Abstract: A refrigerator according to one embodiment of the present invention comprises: a main body; a first storage chamber and a second storage chamber provided in the main body so that the front surfaces thereof are opened; an evaporator which is disposed inside the main body and which generates cold air; a first duct for supplying the cold air to the first storage chamber; a second duct for supplying the cold air to the second storage chamber; and a connecting duct for connecting the first duct and the second duct so as to allow the cold air generated by the evaporator to flow to the second duct, wherein the second duct includes a connecting port connected to the connecting duct, a discharge port through which the cold air is discharged, a discharge path for connecting the connecting port and the discharge port, and a connecting path for connecting the inside of the second storage chamber and the discharge path, the discharge path includes a minimum region in which the cross sectional area thereof in a vertical di

Abstract: An evaporator includes: a housing having a plurality of surfaces including a front surface and a back surface, at least one of the front and back surfaces having the largest area among the plurality of surfaces; and a heat-absorbing element disposed on at least one of the front and back surfaces and thermally connected to a heat source. The housing includes: at least one working fluid inlet located in a surface of the housing, the surface being other than a top surface of the housing; and at least one pair of working fluid outlets located respectively in opposite longitudinal end portions of the top surface.

Abstract: The vapor chamber includes a container having a hollow cavity and formed of one plate-shaped member and another plate-shaped member facing the one plate-shaped member that are layered on each other, a working fluid enclosed in the cavity, and a wick structure provided in the cavity. The wick structure includes a first wick part extending from a heat receiving part to a heat discharge part and having a first wick member using a linear member, and a second wick part provided to the heat receiving part and having a second wick member using a linear member. An average diameter the linear member of the second wick member is smaller than an average diameter of the linear member of the first wick member or an aperture dimension of the second wick member is smaller than an aperture dimension of the first wick member.

Abstract: An electric device (1) comprises a portion generating heat and a portion for dissipating said generated heat by heat exchange with a fluid, wherein said heat dissipating portion comprises means for generating a turbulent flow in the fluid.

Abstract: A construction element of a null-energy system includes a body on which the construction element can further include a porous material compartment with porous material to store water and evaporate the stored water outwards from the porous material through a holding layer on the opposite side of the porous material compartment to the body. The null-energy system uses a construction element of null-energy system as embodied therein.

Abstract: A work vehicle includes a cabin to cover an operator's seat on a traveling body. A cabin frame that constitutes a framework of the cabin includes a pair of left and right front pillars, a pair of left and right rear pillars, a front beam, a rear beam, and side beams. The front beam couples upper end portions of the front pillars to each other. The rear beam couples upper end portions of the rear pillars to each other. Each of the side beams couples to each other upper end portions of each of the front pillars and each of the rear pillars that stand at a front and rear. The rear beam is formed to have a U-shaped cross-section by presswork of a metal plate material.

Abstract: A proximity air conditioner is capable of performing energy-saving and efficient air-conditioning. A proximity air-conditioning unit for vehicles includes: a housing; a temperature adjustment unit including a temperature adjuster and a blower; and ducts, wherein upper ends of blowout ports of ducts are located above seat surfaces of seats, end portions in a long-side direction of the blowout ports are located on a front side with respect to other end portions thereof in a front-back direction of the seats, and the temperature adjustment unit is disposed between both end portions in the long-side direction of each of the blowout ports.

Abstract: Sweating-boosted air cooled heat-pipe condensers employing a nanowick micro fin structure to form a sweating boosted heat dissipation system, wherein the nanowicks may be layered.

Abstract: An evaporator device is provided, including a chamber including an inlet, an outlet, and a surface, the inlet being configured to direct a liquid coolant into the chamber and the outlet is configured to direct a vapor coolant away from the chamber, and the surface is in thermal communication with the liquid coolant or the vapor coolant, and a porous unit disposed adjacent to the surface, the porous unit being configured to (i) absorb the liquid coolant, (ii) bring the liquid coolant into thermal communication with the surface, (iii) subject the liquid coolant to a phase transition to a vapor coolant, and (iv) direct said vapor coolant away from the surface, wherein the surface and the porous unit are of different materials, and the porous unit is thermally insulating.

Abstract: A heat exchanger for cooling electrical elements of a vehicle includes a pair of coolers disposed over and under an electrical element module, respectively, and each having a plurality of channels longitudinally formed to pass cooling fluid; pipe couplers respectively coupled to first ends of the pair of coolers to pass cooling fluid, having protrusions on first surfaces facing each other, respectively, and connected with pipes on second surfaces; bellows couplers respectively coupled to second ends of the pair of coolers to pass cooling fluid and having protrusions on first surfaces facing each other; and a bellows having top and bottom openings fitted on the protrusions, and being able to contract. The bellows couplers have grooves formed around the protrusions in a shape corresponding to the bellows, and widths of the grooves are larger than a width of the bellows.

Abstract: Cooling sub-systems and methods of manufacturing cooling sub-systems are provided. For example, a cooling sub-system comprises a heat exchanger and a manifold that comprises a first sensor seat and a first valve seat, which are in fluid communication with a flow of a working fluid through the heat exchanger and the manifold. The heat exchanger and manifold are integrally formed as a single unit. In some embodiments, the manifold further comprises a second sensor seat, a second valve seat, and a plurality of internal passageways, which fluidly connects the first and second sensor seats and the first and second valve seats a working fluid inlet and a working fluid outlet for an ingress of working fluid into and out of the manifold. The cooling sub-system may be manufactured by one or more additive manufacturing methods.

Abstract: A valve device 1 includes a rotational shaft 2, and a valve body 4 internally forming a space 10 and rotatable about the rotational shaft 2, the valve body 4 having an outer circumferential surface 28 where a first communication hole 36 and a bottomed groove 38 are formed, the first communication hole 36 communicating with the space 10, the bottomed groove 38 extending from the first communication hole 36 toward one side in a rotational direction of the rotational shaft 2, and the groove 38 including a first section 40 in which at least one of a depth D of the groove 38 and a width W of the groove 38 increases toward the first communication hole 36.

Abstract: A heating, ventilation, and/or air conditioning (HVAC) system includes an enclosure that is divided by a partition extending between a first panel and a second panel of the enclosure such that the partition defines an outdoor air flow path and a return air flow path through the enclosure. The partition includes an opening extending between the outdoor airflow path and the return airflow path. The HVAC system also includes an energy recovery wheel that translatably extends through the opening and is positioned within the outdoor air flow path and the return air flow path. The energy recovery wheel is disposed within the enclosure at an oblique angle relative to the outdoor air flow path and the return air flow path.

Abstract: An electronic device is disclosed. The electronic device of the present invention comprises a communication unit and a processor for receiving information on a refrigerator from the refrigerator through the communication unit, dividing an operation section of the refrigerator into an event section and a normal section on the basis of the received information, and determining whether the refrigerator is abnormal on the basis of a state of the refrigerator in the normal section or the event section among the received information. The event section includes a section from a time point when a door of the refrigerator is opened to a time point when the temperature of the refrigerator reaches a predetermined temperature after the door is closed, and the normal section includes a section from a time point when the temperature of the refrigerator reaches the predetermined temperature to a time point before the door is opened.

Abstract: A temperature adjustment device includes: a pair of flow path plates, each of the pair of flow path plates including a flow path groove provided on a front surface of the each of the pair of flow path plates and at least a part of the front surface; a spacer member that includes a support surface projecting from the front surface, and connects the pair of flow path plates such that a back surface of one of the pair of flow path plates and a back surface of the other of the pair of flow path plate face each other; and a heat transfer plate that faces the flow path groove, and is supported by the support surface.

Abstract: A refrigeration cycle device according to the present disclosure includes: a refrigerant circuit including a compressor, a heat-source-side heat exchanger, a first expansion device, and a load-side heat exchanger, refrigerant cycling through the compressor, the heat-source-side heat exchanger, the first expansion device, and the load-side heat exchanger; a plurality of controllers configured to control the refrigerant circuit; a bypass pipe branching from a high pressure pipe on a discharge side of the compressor and connected to a low pressure pipe on a suction side of the compressor; a second expansion device provided to the bypass pipe, and configured to adjust a flow rate of the refrigerant flowing through the bypass pipe; and a plurality of refrigerant coolers provided to the bypass pipe, and configured to cool the plurality of controllers by using the refrigerant the flow rate of which is adjusted by the second expansion device, each of the plurality of refrigerant coolers including a refrigerant coolin

Abstract: A heat exchanger for vehicle arranged to allow an internal circulation of at least one fluid, comprising at least a heat exchanger bundle and at least a duct (10) at least partially outside the heat exchanger bundle, the duct (10) penetrating into the heat exchanger bundle by a hole arranged in a terminal plate (8) of the heat exchanger bundle, the duct (10) comprising at least a collar (42) lining the hole, characterized in that the heat exchanger comprises a reinforcing mean (20) in touch with the collar (42) of the duct (10) and with the terminal plate (8) of the heat exchanger bundle.

Abstract: A heat sink includes: a container having a cavity inside and a first surface and a second surface opposite the first surface; a working fluid encapsulated in the cavity; and a steam flow path in the cavity where the working fluid in a gas phase flows, the first surface having a flat part and a protruding part projecting from the flat part in an external direction, causing the container to have a flat portion and a protruding portion projecting from the flat portion in the external direction, an inner space of the protruding portion of the container being in communication with an inner space of the flat portion, causing the cavity to be formed, and a first heat radiating fin being provided on an exterior of the flat part of the first surface and a second heat radiating fin being provided on an exterior of the second surface.

Abstract: A heat dissipation device includes a first casing and a second casing coupled to the first casing. The second casing includes a body having an inner surface and an outer surface opposite the inner surface, and a first portion and a second portion, each of the first and second portions having a different cross-sectional area. The heat dissipation device further includes a plurality of columns on the inner surface, and a first wick structure disposed on the inner surface and in the first portion and the second portion.

Abstract: A vapor chamber in which an enclosed space is formed, and a working fluid is sealed in this space, the enclosed space including: a plurality of condensate flow paths through which a fluid that is the working fluid in a condensing state flows; and vapor flow paths through which a vapor that is the working fluid in a vaporizing state flows, wherein each of projecting parts with which each of the vapor flow paths is provided has a projecting amount varying in an extending direction of the vapor flow paths; a pitch for opening parts that allow the vapor flow paths and the condensate flow paths to communicate varies in the extending direction of the vapor flow paths; or wall parts that separate the flow paths each have a given relationship with a transverse cross section of a given flow path.