Abstract: A device for controlling heat flow in a spacecraft which always has the same face facing towards the earth, a pair of mutually parallel opposed North and South faces perpendicular to the North-South axis of the earth and two pairs of mutually parallel opposed East/West and Earth/Anti-earth faces, heat-dissipating or -transmitting equipment being provided on the internal walls of the North and South faces, this device comprising a plurality of heat pipes connecting the North and South faces of said craft to another pair of opposed faces of said craft and forming a heat-pipe loop in thermal-conduction contact with one another.

Abstract: The present invention relates to a cooling mechanism (1), in particular for cooling oil in a motor vehicle, with a housing (2) having a bracket (3), by means of which housing (2) the cooling mechanism (1) is connected to an internal combustion engine, a transmission fluid cooler (10), and an engine oil cooler (7). Pertinent to the invention is that the cooling mechanism (1) is designed in a sandwich-type manner having an intermediate module (11) positioned between the engine oil cooler (7) and the transmission fluid cooler (10), which intermediate module (11) has at least one supply/removal assembly (12) that communicates with the engine oil cooler (7) and has corresponding supply/removal lines or connections.

Abstract: A method of cooling a radiator in an internal combustion engine wherein a plurality of fan assemblies is provided. Specifically, each fan assembly has a housing with an interior containing a fan blade and an exterior having six sides to form a hexagonal perimeter. The fan assemblies are then arranged side by side to form a cluster of fan assemblies in order to maximize the amount of fan assemblies that may be provided on an enclosure. The cluster of fan assemblies is then placed adjacent to a radiator to control the air flow over the radiator in order to cool the engine.

Abstract: An object of the invention is to provide a heat exchanger (radiator) or a cooling module having the radiator and a condenser, which has a higher rigidity against vibration in the vertical direction. To the end, the radiator or the cooling module is mounted to a vehicle by mounting brackets, which are fixed to the radiator tanks at their vertical ends. The mounting brackets have mounting pins, with which the radiator or the cooling module is mounted to the vehicle.

Abstract: A system (10) and method for removing heat from an engine compartment in a motor vehicle where heat generated by operation of a heat engine (12) that propels the vehicle tends to collect. Engine heat is collected in a thermofluid in a reservoir forming an evaporator (14) where the thermofluid absorbs heat sufficient to evaporate it. The vapor naturally migrates to a condenser (22) that is cooled sufficiently to condense the vapor back to liquid phase. The liquid falls by gravity back to the condenser.

Abstract: An open cart occupant cooling system is disclosed. The system includes a number of fan(s) each capable of delivering about 900 cfm of air flow, in a simulated 10 mph breeze, to the seating positions of the occupants. The fans are clamped to the cart roof struts, or other mounts, so as to direct a stream of cooling air toward the cart occupant(s). The fans are activated by a pressure or proximity sensitive switch upon an occupant alighting onto the seat of the cart. The cooling system can be retrofit with temporary hand operated clamps to mount the fans and be operated with either a plug in or self-contained rechargeable electrical supply and, if so desired, wired to a seat cushion operated pressure switch.

Abstract: An energy recovery system for hybrid automobile. The energy recovery system generates electricity by utilizing the temperature difference between a high temperature thermal medium and a low temperature thermal medium. As the high temperature thermal medium, engine coolant for cooling an engine is used. As the low temperature thermal medium, pump refrigerant for cooling by a heat pump is used. The heat pump maintains the pump refrigerant at a low temperature by using heat from the engine coolant. Therefore, while electricity is reliably generated at a thermoelectric converter, energy is efficiently used for cooling the pump refrigerant.

Abstract: Embodiments of the invention pertain to a method and apparatus for protecting temperature sensitive products during air, ground, or sea transportation. Specific embodiments of the invention relate to a chamber built inside a trailer or sea container where temperature sensitive products are placed to have additional protection against the environmental conditions encountered during the transportation and distribution periods. The dimensions and modularity of the chamber can vary depending on the trailer or sea container the chamber is designed to be used with. This chamber can be preassembled and inserted into the desired trailer or sea container or can be assembled inside the trailer or sea container. The chamber system can include insulated and or non-insulated walls, conveyor system, ventilation system, temperature and asset (trailer or sea container) location tracking. The location tracking can utilize, for example, cellular (GSM) and/or satellite communication, with or without GPS tracking.

Abstract: A cooling device for an electrical power unit of electrically operated vehicles, comprising at least one power section and at least one control section. A first cooling circuit containing a heat exchanger with a low coolant temperature is provided mainly for cooling elements of the control sections, and a further cooling circuit with a higher coolant temperature is provided mainly for cooling elements of the power sections.

Abstract: A heat exchanger is provided, in particular an exhaust gas evaporator of a motor vehicle, including a heat exchanger block, a first axial terminating device and a second axial terminating device, in which the heat exchanger block has axial inlet openings and axial outlet openings, and in which means for forming a positive fit with the axial terminating devices are situated on the heat exchanger block, the means for forming the positive fit projecting at least partially over the axial inlet openings and/or over the axial outlet openings in the heat exchanger block in the axial direction, such that they may be situated radially next to contact shoulders of the axial terminating devices, thereby providing a heat exchanger that is particularly pressure-resistant in the radial direction.

Abstract: A snow vehicle includes an engine, a track belt arranged on a rear side of the engine, and a cooling water path for cooling the engine, in which the engine includes a cooling water inlet portion and a cooling water outlet portion provided on a front surface side of the engine and connected with the cooling water path. The snow vehicle is capable of improving the turning ability of the vehicle, while simplifying a cooling water path and reducing the size of the structure for cooling the engine.

Abstract: An EGR cooler including tubes and a shell enclosing the tubes. Cooling water is supplied into and discharged from the shell. Exhaust gas is guided from a diesel engine into the tubes for thermal exchange of the exhaust gas with the cooling water. A bypass flow path for guiding the cooling water is constituted within the shell so as to prevent stagnation of the cooling water in the shell.

Abstract: The invention relates to a heat exchange device, in particular a vehicle radiator, for indirect exchange of heat between a first medium and a second medium, with a first guide section for routing the first medium and a second guide section for routing the second medium, the first guide section being formed by a thermally conductive heat exchange element consisting of graphite foam and being spatially separated from the second guide section, at least part of a second guide section being formed by the heat exchange element. The invention furthermore relates to a method for producing a heat exchange element for a heat exchange device, in particular for the radiator of a motor vehicle.

Abstract: An exhaust cooling system of an amphibious vehicle operable in land and marine modes comprises an exhaust system to be cooled, at least one air-liquid heat exchanger, at least one liquid-liquid heat exchanger, and coolant liquid in thermal communication with the exhaust system to be cooled, the air-liquid heat exchanger(s) and/or the liquid-liquid heat exchanger(s) and heated by the exhaust system. When the amphibious vehicle is operated in land mode, the coolant liquid is cooled by the air-liquid heat exchanger(s). When the vehicle is operated in marine mode, the coolant liquid is cooled by the liquid-liquid heat exchanger(s). The air-liquid heat exchanger(s) may also be used on water. The vehicle may plane, and have retractable road wheels. The air-liquid heat exchanger(s) may be mounted at the front or rear of the vehicle, or elsewhere.

Abstract: The present invention is a cooling device including a heat absorbing unit, provided with an inflow port of a coolant medium and a discharge port for discharging the coolant medium, sealing the coolant medium in parts other than the inflow port and the discharge port, wherein the heat absorbing unit includes an upper member having an installation surface where semiconductor elements serving as an object to be cooled are installed and a cooling surface serving as a back surface of installation surface, and a lower member forming a chamber having cooling surface as a part of an inner wall surface together with upper member. Injection ports communicating with inflow port for injecting the coolant medium toward cooling surface are provided and the discharge port is provided at a position lower than opening positions of injection ports in lower member. Thereby, it is possible to provide a cooling device of improving cooling efficiency and reducing cooling unevenness.

Abstract: This invention involves orientation structure on the side plate for cooling fins in automotive heater core, which belongs to the field of auto parts technology. The structure includes the side plates (5) and the cooling fins (7), characteristics of said structure are that there are two button protuberance (5.1) at both ends of the side plates (5) where the ends of cooling fins (7) are. This coordinative structure prevents the cooling fins from touching the header while increases the friction between the cooling fins and side plates, it keeps the cooling fins from partially melting, burning and dropping out during the brazing process, thus ensures the brazing quality.

Abstract: The invention relates to a tank withdrawal system for a vehicle tank filled with a frozen liquid. The tank withdrawal system comprises a heating system comprising at least one electric heating element as primary heating device and a conduit system provided with at least one withdrawal conduit with a withdrawal opening arranged in the vehicle tank. The cold start volume of the frozen liquid extending around the withdrawal opening can be melted by the primary heating device. To quickly melt a cold start volume while melting off the remaining frozen liquid consuming as minimal amount of energy, the heating system comprises a secondary heating device supplied with a heating fluid and the conduit system comprises at least one heating conduit through which the heating fluid can flow and which is arranged in the liquid in the vehicle tank.

Abstract: A cooling system of a heating element includes a passenger compartment, a heating element, a blower fan and a conducting duct. The blower fan is capable of sucking the air in the passenger compartment to supply the heating element with the air and cool the heating element. The conducting duct has one end portion connected with an inner space of the passenger compartment, the other end portion connected with the heating element, and an intermediate portion provided with the blower fan therein. The one end portion of the conducting duct is provided with a liquid trapping portion/part that separates the air and liquid contained in the air to prevent the liquid from entering the conducting duct.

Abstract: A heat exchanger (10) is provided with a PTO section (12) passing through its core (14), with all of the components of the heat exchanger (10) being brazed together at the same time during assembly of the heat exchanger (10).

Abstract: A vehicle front structure including: a heat exchanger placed upright in a vehicle front part; a left air guide plate formed upright on a left side of the heat exchanger to extend frontward therefrom; a right air guide plate formed upright on a right side of the heat exchanger to extend frontward therefrom; a drain opening formed at a bottom of only one of the left and right air guide plates; and an air intake port for an engine formed above the heat exchanger, and arranged closer to the one of the left and right air guide plates in which the drain opening is formed, from a center of the heat exchanger in a left-right direction.

Abstract: A fluid cooler for cooling a fluid, such as oil, associated with an engine of a vehicle, such as a motorcycle, includes a housing for mounting to a portion of the vehicle. In one embodiment, the housing is tubular in shape. First and second vents for air flow are formed in the housing. In one embodiment, the first vent is for air intake and is located in a first end cap of the housing, while the second vent is for air exhaust, is located in a second end cap and has a cross sectional area approximately equal to a cross sectional area of the first vent. Within the housing, a fluid passageway exists for containing a flow path of the fluid associated with the engine. A fan moves air past the fluid passageway. By the design of the cooler and its mounting orientation on the vehicle, in a preferred embodiment, substantially no air passes through the housing when the fan is not operating regardless of whether the vehicle is moving.

Abstract: A HVAC system for a vehicle that includes a propulsion system, a frame, a passenger compartment, and a door coupled to the frame. The HVAC system includes a refrigeration circuit that selectively controls the temperature of the passenger compartment based on a sensed temperature within the passenger compartment. The refrigeration circuit includes an exterior heat exchanger, a first air moving device coupled to the exterior heat exchanger, an interior heat exchanger, a second air moving device coupled to the interior heat exchanger, and a compressor. The HVAC system also includes a controller that is operable to detect a condition of the vehicle that includes at least one of a position of the door, a location of the vehicle, and a load of the propulsion system. The controller is programmed to adjust the refrigeration circuit in response to the sensed passenger compartment temperature and the detected vehicle condition.

Abstract: The components used in this invention has never been utilized in this special type of arrangement ever before. This “Climate Control for Parked Automobiles” does not exist and cannot be found anywhere. Once available to the public it will be very helpful and will help stranded passengers and/or pets inside the automobile during warm summer days, and to drivers returning to their warm vehicles during cold winter days.

Abstract: A cooling system (10) for the cooling of heat producing devices (44, 46, 48) in an aircraft is designed with a central cold producing device (12), at least one cold consumer (44, 46, 48) and a cold conveyance system (14) which connects the cold producing device (12) and the cold consumer (44, 46, 48). With this cooling system, the cold conveyance system (14) has at least one cooling circuit which supplies a cooled cold carrier medium from the cold producing device (12) to at least one cold consumer (44, 46, 48) and brings this back to the cold producing device (12), so that at least one cold consumer (44, 46, 48) is supplied with the cold produced in the cold producing device (12) by means of the cold carrier medium circulating in the cooling circuit.

Abstract: An air and coolant control system comprising: a heat source configured to receive air, generate heat, receive coolant, conduct the received coolant to a coolant outlet, and transfer the generated heat to the received coolant, thereby removing the generated heat from the heat source as the coolant is conducted out of the heat source; an air supply source configured to supply the air to the heat source; an air supply control system configured to adjust the supply of air from the air supply source to the heat source based on a dynamic feedback temperature characteristic from the heat source; a coolant supply source configured to supply the coolant to the heat source; and a coolant control system configured to adjust the flow rate of the coolant based on an estimated feed-forward heat source characteristic and to adjust the temperature of the coolant based on the dynamic feedback temperature characteristic.

Abstract: To enable immediate and easy-to-understand confirmation of heat-dissipation capability only by entering shape data of a radiator without switching screens. Shape data input sections and a shape display section for a radiator, and a graph display section which displays the calculated result as a graph are adapted to be displayed on the identical screen of the screen device. The pattern diagram of a radiator shape and the result of heat-dissipation capability can be seen on the graph simultaneously only by entering the shape data of the radiator without switching the screen.

Abstract: A heat-removing device for a vehicle including: an interior part having a plate portion exposed to direct sunlight including a baseboard formed of a resin or a composite material containing a resin and a skin material which covers an outer surface of the baseboard; a heat conducting plate for collecting heat from the skin material, provided on an inner side of the skin material of the plate portion and inside of an inner surface of the baseboard in a direction of a thickness of the baseboard; and a heat pipe provided on an inner side of the inner surface of the baseboard and connected in heat-conductive relationship to the heat conducting plate, which transfers heat collected by the heat conducting plate to a heat releasing device.

Abstract: A heat exchanger for a motor vehicle includes a pair of tanks, a core part and a fan shroud. The tanks are arranged apart from each other in a lateral direction of the motor vehicle. The core part is located between the tanks. The fan shroud is arranged at one of a front side and a rear side of the core part, and the fan shroud is formed with a pair of fan ring portions in which a pair of motor fans is installed, respectively. At least one of an upper end portion and a lower end portion of at least one of the fan ring portions of the fan shroud is protruded from the core part in an upward and downward direction of the core part, and the fan ring portions are arranged at inner sides of the tanks in the lateral direction.

Abstract: An exhaust cooling system of an amphibious vehicle operable in land and marine modes comprises an exhaust system to be cooled, at least one air-liquid heat exchanger, at least one liquid-liquid heat exchanger, and coolant liquid in thermal communication with the exhaust system to be cooled, the air-liquid heat exchanger(s) and/or the liquid-liquid heat exchanger(s) and heated by the exhaust system. When the amphibious vehicle is operated in land mode, the coolant liquid is cooled by the air-liquid heat exchanger(s). When the vehicle is operated in marine mode, the coolant liquid is cooled by the liquid-liquid heat exchanger(s). The air-liquid heat exchanger(s) may also be used on water. The vehicle may plane, and have retractable road wheels. The air-liquid heat exchanger(s) may be mounted at the front or rear of the vehicle, or elsewhere.

Abstract: A construction vehicle includes vehicle frames, an operator cab, a hydraulic oil tank, and engine, and an engine cover. The operator cab is mounted on the vehicle frames. The hydraulic oil tank is disposed to the rear of the operator cab and stores hydraulic oil. The engine is disposed to the rear of the hydraulic oil tank. The engine cover is a member that covers the engine. A rear face of the hydraulic oil tank and a front face of the engine cover are the same size in a widthwise direction. A rear end of an upper face of the hydraulic oil tank is positioned at the same height as a front end of the upper face of the engine cover. The upper face and side faces of the hydraulic oil tank are exposed to outside.

Abstract: For use in warming a rider on a motorcycle having a heat-producing engine, a portable heat transfer system and method of warmth. The system includes an air blower having an air inlet and an air outlet and being adapted to be positioned and secured preferably behind the engine in an area of heated air build-up beneath a rider seat where heat as a byproduct of engine operation accumulates. The air blower is connectable to an electric power source of the motorcycle to operate the air blower. An elongated flexible air transfer conduit is connectable at one end thereof to the air outlet of the air blower while an air outlet nozzle is connected to another end of the conduit. The outlet nozzle is adapted in size and shape to be inserted and held beneath a conventional upper torso garment worn by the rider whereby warmed air is drawn into the conduct from the area of heated air build-up by the air blower is discharged from the nozzle beneath the upper torso garment to warm the rider.

Abstract: A motor vehicle air cooling method and system in which electric fans are installed in the rear side of a motor vehicle to draw hot air out of the inside space of the motor vehicle so as to cause negative pressure in the motor vehicle for sucking outside cooling air into the inside of the motor vehicle to have the pressure inside the motor vehicle be in balance with the pressure outside the motor vehicle and to simultaneously lower the temperature in the motor vehicle after an air conditioner ventilation panel of the motor vehicle has been set in an outer loop status.

Abstract: A heat exchange apparatus has a housing, a first fan cooperative with the housing for drawing air through the housing, an air flow line extending within the housing, a second fan connected to the air flow line for drawing air along the air flow line, and a coolant tube extending in a helical pattern around in the air flow line. A conduit extends over and around the coolant tube and the air flow line. The second fan passes air in heat exchange relationship to the coolant tube interior of the conduit. The housing can be placed forwardly of an engine of a vehicle.

Abstract: An industrial truck includes a radiator (3), a cooling air line (4), and a filter (6) that is located in the vicinity of the cooling air line (4). A cleaning device that can be effectively connected with the filter (6) can be integrated into the cooling air line (4). The cleaning device has a wiper (9) that can be moved along the outside surface of the screen (6) and is equipped so that it can be engaged with a drive device and can be fastened to a lever arm in the form of a parallel arm (10).

Abstract: A cooling system for a marine propulsion device provides a closed portion of the cooling system which recirculates coolant through the engine block and cylinder head, the exhaust manifold, and the exhaust elbow. It provides a pressure relief cap connected to the exhaust elbow and a low velocity portion of the coolant jacket of the exhaust elbow to facilitate the release of gas and coolant when pressures exceed a preselected magnitude.

Abstract: A control valve for a fluid flow circuit comprises a body that has a fluid inlet and at least two fluid outlets (20, 22, 24) and that defines an axisymmetric housing for a modulating member capable of rotating about an axis of rotation (XX) and adopting different angular positions to control the distribution of the fluid through the outlets. The body comprises a side wall (16) into which the fluid outlets open. The side wall (16) and/or the modulating member comprises sunken areas (EV) and non-sunken areas (CR), the sunken areas (EV) serving to reduce the surface area of the modulating member (26) in contact with the side wall (16).

Abstract: A cooling system (100) for a motor vehicle includes a snorkel (102) positioned on the vehicle for collecting air while the vehicle is moving. An air duct (104) is coupled with the snorkel (102) on a first end and has an exhaust at a second end. A heat exchanger (106) is coupled with a component such as a transmission (108) of the vehicle and positioned within the duct (104) for cooling the component (108) with the air passing through the duct (104).

Abstract: The present invention aims to cool high tension electrical equipment efficiently with a small, lightweight device. The high tension electrical equipment cooling structure is provided for cooling batteries which supply electricity to the operating motor via an inverter, and the inverter using cooling air, and comprises an equipment box for guiding cooling air introduced from a cooling air inlet port into a cooling air outlet port, and a fan for introducing cooling air from the cooling air inlet port. A shutter that consists of an elastic material is disposed inside the intake duct. The shutter closes off the cooling air flow path, and when negative pressure is generated downstream of the shutter due to the operation of the fan, the shutter undergoes elastic deformation, and as a result, the cooling air flow path is opened.

Abstract: A machine includes a body having a cooling air inlet and a cooling air outlet, and having an engine compartment therein. A second compartment is positioned vertically above and fluidly connected with the engine compartment. At least one open-air operator station is positioned on a deck of the body, and a cooling system draws cooling air in a flow path through the engine compartment, into the second compartment and exhausts the cooling air in a forward direction away from the operator station.

Abstract: A work vehicle includes a frame and an axle assembly coupled to the frame, including a first axle shaft and coil substantially disposed in an axle housing. A first wheel couples to the first axle shaft of the axle assembly. An axle lubricating fluid is disposed within the axle housing. A cooling circuit fluidly coupled to the axle assembly circulates cooling fluid therethrough. The coil conducts cooling fluid through the first axle housing separately from the lubricating fluid. A cooling fluid circuit is selectively fluidly coupled to the first coil to circulate the cooling fluid therethrough.

Abstract: A work vehicle includes a frame and an axle assembly coupled to the frame, including a first axle shaft substantially disposed in an axle housing. A first wheel couples to the first axle shaft of the axle assembly. An axle lubricating fluid is disposed within the axle housing. A cooling circuit fluidly coupled to the axle assembly circulates cooling fluid therethrough. A hydraulic motor fluidly coupled to a fluid circuit includes a device disposed in parallel with the fluid circuit to discontinue operation of the motor in response to a predetermined pressure of at least one of the first and second circuit being exceeded.

Abstract: A heat exchanger including an inlet port, an outlet port, a header, a plurality of cooling tubes, and a thermal bypass valve integrated therein. The thermal bypass valve is located in the header and is configured to restrict the flow of fluid through the cooling tubes of the heat exchanger below a target fluid temperature. The thermal bypass valve includes a valve body that is movable between first and second operational modes to restrict and not restrict the flow of fluid.

Abstract: An exhaust heat recovery apparatus includes an evaporation unit, a condensation unit, an evaporation-side communication part and a condensation-side communication part. The evaporation unit is disposed in a duct member through which an exhaust gas generated from an engine flows, and evaporates an operation fluid by heat of the exhaust gas. The condensation unit is disposed in a coolant passage through which a coolant flows, and condenses the operation fluid by radiating the heat to the coolant. The evaporation-side communication part connects the evaporation unit and the condensation unit for introducing evaporated operation fluid to the condensation unit. The condensation-side communication part connects the condensation unit and the evaporation unit for introducing condensed operation fluid to the evaporation unit. The condensation-side communication part is in contact with an outer surface of the duct member at least at a part.

Abstract: The invention relates to a heat exchanger housing (1) for at least one heat exchanger for exchanging heat between a first fluid, in particular an exhaust gas or charge air, and a second fluid, in particular a coolant (6). According to the concept of the invention, a bypass duct (40) is integrated in the heat exchanger housing (1), with the housing having a housing body (10) with a chamber which is designed to be traversed by the second fluid and to hold a number of flow ducts which can be traversed by the first fluid; a bypass duct (40) which is designed to be traversed by the first fluid; with the chamber and the bypass duct (40) being formed in one piece with the housing body (10).

Abstract: A method for cooling an inverter of a vehicle system includes the steps of providing a flow of cooling fluid to the inverter, determining a value of a variable that is influenced at least in part by the flow of cooling fluid to the inverter, and regulating the flow of cooling fluid to the inverter based at least in part on the value of the variable.

Abstract: A keel cooler having a standard header with an internal beveled bottom wall, with orifices on the inner wall of the exterior tubes extending into the header, the orifices being in the natural flow path of the coolant flow. The orifices are sufficiently large so as not to restrict the flow of coolant. A fluid flow diverter is additionally provided in the header of the keel cooler for facilitating coolant flow towards both the interior tubes and also towards the exterior tubes.

Abstract: An evaporator includes a refrigerant flow section which is provided on the refrigerant outlet header section. Refrigerant fed from a condenser and not yet having passed through a pressure-reducing device flows through the refrigerant flow section. The refrigerant flow section is composed of a refrigerant flow pipe brazed to the outer surface of the refrigerant outlet header section. Heat exchange is effected between the refrigerant within the refrigerant outlet header section and the refrigerant flowing through the refrigerant flow section. This evaporator eliminates the necessity of adding extra components to a refrigeration cycle, reduces the installation space and cost of the refrigeration cycle, and improves the cooling performance thereof.

Abstract: An exhaust heat recovery apparatus includes an evaporator and a condenser. The evaporator and the condenser form an operation medium circuit such that an operation medium circulates through the evaporator and the condenser. The evaporator has tubes and is disposed in a duct part through which an exhaust gas generated from an engine flows. The condenser is disposed in a heated fluid circuit through which a heated fluid flows for heating the heated fluid by condensation of the operation medium. The heated fluid circuit is separate from an engine coolant circuit through which an engine coolant for cooling the engine flows. The evaporator further has a fin between the tubes. The fin is provided with an operation force reducing portion that is capable of reducing an operation force applied to the fin due to a thermal expansion difference between the tubes, which are exposed to the exhaust gas.

Abstract: The present invention provides an apparatus for cooling a hydrogen recirculation blower for a fuel cell vehicle the apparatus including: a blower housing including an inlet and an outlet for hydrogen recirculation provided in a front part thereof, and an impeller and a motor for driving the hydrogen recirculation blower provided therein; a cooling passage, through which hydrogen is supplied to the blower housing to provide heat exchange, provided to the blower housing; and a hydrogen supply line, through which hydrogen is supplied to the cooling passage to cool the motor, branched from a hydrogen supply pipe and connected to the blower housing, thereby improving cooling efficiency of the motor and ensuring stability of the fuel cell system.

Abstract: A duct for a vehicle includes an inlet fluidly coupled to an interior of the vehicle and an outlet fluidly coupled to the inlet. A buoyant closure member is disposed between the inlet and the outlet and is movable between an open position permitting flow between the inlet and the outlet and a closed position preventing flow between the inlet and the outlet. The buoyant closure member is normally in the open position and is movable from the open position to the closed position in response to a predetermined volume of water entering the outlet.