Abstract: An air conditioner includes an outdoor unit including a compressor, first and second indoor heat exchangers to receive a refrigerant from the outdoor unit, the second indoor heat exchanger receiving the refrigerant independently of the first indoor heat exchanger, and a fan disposed between the first and second indoor heat exchangers. First and second refrigerant pipes form flow paths between the outdoor unit and the first and second indoor heat exchangers. First and second expansion valves are disposed on the first and second refrigerant pipes. Third and fourth refrigerant pipes form flow paths between the compressor and the first and second indoor heat exchangers. A first opening and closing valve selectively opens and closes a fifth refrigerant pipe to selectively allow refrigerant to flow between the second and third refrigerant pipes. Second and third opening and closing valves selectively open and close the second and third refrigerant pipes.

Abstract: To provide an air-cooled fuel cell system configured to suppress thermal runaway. An air-cooled fuel cell system, wherein the air-cooled fuel cell system comprises: a fuel cell, a first temperature acquirer, a second temperature acquirer and a controller; wherein the fuel cell comprises a cooling fin made of a metal; wherein the first temperature acquirer is disposed at a position which is near a cooling air inlet of the fuel cell and which is apart from the cooling fin; wherein the second temperature acquirer is disposed to come into contact with the cooling fin; wherein the controller monitors temperatures acquired by the first and second temperature acquirers.

Abstract: A method of controlling a transport climate control system includes detecting for leaking of working fluid from a climate control circuit. The method also includes isolating a high-pressure side of the climate control circuit when leaking of the working fluid is detected. A method of controlling a transport climate control circuit includes detecting for overcharge and/or an undercharge of the climate control circuit. A transport climate control system includes a climate control circuit and a climate controller that is configured to detect for working fluid leaking from the climate control circuit. The climate controller configured to isolate a high-pressure side of the climate control circuit when leaking of the working fluid is detected.

Abstract: A system for modulating hot gas reheat operation of a heating, ventilation, and/or air conditioning (HVAC) system with multiple compressors, wherein the HVAC system is configured to regulate air provided to multiple zones. The system includes a controller configured to respond to a call for dehumidification in the absence of a call for cooling by sequentially energizing a first compressor of the multiple compressors in a reheat mode of the first compressor, energizing a second compressor of the multiple compressors in a cooling mode of the second compressor, energizing a third compressor of the multiple compressors in a reheat mode of the third compressor initially at full capacity, and energizing a fourth compressor of the multiple compressors in a cooling mode of the fourth compressor.

Abstract: Disclosed embodiments provide techniques for providing vehicular recommendations based on driver habits. Embodiments utilize a variety of input data, including, but not limited to, static vehicular data, dynamic vehicular data, and/or environmental data. In embodiments, empirical rules are used to adjust recommended maintenance schedules based on the input conditions. Additionally, the adjusted recommendations along with unscheduled maintenance data are input to a machine learning system, such as a neural network. The machine learning system is used to further revise the maintenance schedule, estimate end of life of the vehicle, and issue recommendations for when to sell a vehicle and recommendations on attributes of a new vehicle for acquisition.

Abstract: A heating, ventilation, air conditioning and refrigeration system includes a diffuser comprising a plurality of diffuser elements located between a blower driving airflow through the system and a refrigeration coil used to cool the airflow prior to the distribution of the airflow to a building. Locating diffusers between the blower and the refrigeration coil reduces the extent to which the airflow carries moisture from condensate on the refrigeration coil, and can prevent circulation of air backwards through the refrigeration coil.

Abstract: The present invention provides There is provided a unitary air conditioning system with temperature and humidity loosely-coupled control and a use method. The system includes a fresh air inlet, a return air inlet, an air mixing mechanism, a front-end air guide mechanism, a first and a second heat exchangers, a back-end air guide mechanism, an air supply outlet, and an air exhaust outlet. The fresh air inlet and the return air inlet are in communication with the air mixing mechanism, which is in communication with one end of an air flow passage of each of the first and the second heat exchangers through the front-end air guide mechanism; and the other ends of the air flow passages of the first and the second heat exchangers are respectively in communication with the air supply outlet and the air exhaust outlet through the back-end air guide mechanism.

Abstract: A refrigerator includes a wall covering assembly having a top wall spaced-apart from a top wall of a liner, and a rear wall spaced-apart from a rear wall of the liner. The wall covering assembly includes a pattern of ports for providing outwardly directed cooled air to the refrigerator cabinet from a duct assembly. The duct assembly is configured to deliver cooled air through the ventilated portion of the wall covering assembly and also deliver cooled air to a front portion of the refrigerator cabinet via a downwardly directed air curtain. The air curtain disrupts the outward flow of air from the ventilated portion of the wall covering assembly before the cooled air reaches a gasket assembly disposed around the refrigerator doors. Angled venting slots disposed on the wall covering assembly direct air towards inner surfaces of the doors without disruption from the air curtain.

Abstract: A refrigerator includes a liner and a wall covering assembly to create a false wall within a refrigerator cabinet. The wall covering assembly includes a top wall spaced-apart from a top wall of the liner, and a rear wall spaced-apart from a rear wall of the liner. The rear wall of the wall covering assembly includes a ventilated portion for providing outwardly directed air to the refrigerator cabinet. A duct assembly is disposed between the wall covering assembly and the liner and is configured to deliver air through the ventilated portion of the wall covering assembly and also deliver air in the form of a downwardly directed air curtain at the front portion of the refrigerator cabinet. The air curtain disrupts the outward flow of air from the ventilated portion of the wall covering assembly at the front portion of the refrigerator cabinet.

Abstract: Conditioning systems and methods for providing cooling to a heat load can include an evaporative cooler arranged in a scavenger plenum with a pre-cooler upstream and a recovery coil downstream of the evaporative cooler. Outdoor or scavenger air can be conditioned in the evaporative cooler such that the conditioned scavenger air can provide cooling to a cooling fluid circulating through the recovery coil. The reduced-temperature cooling fluid can provide liquid cooling or air cooling for an enclosed space (for example, a data center) or for one or more devices that are enclosed or open to the atmosphere. Given the design and arrangement of the pre-cooler, evaporative cooler and recovery coil in the plenum, the system can operate in multiple modes. The pre-cooler can be configured to circulate a cooling fluid to condition the scavenger air. The pre-cooler fluid circuit can be coupled or de-coupled from a process cooling fluid circuit.

Abstract: Air conditioning units, systems, and methods that control temperature and humidity within a space in a building, for example, using a recovery wheel, a desiccant-based or passive dehumidification wheel, a primary cooling coil; and a secondary direct-expansion refrigeration circuit that includes a secondary circuit compressor, a secondary circuit evaporator coil, and a secondary circuit condenser coil. In various embodiments, the system forms a supply airstream that passes outdoor air first through the recovery wheel, then through the primary cooling coil, then through the secondary circuit evaporator coil, then through the dehumidification wheel, and then to the space. Further, in many embodiments, the system forms an exhaust airstream that passes return air from the space first through the secondary circuit condenser coil, then through the dehumidification wheel, and then through the recovery wheel. In some embodiments, various quantities of heat and moisture are transferred between the two airstreams.

Abstract: A heating, ventilation, air conditioning and refrigeration system includes a diffuser comprising a plurality of diffuser elements located between a blower driving airflow through the system and a refrigeration coil used to cool the airflow prior to the distribution of the airflow to a building. Locating diffusers between the blower and the refrigeration coil reduces the extent to which the airflow carries moisture from condensate on the refrigeration coil, and can prevent circulation of air backwards through the refrigeration coil.

Abstract: A system comprising an air conditioning unit operable to run at a capacity level determined by a difference between a temperature set-point and an actual temperature of an environment. The system comprises a humidity sensor, a temperature sensor, and a controller. The controller comprises a memory and a microprocessor. The controller is operable to operate the air conditioning unit in a normal mode and a tracking mode comprising operating the air conditioning unit at a reduced capacity comprising setting the temperature set-point of the air conditioning unit as a tracked actual temperature of the environment. The controller is operable to terminate the tracking mode if the actual temperature of the environment either rises above the first temperature value or drops below the second temperature value, or if the humidity level of the environment drops below the humidity threshold.

Abstract: An optimized system creates potable water from water vapor in the atmosphere, or purifies salt water or contaminated water. The system employs a condenser having multiple metal condensation surfaces. These condensation surfaces are cooled by coolant passing through conduits attached to the condensation surfaces. The coolant is cooled by a cooling unit. Power is supplied to the cooling unit by solar photovoltaic panels, or wind turbines, or the electric grid. The system can be mobile or fixed and can produce potable water at remote locations. The system may employ an evaporator which evaporates non-potable water into an air stream. The evaporator includes a solar or gas heater which increases the temperature of the air. Metals may be extracted from the salt water. If sewage is used, solid organic waste may be processed into combustible gas which is burned by an engine running a generator to power that system.

Abstract: Provided is an absorption type heat pump device including: a battery, a battery case, a regenerator, a condenser, an evaporator, an absorber, and a controller, in which, in the cooling operation, heat exchange between the absorber and the outside of the absorber is performed, the refrigerant having a liquid phase is supplied to the battery case from the condenser, and the refrigerant having a gas phase which is obtained by evaporating the refrigerant having a liquid phase by the heat of the battery, is supplied to the absorber, and in the heating operation, heat exchange between the absorber and the battery case is performed, the refrigerant having a gas phase or a liquid phase is supplied to the absorber from the evaporator, and the absorbing solution with relatively high concentration which is accommodated in the regenerator is supplied to the absorber.

Abstract: A vehicle air conditioner includes a cooling heat exchanger arranged in a casing, a compressor control portion which controls a compressor such that a cooling temperature at the cooling heat exchanger approaches a target cooling temperature, and a dryness determination portion which determines whether an outer surface of the cooing heat exchanger is dry or not based on a humidity in the casing. A target temperature determination portion determines the target cooling temperature to be any one of target temperatures including a first target temperature that is lower than a dew-point temperature in the casing, when the dryness determination portion determines that the cooling heat exchanger is not dry. The target temperature determination portion determines the target cooling temperature to be any one of the target temperatures other than the first target temperature, when the dryness determination portion determines that the cooling heat exchanger is dry.

Abstract: Systems and methods are described for controlling fan-only cooling. A first phase of a first cooling cycle may be initiated in an enclosure using an air conditioning system having a compressor and a fan that passes air over an evaporator coil. The first phase may include activation of the compressor and activation of the fan. A relative humidity may be measured within the enclosure during the first phase of the first cooling cycle. Subsequent to the first phase and in response to the relative humidity being determined to be below a threshold relative humidity, a second phase of the first cooling cycle may be initiated during which the fan is activated but the compressor is not activated.

Abstract: A humidity regulating apparatus comprises a hygroscopic wheel for absorbing moisture and water surrounding the hygroscopic wheel, a wetting means controlled to supply moisture or water to the hygroscopic wheel; a heating means for heating the moisture and water absorbed within the hygroscopic wheel to evaporate into vapor; a transporting means having a vapor inlet opening, a humidifying outlet opening, and a dehumidifying outlet opening, the vapor inlet opening is connected with the heating means for importing the vapor thereto, the transporting means is configured to switch between a state that the vapor inlet opening interconnects with the humidifying outlet opening with which the target environment is interconnected and a state that the vapor inlet opening interconnects with the dehumidifying outlet opening; and a condensing means, connected with the dehumidifying outlet opening, thus regulating the relative humidity in the target environment.

Abstract: A vehicle air-conditioning apparatus 10, installed in a vehicle having a no idling system (in which the engine stops rather than idling). The apparatus includes a blower fan 12 for sending air-conditioning air for temperature control in a vehicle compartment R to the vehicle compartment; a heater core 14 for heating the air-conditioning air by heat exchange with cooling water of an engine; and an automatic air controller 18 for executing temperature regulation control in the vehicle compartment by regulating an air-conditioning air volume to be heat exchanged with the heater core. The automatic air controller controls, on heating, during a no idling operation, driving of a blower fan so as to supply a determined air volume in response to the ambient air temperature detected by an ambient air temperature sensor 22a.

Abstract: Systems and methods of automatically operating dehumidifiers in response to dehumidifier operating conditions are disclosed herein. A method of operating a dehumidifier configured in accordance with one embodiment includes directing air flow through the dehumidifier at a first volumetric flow rate while the dehumidifier is operating at a first operating condition. The method further includes changing the first volumetric flow rate to a second volumetric flow rate when the first operating condition of the dehumidifier changes to a predetermined second operating condition.

Abstract: An aircraft air conditioning system including a process air line having a first end connected to a process air source to allow a flow of process air therethrough. A ram air channel of the air conditioning system allows ambient air flow therethrough. A heat exchanger unit is disposed in the process air line and arranged within the ram air channel to thermally couple process air flowing through the process air line to ambient air flowing through the ram air channel. A water extractor disposed in the process air line downstream of the heat exchanger unit extracts water from the process air. A water supply system supplies extracted water into the ram air channel. The water supply system has a control arrangement to control a fluid connection between the water extractor and the ram air channel in dependence on an operating state of the aircraft air conditioning system.

Abstract: A ventilation device is provided for use in conjunction with systems and methods provided for cooling data centers. A Make-Up Air Dehumidification/Humidification Unit for the introduction of ventilation air and control of humidity within the enclosed space is provided to support other system components. An objective of the systems and methods according to this disclosure is to provide the necessary rejection of heat while providing a capability to limitedly add ventilation air and control of the absolute moisture content of the air within a data center.

Abstract: A method and system is provided which receives a desired humidity level from a user for the refrigeration compartment of a refrigerator, determines the current humidity level, and then activates an atomizer in the refrigeration compartment to increase the humidity level if needed. The humidity in the refrigeration compartment may be determined based at least in part on the temperature of the refrigeration compartment, the defrost timer, the door opening times, and the compressor timer.

Abstract: A cooling assembly includes a device chamber containing a device chamber cooling medium, a heat exchanger including at least one cooling surface in contact with the device chamber cooling medium, a control unit configured to control the heat exchanger, a humidity sensor configured to detect a humidity level in the device chamber, and a receptacle. The control unit is configured to perform a dehumidification operation as a response to the humidity level exceeding a predetermined threshold value in the device chamber. The dehumidification operation includes lowering a temperature of the at least one cooling surface in order to condensate water from the device chamber cooling medium on the at least one cooling surface. The receptacle is configured to receive water dripping from the at least one cooling surface.

Abstract: A refrigerator having a dew prevention and/or control device and a method for preventing the formation of dew in and/or on the refrigerator includes a compressor adapted to compress a refrigerant, a condenser adapted to condense the refrigerant from the compressor, an evaporator adapted to cool air existing therearound by evaporating the refrigerant that passes through the condenser, a pipe between the condenser and the evaporator, configured to pass through the refrigerator body, humidity sensors and/or detectors configured to determine a humidity around the refrigerator, and a controller adapted to vary rotational speed of the fan in accordance with the humidity determined by the humidity sensors and/or detectors, thereby efficiently preventing the formation of dew on or in the refrigerator.

Abstract: An enclosure defines a confined space configured to store goods that can be advantageously maintained by controlling the water vapor levels to which the goods are exposed. A water vapor conversion element, at which liquid water is converted to water vapor, can be operably associated with the confined space to distribute that water vapor to the confined space. A water delivery unit is operatively associated with the water vapor conversion element and is configured to deliver water in liquid form to the water vapor conversion element. The water delivery unit can comprise a drip chamber configured to deliver the water essentially one drop at a time. The enclosure can comprise a drawer in a refrigeration appliance such as a household refrigerator. A sensor configured to determine the water vapor level present in the confined space can be operable to selectively control the distribution of water vapor to the confined space.

Abstract: An air conditioning system comprises a housing defining a first airflow path therein between an outside air inlet over a cooling coil and an outlet for delivering outside air from said outside air inlet over said coil to the outlet, a second airflow path between a return air inlet over the cooling coil and to the outlet for delivering return air over the cooling coil, and a third airflow path between the return air inlet and the outlet for delivering return air through the housing without passing over the cooling coil. The system includes outside, return, and bypass air dampers that are sequentially moveable between open and closed positions for directing air through or preventing air from entering the first, second, and third airflow paths, respectively. A controller independently controls the opening and closing of each damper in response to data received from the sensor.

Abstract: An integrated air conditioner that controls the operation of a water feed device according to the mode of use. The air conditioner includes a control section that determines whether or not exhaust heat from a condenser 3 is being released outdoors through an exhaust duct 7 according to whether or not an air intake duct 26 or an exhaust duct 7 is fitted, operates a water feed device 8 for leading drain wafer collected in the drain pan to the condenser 3 during both of a cooling operation and a dehumidifying operation if it determines that the heat to be released from the condenser 3 is being released outdoors, and operates the water feed device 8 during the cooling operation and stops the operation of the water feed device 8 during the dehumidifying operation if it determines that the exhaust heat from the condenser 3 is not being released outdoors.

Abstract: A moisture removal system and method employing air movers, dehumidifiers, heaters and attendant methods for reducing moisture in a construction project. The method and system include operating moisture removal equipment and testing moisture content levels sufficient to reduce the moisture content levels to a desired threshold to reduce the likelihood of mold growing or moisture damage in the construction after it is completed.

Abstract: A system for operating a cooling loop associated with a space and including at least one cooling coil and cooling fluid supply, the system including: a grain sensor positioned with respect to the space and providing a value indicative of the amount of moisture in the space; at least one pump fluidly coupled across the coil; at least one flow limiter fluidly coupled to the coil and limiting a flow of cooling fluid between the cooling fluid supply and the coil; and at least one controller electrically coupled to the flow limiter; wherein, the at least one controller selectively operates the flow limiter responsive to the value indicative of the amount of moisture in the space and the pump re-circulates cooling fluid independent of the cooling fluid supply dependently upon the flow limiter.

Abstract: The present invention provides a method for enhancing dehumidification of a conditioned space, while optimizing the effectiveness of Indoor Air Quality (IAQ) devices that are present in the HVAC system. After the system compressor is shut off, the actual space humidity is compared to the desired humidity. If the actual humidity is very close to or lower than the desired level the indoor blower (air handler) is allowed to continue running. However, if the actual humidity is greater than the desired level by a specified amount, the blower is forced off for a period of time proportional to the difference between the actual and desired humidity. At the next compressor activation, the blower is allowed to run as normal.

Abstract: An air conditioner for an electric vehicle is provided that can enhance a heating capacity or a coefficient of heating performance in a cold district and that can realize a heating, cooling or dehumidification operation via a single air conditioning cycle.

Abstract: A system for controlling moisture content in ambient airflow in a substantially enclosed structure having components. The system includes at least one humidity control apparatus and a plurality of sensors for detecting moisture content in airflow in a plurality of locations of the substantially enclosed structure. The plurality of sensors are located remotely from the at least one humidity control apparatus and are situated in relatively close proximity to the components that the at least one humidity control apparatus is configured to affect. The system also includes a controller configured to receive moisture content levels detected by one or more of the plurality of sensors and to control the at least one humidity control apparatus based upon the detected moisture content levels to vary the moisture content in the ambient airflow around the plurality of locations.

Abstract: A method of controlling a cooling element in order to decrease the thermal load on animals includes the step: —to start the cooling element when the air temperature exceeds a predetermined threshold value and/or a parameter, dependent on the relative humidity of air, exceeds a predetermined threshold value.

Abstract: A method for controlling an air conditioning system in a vehicle to reduce the humidity entering into the interior of the vehicle is disclosed. One aspect of the disclosure is that a measure for the amount of water collected at the fresh air intake port is determined as a function of a sensor signal. Thereafter, the determined measure for the amount of water collected at the fresh air intake port may be used to control the air conditioning system in such a manner that the amount of air that is drawn in through the fresh air intake port is reduced.

Abstract: A multi-stage compressor is provided that reliably prevents liquid compression in a higher stage compression mechanism and also prevents compression efficiency degradation resulting from overheating of injection refrigerant and from the lubricating oil being raised up together with the injection refrigerant. An injection circuit is branched into a plurality of circuits. A first circuit thereof is communicatively connected to an inside space of a closed housing that is at the same side as the higher stage compression mechanism with respect to an electric motor, and a second circuit is communicatively connected to an inside space of the closed housing that is opposite from the higher stage compression mechanism with respect to the electric motor. The first circuit and the second circuit are provided with a switching mechanism for switching the injection circuit to the first circuit or the second circuit according to the dryness of the injection refrigerant.

Abstract: A system and method for detecting low levels of humidity (i.e. less than 10%) inside an automotive vehicle is provided whereby the total absolute humidity inside the vehicle is determined by multiplying the number of occupants in the vehicle by an absolute humidity factor to obtain a total absolute humidity expelled by the vehicle occupants. The absolute humidity outside the vehicle is added to the total absolute humidity expelled by the vehicle occupants to arrive at a total vehicle cabin absolute humidity.

Abstract: A system and method for detecting low levels of humidity (i.e. less than 10%) inside an automotive vehicle is provided whereby the total absolute humidity inside the vehicle is determined by multiplying the number of occupants in the vehicle by an absolute humidity factor to obtain a total absolute humidity expelled by the vehicle occupants. The absolute humidity outside the vehicle is added to the total absolute humidity expelled by the vehicle occupants to arrive at a total vehicle cabin absolute humidity.

Abstract: An evaporative cooling system to cool the attic space only, in communication with the duct system. The cooling system includes a humidistat and thermostat. To control the evaporative cooling unit, according to the threshold temperature in the attic. Unit will have a smoke detector for safety, once activated will deactivate the evaporative cooling unit. Also, each fan switch will have a high temperature safety device, in the event of a fire or excessive heat in attic area, which will deactivate the cooling unit.

Abstract: System and methods for providing anti-condensation system are disclosed. A relative humidity (RH) sensor signal from a sensor on or near a control surface is received. An AC power input is received. A phase of the AC power input is modulated at least partly in response to the sensor signal in such a manner that a phase-modulated AC power output provided to a heater is a) substantially constant at a first power level (P1st) in a low RH region ranging from 0% RH to a first RH (RH1), b) varying as a function of the sensor signal from P1st to a second power level (P2nd) in an intermediate RH region ranging from RH1 to a second RH (RH2), and c) substantially constant at P2nd in a high RH region beginning at RH2.

Abstract: The present invention relates to a refrigerator unit and/or a freezer unit having at least one compartment located in the interior space of the refrigerator unit and/or freezer unit, wherein means are provided for air moistening by means of which the relative humidity in the compartment can be set.

Abstract: A detection and monitoring method and system which makes it possible to detect the presence of moisture problems when they manifest as abnormal humidity in one or more discrete ventilation zones within a building envelope. The abnormal humidity can then be investigated and resolved or mitigated to minimize the potential for building damage or adverse occupant health effects occur. The present invention provides an early warning system that will alert personnel of the occurrence of a moisture problem.

Abstract: This invention is about a climate simulation system (10) which provides with minimum energy consumption, the growth under preferred climate conditions and monitoring of living species such as plant, bacteria and insects in research laboratories, which minimizes the temperature fluctuation within the air-conditioning chamber and which provides the cooling of air-conditioning chamber (20) by use of cold accumulation.

Abstract: An evaporative cooling condenser for a household appliance cooling system includes a water source, a heat exchanger configured to contain a refrigerant, and a fluid heat transfer device, the fluid heat transfer device configured to receive water from the water source and apply the water to the heat exchanger for rejecting heat from the heat exchanger.

Abstract: In an air conditioning system for circulating cooled air to an enclosed space, a controller including a temperature sensor, a humidity sensor and a microcontroller for controlling the indoor fan or blower to prevent operation of same if a fan run-on mode is selected or continuous fan operation is selected and the humidity sensed in the enclosed space is greater than a predetermined amount. Continuous fan operation is allowed unless the humidity exceeds a user defined setpoint during an air cooling operating mode. If the humidity sensed is greater than the predetermined amount, the fan is operated only when the system is providing cooled air, such as when the system compressor is energized.

Abstract: A cross-flow heat exchanger, method of making a cross-flow heat exchanger, and a dehumidifier are provided. The cross-flow heat exchanger has an axial flow path extending through the heat exchanger from an inlet to an outlet and a transverse flow path oriented transversely to the axial flow path and extending through the heat exchanger from an inlet to an outlet. The transverse flow path is adjacent to and separate from the axial flow path. The surface area of the inlet of the axial flow path is less than the surface area of the outlet of the axial flow path. In a preferred embodiment, the heat exchanger has an exterior shape that is trapezoidal.

Abstract: An air conditioner includes a cooling heat exchanger configured to cool air, and a wet-state detection sensor attached to an air outlet surface of the cooling heat exchanger to detect a wet state of the air outlet surface due to condensation water. The air outlet surface of the cooling heat exchanger is tilted by an angle with respect to a horizontal direction or is perpendicular to the horizontal direction, and the wet-state detection sensor is arranged at a position in an upper half area of the air outlet surface in a direction perpendicular to the horizontal direction. Alternatively, the wet-state detection sensor is arranged at a position of the air outlet surface in a high-temperature area in which the temperature is higher than an average temperature of the air outlet surface. In this case, the high-temperature area may be positioned within the upper half area of the air outlet surface.

Abstract: In general terms, this disclosure is directed towards a vapor recovery system. The vapor recovery system comprises material specifically designed to recondense vapor during defrost cycle. This material would be of sufficient thermal mass to remain at a lower temperature during the defrost cycle. The vapor may be condensed directly in the evaporator compartment or indirectly by removing the vapor to a remotely located recondense medium. The vapor recovery system may comprise of at least one vapor tube, a fan, and a vapor recondenser. The vapor collection tube is located proximate an evaporator. The fan is in fluid communication with the vapor collection tube and the vapor recondenser.

Abstract: A vehicle air conditioning system includes a compressor, a condenser, an evaporator, a humidity sensor and a controller. The compressor is configured to compress refrigerant and the condenser is fluidly coupled to the compressor to receive the refrigerant from the compressor. The evaporator is fluidly coupled to the condenser to receive the refrigerant from the condenser and fluidly coupled to the compressor to supply the refrigerant to the compressor. The humidity sensor is positioned proximate the evaporator to detect moisture density of air passing through the evaporator towards a vehicle passenger compartment. The controller is operatively coupled to the humidity sensor and the compressor to cycle the compressor on and off to maintain the moisture density in the air being cooled by the evaporator and sensed by the humidity sensor below a predetermined moisture density threshold.

Abstract: An HVAC sensor is provided that includes a housing that houses a sensor. In some instances, a conduit is provided that has a first end that extends out the back of the HVAC sensor housing and adjacent to (and sometimes through) a hole in a duct of the HVAC system that is situated behind the HVAC sensor. The sensor itself may be positioned adjacent the other end of the conduit outside of the duct, and sometimes inside the housing of the HVAC sensor. The conduit may direct pressurized air emanating from the hole in the duct toward the sensor, thereby allowing the sensor to sense a parameter of the air in the duct without actually positioning the sensor within the duct.