Abstract: Methods and apparatus for controlling the boiling temperature of a fluid within a heat pipe are disclosed. According to one aspect of the present invention, a method for controlling a temperature associated with a heat pipe that contains a fluid and has an evaporator end includes measuring the temperature associated with the heat pipe and determining when the temperature associated with the heat pipe is at a desired level. The method also includes changing a pressure within the heat pipe when it is determined that the temperature associated with the heat pipe is not at a desired level. Changing the pressure within the heat pipe causes the temperature associated with the heat pipe to change.

Abstract: A heat transfer device which employs a reciprocating mechanism for driving liquid from the heat rejection section to the heat receiving section is disclosed. The heat transfer device is coined as the reciprocating-mechanism driven heat loop which comprises a hollow loop having an interior flow passage, an amount of heat-carrying fluid filled within the loop, and at least one reciprocating driver. The hollow loop has at least one heat receiving section, one heat rejection section, and one liquid reservoir. The reciprocating driver is integrated with the liquid reservoir and facilitates a reciprocating flow of the heat-carrying fluid within the loop, so that the liquid is supplied from the heat rejection section to the heat receiving section under both saturated and unsaturated conditions and a high heat transfer rate from the heat receiving section to the heat rejection section is achieved.

Abstract: A heating unit having a heat pipe structure includes a heater and a cooling pipe disposed in an inner space of a holding table. The holding table and the cooling pipe are thermally insulated by a heat-insulating member, so that it is possible to prevent direct heat transfer from the cooling pipe to the holding table. Therefore, it is possible to rapidly perform a cooling processing while keeping the evenness of the temperature distribution of the mounting face and the temperature distribution of the substrate mounted on the mounting face, and consequently to appropriately keep the evenness of the film thickness and the line width of a wiring layer formed on the substrate upon heat processing.

Abstract: An air conditioning system has a plurality of heat pipes including an input coil at the input end of a chiller for the passage of input air there through and an output coil at the output end of a chiller for the passage of output air there through. Each of the heat pipes has a vapor leg and a liquid leg coupling the vapor coil and liquid coil for the flow of a working fluid there through. At least one back flow abater is in the liquid leg for controlling the back flow of the working fluid within the liquid leg.

Abstract: An air conditioning system comprising a plurality of heat pipes. Each of the heat pipes includes an input coil at the input end of a chiller for the passage of input air there through and an output coil at the output end of a chiller for the passage of output air there through. Each of the heat pipes also having an inlet leg and an outlet leg coupling an associated input coil and output coil for the flow of a working fluid there through. At least one valve for controlling the flow of the coolant within each heat pipes exists. A tube and shell heat exchanger transfers heat from a chiller fluid to an intermediate portion of the heat pipes.

Abstract: The present invention discloses a heat transfer changeover switch capable of effecting or cutting off positively heat transfer. The switch requires no contact or separation of a solid contact of a switch piece, is easily incorporated in a fine electronic device and generates no heat or vibration during a switch operation. The switch includes a heat pipe having a pipe for storing a heating medium therein disposed between a hot heat source and a cold heat source. A heating medium supplying/discharging device is provided for supplying/discharging the heating medium to and from the pipe. Heat transfer between the hot heat source and the cold heat source via the heat pipe is effected or cut off by using the heating medium supplying/discharging device that changes over between supply and discharge of the heating medium to and from the pipe.

Abstract: An object of the present invention is to heat a substrate at a uniform temperature all over its surface. The heat processing apparatus of the present invention comprises: a hot plate for putting the substrate on or near its surface; a ceiling with a first and second concentric regions with a first and second heat pipes, respectively, opposite to the hot plate surface; a surrounding member for surrounding a space between the hot plate and the ceiling; gas flow generation means for generating a gas flow in the space from a circumference of the hot plate to a center of the ceiling; and a temperature control mechanism for controlling a regional temperature of the first region. The temperature control mechanism controls the regional temperature in such a manner that a heat emission is greater from a center of the substrate than from a circumference of the substrate.

Abstract: An electronic device has a heat pipe containing a heat transfer fluid. The heat pipe has a first section and a second section. Inside the heat pipe is a valve disposed between the first section and second section of the heat pipe. The valve has an actuator that is used to regulate the flow of the heat transfer fluid between the first section and the second section of the heat pipe in response to a changed state detected by a sensor.

Abstract: Rapid cooling apparatus including a housing, a hot fluid coil disposed in the housing through which flows a product, a cooling liquid disposed in the housing which at least partially covers the hot fluid coil, and a condensing coil disposed in the housing through which flows a coolant, characterized by a reservoir in fluid communication with the cooling liquid in the interior of the housing, the reservoir being movable either towards the hot fluid coil and away from the condensing coil or towards the condensing coil and away from the hot fluid coil, so as to regulate a level of the cooling liquid which at least partially covers the hot fluid coil.

Abstract: Apparatus for controlling temperature within a housing (200) comprises a thermal storage device (102) for maintaining a controlled temperature within the housing, and a thermal transfer arrangement (104) for selectively transferring heat between the thermal storage device and the external environment so as to effect thermal storage in the storage device, the thermal storage device comprising a thermal storage medium which is in direct contact with the thermal transfer arrangement. A further aspect of the invention is disclosed, in which a plurality of thermal storage devices are provided, each one being separate from the other such devices.

Abstract: An electronic device has a heat pipe containing a heat transfer fluid. The heat pipe has a first section and a second section. Inside the heat pipe is a valve disposed between the first section and second section of the heat pipe. The valve has an actuator that is used to regulate the flow of the heat transfer fluid between the first section and the second section of the heat pipe in response to a changed state detected by a sensor.

Abstract: A sensing device for protecting a sensor from environmental conditions present in a turbine is provided. The sensing device comprises a heat pipe exposed to the environmental conditions for protecting the sensor from these conditions. The sensing device further comprises a sensor located in a center channel of the heat pipe and a working fluid located in an annulus of the heat pipe to aid in regulating heat along the length of the heat pipe. In alternate embodiments, the sensing device further comprises power wires extending from a power source outside the turbine to the sensor for supplying power to the sensor, and signal wires extending from the sensor to a data acquisition system outside the turbine for transmitting readings from the sensor to the data acquisition system.

Abstract: A vessel of a liquid pressure generating apparatus is divided into two vessels of an upper liquid pressure generating vessel containing therein a liquid chamber whose volume can be varied, and a lower medium vessel into which is filled a medium which varies between a gaseous state and a liquid state. Both the vessels are connected by a communicating passage. The two vessels are respectively provided with heating heat exchange portions into which is inputted an external heat such as a waste heat of a driving source of a vehicle. The medium vessel is also provided with a cooling heat exchange portion. By the inputting of heat and stopping thereof, the liquid pressure can be controlled with good response.

Abstract: A cogeneration system includes a gas engine generator acting as private power generating equipment for generating power to be supplied to private electricity consuming equipment, and a source-side heat exchanger connected to the gas engine generator through an exhaust heat recovery piping to act as a heat source. A heat medium is heated and evaporated through a heat exchange in the source-side heat exchanger. The resulting vapor is allowed to flow upward to be supplied to room heating heat exchangers. The vapor is liquefied through a heat exchange in the room heating heat exchangers. The resulting liquid is allowed to flow downward back to the source-side heat exchanger. This natural circulation of the heat medium is used for the heating purpose. Surplus exhaust heat is released through a generator to control the heat medium supplied to the room heating heat exchangers.

Abstract: A spacecraft equipment panel including heat pipes operable in a zero-gravity environment for cooling the equipment mounted to the panel is not operable in an Earth-gravity environment because the two-phase working fluid in the heat pipes tends to pool at the bottom of the heat pipe when the heat pipe is vertical. An apparatus and method for overcoming this condition employs infrared lamps positioned on a mounting frame to heat the bottoms of the heat pipes to vaporize the working fluid therein, whereby the heat pipes become operable for transporting heat while in a vertical orientation and under the influence of gravity.

Abstract: A cogeneration system includes a gas engine generator acting as private power generating equipment for generating power to be supplied to private electricity consuming equipment, and a source-side heat exchanger connected to the gas engine generator through an exhaust heat recovery piping to act as a heat source. A heat medium is heated and evaporated through a heat exchange in the source-side heat exchanger. The resulting vapor is allowed to flow upward to be supplied to room heating heat exchangers. The vapor is liquefied through a heat exchange in the room heating heat exchangers. The resulting liquid is allowed to flow downward back to the source-side heat exchanger. This natural circulation of the heat medium is used for the heating purpose. Surplus exhaust heat is released through a generator to control the heat medium supplied to the room heating heat exchangers.

Abstract: A thermal control system for use with a burn-in system, the thermal control system capable of delivering a thermally preconditioned liquid to a plurality of semiconductor devices during burn-in. The thermal control system comprises a liquid reservoir containing a liquid, a pump, and a plurality of spray nozzle arrays. The liquid contained in the liquid reservoir is thermally preconditioned through the use of a heating element and a cooling element and the temperature of the liquid provided to each spray nozzle array is individually controlled through the use of a pipe heating element. The liquid is collected and returned to the liquid reservoir after being sprayed on the semiconductor devices.