Abstract: A vehicular adsorption type air conditioning device including: a heater core and an interior heat exchanger that perform heat exchange between air inside a vehicle cabin and a heating medium; an exterior heat exchanger that performs heat exchange between air outside the vehicle cabin and the heating medium; a heating flow path section that circulates the heating medium between a high temperature heat source of the vehicle and the heater core; a plurality of adsorption vessels each including an adsorption section and an evaporation-condensation section, with an adsorbent and a refrigerant sealed within the adsorption vessels; and a flow path system; the flow path system being capable of switching between a cooling mode, a first heating mode, and a second heating mode.

Abstract: Systems and methods described herein are directed to rotary heat exchangers configured to transfer heat to a heat transfer medium flowing in substantially axial direction within the heat exchangers. Exemplary heat exchangers include a heat conducting structure which is configured to be in thermal contact with a thermal load or a thermal sink, and a heat transfer structure rotatably coupled to the heat conducting structure to form a gap region between the heat conducting structure and the heat transfer structure, the heat transfer structure being configured to rotate during operation of the device and flow a heat transfer medium in a substantially axial direction through the heat transfer structure. In example devices heat may be transferred across the gap region from a heated axial flow of the heat transfer medium to a cool stationary heat conducting structure, or from a heated stationary conducting structure to a cool axial flow of the heat transfer medium.

Abstract: Embodiments of the present invention provide a refrigerator comprising an ice machine, the refrigerator comprising: a main body, a door, a dispenser disposed on a front surface of the door, a compressor, a condenser and an expansion valve on the door, an ice tray disposed in the ice-making compartment, a refrigerant pipe configured to connect the compressor, the condenser, and the expansion valve, a heater disposed at a peripheral portion of the ice tray, a drain duct disposed under the ice tray, and a defrost water discharge pipe configured to couple the drain duct and the excess water tray.

Abstract: A heat pipe includes a reservoir of liquid that is connected to a horizontal portion of the heat pipe via a capillary connection. The heat pipe includes a temperature sensor in proximity to a heat interface in the horizontal portion and a controller that controls a heater for the reservoir. As power into the heat pipe increases, the controller turns on the heater, causing the temperature of the liquid in the reservoir to rise. Liquid then passes from the reservoir through the capillary connection into the horizontal portion, thereby dynamically increasing the amount of liquid in the heat pipe, which increases performance of the heat pipe at higher power levels. When the heater is off, as the heat pipe cools, the liquid condenses and flows back through the capillary connection into the reservoir. The result is a heat pipe that provides demand-based charging of the liquid based on power level.

Abstract: A corrugated fin, in particular for a heat exchanger, having a substantially corrugated design, having a plurality of fin surfaces, wherein adjoining fin surfaces are connected to one another by means of a fin arch in such a way that a medium can flow through an intermediate space between adjoining fin surfaces, wherein the fin surfaces are arranged at an angle with respect to one another perpendicularly with respect to a throughflow direction for the medium, wherein the fin surface has at least one bulge which protrudes out of the plane of the fin surface, wherein the extent of the bulge in a direction perpendicularly with respect to the air throughflow direction is smaller than the extent of the fin surface in said direction.

Abstract: A heat dissipation device includes a housing and a heat pipe. The heat pipe has an open end, which is inserted into an opening on a top side of the housing, such that a heat pipe chamber of the heat pipe is communicated with a housing chamber of the housing and an extended portion extended from the open end of the heat pipe is pressed against a bottom side of the housing, as well as a heat pipe wick structure of the heat pipe is connected to a housing wick structure of the housing, so as to increase heat transfer effect.

Abstract: An indoor unit according to the present invention includes a securing plate provided at an upper edge of a sidewall of a drain pan that collects drain water generated from an indoor heat exchanger, and an antimicrobial-agent-containing case that contains an antimicrobial agent and includes a case frame positioned in an area where the drain water is collected, a case-attaching portion conforming to the securing plate and being detachably attached to the securing plate, and an arm connecting the case frame and the case-attaching portion. The antimicrobial-agent-containing case is attached to the securing plate from an opening of an air inlet from which air is taken into a body.

Abstract: A heat exchanger includes a first fluid laminate defining a first fluid cavity that is in fluid communication with and downstream from a first inlet such that at least some of the first fluid flows into the first fluid cavity. The heat exchanger includes a second fluid laminate positioned adjacent to and in contact with the first fluid laminate. The first fluid laminate and the second fluid laminate define a portion of a cylinder. The second fluid laminate defines a second fluid cavity that is in fluid communication with and downstream from a second inlet such that at least some of the second fluid flows into the second fluid cavity, such that heat may transfer between the first fluid and the second fluid via the first fluid laminate and the second fluid laminate.

Abstract: Refrigerant charging systems and methods of use are described herein. A refrigerant charging system may include a conduit, a valve releasably connectable to the outlet portion and coupled to a first end of the conduit; and a disconnect coupler fitting connected to a second end of the conduit. The disconnect coupler fitting may include a control structure positioned in a hollow body that, during use, allows refrigerant flow to the refrigerant circuit. The control structure may include one or more openings that allow controlled leakage of fluid from the refrigerant charging assembly when the refrigerant charging assembly is disconnected from at least the refrigerant service unit.

Abstract: A pipe mounting structure of an embodiment allows a pipe, which is connected to an outlet side of an evaporator, to be mounted on a second passage of an expansion valve in such a manner that the pipe is inserted into an inlet port, and allows a pipe, which is connected to an inlet side of a compressor, to be mounted on the second passage in such a manner that the pipe is inserted into an outlet port. These pipes are mounted so that the pipes face each other with a shaft therebetween. The pipe mounting structure includes a natural vibration suppressing structure configured to prevent or suppress natural vibration of a gas column having antinodes of a standing wave at an open end of one of the pipes and an open end of the other pipe.

Abstract: A controller performs medium pressure control that controls the opening degree of a second expansion device based on a deviation between a target value of medium pressure, and a detection result of a medium pressure detector or a predicted value. The controller controls the opening degree of a third expansion device based on a target value of a discharge refrigerant temperature of a compressor or a target value related to the discharge refrigerant temperature, and a detection result of a discharge refrigerant temperature detector or a value related to the discharge refrigerant temperature computed using a detected detection result, and regulates a flow rate of refrigerant to supply to a suction side of the compressor via an injection pipe.

Abstract: A heat dissipating device includes a first copper plate, a second copper plate, a plurality of first heat pipes, a plurality of second heat pipes, and a heat dissipating component. Evaporating sections of the first heat pipes and the second heat pipes are clamped between and thermally connected to the first copper plate and the second copper plate. The second heat pipe, the evaporating section of the first heat pipes, the first copper plate, and the second copper plate are positioned at a bottom surface of the heat dissipating component. The second copper plate is thermally connected to the bottom surface of the heat dissipating component. Condensing sections of the first heat pipes is thermally connected to a top surface of heat dissipating component.

Abstract: An air-conditioning apparatus includes: a first bypass pipe connected to an inlet-side passage of an accumulator through a second expansion device, a second passage of a subcooling heat exchanger for exchanging heat between refrigerant flowing through the second passage of the subcooling heat exchanger and refrigerant flowing through a first passage of the subcooling heat exchanger, and a first opening and closing device; a second bypass pipe branched from the first bypass pipe between the subcooling heat exchanger and the first opening and closing device and connected to an injection port of a compressor through a second opening and closing device; and a third bypass pipe branched from a refrigerant pipe between a heat source-side heat exchanger and a use-side heat exchanger and connected to a refrigerant pipe between an inlet side of the compressor and an outlet side of the accumulator through a third expansion device.

Abstract: This disclosure is directed to an electronic thermostat for a heating, ventilation, and air conditioning (HVAC) system that includes an electronic level feature and leveling register that allow the thermostat housing to be rotated about a mounting wall plate to place the thermostat housing in a leveled position. In one aspect, the thermostat includes at least one accelerometer. Other systems and methods are disclosed.

Abstract: A spiral louver shaped condenser includes fins and a refrigeration pipe. The fins are spirally wound about the refrigeration pipe and integrally formed by stamping a strip-shaped sheet material, at least including first heat-absorbing and heat-radiating bodies and second heat-absorbing and heat-radiating bodies. Broken lines are arranged between adjacent heat-absorbing and heat-radiating bodies, and each heat-absorbing and heat-radiating body forms a wavy structure. Relative wave crests and wave troughs are formed at each broken line between the adjacent heat-absorbing and heat-radiating bodies, wherein the crests and troughs form a honeycomb structure together. The wavy edges of the first heat-absorbing and heat-radiating bodies make contact with the outer wall of the refrigeration pipe at equal screw pitches.

Abstract: A heat-pump circuit may include an indoor heat exchanger, an outdoor heat exchanger, a compressor adapted to circulate a working fluid between the indoor and outdoor heat exchangers, and an expansion device disposed between the indoor and outdoor heat exchangers. A monitor for the heat-pump system may include a return-air temperature sensor, a supply-air temperature sensor, and a processor. The return-air temperature sensor may be adapted to measure a first air temperature of air upstream of the indoor heat exchanger. The supply-air temperature sensor may be adapted to measure a second air temperature of air downstream of the indoor heat exchanger. The processor may be in communication with the return-air temperature sensor and the supply-air temperature sensor. The processor may be programmed to determine a working-fluid-charge condition of the heat-pump system based on the first and second air temperatures.

Abstract: There is disclosed a vehicle air conditioner in which in a dehumidifying and heating mode, a heating capability by a radiator can be acquired while avoiding frost formation to a heat absorber. A dehumidifying and heating mode is executed in which a refrigerant discharged from a compressor 2 radiates heat in a radiator 4, the refrigerant by which heat has been radiated is decompressed, and then heat is absorbed in a heat absorber 9 and an outdoor heat exchanger 7 or only in the heat absorber 9 to heating a vehicle interior while dehumidifying the vehicle interior. The vehicle air conditioner includes an injection circuit 40 which distributes a part of the refrigerant flowing out from the radiator 4 to return the part to the compressor 2.

Abstract: Liquid separator (2), designed as a U-shaped pipe (5) and arranged essentially horizontally, for a plate heat exchanger evaporator (1) system for separation of liquid droplets from vapor transported from the evaporator to the separator.

Abstract: CPU of an air conditioner reads out a heat exchanger outlet temperature stored in time series into a memory part to check whether the current heat exchanger outlet temperature is a second threshold temperature or lower or not, whether the drop rate of the heat exchanger outlet temperature calculated using the latest heat exchanger outlet temperature and the second-to-the-latest heat exchanger outlet temperature is a specific drop rate or higher or not, and whether the number of indoor units in operation of indoor units has increased or not during calculation of the drop rate of the heat exchanger outlet temperature. And, when the second frost forming condition is satisfied, CPU switches a four-way valve to set a refrigerant circuit into a cooling cycle to thereby execute a defrosting operation preparation processing and, on completing the defrosting operation preparation processing, resumes a compressor to start a defrosting operation.

Abstract: An air agitator assembly for use with a heat-emitting object having a contour, the air agitator assembly including a perforated flexible structure having a thermally absorbing first side confronting and spaced from a portion of the heat-emitting object to define an air space there between and a second side opposite the first side and where at least a portion of the first side of the perforated flexible structure has a contour that matches a contour of a corresponding portion of the heat-emitting object.