Abstract: An apparatus includes a toroidal fluid mover. A drive mechanism rotates the toroidal fluid mover, such that the toroidal fluid mover directs axially received fluid at a smaller radius in a radial direction towards a greater radius to produce an axial-to-radial fluid flow field. A heat sink is positioned within the axial-to-radial fluid flow field. The heat sink is thermally coupled with a heat generating source and is at least partially filled with a fluid.

Abstract: Cooling in the supersonic region of a compressible fluid is disclosed. The fluid is accelerated by a rotating disk to a velocity equal to or greater than the speed of sound in the fluid in a rotating evaporator tube. No conventional mechanical pump is required to accelerate the fluid. A phase change of the fluid due to a pressure differential may be utilized to transfer heat from an element to be cooled.

Abstract: A cooling unit includes a heat radiant having a heat radiating plate contacting a heating element, and a plurality of heat radiation pins protruding from the heat radiating plate and separated from each other with predetermined intervals therebetween, and formed of an electrical insulating material; and an ionic wind generating unit comprising a corona emitter electrode contacting at least one of the heat radiation pins, a collector electrode facing the corona emitter electrode, and a power unit to connect the corona emitter electrode to the collector electrode and to apply a high voltage to the corona emitter electrode. Thus, the corona emitter electrode and the collector electrode of the ionic wind generating unit may be directly attached to the heat radiant, and a small and light cooling unit may be formed.

Abstract: The present invention provides a heat exchanger with inner fluid to actuate the external fluid pump capable of driving one or more than one of fluid actuation devices through fluids passing through the heat exchanger having thermal-energy fluid pipe, without utilizing external mechanical rotational kinetic energy or power of electric motors; respectively driving external fluid pumping blade devices installed at lateral sides of the heat exchanger having thermal-energy fluid pipe with a direct or non-contact transmission means, so as to drive the external fluid to pass through the heat exchanger for increasing the heat exchange efficiency of the heat exchanger.

Abstract: An electronic system including an enclosure and an internal air plenum within the enclosure. At least one component of the electronic system within the enclosure evolves heat and has a surface exposed to the internal air plenum. The enclosure has inlet and outlet ventilation boundaries together with an EHD air mover disposed therein to motivate airflow along a flow path between the inlet and outlet ventilation boundaries, wherein the flow path is substantially excluded from the internal air plenum by a barrier.

Abstract: Ion wind fans can charge up or spark to the walls of an enclosure. In one embodiment, a heat source can be thermally managed using an ion wind fan by coupling the heat source to a heat spreader that also functions as a wall of an enclosure that contains the ion wind fan. A portion of the heat spreader is then electrically isolated from the ion wind fan, the portion being less than a minimum predetermined distance from the one or more emitter electrodes of the ion wind fan, to avid sparking between the emitters and the enclosure.

Abstract: The device for generating a cooling air flow in a preferential flow direction for cooling electrical components, particularly LEDs, comprises a first and a second channel wall (34,36) having mutually confronting inner sides, and an oscillation drive means (42) for generating an oscillating movement of at least a partial region (38) of at least one of said channel walls (34,36) in the direction toward the other channel wall and away therefrom. The inner side of at least one of said two channel walls (34,36) has a surface structure (30) designed for anisotropic flow, which has a smaller flow resistance coefficient in the preferential flow direction (28) than in a direction extending at an angle to the preferential flow direction (28) and particularly in a direction extending opposite to the preferential flow direction (28).

Abstract: An apparatus for cooling ones self by a traditional manual back and forth fanning movement of the invention. The apparatus has the capability to spray a mist of water into the moving air created by the apparatus so as to aid in the cooling process. The invention can also be used as a sound board or tambourine to create a sound to imitate traditional hand clapping for a signal or for celebratory expression. Also, in one embodiment, the invention serves as a sign or billboard for image or print media advertising. In another embodiment it serves as a traditionally recognizable symbol or trademark.

Abstract: An apparatus comprising a heat sink and a plenum. The heat sink includes a base and a plurality of heat exchange elements, connected to and raised above, a surface of the base. The plenum is located above the heat exchange elements. The plenum includes a housing configured to hold a positive air-pressure therein, and openings in a surface of the housing. The opening are positioned such that air exiting the plenum through the openings is directed to the heat sink.

Abstract: Disclosed herein is a cooling system that utilizes a supersonic cooling cycle. The cooling system includes accelerating a compressible working fluid, and may not require the use of a conventional mechanical pump. The cooling system accelerates the fluid to a velocity equal to or greater than the speed of sound in the compressible fluid selected to be used in the system. A phase change of the fluid due at least in part to a pressure differential cools a working fluid that may be utilized to transfer heat from a heat intensive system.

Abstract: A thermal management apparatus includes an electrohydrodynamic fluid accelerator energizable to motivate fluid flow. Primary heat transfer surfaces are positioned to transfer heat into the fluid flow and an ozone reducing material is positioned downstream of the primary heat transfer surfaces. Heating of the ozone reducing material by the fluid flow increases the efficacy of the ozone reducing material. A method of making a product includes positioning an emitter electrode and at least one other electrode to motivate fluid flow along a flow path when the electrodes are energized. The method further includes positioning heat transfer surfaces in the flow path to transfer heat to the fluid flow and positioning ozone reducing material downstream of the heat transfer surfaces in the flow path, the ozone reducing material selected such that heating of the ozone reducing material by the fluid flow increases ozone reducing efficacy of the ozone reducing material.

Abstract: A system for cooling a heat producing device is provided. The system can include an air mover (110) wherein at least a portion of the discharge airflow (115) is directed radially outward. The system can also include a thermal conduit (120) and a thermal member (130). The thermal member can have a first surface (135), a second surface (140) and at least one integrally formed heat exchange surface (150). At least a portion of the heat exchange surface (150) can be at least partially disposed in the air mover discharge airflow (115). At least a portion of the first surface (135) can be disposed proximate the thermal conduit (120). At least a portion of the second surface (140) can be disposed proximate the air mover (110).

Abstract: An airflow generator includes stacked airflow-generating units. Each airflow-generating unit includes a casing, first and second vibrating diaphragms received in the casing and spaced from each other, first and second driving members for driving the first and second vibrating diaphragms, and a nozzle connected to the casing. An inner space of the casing is divided into a first chamber formed between the first and second vibrating diaphragms, and a second chamber and a third chamber located at two opposite sides of the first chamber. The first driving member includes a first movable magnet attached to the first vibrating diaphragm, and a first stationary magnet received in the second chamber and attached to the casing. The second driving member includes a second movable magnet attached to the second vibrating diaphragm, and a second stationary magnet received in the third chamber and attached to the casing.

Abstract: A tempering channel (1) for tempering confectioneries (4) includes a tempering tunnel (2) and a conveyor belt (5) having an upper part (11) and a lower part (12). A transfer location (8) is located at the conveyor belt (5). The confectioneries (4) arrive at the transfer location (8) to be placed on the upper part (11) of the conveyor belt (5). The conveyor belt (5) transports the confectioneries (4) through the tempering tunnel (2). A first tempering apparatus (6) tempers the confectioneries (4) while they are transported through the tempering tunnel (2). The tempering channel (1) includes a control unit (16) and at least one sensor (15) sensing the temperature of the lower part (12) of the conveyor belt (5). The sensor (15) is connected to the control unit (16) to transmit a signal to the control unit (16) depending on the sensed temperature. A second tempering apparatus (14) is connected to the control unit (16).

Abstract: A water cooling type heat dissipation module for an electronic device includes a base disk, a suction disk, a water guide and a cover. The base has two containing spaces and a plurality of cooling strips in the containing space. The suction base is attached to the base disk and further includes two water chambers for receiving sucked water, two inlets and two outlets. The water guide is attached to the suction disk with two guide port at the periphery thereof. The cover closes the suction disk and is movably joined to a guide fan. When the heat dissipation module is full with fluid, the fluid can flow therein rapidly while the guide fan rotating such that the fluid is discharged from and flows into the heat dissipation module more effectively.

Abstract: In an apparatus for enhancing convection of air at a working element of a heat exchanger, a main flow of air is directed toward the working element. A priming flow of pressurized air is provided to impinge upon the working element, to disrupt a stagnant boundary layer adjacent the working element, and to thereby enhance the main flow of air.

Abstract: In one embodiment, the present invention includes a liquid processing system. In the liquid processing system, a first liquid source transmits feed liquid to a heat exchange unit while a heat generation unit transmits warm coolant to the heat exchange unit. A heat generation unit warms the feed liquid while cooling the warm coolant. The warmed feed liquid is sent to a pump, and cooled feed liquid from a second liquid source is mixed with the warmed feed liquid as necessary until a target temperature is reached. The warmed feed liquid is sent to a reverse osmosis unit for filtering and the resulting permeate is sent to the liquid utilization unit. The cooled coolant is sent from the heat exchange unit to the storage tank and if the cooled coolant is not cool enough, it is sent to a cooling tower for further cooling.

Abstract: The invention provides a device for generating high pressure air. The device comprises a block having an external surface and an internal surface, said internal surface defining an internal cavity in said block. A rotor located inside said cavity is capable of rotating about under the influence of wind energy. The block is capable of moving relative to the rotor in a direction orthogonal to the axis of rotation of the rotor so as to vary the position of the rotor within the cavity. A plurality of vanes extend from the rotor, and are coupled to the rotor in such a manner that, in every position that the block is capable of adopting relative to the rotor, the rotor is capable of rotating within the cavity while maintaining a seal between each vane and the internal surface of the block. There is a gas inlet channel and a gas outlet channel on an opposite side of the block to the gas inlet channel.

Abstract: An apparatus for removing heat comprises a heat sink having a cavity, and a synthetic jet stack comprising at least one synthetic jet mounted within the cavity. At least one rod and at least one engaging structure to provide a rigid positioning of the at least one synthetic jet with respect to the at least one rod. The synthetic jet comprises at least one orifice through which a fluid is ejected.

Abstract: A liquid cooling apparatus for cooling an inversely mounted electronic component, includes a casing defining a receiving room therein, a diaphragm, a partition plate forming a nozzle thereon, and a piezoelectric element attached to the diaphragm in such a manner that that a vibrating direction thereof is perpendicular to the diaphragm. The diaphragm is arranged in the receiving room and divides the receiving room into a top first chamber and a bottom second chamber isolated from each other. The partition plate is arranged in the first chamber and divides the first chamber into an upper region and a lower region. The lower region is filled with a working fluid. When the diaphragm is driven to vibrate upwardly by the piezoelectric element, the diaphragm pushes the working fluid in the lower region of the first chamber to the upper region of the first chamber via the nozzle.

Abstract: Methods and systems for algae production are provided, the methods and systems generally comprising providing at least one body of water having an algae population in suspension, growing algae, heating the body of water with a heat source, heating the algae process with a heat source, drying the algae with a heat source, and covering the body of water with a cover. Heat recovery systems, algae processing, and covers are also provided.

Abstract: An electrohydrodynamic fluid accelerator includes an emitter electrode and leading surfaces of a collector electrode that are substantially exposed to ion bombardment. Heat transfer surfaces downstream of the emitter electrode along a fluid flow path include a first portion not substantially exposed to the ion bombardment that is conditioned with a first ozone reducing material. The leading surfaces of the collector electrode are not conditioned with the first ozone reducing material, but may include a different surface conditioning. The downstream heat transfer surfaces and the leading surfaces can be separately formed and joined to form the unitary structure or can be integrally formed. The electrohydrodynamic fluid accelerator can be used in a thermal management assembly of an electronic device with a heat dissipating device thermally coupled to the conditioned heat transfer surfaces.

Abstract: A portable light or device or heat dissipater may comprise a heat sink for having a light source or other heat generating element thermally coupled thereto, and having a plurality of walls extending from a side thereof for defining a cavity and plural passages, a fluid mover in the cavity of the heat sink for selectively causing a fluid to move through the cavity and the plural passages, and a light source or other heat generating element adjacent to and thermally coupled to the heat sink. The heat dissipater may be connected to a housing in various configurations.

Abstract: A device for the transportation and chilling of a film tube extruded shortly before has at least one first pair of rollers, through the clearance between which rollers, the film tube enters into a chilling area, and a second pair of rollers, through the clearance between which rollers, the film tube leaves the chilling area. Thereby the film tube can discharge heat to its environment between the first and the second roller pair. The path length that the film traverses between the first roller pair and the second roller pair is variable.

Abstract: A self-powered pump for heated liquid is provided. The pump includes an airtight container for containing the heated liquid. A heated liquid inlet pipe extends upwardly into the container such that its end is within the container. A heated liquid outlet is lower than the end of the inlet pipe. A breathing pipe extends upwardly into the container such that its end is within the container and is higher than both of the outlet and the end of the inlet pipe but lower than an interior side of the container top. An opposite end of the breathing pipe is outside the container, lower than the container base, and is received by an open container such that the opposite end can become submerged in heated liquid accumulated within the open container during pump operation. A fluid or liquid heating system incorporating the self-powered pump may operate without external power for the pump.

Abstract: A supersonic cooling system operates by pumping liquid. Because the supersonic cooling system pumps liquid, the compression system does not require the use of a condenser. The compression system utilizes a compression wave. An evaporator of the compression system operates in the critical flow regime where the pressure in an evaporator tube will remain almost constant and then ‘jump’ or ‘shock up’ to the ambient pressure.

Abstract: A cooling system is provided for a thermoelectric power generator and that is arranged in an exhaust gas line of an internal combustion engine for generating electric power while utilizing thermal energy of the exhaust gas. The thermoelectric power generator has its own coolant circuit, which also serves to raise the temperature of the components of the internal combustion engine, the chassis, and/or the transmission or serves to heat the passenger compartment. This offers the added utility gained from a faster temperature rise of transmission lubricants and lubricants of the internal combustion engine, as well as from heating the passenger compartment and the rear axle differential and, thus, offers a reduction of carbon dioxide emissions (CO2).

Abstract: Systems and methods of energy storage and release comprise at least one storage vessel and a combined conveyor and heat transfer device linked to the at least one storage vessel by at least one discharge device. The combined conveyor and heat transfer device includes a rotatable conveyor drum and at least one heat transfer fluid conduit within the rotatable conveyor drum. A granular material travels from the at least one storage vessel to the combined conveyor and heat transfer device via the at least one discharge device, and the rotatable conveyor drum moves the granular material therethrough in counterflow to a flow of heat transfer fluid traveling through the heat transfer fluid conduit.

Abstract: A cooling device for cooling a component comprising a heat sink, a housing having an inner chamber, wherein a volume-changing device is formed to withdraw a fluid into the chamber and to expel the fluid from the chamber, the withdrawal causing a first flow and the expulsion causing cortices which form a second flow. A preheating device is also provided and is configured to convey the first flow and the second flow, and to increase the temperature of the first fluid quantity entrained by the first flow during the withdrawal from an initial temperature to a first temperature, and to increase the second fluid quantity entrained by the second flow, from the first temperature to a second temperature.

Abstract: Various embodiments of a fluid displacement system are disclosed. The system may include a reservoir containing a fluid in a liquid state and a first chamber hydraulically connected to the reservoir to receive the fluid from the reservoir. The first chamber may be configured to receive solar energy and configured to convert the received solar energy to vaporize the fluid. The system may also include a second chamber hydraulically connected to the first chamber to receive the vaporized fluid from the first chamber. The second chamber may be configured to condense the vaporized fluid, causing depressurization in the second chamber. The system may also include a hydraulic connection between the second chamber and a source of fluid to be displaced. The system may be configured such that the depressurization of the second chamber may cause fluid in the source of fluid to be displaced through the hydraulic connection.

Abstract: A cooling device includes a heat sink body having a plurality of elongated channels that extend between respective channel inlets and outlets. A synthetic jet actuator module is adjacent to the heat sink body and includes a plurality of jet outlets adjacent to the respective channel inlets for emitting a plurality of vortices into the channels.

Abstract: A heat exchanger (1) includes: a heat sink (3) which is in contact with a heating element (2); and an electron emitting element (4) which is provided so as to be separated from the heat sink (3) by a space and which provides electrons to the heat sink (3) via air in the space. The electron emitting element (4) includes: an electrode substrate (7); a thin-film electrode (9); a power supply (10) which applies a voltage between the electrode substrate (7) and the thin-film electrode (8); and an electron acceleration layer (8) which accelerates the electrons inside itself in response to the voltage applied by the power supply (10) so that the electrons are emitted from the thin-film electrode (9). The electron acceleration layer (8) is made at least partially of an insulating material. As a result, the heat exchanger (1) has a heat exchange capability which can be maintained and improved independently of a structure in which electric field concentration tends to occur.

Abstract: A preferred embodiment of the MEMS cooling device of the invention comprises one or more MEMS micro-channel volumes in communication with one or more MEMS micro-pump assemblies wherein each micro-pump assembly comprises a flexure valve, such as a leaf valve and means to drive a coolant through the channel volumes such as an electrostatic interleaved comb drive structure. A preferred embodiment comprises an inlet micro-pump assembly and an outlet micro-pump assembly but the device may also be fabricated with a single pump mechanism per channel volume.

Abstract: An air cooled steam condenser for condensing exhaust steam from a steam turbine including a steam delivery manifold, first and second bundles of aligned elongated tubes extending downwardly at an angle to the axis of the steam delivery manifold, each bundle containing a plurality of elongated tubes having exterior aluminum fins, an exterior coating of aluminum and an interior cladding of stainless steel having a thickness between about 45 and 125 microns, wherein a height measured between the rounded ends of the tubes is greater than 220 mm or between 220 and 280 mm and the length of the tubes is greater than 11 m, preferably between 12 and 14 m or greater.

Abstract: The present invention regards a subsea cooling unit having an inlet for a hot fluid and an outlet for cooled fluid, the cooling unit comprising a number of coils exposed to seawater, and means for generating a flow of seawater past the coils, where the means for generating the flow of seawater comprises a propeller and a rotatable actuator and that the cooler is enclosed in a duct.

Abstract: A cooling device (1) using pulsating fluid for cooling of an object, comprising: a transducer (2) having a membrane adapted to generate pressure waves at a working frequency (fw), and a cavity (4) enclosing a first side of the membrane. The cavity (4) has at least one opening (5) adapted to emit a pulsating net output fluid flow towards the object, wherein the opening (5) is in communication with a second side of the membrane. The cavity (4) is sufficiently small to prevent fluid in the cavity (4) from acting as a spring in a resonating mass-spring system in the working range. This is advantageous as a volume velocity (u1) at the opening is essentially equal to a volume velocity (u1?) at the second side of the membrane, apart from a minus sign. Thus, at the working frequency the pulsating net output fluid can be largely cancelled due to the counter phase with the pressure waves on the second side of the membrane resulting in a close to zero far-field volume velocity.

Abstract: A hydraulic fluid cooling system for a pair of integrated hydrostatic transmissions includes a common reservoir holding hydraulic fluid and having hydraulic lines connecting the common reservoir to each integrated hydrostatic transmission, a hydraulic fluid reservoir inside each integrated hydrostatic transmission, and a pump for pumping fluid from each transmission's hydraulic fluid reservoir to the other transmission. Hydraulic fluid lines link each transmission's hydraulic fluid reservoir to the other transmission. The system pumps hydraulic fluid from the sump or reservoir of each integrated hydrostatic transmission to the other transmission, providing the cooling capacity of a non-loaded transmission to cool hydraulic fluid for a fully loaded transmission.

Abstract: A condenser is provided and includes a body into and through which steam turbine discharge is able to flow, and first and second cooling members disposed in the body, wherein the first and second cooling members are each independently receptive of first and second coolant, respectively, the first cooling member, being receptive of the first coolant, is configured to cool the discharge during at least a first cooling operation, and the second cooling member, being receptive of the second coolant, is configured to cool the discharge during a second cooling operation.

Abstract: An electrically powered pump for a cooling system in a machine such as an electric drive track-type tractor includes a pump housing having a first volute and a second volute, each including a different cooling circuit segment. A drive assembly including an electric motor and a pump shaft is positioned within the pump housing, and a first impeller and a second impeller are mounted on the pump shaft at first and second axial locations on opposite sides of a rotor of the electric motor. The first impeller has a first impeller configuration, and defines a first tolerance sensitivity with the first volute, and a second impeller has a second, different impeller configuration and defines a second, lesser tolerance sensitivity with the second volute. The first impeller may include au open impeller positioned at a first clearance with the first volute, and the second impeller may include a closed impeller positioned at a second, greater clearance with the second volute.

Abstract: A water block is used to be adhered to a heat-generating element and includes a cavity. The cavity has a chamber therein. One side or both sides of the chamber is provided with an inlet pipeline and an outlet pipeline respectively, thereby communicating with the chamber. Further, the chamber is provided therein with a heat-exchanging means for performing a heat-exchanging action with a working fluid. Finally, the top face of the cavity is provided with a membrane. An activating element is adhered on the membrane for driving the membrane to swing up and down, thereby forcing the working fluid within the chamber to circulate in single direction. The activating element is used as a power source, and in addition, the water block can be made much thinner.

Abstract: A heat dissipation module for an electronic device includes a base disk, a suction disk, a water guide and a cover. The base has a containing space and a plurality of cooling strips. The suction base is attached to the base disk and further includes a water chamber for receiving sucked water, an inlet and an outlet. The water guide is attached to the suction disk with a guide port at the periphery thereof. The cover closes the suction disk and is movably joined to a guide fan. When the heat dissipation module is full with fluid, the fluid can flow therein rapidly while the guide fan rotating such that the fluid is discharged from and flows into the heat dissipation module more effectively.

Abstract: A heat dissipation device capable of collecting air includes a fan, a heat sink and an air collecting hood. The top of the heat sink is joined to the fan. The air collecting hood is disposed to surround the heat sink. It is characterized in that the air collecting hood has an air inlet, a middle section and an air outlet; and the inner side of the middle section has a plurality of support projections against the periphery of said heat sink. Therefore, the air induced by the fan can be gathered at the surroundings of the heat sink with the air collecting hood for enhancing the effect of the heat dissipation.

Abstract: A pulsating fluid cooling device comprising a transducer (1) for generating a pulsating fluid flow and a fluid guiding structure (3) for directing the pulsating flow towards an object (4) to be cooled. The device further comprises a sensor (7) for detecting at least one variable external to the transducer, a feedback path (6) for providing a feedback signal 5 indicative of this variable, and control circuitry (5) arranged to receive the feedback signal and generate a frequency control signal based on said feedback, for controlling a working frequency of the transducer. By providing the control circuitry with information about the conditions at the object, the frequency can be controlled based on actual performance. The performance can be 10 optimized in terms of the measured variable. For example, if the feedback signal includes information about the temperature change of the object, the control circuitry can be arranged to select a working frequency that results in optimal cooling.

Abstract: In a heating or cooling system having a heat generator or a cooler, with a pump, a distributor for distributing the heating or cooling carrier medium to the heating or cooling surfaces, and possibly further heat or cold transmitting elements, having a collector for collecting the heating or cooling carrier medium from the heating or cooling surfaces, and possibly from further heat or cold transmitting elements, and having a flow control valve, a flow control valve is disposed in each heating or cooling circuit for increasing the control accuracy of the room temperature control system, wherein the flow control valves are disposed on the distributor or collector.

Abstract: An air conditioner having an enhanced user perception and a controlling method thereof are provided. A predetermined character and/or its applied character image are/is displayed on a display window of the air conditioner. The character and/or the character image are/is changed depending on the operational states of the air conditioner, so that the user perceives the operational state of the air conditioner more conveniently. The air conditioner has advantages in that the user can perceive the operational state of the air conditioner more conveniently, the user can be stimulated to purchase the product, and a use term of the air conditioner can be extended.

Abstract: A hot water generator which has a high ability to prevent the hot water temperature from rising above a preset temperature when withdrawal of hot water is stopped. A hot water withdrawal pipe 5 of a heat exchanger 1 and a cold water intake pipe 4 thereof are connected through a circulating pipe 40 having a circulating pump 39. A cold water reservoir 42 is provided in the heat exchanger 1 on its cold water intake pipe 4 side. When withdrawal of hot water is stopped, the circulating pump 39 forces hot water in the heat exchanger 1 to circulate through the cold water reservoir 42, cold water intake pipe 4, circulating pipe 40 and hot water withdrawal pipe 5 back to the heat exchanger 1 or the circulating pump 39 forces hot water in the heat exchanger 1 to circulate through the hot water withdrawal pipe 5, circulating pipe 40, cold water intake pipe 4 and cold water reservoir 42 back to the heat exchanger 1.

Abstract: A cooling system of a fuel cell is provided with a main cooling flow passage and a bypass cooling flow passage which is arranged parallel with the main cooling flow passage and diverts the same coolant, as flow passages through which coolant flows. A radiator and a coolant circulation pump (WP) and the like are arranged in the main cooling flow passage. Coolant from the main cooling flow passage enters the bypass cooling flow passage and reaches a second heat exchanger via a case of a motor of an ACP and the like. At the second heat exchanger, heat exchange is also performed with a supply gas flow passage, after which the coolant returns to the main cooling flow passage. The manner in which the coolant is distributed can be changed depending on where the coolant is diverted from the main cooling flow passage and the arrangement of the circulation pump.

Abstract: Generally disclosed and claimed is an non-belt driven motor vehicle cooling fan having an interruptible driving force such as electrical or hydraulic driving force. More specifically disclosed is a vehicle cooling fan having an driving force interrupted when the vehicle enters water that may contact the fan.

Abstract: This invention relates to a device that can be used to filter airflow into an electrical appliance. The device comprises: (a) an air propulsion unit with an air outlet zone; and (b) a filtration unit, wherein the filtration unit is located downstream of the air outlet zone of the air propulsion unit. The surface area of the filtration unit may be equal to or greater than the surface area of the air outlet zone of the air propulsion unit. The invention also relates to an electrical appliance comprising such a device, a kit of parts, and a dust filtration element that is three-dimensional in shape.

Abstract: In one aspect, a self-powered pump for heated liquid is provided. The pump includes an airtight container for containing the heated liquid. A heated liquid inlet pipe extends upwardly into the container such that its end is within the container. A heated liquid outlet is lower than the end of the inlet pipe. A breathing pipe extends upwardly into the container such that its end is within the container and is higher than both of the outlet and the end of the inlet pipe but lower than an interior side of the container top. An opposite end of the breathing pipe is outside the container, lower than the container base, and is received by an open container such that the opposite end can become submerged in heated liquid accumulated within the open container during pump operation. A fluid or liquid heating system incorporating the self-powered pump may operate without external power for the pump. In another aspect, a fluid heating and storage tank is provided.