Abstract: This discloses apparatuses for industrial or commercial cooling (or any other cooling) using staged cooling towers to evaporatively reach temperatures below the wet bulb temperature of the ambient air. Methods for using such apparatuses are disclosed as well.

Abstract: The described embodiments relate generally to optimizing airflow in a computer system. By modifying the external surface of centrifugal cooling fan enclosures the pressure drop associated with airflow moving around the enclosures can be reduced. This is generally accomplished by rounding off hard edges from the outside of the cooling fan enclosure as well as forming cover surfaces rather than simply using flat cover surfaces. In some cases this can also involve modifying the shape of the fan inlet, or even contouring the shape of the cooling fan blades to allow air to flow more easily through the computer enclosure.

Abstract: A climate controlled seat, bed or other assembly configured to receive a person includes a blower and two or more thermoelectric devices or other conditioning fluid modules. According to one embodiment of an operational scheme, a control system for the seat or bed is configured to continuously discharge air from the blower through the thermoelectric devices. In one arrangement, the thermoelectric devices are sequenced between an activated and a deactivated position. Consequently, the desired cooling and/or cooling effect can be maintained while reducing energy consumption of the climate control system.

Abstract: Liquid cooling is selectively enabled at a portable information handling system to provide enhanced processing capabilities when needed or desired. A liquid cooling cold plate conducts thermal energy from a processing component heat pipe or heat sink to a liquid pumped from external to the information handling system housing. The pump operates with power provided from an AC/DC adapter of the information handling system or power provided from an interface with the information handling system, such as a USB port and cable. Alternatively, liquid cooling is included in a cradle to automatically engage with the information handling system is coupled to the cradle.

Abstract: A rackable server system includes a rack, a fan assembly mounted to a rear of the rack, and a number of server units slidably mounted in the rack. The fan assembly includes a frame defining a number of air passages, a number of door plates mounted to the frame and correspondingly arranged in the passages, and a number of fans fixed to a rear of the frame. The air passages are correspondingly aligned with the fans. The server units are correspondingly aligned with the air passages and resist against the door plates to pivot the door plates, thereby uncovering the air passages.

Abstract: A thermal management system is provided which comprises (a) a synthetic jet actuator; and (b) a frame having at least one element therein which pressingly engages said synthetic jet actuator.

Abstract: A heat dissipation device includes a centrifugal fan and a fin assembly aside the centrifugal fan. The centrifugal fan includes a casing and an impeller received in the casing, the casing defines an air outlet at one side thereof. The fin assembly is located at the air outlet of the centrifugal fan. The fin assembly includes a plurality of fins parallel to and spaced from each other. Each of the fins includes a main body and an extending portion extending form the main body toward the air outlet of the centrifugal fan. Each extending portion includes a side edge facing the air outlet of the centrifugal fan, the side edge is arc shaped and inwardly concaved toward the main body.

Abstract: The present invention relates to a system for extracting heat from outside air. The system comprises a feed connecting to outside air, a heat exchanger connected to the feed and a discharge connecting to the heat exchanger and outside air, and a channel connecting the feed, the heat exchanger and the discharge. The system herein further comprises an impeller associated with the channel for providing a volume flow of outside air sufficient for the heat exchanger via the feed and along or through the heat exchanger. The system according the invention is distinguished from existing systems, which make use of noisy fans as impellers, in that the channel comprises an upright ascent pipe, an upright descent pipe and a connecting pipe between the ascent pipe and the descent pipe. The heat exchanger is connected here to the descent pipe. A sufficient airflow can thus be initiated/maintained for an effective operation of for instance the evaporator of or at a heat pump.

Abstract: Disclosed is a system for extracting heat from an effluent duct (2), in particular a wastewater collection device, comprising, in the zones of the inner duct wall located above the effluent, heat exchanger tubes (3) which are exposed to the atmosphere in the duct and through which a heat transfer fluid flows to recover some of the sensible heat and of the latent condensation heat from the steam generated by the effluent. A forced-convection device (9) is provided to generate a movement of air sweeping across the surface of the effluent (1) and increase the evaporation rate of the effluent.

Abstract: A thermal interposer for a heat-generating electronic component located on an adapter card of a computer includes a thermally conducting planar body. The thermally conducting planar body may be configured to be coupled to the adapter card such that a first surface of the planar body is in thermal contact with a surface of the electronic component. The thermal interposer may also include a cold plate assembly removably coupled to a second surface of the planar body opposite the first surface. The cold plate assembly may include an inlet adapted to receive a cooling liquid into the cold plate assembly and an outlet adapted to discharge the cooling liquid from the cold plate assembly.

Abstract: An electric apparatus includes a centrifugal fan that includes an impeller in a casing, and is configured to draw air when the impeller rotates in the casing, and to have a blowoff channel of the air from the impeller in the casing, which spreads in a rotating direction of the impeller, and a first cooled part and a second cooled part that has a necessary cooling air capacity larger than that of the first cooled part, the first cooled part and the second cooled part being cooled by the air drawn by the centrifugal fan, wherein a drawing surface of the centrifugal fan has a first drawing area and a second drawing area that has a drawing speed higher than that of the first drawing area when the impeller rotates.

Abstract: A heat dissipation device includes a housing, a fan mounted within the housing, a fin assembly fixed to the housing and heat pipes attached on the fin assembly. The housing includes a panel and a sidewall extending upwardly from a periphery of the panel. The fin assembly includes first fins and second fins alternately arranged on the panel. The first fins and the second fins each include a plate, an upper flange and a lower flange extending from a top side and a bottom side of the plate, respectively. Each second fin defines a slot in a lateral side of the plate thereof adjacent to the fan. Every two adjacent first fin and second fin define a channel therebetween. Two adjacent channels communicate with each other at inlets thereof via the slot, and separated from each other at outlets thereof via a second fin.

Abstract: An electronic device includes a casing, a fan, and a heat sink. The casing defines a plurality of through holes therein. The fan defines air outlet at one side thereof facing the through holes of the casing. The air outlet includes a first portion and a second portion. Air pressure in the first portion is larger than air pressure of the second portion. The heat sink includes a first fin set arranged on the first portion and a second fin set arranged on the second portion. A first passage is defined between each two neighboring first fins. A second passage is defined between each two neighboring second fins. A width of the second passage is less than that of the first passage.

Abstract: A heat dissipation device includes a fan and a heat sink located at the air outlet of the fan. The heat sink includes a first fin set arranged on a side portion of the air outlet, a second fin set arranged on a central portion of the air outlet and a third fin set. The first fin set includes a plurality of first fins with a first passage is defined between each two neighboring first fins. The second fin set includes a plurality of second fins with a second passage defined between each two neighboring second fins, a width of the second passage is less than that of the first passage. The third fin set includes a plurality of third fins. Each third fin is arranged between two neighboring first fins and divides an outer portion of the first passage away from the outlet of the fan into two third passages.

Abstract: A flow control device and a related cooled electronic system are provided. The electronic system comprises a first heat dissipation component and a second heat dissipation component. The flow control device controls an amount of an air flow to the first heat dissipation component and the second heat dissipation component. In one illustrative embodiment, the flow control device comprises: a memory metal component coupled to the first heat dissipation component and the second heat dissipation component and a movable component comprising a first end and a second end. The first end is coupled to a point between two ends of the memory metal component and the second end is movable with respect to the first end. In response to a temperature difference between the first heat dissipation component and the second heat dissipation component, the second end approaches the first heat dissipation component or the second heat dissipation component.

Abstract: The present invention, without utilizing external mechanical rotary kinetic energy or the power of an electric motor, directly utilizes the fluid passing through the heat exchanger having thermal energy fluid pipelines to drive one or more than one fluid actuation device, and through direct or non-contact type transmission means to respectively drive the fluid pump set installed at the side of heat exchanger having thermal energy fluid pipelines, and then to further drive the external fluid to pass through the heat exchanger, so as to improve the efficiency of the heat exchange of the heat exchanger.

Abstract: A server including a rack, at least one chassis, a plurality of electronic modules, and a cable module is provided. The rack has an opening. The chassis is movably disposed in the rack along a first axis, and moves in and out the rack through the opening. The electronic modules are vertically and detachably disposed in the chassis. A plurality of channels parallel to a second axis and each of the channels is disposed between two adjacent electronic modules, and the first axis is perpendicular to the second axis. The cable module is disposed at a side of the chassis. The cable module is connected to at least one of the electronic modules. When the chassis is moved out from the rack, the electronic module connected to the cable module is next to the opening of the rack.

Abstract: A piezoelectric fan includes a vibration plate one end of which in a length direction is supported in a fixed manner and the other end of which in the length direction is a free end; and piezoelectric elements, attached on at least one of front and back surfaces of the vibration plate. In an intermediate portion of the vibration plate in the length direction, a right-angle bent portion is provided, and a plurality of divided blades are defined by slits in an area of the vibration plate extending from the free end to a position located a predetermined distance from the bent portion toward the free end. The piezoelectric element is attached on the portion of the vibration plate between the fixed end and the bent portion. Hence, variations in resonant frequency among the blades are reduced and the blades are efficiently excited using a common piezoelectric element.

Abstract: A fan fixing device for fixing fan units includes two parallel first sidewalls, two parallel second sidewalls, and a number of fixing members. Each first sidewall defines a number of vent ports and includes a vertical plate, a lower plate, and an L-shaped engagement member. The lower plate and the engagement member are positioned at opposite sides of the vertical plate. The second sidewalls are connected between the first sidewalls. The second sidewalls and the first sidewalls cooperatively form a receiving room. The fixing members engage with between the engagement members of the first sidewalls, the fixing member is configured for securing the fan units to the two first sidewalls in the receiving room.

Abstract: An enclosure includes a bracket with a bottom wall, a circuit board mounted to the bottom wall but spaced from the bottom wall, an electronic element mounted to the circuit board, a fan arranged on the bottom wall and facing the space between the circuit board and the bottom wall, and a guiding member attached to the circuit board to block the space between the circuit board and the bottom wall.

Abstract: A heat sink fan of the present invention includes a heat sink and a fan. The heat sink includes a base having a center axis and a plurality of fins extending radially outwardly from an outer circumference of the base and disposed in a circumferential direction. The fan includes an impeller portion disposed adjacently to the heat sink in the direction along the center axis, the impeller portion rotating about the center axis, and a frame portion for covering and fixing the impeller portion, part of the frame portion being opposed to the heat sink. The frame portion has at least one protruding portion. The protruding portion enters into a space between the fins which are adjacent to each other.

Abstract: An electronic device is provided. The electronic device includes a mechanism, a circuit module and a fixing element. The circuit module is disposed inside the mechanism. The circuit module includes a circuit board and a fan. The circuit board has at least one edge and a fixing hole. The fan has a first lateral side and a second lateral side. The first lateral side has a first hook buckled on the edge. The second lateral side has at least one screwed board, wherein the screwed board has a screwed hole. The fixing element is screwed on the screwed hole and the fixing hole to screw the fan on the circuit board.

Abstract: An air guiding device is mounted on a main board. The air guiding device and the main board cooperatively form an air passage therebetween for allowing cooling air to pass therethrough. The air passage includes an inlet at a first end of the air guiding device, a first outlet at an opposite second end of the air guiding device, and a second outlet. The air guiding device includes a top wall, two sidewalls, and a shielding assembly. The top wall includes the second outlet therein at an intermediate portion thereof. The second outlet opens toward the second end. The sidewalls extend downwardly from opposite sides of the top wall. The shielding assembly is positioned on the top wall for regulating a size of the second outlet.

Abstract: The present invention relates to the methods and devices for using the ambient atmosphere to increase the energy efficiency of refrigerators and freezers. The invention generally provides energy-conserving chilling systems, devices, and methods, which involve a compartment in a case coupled to a fluid conduit and configured to be positioned within a building to allow passage of a fluid via the conduit from an exterior of the building to the case, thereby decreasing an interior temperature of air within the compartment.

Abstract: A heat sink assembly includes a heat sink, a first fan, and a second fan. The heat sink includes a first base contacting a first heat generating element, a first heat pipe connected to the first base, and a fin assembly. The first heat pipe is located in the fin assembly. The first fan defines a first input opening and a first output opening substantially perpendicular to the first input opening. The second fan defines a second input opening and a second output opening substantially parallel to the second input opening. The first and second input openings correspond to the fin assembly.

Abstract: A cooling system for an engine aftertreatment system at least partially located in an engine compartment including a pressurized air source and an air conduit. The pressurized air source is configured to generate a cooling airflow. The air conduit is connected to the pressurized air source. The air conduit is configured to provide the cooling airflow to the engine aftertreatment system.

Abstract: An air flow guiding structure includes a plurality of straight radiating fins being parallelly spaced to define an air flow passage between any two adjacent ones of the straight radiating fins; a plurality of first oblique sections extended from first ends of at least some of the straight radiating fins, such that a first air flow guiding passage communicating with the air flow passage is defined between any two adjacent ones of the first oblique sections; and a plurality of second oblique sections extended from opposite second ends of at least some of the straight radiating fins, such that a second air flow guiding passage communicating with the air flow passage is defined between any two adjacent ones of the second oblique sections. With these arrangements, air flows can be quickly guided into and out of the air flow passages to improve flow field and achieve best heat dissipation effect.

Abstract: A system and method for chassis cooling is provided. A preferred embodiment comprises an orthogonal backplane along with a hybrid cooling air flow. One air flow is routed horizontally through aligned and suitable openings on the backplane, vertically over components to be cooled, and horizontally out of the chassis. A second air flow is routed horizontally over components and through aligned and suitable openings on the backplane before it is routed horizontally out of the chassis.

Abstract: According to one aspect of the invention, an electronics package includes an enclosure and one or more thermal energy generating components disposed in the enclosure. A radial heat sink is disposed in the enclosure including a blower disposed in the radial heat sink and a plurality of fins extending from a periphery of the blower toward a perimeter of the radial heat sink. The plurality of fins define a plurality of channels having a plurality of channel exits at the perimeter of the radial heat sink. The radial heat sink configured to dissipate thermal energy from the one or more components which are arranged around the heat sink according to heat flux requirements of each component. An air inlet extends through the enclosure and is connected to the blower to direct air to the blower in a direction substantially perpendicular to the first longitudinal face and/or the second longitudinal face.

Abstract: A heat sink comprises a plurality of individual plates. Each of the plates comprises a heat-dissipating portion and a binding portion connecting with the heat-dissipating portion. The binding portions are stacked together on each other to form a heat-absorbing portion. At least some of the heat-dissipating portions are bent at angles relative to the respective binding portions. At least a hoop encloses the heat-absorbing portion. A method of manufacturing the heat sink is also disclosed.

Abstract: Embodiments of the invention provide an electric machine module. The module can include a housing that can define a machine cavity. The housing can include a coolant jacket that contains a first coolant. A coolant sump can be in fluid communication with the machine cavity and can contain a second coolant that is different than the first coolant. The coolant sump can be in thermal communication with the coolant jacket. An electric machine can be positioned within the machine cavity. The electric machine can include a stator assembly, a rotor assembly, and a shaft. The module can also include at least one coolant channel, at least one shaft channel, and at least one rotor channel.

Abstract: An air heat exchanging device is provided, which includes an upper flow divider, a heat exchanging core, and a lower flow divider. An indoor wind channel and an outdoor wind channel are disposed in the upper flow divider, the heat exchanging core, and the lower flow divider respectively, and an air inducing pipe communicating with indoor heat generating equipment is disposed at an air inlet of the indoor wind channel. An integrated heat-exchanging air-conditioning device including the air heat exchanging device is also provided, in which an air conditioning evaporator is disposed at one side of the indoor wind channel near the air inducing pipe.

Abstract: The present invention describes a construction machine with a drive unit and with a cooling system that comprises a fan. The fan is connected to the drive unit by means of a controllable viscous coupling, whereby the viscous coupling can be adjusted in such a way that a required fan rotational speed is set on the output side. The invention furthermore describes a method for the automatic fan rotational speed regulation for a cooling system in a construction machine.

Abstract: An air conditioning apparatus is provided with an air plenum in fluid communication with an air inlet and an air outlet. A fan moves air through the air plenum. An interchangeable air conditioning core is removably installed within the air plenum and interposed between the air inlet and air outlet such that air moving along an air pathway is forced to proceed through the interchangeable air conditioning core.

Abstract: A heat-dissipation fan comprises a hollow cylinder body, a fixing pillar, a stator, a fan wheel, a bearing and bearing plate. The fixing pillar comprises a free end and a fixing end fixed at the hollow cylinder body. The stator is installed at the hollow cylinder body being installed at the bearing plate. The fan wheel comprises a top plate, an outer ring wall, an inner ring wall and a penetration hole formed at the top plate. The inner ring wall surrounds the penetration hole, the hollow cylinder body and the stator are located between the outer ring wall and the inner ring wall, and the bearing is coupled to the inner ring wall. The free end of the fixing pillar is protruded to a top surface of the top plate, which results a supporting surface and the top surface being spaced apart by a first spacing.

Abstract: A cooling apparatus for server rack is disclosed, which is disposed above at least one server rack. The cooling apparatus for server rack includes a fan module disposed at a back end above the least one server rack, a heat exchanger module disposed at a front end above the least one server rack, and an air guide connecting the fan module and the heat exchanger module. A hot air exhausted from the back end of the least one server rack is extracted by the fan module and is sent to the heat exchanger module through the air guide, and the hot air is cooled by the heat exchanger module, and a cool air is exhausted from the front end of the least one server rack.

Abstract: A system and method for isolating equipment within a cabinet. The system comprising an internal fan disposed within an internal chamber and an external fan disposed outside the internal chamber. The internal fan and the external fan are driven by a corresponding motor disposed within the internal chamber, wherein each motor independently rotates the internal fan and the external fan.

Abstract: A heat dissipation device includes a heat sink, a plurality of fasteners extending through the heat sink, a fan holder mounted on the heat sink and a fan secured on the fan holder. The heat sink includes multiple claws to retain the fasteners therein. The fan holder includes a hoop surrounding the heat sink and a bracket supporting the fan. A plurality of sleeves are formed on the hoop and aligned with the claws of the heat sink, to thereby guide a tool to manipulate the fasteners to secure the heat sink to a printed circuit board.

Abstract: A reversible air flow fan system is described. A fan tray assembly is coupled with a chassis and a removable fan and bracket assembly that is oriented in a first direction. This removable fan and bracket assembly is configured to be removable from the fan tray assembly and being recoupled with the fan tray assembly in a second direction opposite the first direction. An air duct is coupled with and enables the exchange of air between the removable fan and bracket assembly and a first surface of the chassis. A sensor coupled with the fan tray assembly is configured for coupling with at least one bracket of the removable fan and bracket assembly when the removable fan and bracket assembly is oriented in the first direction.

Abstract: A server cabinet adapted for receiving servers therein includes a top plate, a bottom plate opposite to the top plate, a left side plate and a right side plate connecting with the top and bottom plates respectively, and a front side plate disposed between the top and bottom plates. The front side plate defines through holes therein. A total area of the through holes in an upper half portion of the front side plate is different from a total area of the through holes in a lower half portion of the front side plate. The front side plate is rotatable in a plane defined by the front side plate.

Abstract: A cooling system for light emitting diodes (LEDs) is provided that may comprise acoustic baffle members, a micro-channel heatsink that includes fins adjacent to the LEDs, and a fluid flow generator adjacent to the micro-channel heatsink that directs a fluid in a flow direction. The fluid flow generator may include an input to receive the fluid and an exit to exhaust the fluid, which may contact a surface area of the fins. The sound emitted by the fluid flow generator may be substantially cancelled by the acoustic baffle members, which may reflect the sound to a source location as reflected sound waves defined by a substantially inverted phase.

Abstract: A heat dissipating module disposed between a plurality of heating elements is provided. The heat dissipating module includes a plurality of heat conducting units, a set of heat dissipating fins, a plurality of fans, a plurality of sensing units and a control unit. The heat conducting units are connected to the set of the heat dissipating fins and the heating elements. A gap exists between the heat conducting units. The fans are disposed at the same side of the set of the heat dissipating fins. The sensing units are coupled to the heating elements, respectively, to detect the heat generated by the heating elements. The control unit is electrically connected to the fans and the sensing units. The heat generated by the heating elements is different from each other, and the control unit adjusts the speed of the fans according to the heat generated by the heating elements.

Abstract: A heat dissipation device for a computer case is positioned over a hole of the computer case. The heat dissipation device includes a fan, two motors, two plates, and a controller. The fan is fixed in the computer case, and covers the hole. The two motors are positioned at two opposite sides of the fan. Each motor has a motor shaft parallel to a fan shaft of the fan. The two plates are respectively fixed on the two motor shafts. A distance between the two plates along the direction parallel to the motor rotor is greater than or equal to the thickness of the board. A controller is electrically connected to the fan and the two motors. The controller controls the two motors rotate the two boards for exposing or blocking the hole as the fan is on or off.

Abstract: A heat exchanger with earthen material for cooling ambient air may serve as an energy efficient alternative to air conditioning. The heat exchanger may take in ambient air and cool the air through evaporative heat exchange, which may be very useful during summer months in areas where the day temperatures can be very high. A fan may be used to provide airflow through an evaporating heat exchanger, which results in an airflow that is much cooler than the ambient temperature. The heat exchanger may be made from an earthen material, such as fired clay, for example, with a large surface area coming into contact with the airflow. One or more cavities may be present in the heat exchanger to hold water and allow the water to percolate through the porous earthen material.

Abstract: A system for thermal management of electronic equipment. The system can include a cabinet forming an enclosure for the electronic equipment, wherein the cabinet has an inlet and an outlet. Additionally, the system can include a supply channel connected with the cabinet inlet, wherein the cabinet is positioned on a floor and the supply channel is under the floor; an exhaust channel, wherein at least a portion of the exhaust channel is in proximity to the cabinet outlet. Furthermore, the system can include a plurality of flexible barriers forming a thermal curtain for directing air exiting the outlet of the cabinet to the exhaust channel, and wherein a position of the barriers is adjustable.

Abstract: The crop sprayer includes a cooling system that comprises a plurality of heat exchange units attached to a housing. The housing defines an air chamber. The heat exchange units are mounted over openings defined in the walls of the housing surrounding the chamber. A fan is mounted over fan opening defined in the housing to draw air from the chamber and create a pressure drop in front of the coolers. The pressure drop causes air to be drawn through the heat exchange units into the chamber.

Abstract: Thermal management systems for vehicle engines which include hybrid fan drives with viscous clutches and electronic motors, particularly brushless DC motors (BLDC). One embodiment incorporates a pulley driven, electronically controlled viscous clutch mechanism and an internal rotor BLDC motor. Another embodiment includes an engine crank mounted electronically controlled viscous clutch mechanism with a tethered electric motor, particularly a BLDC motor. A further embodiment is an engine block mounted electronically controlled viscous clutch mechanism with an integrated external rotor BLDC motor.

Abstract: A cooling system equipped with an advection-type fan is disclosed. The cooling system includes a casing and an advection-type fan. The casing has a compartment receiving a heat-emitting source or a heat-conducting element. The casing further includes two radial air-guiding openings communicating with the compartment. The advection-type fan has a frame disposed in the compartment. The frame has an air-guiding lateral wall defining a radial air channel. The frame has radial air inlet and a radial air outlet. Both the radial air inlet and the radial air outlet communicate with the radial air channel. The radial air inlet and the radial air outlet face the two radial air-guiding openings of the casing respectively. The radial air channel receives an impeller that causes air advection to dissipate the heat of the heat-emitting source or the heat-conducting element. The frame has two sides that are completely laid open.

Abstract: An illumination apparatus including an LED, a heat sink that dissipates heat of the LED, a fan apparatus provided with a blade and a motor, and a case provided with an opening on the heat sink side, wherein the fan apparatus is provided between the case and the heat sink so that the blade is arranged closer to the heat sink side than the motor. The above configuration allows the fan to be arranged in a large diameter portion of a sphere, and therefore when the illumination apparatus is applied to a bulb type LED lamp whose illumination side on which the LED is arranged is thick and whose socket side is thin, the cooling fan need not be reduced in size. Therefore, it is possible to realize an illumination apparatus having high cooling efficiency and a long useful life.

Abstract: Overhead pushed airflow for a cooling system of a work vehicle. In one embodiment, a cooling includes an interior defined by upstream faces of heat exchangers. An air mover pushes ambient air downward through said cooling box from overhead of the work and across the heat exchangers.