Abstract: A water heater can include a baffle and a slab heat exchanger with at least two rows of heat exchanger tubes, each row comprising a plurality of heat exchanger tubes. At least one of the heat exchanger tubes comprises a tube and a plurality of fins on the exterior of the tube circumscribing the tube, wherein the outer edge of each fin of the plurality of fins is bent at least at the same three areas of each fin such that the bends form at least three flat or concave areas running along the length of the heat exchanger tube.

Abstract: A heat emitting radiator for heating a space is provided that includes a radiator panel with tubing forming a fluid circuit or loop, wherein the loop includes at least one opening for inserting a heating element that can heat a fluid in the fluid circuit. The radiator may also include a heat absorbing material, such as stone, in thermal contact with the radiator panel. The radiator can be selectively de-activated when a certain temperature has been achieved in the space or in the fluid, allowing heat absorbed by a heat absorbing material positioned within the radiator to then be radiated into the space. The radiator can then be re-activated when a selected low temperature has been reached. The heating element may be a DC electrical heating element configured to be connected to an AC power source.

Abstract: A finned heat exchanger tube, including a tube, a plurality of fins, and a plurality of outer casings. The tube includes an elongated hollow body having a wall. The plurality of fins is disposed on the wall of the tube along the longitudinal axis of the tube; the plurality of fins each includes a plurality of hollow protrusions, and corresponding hollow protrusions of the plurality of fins form a plurality of microchannels parallel to the longitudinal axis of the tube. The plurality of outer casings encircles the plurality of fins, respectively.

Abstract: A heat exchanger and a method for additively manufacturing the heat exchanger are provided. The heat exchanger includes a plurality of fluid passageways that are formed by additive manufacturing methods which enable the formation of fluid passageways that are smaller in size, that have thinner walls, and that have complex and intricate heat exchanger features that were not possible using prior manufacturing methods. For example, the fluid passageways may be curvilinear and may include heat exchanging fins that are less than 0.01 inches thick and formed at a fin density of more than four heat exchanging fins per centimeter. In addition, the heat exchanging fins may be angled with respect to the walls of the fluid passageways and adjacent fins may be offset relative to each other.

Abstract: Disclosed is an EGR cooler. The EGR cooler includes: a laminated tube core formed by laminating a plurality of gas channels side by side, wherein a fin structure for improving heat transfer is inserted into the gas channels and opposite ends of the gas channels are open; a body shell including a body part, in which the laminated tube core is accommodated, and a pair of end tank parts integrally provided at opposite ends of the body part; coolant pipes connected to the body shell so as to supply coolant to a periphery of the laminated tube core and to discharge the coolant to an outside; and a pair of flanges respectively fittingly coupled to the pair of end tank parts.

Abstract: A light-emitting diode (LED) light fixture with a channel-type heat dissipation system is provided. The LED light fixture includes a plurality of light-emitting devices including LEDs, a heat dissipation unit connected with the plurality of light-emitting devices and having the plurality of light-emitting devices mounted thereon, a casing accommodating the heat dissipation unit and the light emitting devices, a cover connected with the casing, disposed above the plurality of light-emitting devices, and that is light-transmissive, and a ventilation channel through which ambient air passes. The casing has one open surface. The cover is connected to cover the open surface. The heat dissipation unit has an upper surface exposed through the open surface and a lower surface. The plurality of light-emitting devices are connected to the upper surface of the heat dissipation unit and exposed through the open surface.

Abstract: An apparatus for heating air comprising an elongate body adapted to receive, or integrally formed with, one or more electrical heating elements in thermal contact therewith, said body comprising a plurality of heat exchange fins defining a plurality of axially extending flow passages therebetween for heating air flowing therethrough.

Abstract: The present invention relates to a heat-dissipating device and a method for manufacturing the same. The heat-dissipating device includes a base and a first heat-dissipating fin. The outer periphery of the base has a trough. The first heat-dissipating fin has a first heat-dissipating portion, a first end and a second end. The first end and the second end are disposed in the trough. By a machining process, both ends of the first heat-dissipating fin are pressed into the trough of the base at a high speed, so that the base can be combined with the first heat-dissipating fin rapidly. In this way, the manufacture cost is reduced and the heat-dissipating efficiency is increased.

Abstract: A liquid-cooled-type cooling device includes a casing having a cooling-liquid inlet and a cooling-liquid outlet. A fin for forming flow channels is disposed within the casing between the inlet and the outlet. A portion of the interior of the casing located rearward of the fin is an inlet header section, and a portion of the interior of the casing located frontward of the fin is an outlet header section. A rear side surface within the inlet header section is skewed toward the fin in a direction from the right side toward the left side. A positioning vertical surface extending straight along the left-right direction and positioning a rear end portion of the fin is provided on a lower portion of a left end portion of the rear side surface within the inlet header section. The rear end portion of the fin is in contact with the positioning vertical surface.

Abstract: In an evaporator that constitutes part of a vehicular air conditioning apparatus, first fins having louvers therein are arranged between first and second tubes. Together therewith, a second fin, which does not have any louvers therein, is provided at a boundary portion between a first cooling section, which faces toward a first front passage through which air from a first blower unit flows, and a second cooling section, which faces toward a first rear passage through which air from a second blower unit flows. In addition, air is supplied to the interior of a casing from the first blower unit and is cooled by the first cooling section, which is partitioned by the second fin, whereas air supplied from the second blower unit passes through the second cooling section, which is partitioned from the first cooling section by the second fin.

Abstract: A method for manufacturing a plate-type heat exchanger in which a heat medium is sealed in a hollow part of an airtight structure formed in the interior of a plate-like container, and the heat medium is moved by capillary force from a condensing part to an evaporating part in the hollow part along heat-medium-guiding grooves formed in the container's inside surface portions that face the hollow part; wherein a plastic workable metal plate of specific thermal conductivity is prepared; a carving tool is used to repeatedly carve out a surface portion of the metal plate at specific intervals along the surface portion, forming a plurality of plate-like fins; and a plurality of grooves formed between these fins is used as heat-medium-guiding grooves.

Abstract: The present invention is to provide a heat-dissipating device comprising a sheet formed thereon with a plurality of first parts and a plurality of second parts, wherein any one of said second part is disposed between any two of said first parts, and the junction therebetween is bent with an angle enabling the ends of two adjacent first parts distal to the second part to be connected with each other. As a result, the second parts form corresponding parallel plates respectively on each side of a heat-dissipating device for being placed on a heat-source to dissipate heat transmitted therefrom, and the first parts act as the supporting plates for supporting the parallel plates.

Abstract: An oil-filled pole-mounted distribution transformer comprises a tank housing a transformer core-coil assembly immersed in cooling oil. The tank is made of a corrosion-proof composite material and a radiator is provided for cooling the oil. The radiator is external to the tank and has a hot oil inlet and a cool oil outlet located at different levels into the tank for causing a natural circulation of oil through the radiator by thermal siphoning.

Abstract: A heat sink for free convection cooling in horizontal applications is provided. Specifically, the heat sink includes a plurality of spaced apart cooling fins, which are supported by an angled base. The cooling fins are transversely attached to the base and extend in a substantially vertical direction. In addition, the cooling fins extend beyond an outer edge of the base so that air can flow horizontally beneath the base and then vertically through the spaced apart cooling fins.

Abstract: A heat sink for cooling electrical or electronic devices comprises a spreader plate having a top surface and having a bottom surface for attaching to the electronic device. A folded fin formed from a strip of heat conducting material comprising alternating planar portions and curved portions has one edge abutted to the top surface such that the curved portions extend upwardly from the top surface substantially at a right angle.

Abstract: An equipment cabinet for an electrical and electronic system includes a functional area closed in dustproof and watertight manner and at least one door closing in dustproof and watertight manner. A multishell structure is provided round the functional area and comprises baffle plates, a functional area wall and an outer jacket. Between the baffle plates and functional area wall is formed an internal, channel-like space and between the functional area wall and outer jacket an external, channel-like space. The two channel-like spaces can be supplied by controllable volume flows independently of one another in load-dependent manner.

Abstract: An oil radiator, particularly for heating rooms, includes a main body defined by a plurality of mutually associated radiating elements in which a diathermic oil heated by an electric resistor circulates. Each radiating element includes a pair of mating shaped plate-like elements joined together by welding to form an oil receiving space therebetween and each having lateral surfaces provided with a series of folds which mate with the corresponding folds of the other plate-like element to define a channel-shaped air flow compartment capable of lowering the surface temperature of the oil radiator below that of the oil contained in the radiator, thus reducing burn injuries caused by inadvertent contact with the radiator. The folds also cooperate to provide the radiator with planar lateral outer surfaces to minimize impact injuries caused by collision with the radiator.

Abstract: A bulkhead is formed of a sheet of material which is preformed so as to have alternatingly opposed S-shaped creases at spaced intervals which define pairs of mutually facing recessed grooves between adjacent creases. Resilient surface area enlarging members are each provided with a pair of lips formed on the opposite edges thereof. Each pair of lips are received within a pair of mutually facing recessed grooves of the bulkhead. The surface area enlarging members can be snapped into or out of operative position with respect to the bulkhead to adjust the surface area of the device.

Abstract: Convector with finned tubes [1, 2, 3, 4] for conducting a first heating medium and an upright channel [42] for a second medium around at least one of the finned tubes [1]. A lower finned tube [1], a side finned tube [2] and an upper finned tube [3] are rigidly connected in series for the first medium so that they constitute a self-supporting structure. The side finned tube [2] constitutes a first side bording element for the upright channel [42], the second side bording element is either a further side finned tube [4] rigidly connected in parallel or a stiffening side plate [60].

Abstract: A heat baffle plate of aluminum or another good heat-conducting metal is secured on a steel member. Since aluminum cannot be welded to steel, connections are utilized which result in a good heat-conducting connection but without direct welding. For example, a steel plate can be placed over a portion of the heat baffle plate and then be welded through openings in the aluminum plate to the steel member. The baffle plate can alternatively be supported by a form-locking engagement with a holding plate of steel which is welded to the steel member. The better heat conductivity of the aluminum baffle plate causes the heat emission or heat absorption to be substantially increased for a given structural arrangement in comparison to a heat baffle plate of steel.

Abstract: A heat ventilator for insertion in a flue pipe above stoves and the like, wherein a double walled connector spaces the ventilator from the stove and establishes an annulus heating air delivered into a housing by convection, there being a smooth-walled flue tube extending longitudinally through the housing establishing a passage occupied by a stack of spaced parallel plates transversely disposed and engaged over said flue tube to absorb and dissipate heat into useful air transported by a motor fan through a downwardly open plenum receiving useful air from around said stove and discharging the same over said plates and into a living area.

Abstract: This panel-type radiator for extracting heat from liquid flowing therethrough comprises a panel through which the liquid flows in a downward direction. The panel is made from two dished metal sheets having aligned vertically-extending embossments welded together along a vertically-extending zone and providing spaced vertically-extending flow channels on opposite sides of the vertically extending zone. The portions of the sheets defining the walls of said channels are provided with vertically-spaced embossments arranged on each sheet in a generally herringbone pattern, with the individual embossments extending transversely of the vertically-extending zone via a path that slopes upwardly as the vertically-extending zone is approached.

Abstract: A space heater comprises a heater plate made of a metal sheet provided with vertical corrugations, the corrugations in the bottom portion of the sheet being compressed to a flat strip of a thickness not less than three times the thickness of the sheet. The corrugations are so dimensioned that the unfolded length of the metal sheet is three times the length of the corrugated length of the heater body. One, two or more electric flat heating elements are laid along the compressed bottom edge and pressed against it by a U-shaped retaining channel. When serving as a room air-heater, the heater plate is covered on one or both sides by protective panels to prevent people from touching the hot plate and to increase convective air current flow.

Abstract: A heat exchanger panel formed from two superimposed plates, at least one of which is folded on itself longitudinally to create a series of outwardly extending open-looped fins, serving as multiple ducts to provide free passage and direct prime heat-exchanging fluid contact along the entire inner wall surface of the fins.