2878 results about "Coolant flow" patented technology

A cell necrosis apparatus for delivering thermal microwave energy to a specific site in a body, including: a. a microwave generator, b. a coolant delivery system for delivering and circulating a quantity of cooled liquid coolant via inlet and return passageways, c. a probe including a probe handle and a probe body having a proximal portion coupled to the probe handle and a distal portion, d. a microwave antenna in the distal portion of the probe body for applying thermal microwave energy to a specific site in cell necrosis treatment, and e. a microwave transmission line extending from the microwave generator to and through the probe handle and to and through the probe body to the microwave antenna and electrically coupled thereto, where the inlet and return coolant flow passageways extend from the coolant delivery system to and through the probe handle and thence extend coaxially about the microwave transmission line and along the length thereof within the probe body, and extend coaxially about the antenna and long the length thereof within the probe body, and where a first of the inlet and return coolant flow passageways is radially outward of and immediately adjacent the microwave transmission line and the antenna within the probe body and the other of the inlet flow passageways is radially outward of the first flow passageway.

A cooling system is provided employing multiple coolant conditioning units (CCUs). Each CCU, which is coupled to a different, associated electronics rack of multiple electronics racks to be cooled, includes a heat exchanger, a first cooling loop with a control valve, and a second cooling loop. The first cooling loop receives chilled facility coolant from a source and passes at least a portion thereof via the control valve through the heat exchanger. The second cooling loop provides cooled system coolant to the associated electronics rack, and expels heat in the heat exchanger from the electronics rack to the chilled facility coolant in the first cooling loop. The control valve allows regulation of the facility coolant flow through the heat exchanger, thereby allowing independent control of temperature of the system coolant in the second cooling loop. Various CCU and associated component redundancies of the cooling system are also provided.

A cooling apparatus for an electronics assembly having a substrate and one or more electronics devices includes an enclosure sealably engaging the substrate to form a cavity, with the electronics devices and a heat exchange assembly being disposed within the cavity. The heat exchange assembly defines a primary coolant flow path and a separate, secondary coolant flow path. The primary coolant flow path includes first and second chambers in fluid communication, and the secondary flow path includes a third chamber disposed between the first and second chambers. The heat exchange assembly provides a first thermal conduction path between primary coolant in the first chamber and secondary coolant in the third chamber, and a second thermal conduction path between primary coolant in the second chamber and secondary coolant in the third chamber. The heat exchange assembly further includes coolant nozzles to direct primary coolant towards the electronics devices.

A cooling apparatus for semiconductor chips includes radiation fins formed on the opposite surface of metal base opposite to the surface of metal base, to which an insulator base board mounting semiconductor chips thereon, is disposed. The radiation fins, such as sheet-shaped fins having different lengths are arranged such that the surface area density of the fins becomes higher in the coolant flow direction, whereby the surface area density is the total surface area of radiation fins on a unit surface area of the metal base. As a result, the temperatures of semiconductor chips arranged along the coolant flow direction are closer to each other.

A cooling apparatus for an electronics assembly having a substrate and one or more electronics devices includes an enclosure sealably engaging the substrate to form a cavity, with the electronics devices and a heat exchange assembly being disposed within the cavity. The heat exchange assembly defines a primary coolant flow path and a separate, secondary coolant flow path. The primary coolant flow path includes first and second chambers in fluid communication, and the secondary flow path includes a third chamber disposed between the first and second chambers. The heat exchange assembly provides a first thermal conduction path between primary coolant in the first chamber and secondary coolant in the third chamber, and a second thermal conduction path between primary coolant in the second chamber and secondary coolant in the third chamber. The heat exchange assembly further includes coolant nozzles to direct primary coolant towards the electronics devices.

The present invention provides a system for controlling the climate of a hybrid vehicle. The system includes a thermoelectric module, a heat exchanger, a pump, and a valve. The thermoelectric module includes thermoelectric elements powered by electric energy. The thermoelectric elements emit or absorb heat energy based on the polarity of the electrical energy provided. A tube containing coolant runs proximate the thermoelectric elements. To aid in the transfer of heat energy, a blower is provided to generate an air flow across the thermoelectric elements and the tube. The coolant is provided from the thermoelectric module to a heat exchanger that heats or cools the air flow provided to the cabin of the vehicle. The pump and valve are in fluid communication with the heat exchanger and thermoelectric module. The pump pressurizes the coolant flow through the tube and coolant lines. In a cooling mode, the valve is configured to selectively bypass the engine coolant system of the vehicle.

A coolant flow drive apparatus is provided for facilitating removal of heat from a cooling structure coupled to a heat generating electronics component. The coolant flow drive apparatus includes a turbine in fluid communication with a primary coolant flowing within a primary coolant flow loop, and a pump in fluid communication with a secondary coolant within a secondary coolant flow path. The secondary fluid flow path is separate from the primary coolant flow path. The flow drive apparatus further includes a magnetic coupling between the turbine and the pump, wherein the turbine drives the pump through the magnetic coupling to pump secondary coolant through the secondary coolant flow path.

A cooling system has a diverter valve to selectively control the flow of coolant through an internal combustion engine having a cylinder block with a cooling jacket and a cylinder head mounted on the block with a cooling jacket. A controller, responsive to the temperature of the block and the head, controls the diverter valve and a water pump to provide adequate coolant flow through the head and the block as needed to maintain optimal operating temperatures. After the engine is shut off, the controller continues to operate the water pump and a cooling fan to continue to cool the engine for a period of time.

An arrangement having a cooling function is provided, comprising a circuit board, a plurality of heat generating devices attached to the circuit board, a cooling device thermally connected to one of the plurality of electronic devices, and a coolant plate. An example of the arrangement can include a source of pressurized coolant fluid connected to the coolant plate and adapted to cause the coolant fluid to be transferred between the coolant plate and the cooling device. In addition or alternatively, the arrangement can include a plurality of flexible conduits and an adjustment device adapted to selectively adjust he height of the cooling device. In addition or alternatively, a cooling apparatus within a cooling arrangement can comprise a cooling device, a coolant plate, and a coolant pathway including a first passage formed in the coolant plate and a second passage formed in the cooling device.

A method of starting up at a subzero temperature a solid polymer electrolyte fuel cell stack that is formed by stacking a plurality of layers of separators and membrane electrode assemblies having a solid polymer electrolyte membrane and electrodes. The method includes a step of using a solid polymer electrolyte fuel cell stack in which the separators are made from metal and have a cross-sectional waveform structure, and a space that is formed between at least a portion of the separators and separators that are placed adjacent to this portion of the separators is used as a coolant flow passage.

Apparatus and methods are provided for microchannel cooling of electronic devices such as IC chips, which enable efficient and low operating pressure microchannel cooling of high power density electronic devices. Apparatus for microchannel cooling include integrated microchannel heat sink devices and fluid distribution manifold structures that are designed to provide uniform flow and distribution of coolant fluid and minimize pressure drops along coolant flow paths.

An air conditioning apparatus comprises an air-conditioning unit including at least a cooling coil as a heat exchanger, a blower, a chiller, and a coolant pump for conducting air-conditioning, wherein the coolant pump pumps the coolant cooled by the chiller to the cooling coil, the cooling coil cools the air through heat exchange of the coolant and the air, the blower supplies the cooled air into a room. Coolant temperature of the chiller, the coolant flow rate of the coolant pump, and the air flow rate of the blower are calculated in accordance with the set points of the indoor temperature and the indoor humidity, and the chiller, coolant pump, and blower are controlled on the basis of the arithmetic calculation results. Thereby, the indoor temperature and indoor humidity are independently controlled in the central air-conditioning system.

Included are a ring-shaped stator and a ring-shaped rotor arranged inside the stator; the stator includes a stator core with armature windings; the rotor includes a rotor core in which a plurality of permanent magnets are inserted and cooling holes are formed, a coolant flowing in each of the cooling holes; and each of the cooling holes is formed so as to have a sectional view which is a convex toward the outer periphery thereof.

A hydrogen storage apparatus that includes multiple gas storage tanks that each house a storing / adsorbing material and through the interior of which a fluid travels is provided. The gas storage apparatus 10 includes roughly cylindrical gas storage tanks 20 that house hydrogen-storing alloy. The multiple gas storage tanks 20 are disposed longitudinally parallel to each other in an ordered fashion such that roughly triangular prism-shaped empty spaces are formed between multiple adjacent hydrogen storage tanks 20. Coolant paths through which coolant flows are formed in these roughly triangular prism-shaped empty spaces. These coolant paths are thermally connected to the hydrogen-storing alloy in the gas storage tanks 20 via constituent members of the gas storage tanks 20 and via heat transfer plates 28 disposed on the gas storage tanks 20.