Patent application number | Description | Published |
20100237723 | SYSTEM AND METHOD FOR THERMAL MANAGEMENT IN ELECTRICAL MACHINES - A cooling system for an electrical machine is provided. The cooling system includes at least one baffle enclosing multiple endwindings, wherein the at least one baffle is configured to guide a cooling fluid flow to multiple regions of interest in the machine. | 09-23-2010 |
20100294467 | HIGH PERFORMANCE HEAT TRANSFER DEVICE, METHODS OF MANUFACTURE THEREOF AND ARTICLES COMPRISING THE SAME - Disclosed herein is an heat transfer device that includes a shell; the shell being an enclosure that prevents matter from within the shell from being exchanged with matter outside the shell; the shell having an outer surface and an inner surface; and a particle layer disposed on the inner surface of the shell; the particle layer having a thickness effective to enclose a region for transferring a fluid between opposing faces; the particle layer including a first layer and a second layer; the second layer being disposed upon the first layer; the first layer having average particle sizes of about 10 to about 10,000,000 nanometers; the second layer having average particle sizes of about 10 to about 10,000 nanometers. | 11-25-2010 |
20100294475 | HIGH PERFORMANCE HEAT TRANSFER DEVICE, METHODS OF MANUFACTURE THEREOF AND ARTICLES COMPRISING THE SAME - Disclosed herein is an heat transfer device comprising a shell; the shell being an enclosure that prevents matter from within the shell from being exchanged with matter outside the shell; the shell having an outer surface and an inner surface; and a porous layer disposed on the inner surface of the shell; the porous layer having a thickness effective to enclose a region between opposing faces; the region providing a passage for the transport of a fluid; the porous layer having a thermal conductivity of about 0.1 to about 2000 watts per meter-Kelvin and a mass flow rate of about 10 | 11-25-2010 |
20100328896 | ARTICLE INCLUDING THERMAL INTERFACE ELEMENT AND METHOD OF PREPARATION - An article and method of forming the article is disclosed. The article includes a heat source, a heat-sink, and a thermal interface element having a plurality of freestanding nanosprings, a top layer, and a bottom layer. The nanosprings, top layer, and the bottom layers of the article include at least one inorganic material. The article can be prepared using a number of methods including the methods such as GLAD and electrochemical deposition. | 12-30-2010 |
20110221288 | SYSTEM AND METHOD FOR COOLING IN ELECTRIC MACHINES - A segmented cooling system for an electric machine is provided. The segmented cooling system includes multiple cooling subsystems coupled to respective multiple stator segments in the electric machine, wherein the multiple cooling subsystems directs fluid flow towards one or more regions of interest within the respective multiple stator segments. | 09-15-2011 |
20110292613 | LOCKING DEVICE AND METHOD FOR MAKING THE SAME - A locking device providing thermal management for an electrical assembly board is described and includes a fluid-permeable member saturated with a fluid and disposed between the electrical assembly board and a heat sink; a pair of locking device substrates substantially orthogonal to the electrical assembly board and the heat sink; and an actuator coupled to at least one of the locking device substrates. The fluid-permeable member is disposed between the locking device substrates. The actuator is configured to compress the fluid-permeable member by at least one of the locking device substrates forcing a portion of the fluid out of the fluid-permeable member and forming at least one fluid contact interface with the electrical assembly board and the heat sink in a reversible process. A method for making a locking device is also described. | 12-01-2011 |
20130002064 | ELECTRICAL MACHINE - An apparatus, such as an electrical machine, is provided. The apparatus can include a rotor defining a rotor bore and a conduit disposed in and extending axially along the rotor bore. The conduit can have an annular conduit body defining a plurality of orifices disposed axially along the conduit and extending through the conduit body. The rotor can have an inner wall that at least partially defines the rotor bore. The orifices can extend through the conduit body along respective orifice directions, and the rotor and conduit can be configured to provide a line of sight along the orifice direction from the respective orifices to the inner wall. | 01-03-2013 |
20130079229 | CRYOGENIC COOLING SYSTEM WITH WICKING STRUCTURE - A cryogenic cooling system includes a chamber defined by an outer wall and an inner wall, the chamber housing at least one component to be cooled; a wicking structure in thermal contact with one of the outer wall and the inner wall of the chamber; and a delivery system in a spaced apart relationship with the chamber and fluidly connected to the wicking structure for transporting a working fluid to and from the wicking structure. Also provided is a magnetic resonance imaging system including the cryogenic cooling system. | 03-28-2013 |
20130160457 | SYSTEM AND METHOD FOR IMPROVED COMBUSTOR TEMPERATURE UNIFORMITY - A combustor and a method for reducing a temperature gradient of a combustor component are provided. The combustor includes a coating applied to at least a portion thereof with the coating serving to alter the emissivity of the at least a portion to which it is applied. The method includes applying a coating on at least one of a combustor liner and a flow sleeve, wherein the coating alters the emissivity exhibited where applied. | 06-27-2013 |
20130170142 | HEAT EXCHANGE ASSEMBLY FOR USE WITH ELECTRICAL DEVICES AND METHODS OF ASSEMBLING AN ELECTRICAL DEVICE - An electrical device is described herein. The electrical device includes a housing that includes an inner surface that defines a cavity, a heat sink that is coupled to the housing and oriented along a first plane, and at least one electrical component positioned within the housing cavity and oriented along a second plane that is different than the first plane. A heat exchange assembly is coupled to the electrical component and the heat sink for adjusting a temperature of the electrical component. The heat exchange assembly includes an evaporator section, a condenser section, and a transport section extending between the evaporator section and the condenser section for channeling a working fluid between the evaporator section and the condenser section. The heat exchange assembly is configured to bend along at least one bending axis oriented with respect to the transport section. | 07-04-2013 |
20140034270 | Systems and Methods for Dissipating Heat in an Enclosure - An enclosure is presented. The enclosure includes an outer casing having one or more walls. Further, the enclosure includes a synthetic jet assembly configured to dissipate heat from the one or more walls, where the synthetic jet assembly includes a bracket operatively coupled to the one or more walls of the outer casing and two or more synthetic jets operatively coupled to the bracket, where the two or more synthetic jets are arranged in a multi-dimensional array. | 02-06-2014 |
20140043764 | ELECTRONIC DEVICE COOLING WITH AUTONOMOUS FLUID ROUTING AND METHOD OF ASSEMBLY - An integrated circuit device is provided. The integrated circuit device includes a die having a first surface and a second surface opposite the first surface. The die has at least one circuit element positioned on its first surface. At least one micro-channel is defined in the second surface of the die. The integrated circuit device includes a cooling substrate attached to the second surface of the die. At least one fluid routing channel is defined in the cooling substrate. The at least one fluid routing channel is connected to the at least one micro-channel defined in the die. Additionally, the cooling substrate has at least one valve positioned within the at least one fluid routing channel. The at least one valve is configured to autonomously regulate a flow rate of a cooling fluid flowing through the at least one fluid routing channel. | 02-13-2014 |
20140049970 | MULTI-FUNCTION SYNTHETIC JET AND METHOD OF MANUFACTURING SAME - A synthetic jet assembly includes a synthetic jet having a cavity and an opening formed therein. The synthetic jet assembly also includes an actuator element coupled to a second surface of the body to selectively cause displacement of the second surface, and a control unit electrically coupled to the actuator element. The control unit is configured to transmit a multi-frequency drive signal to the actuator element, the multi-frequency drive signal comprising a cooling frequency component and an acoustic frequency component superimposed on the cooling frequency component. The cooling frequency component causes a cooling jet to eject from the opening of the body. The acoustic frequency component produces a desired audible output. | 02-20-2014 |
20140160677 | ELECTRONIC DEVICE COOLING WITH MICROJET IMPINGEMENT AND METHOD OF ASSEMBLY - An integrated circuit device including a die with a substrate with a first surface and a second surface opposite the first surface is provided. The die includes at least one circuit element positioned on the first surface. Formed on the second surface, is a wetting feature that includes an array of spaced-apart nanoscale structures and/or an array of spaced-apart microscale structures. The wetting feature also includes a wettability coating applied to at least a portion of the second surface. The integrated circuit device includes a spacer coupled to the die adjacent to the second surface. In addition, an injector plate is coupled to the spacer. The injector plate includes at least one microjet and at least one exit hole defined through the injector plate. The at least one exit hole is positioned adjacent to the at least one microjet. | 06-12-2014 |
20140263725 | SYNTHETIC JET SUSPENSION STRUCTURE - A system and method for providing vibration dampening between a synthetic jet and stationary mounting bracket is disclosed. A synthetic jet assembly includes a synthetic jet having a first plate, a second plate spaced apart from the first plate, a spacer element positioned between the first and second plates to maintain the first and second plates in a spaced apart relationship, the spacer element including an orifice formed therein, and an actuator element coupled to at least one of the first and second plates to selectively cause deflection thereof such that a fluid flow is generated and projected out from the orifice. The synthetic jet assembly also includes a mounting bracket positioned about the synthetic jet to support the synthetic jet and a plurality of suspension tabs coupling the synthetic jet to the mounting bracket in a suspended arrangement. | 09-18-2014 |
20140263726 | LOW RESONANCE SYNTHETIC JET STRUCTURE - A system and method for achieving lower acoustic output and increased flow output in a synthetic jet device is disclosed. A synthetic jet sub-assembly includes a mounting bracket comprising a top surface and a bottom surface, a first flexible substrate positioned across an opening defined by the mounting bracket and attached to the top surface of the mounting bracket, a second flexible substrate positioned across the opening defined by the mounting bracket and attached to the bottom surface of the mounting bracket, a first plate affixed to an outward facing surface of the first flexible substrate and a second plate affixed to an outward facing surface of the second flexible substrate. | 09-18-2014 |
20140263728 | LOW RESONANCE ACOUSTIC SYNTHETIC JET STRUCTURE - A system and method for reducing or increasing the mechanical structure resonance of a synthetic jet device is disclosed. A synthetic jet device includes a first plate, a second plate spaced apart from the first plate, a spacing component coupled to and positioned between the first and second plates to form a chamber and including an orifice therein, and an actuator element coupled to at least one of the first and second plates to selectively cause deflection thereof, thereby changing a volume within the chamber so that a series of fluid vortices is generated and projected out from the orifice of the spacing component. At least one of the first and second plates includes a modified section that alters a mechanical resonance of the synthetic jet device, so as to control a level of acoustic noise generated by the synthetic jet device. | 09-18-2014 |
20140271277 | SYNTHETIC JET WITH NON-METALLIC BLADE STRUCTURE - A system and method for lowering resonant frequency in a synthetic jet device for less noise, as well as lowering vibration, is disclosed. A synthetic jet device includes a first plate, a second plate spaced apart from the first plate, a spacing component coupled to and positioned between the first and second plates to form a chamber and including an orifice therein, and an actuator element coupled to at least one of the first or second plates to selectively cause deflection thereof, wherein the first and second plates are formed at least in part of a non-metallic material. | 09-18-2014 |
20150041104 | SYSTEMS AND METHODS FOR ROBUST AND MODULAR SYNTHETIC JET COOLING - A modular synthetic cooling jet apparatus for cooling at least one electronic component and including a first synthetic cooling jet is provided. The first synthetic cooling jet includes a first piezoelectric element, and a first pair of plates coupled to the first piezoelectric element. The first pair of plates includes a first top plate and a first bottom plate. The first synthetic cooling jet also includes a first air gap defined between the first top plate and the first bottom plate. The first flex circuit is coupled to the first piezoelectric element. The first flex circuit is configured to be coupled to an electrical power source and to transmit a first electrical signal to the first piezoelectric element. The first piezoelectric element is configured to actuate at least one of the first top plate and the first bottom plate to induce a first expelling air stream. | 02-12-2015 |
20150068703 | THERMAL MANAGEMENT SYSTEM AND METHOD OF ASSEMBLING THE SAME - A thermal management system for cooling a heat source onboard an aircraft that has a frame and a skin coupled to the frame such that the skin has a first segment and a second segment includes a first network of heat pipes coupled in conductive heat transfer with the heat source and the first segment of skin. The first network of heat pipes is configured to heat the first segment of skin using heat from the heat source. The thermal management system further includes a second network of heat pipes coupled in conductive heat transfer with the heat source and the second segment of skin. The second network of heat pipes is configured to heat the second segment of skin using heat from the heat source. The thermal management system is configured to selectively deactivate the first network of heat pipes and the second network of heat pipes. | 03-12-2015 |
20150077934 | SYSTEMS AND METHODS FOR DISSIPATING HEAT IN AN ENCLOSURE - An enclosure is presented. The enclosure includes an outer casing having one or more walls. Further, the enclosure includes a synthetic jet assembly configured to dissipate heat from the one or more walls, where the synthetic jet assembly includes a bracket operatively coupled to the one or more walls of the outer casing and two or more synthetic jets operatively coupled to the bracket, where the two or more synthetic jets are arranged in a multi-dimensional array. | 03-19-2015 |