerating apparatus |
US2201024A (en) * | 1938-06-07 | 1940-05-14 | Jr John W Brown | Method of making heat transfer pipe |
US3064819A (en) * | 1959-01-19 | 1962-11-20 | Henry Valve Co | Refrigerant drier |
US3270512A (en) * | 1963-12-09 | 1966-09-06 | James E Webb | Intermittent type silica gel adsorption refrigerator |
US5089119A (en) * | 1989-10-10 | 1992-02-18 | General Electric Company | Filter for a vapor compression cycle device |
JPH05126432A (en) * | 1991-11-06 | 1993-05-21 | Daikin Ind Ltd | Adsorption type air-conditioner |
US5526648A (en) * | 1993-10-13 | 1996-06-18 | Mercedes-Benz Ag | Sorption device and method of operating same for electric driven vehicle air conditioning |
US6240742B1 (en) * | 1999-12-01 | 2001-06-05 | The United States Of America As Represented By The Secretary Of The Navy | Modular portable air-conditioning system |
US7114266B2 (en) * | 2002-03-15 | 2006-10-03 | Bel-Art Products, Inc. | Apparatus and method for moisture control |
US6932148B1 (en) * | 2002-10-07 | 2005-08-23 | Scs Frigette | Vehicle heating and cooling system |
US20060254290A1 (en) * | 2003-06-06 | 2006-11-16 | Gaz Tranport Et Technigaz | Method for cooling a product, particularly, for liquefying a gas, and device for implementing this method |
US7152421B2 (en) * | 2003-09-25 | 2006-12-26 | Parks Gary L | Heating and cooling system |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7905108B2 (en) * | 2003-10-09 | 2011-03-15 | Daikin Industries, Ltd. | Air conditioning apparatus |
US20070039343A1 (en) * | 2003-10-09 | 2007-02-22 | Daikin Industries, Ltd. | Air conditioning apparatus |
US9513037B2 (en) | 2007-04-30 | 2016-12-06 | Oxicool, Inc. | Motor cycle air conditioning system |
US20100132391A1 (en) * | 2007-04-30 | 2010-06-03 | Oxicool, Inc. | Motor cycle air conditioning system |
US8739566B2 (en) | 2007-04-30 | 2014-06-03 | Oxicool, Inc. | Motor cycle air conditioning system |
US10240823B2 (en) | 2008-06-10 | 2019-03-26 | Oxicool Inc | Air conditioning system |
US20140199566A1 (en) * | 2011-06-14 | 2014-07-17 | Samsung Sdi Co., Ltd. | Drying device and battery system and motor vehicle having said drying device |
US9636625B2 (en) * | 2011-06-14 | 2017-05-02 | Robert Bosch Gmbh | Drying device and battery system and motor vehicle having said drying device |
US9441868B1 (en) | 2013-03-15 | 2016-09-13 | Oxicool Inc. | Cooling systems and methods |
US9765998B2 (en) | 2013-03-15 | 2017-09-19 | Oxicool Inc. | Adsorption cooling systems and methods |
US9772132B2 (en) | 2013-03-15 | 2017-09-26 | Oxicool Inc. | Cooling systems and methods |
US9903630B2 (en) | 2013-03-15 | 2018-02-27 | Oxicool Inc. | Cooling systems and methods |
US10808972B2 (en) | 2013-03-15 | 2020-10-20 | Oxicool Inc. | Adsorption-based cooling system |
US10876779B2 (en) | 2013-03-15 | 2020-12-29 | Oxicool Inc. | Cooling systems and methods |
US11015841B2 (en) | 2014-08-26 | 2021-05-25 | Oxicool Inc. | Molecular sieve chamber |
US20160258658A1 (en) * | 2015-03-03 | 2016-09-08 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Heat pump and cooling power generation method |
US10309694B2 (en) * | 2015-03-03 | 2019-06-04 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Heat pump and cooling power generation method |
US11346590B2 (en) | 2016-06-14 | 2022-05-31 | Oxicool Inc. | Cooling system |
US20220111327A1 (en) * | 2019-06-25 | 2022-04-14 | Jgc Corporation | Method for operating adsorption device |
Also Published As
Publication number | Publication date |
---|---|
US20160033177A1 (en) | 2016-02-04 |
US10240823B2 (en) | 2019-03-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US10240823B2 (en) | Air conditioning system | |
US7836723B2 (en) | Air conditioning system | |
US6807820B2 (en) | Heat storage system for vehicle, with adsorbent | |
KR930008821B1 (en) | Refrigerating system | |
ES2304023T3 (en) | AIR CONDITIONING INSTALLATION FOR CARS WITH ADSORTION HEAT PUMPS. | |
JP2022000604A (en) | Division level adsorption cooling system | |
US9618238B2 (en) | Adsorption refrigerator | |
JPH0999731A (en) | Attracting type air conditioner | |
US9789746B2 (en) | Adsorption air-conditioning system | |
US20100192602A1 (en) | Absorption cooling system and cooling method | |
WO2006137930A2 (en) | A multi-effect cooling system utilizing heat from an engine | |
US9696063B2 (en) | Cooling systems and related methods | |
JP2004044848A (en) | Cooling system | |
Sharafian et al. | Critical analysis of thermodynamic cycle modeling of adsorption cooling systems for light-duty vehicle air conditioning applications | |
US20130283842A1 (en) | Climate-control device for a vehicle, and method for regulating a climate in a passenger compartment of a vehicle | |
EP2669603B1 (en) | Adsorber and adsorber-type heat pump | |
CN111149251A (en) | Method and device for tempering a battery assembly | |
WO2008114266A2 (en) | Apparatus and method for solar cooling and air conditioning | |
WO2011016809A1 (en) | Air conditioning system | |
JP4265370B2 (en) | Adsorption heat pump | |
CN106042821B (en) | Air conditioning system with vacuum enclosure | |
JP3295743B2 (en) | Adsorption refrigerator | |
EP1788324A2 (en) | Adsorption cooling system and cooling method | |
JP3774963B2 (en) | Heating system | |
RU2363523C2 (en) | Sorbing system including heat conducting element |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: OXICOOL, INC.,PENNSYLVANIA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BAROT, RAVIKANT T.;REEL/FRAME:023500/0926 Effective date: 20090929 Owner name: UNITED STATES GOVERNMENT, AS REPRESENTED BY THE SE Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KAUFMAN, JONATHAN WILLIAM;COLEMAN, STEPHEN M.;SIGNING DATES FROM 20091009 TO 20091023;REEL/FRAME:023500/0947 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |