Abstract: A stacked heat exchanger including a core portion having a plurality of plates stacked on each other to define a flat refrigerant passage and a flat heat medium passage. A first connection member that provides an inlet and an outlet for allowing the refrigerant to flow into the refrigerant passage. A second connection member that provides an inlet and an outlet for allowing the heat medium to flow into the heat medium passage, in which the inlet and the outlet are configured in a state where the heat medium flowing into the heat medium passage flows in an opposite direction to that of the refrigerant flowing in the refrigerant passage. The core portion includes an offset fin disposed in at least the refrigerant passage.

Abstract: A vehicular cooling device includes: a main cooling system including a compressor, a condenser, a liquid receiver, an expansion valve, an evaporator, a first refrigerant flow line connecting the compressor and the condenser, a second refrigerant flow line connecting the condenser and the liquid receiver, a third refrigerant flow line connecting the liquid receiver and the expansion valve, a fourth refrigerant flow line connecting the expansion valve and the evaporator, and a fifth refrigerant flow line connecting the evaporator and the compressor; and a sub-cooling system for enabling the refrigerant to flow to including the liquid receiver, the third refrigerant flow line, the expansion valve, the fourth refrigerant flow line, the evaporator, and a pre-cooling means disposed between the evaporator and the compressor, an absorbent tank storing an absorbent and a sixth refrigerant flow line connecting the absorbent tank to the fifth refrigerant flow line.

Abstract: A refrigerator includes an evaporator installed inside an evaporator case, a water tray provided below the evaporator and configured to collect water, a grill cover provided at a rear side of the evaporator case and configured to accommodate a blower fan, and a tray support provided in the grill cover to support the water tray. The grill cover may include a first grill cover having a fan suction portion configured to guide cold air passing through an evaporator to a blower fan. At least one supply port may protrude from a front surface of the first grill cover through which the cold air is supplied to a storage chamber. A water tray may be supported on an upper side of the at least one supply port.

Abstract: The present invention pertains to cooling, heating, and refrigeration cycles using, for example, phase transitions to pump heat. Embodiments of the present invention may comprise systems, methods, or processes for liquid-liquid phase transition refrigeration cycles pumping heat across temperature differences greater than the adiabatic temperature change of a liquid-liquid phase transition within said liquid-liquid phase transition refrigeration cycle. Embodiments of the present invention also may comprise powering said liquid-liquid phase transition refrigeration cycle using electricity, heat, ‘cold’, the mixing of a saltwater and freshwater, the mixing of high osmotic pressure liquid and low osmotic pressure liquid, or a combination thereof.

Abstract: A hydraulic control system includes a primary sump and an auxiliary sump. When the transmission fluid is warm, fluid remains in the auxiliary sump reducing the volume of oil in circulation throughout the transmission to reduce parasitic losses. An oil control valve is designed to block flow of oil from the auxiliary sump to the primary sump when the fluid is warm and to allow flow when the fluid is cold. The oil control valve also responds to transmission line pressure. At moderate temperatures, fluid is held in the auxiliary sump when the engine is running but drains back to the primary sump when the engine is off.

Abstract: A heat exchanger includes a core having a plurality of first layers for receiving a first fluid and at least one header arranged in fluid communication with the plurality of first layers. The at least one header is integrally formed ith the core via an additive manufacturing process. The header has a first microstructure and the core has a second, different microstructure.

Abstract: A refrigerant circuit of a refrigeration device, such as a household refrigeration device, has the following connected in series between a pressure connection and a suction connection of a compressor: a condenser, a first throttle point, a first evaporator for cooling a first storage chamber, a second throttle point. At least one of the first and second throttle points are adjusted to control the pressure in the first evaporator. The refrigerant circuit has a first branch with the first throttle point, the first evaporator and the second throttle point, and at least one second branch, parallel to the first branch, in which a third throttle point, a second evaporator arranged in thermal contact with a second storage chamber and a fourth throttle point are connected in series. At least one of the third and fourth throttle points can be adjusted to control the pressure in the second evaporator.

Abstract: An air channeling sub-system includes a mechanical cooling section and a direct evaporative cooling section. The direct evaporative cooling section is located downstream from the mechanical cooling section. Cooling air is channeled through the air channeling sub-system and into a room that receives supply air from the air channeling sub-system. If a first set of control conditions is met, the air channeling sub-systems is operated in an economizer mode. The economizer mode includes controlling an amount of return air that is blended with outside air and channeling the blended air through the direct evaporative cooling section to evaporate water into the blended air to control humidity. If a second set of control conditions is met, the air channeling sub-system is operated in a free cooling mode. The free cooling mode includes channeling cooling air to the room while the mechanical cooling section and direct evaporative cooling section are shutdown or inhibited from operation.

Abstract: According to certain embodiments, a thermostat is configured for use in a climate control system. The thermostat is operable to use two-way communication for communicating operational information between the thermostat and at least one rooftop unit (RTU) within the climate control system. For example, the two-way communication comprises sending first operational information to the RTU and receiving second operational information from the RTU. The operational information comprising one or more climate control commands, setpoints, configuration information, diagnostics, and/or sensor data. The thermostat is further operable to operate the climate control system based on the operational information communicated between the thermostat and the RTU.

Abstract: The present disclosure discloses a refrigerator having a separate ice-making system, comprising: a refrigerating compartment and an ice-making chamber disposed inside the refrigerating compartment, wherein an ice maker is arranged inside the ice-making chamber, the ice-making chamber is supplied with cold air by an ice-making refrigeration system including an ice-making evaporator, an ice-making air supply duct, an ice-making fan and an ice-making air return duct, the ice-making air supply duct and the ice-making air return duct are arranged in parallel, the ice-making evaporator is disposed inside the refrigerating compartment and outside the ice-making chamber, and the ice-making evaporator is communicated with the ice maker through the ice-making air supply duct and the ice-making air return duct to form a refrigerating circulation loop.

Abstract: This disclosure provides a control method and control system for two or more air-conditioning water chilling units, and air conditioning system. The control method includes: receiving at least one standby request generated by at least one air-conditioner water chilling unit of the two or more air-conditioning water chilling units based on a standby condition; determining whether or not two or more standby requests are received; generating standby sequence numbers of the air-conditioning water chilling units that send the standby requests according to the standby requests in case where two or more standby requests are received; and closing the air-conditioning water chilling units that send the standby requests according to a preset rule based on the standby sequence numbers.

Abstract: A Heating, Ventilation, and Air Conditioning (HVAC) controller may include a housing, a display, a printed wiring board, a flextail, and a temperature sensor. The housing may be configured to house the display, the printed wiring board, the flextail, and the temperature sensor. The flextail may extend from, for example, the display or other component of the HVAC controller, along the interior surface of the housing, and connect to a connector on the printed wiring board. The temperature sensor may be mounted on the flextail, and connected to the printed circuit board via the flex tail or other connection. In some cases, the temperature sensor may be positioned on the flextail such that when the flextail is connected to the printed wiring board, the temperature sensor is positioned adjacent a lower part of the housing, where less internal heat generated by the internal electrical components of the HVAC controller will reside.

Abstract: A heat pump system includes a heat pump cycle, a heat medium circulation circuit, and a refrigeration cycle device. The refrigeration cycle device is configured to perform a defrosting operation when a frost formation determiner determines that frost is formed. A throttle opening degree controller is configured to increase an opening degree in the defrosting operation. A pumping capacity controller is configured to increase a pumping capacity in the defrosting operation with increase of a required heating capacity required for heating a heating target fluid, the pumping capacity controller increasing the pumping capacity such that heat of refrigerant discharged from a compressor is transferred to heat medium in a first heat exchanger within a range in which a temperature of the refrigerant flowing into an outside heat exchanger is capable of melting the frost formed on the outside heat exchanger.

Abstract: A cross-connected refrigeration system includes a first refrigeration subsystem and a second refrigeration subsystem that are fluidly coupled by a header, each of the first refrigeration subsystem and the second refrigeration subsystem including a refrigeration loop including a compressor, a condenser, an expansion device, and an evaporator, and a heating loop including an electrically-controlled valve, and the evaporator, and a header connection that connects the refrigeration loops and the heating loops of the first refrigeration subsystem and the second refrigeration subsystem to a common header, respectively. The compressor in the first refrigeration subsystem is selectively deactivated and the electrically-controlled valve in the first refrigeration subsystem is selectively opened such that compressed gas from the compressor in the second refrigeration subsystem enters the heating loop of the first refrigeration subsystem and heats the evaporator of the first refrigeration subsystem.

Abstract: A radiant cooling system comprises an enclosure, a cooling element and a cooling device. The enclosure includes a first wall that is transmissive of infrared radiation. The cooling element is disposed in the enclosure. The cooling device is coupled to the cooling element. The cooling element provides cooling mainly by radiative exchange. The system promotes cooling by radiative exchange and significantly reduces condensation problems and is compatible with open and enclosed spaces. Thermal losses of cooling power to conductive and convective pathways are significantly reduced. The system comes in a variety of forms including flat, cylindrical and dome-like geometries.

Abstract: The present subject matter includes: heating medium channels, in the space in between a pair of plates facing each other, through which the heating medium flows; combustion gas channels, on the outer sides of the heating medium channels, through which combustion gas burned in a burner flows; and heating medium dispersion parts, having an opening part and a shutting part, on an inlet, through which the heating medium flows into the heating medium channel, and an outlet, through which the heating medium flows out from the heating medium channel.

Abstract: In certain embodiments, a transcritical refrigeration system provides refrigeration by circulating refrigerant through the system. The system includes a gas cooler, a heat exchanger, a high pressure expansion valve, a flash tank, refrigeration cases, and compressors. The gas cooler cools the refrigerant to a first temperature. The heat exchanger cools the refrigerant flowing from the gas cooler to the high pressure expansion valve to a second temperature. The high pressure expansion valve is coupled to the flash tank, which is coupled to the refrigeration cases. The refrigeration cases are coupled to the compressors, which are coupled to the gas cooler. An expansion valve between the gas cooler and the heat exchanger may cool the refrigerant flowing to the heat exchanger. A high pressure vapor compressor between the heat exchanger and the gas cooler may compress the refrigerant flowing from the heat exchanger to the gas cooler.

Abstract: A method for controlling an air handler including a fan, a heater and/or a compressor, by installing an energy saving controller between a thermostat and the air handler, shutting down the compressor or heater for a first predetermined duration if the compressor or heater has run continuously for a second predetermined duration during the current cycle, while allowing the fan to run for a fan's first run time extension amount equal with the first predetermined duration.

Abstract: A refrigerant recovery system includes a direct current (DC) motor and digital display and controls enabling an automatic self-test mode to insure proper operation prior to starting to service an HVAC system and a maintenance assist mode to diagnose and suggest maintenance for optimum performance of the refrigerant recovery system.

Abstract: A refrigeration control method and a refrigerator. The refrigeration control method for a refrigerator comprises: acquiring the refrigeration state of a first evaporator and the refrigeration state of a second evaporator; when the first evaporator performs refrigeration, acquiring the temperature of a second compartment; when the temperature of the second compartment is greater than the starting temperature of the second compartment and the difference therebetween is less than a first preset threshold, acquiring the temperature of a first compartment and determining whether the temperature of the first compartment is less than a preset first reference temperature, the first reference temperature being calculated according to the starting temperature of the first compartment and a set adjustment temperature; and when the temperature of the first compartment is less than the first reference temperature, switching the refrigerator into a state where the second evaporator performs refrigeration.