Patents by Inventor Nicholas Andrew KEEHN
Nicholas Andrew KEEHN has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240147663Abstract: A liquid-submersible thermal management system includes a cylindrical outer shell and an inner shell positioned in an interior volume of the outer shell. The cylindrical outer shell has a longitudinal axis oriented vertically relative to a direction of gravity, and the inner shell defines an immersion chamber. The liquid-submersible thermal management system a spine positioned inside the immersion chamber and oriented at least partially in a direction of the longitudinal axis with a heat-generating component located in the immersion chamber. A working fluid is positioned in the immersion chamber and at least partially surrounding the heat-generating component. The working fluid receives heat from the heat-generating component.Type: ApplicationFiled: January 11, 2024Publication date: May 2, 2024Applicant: Microsoft Technology Licensing, LLCInventors: Husam Atallah ALISSA, Ioannis MANOUSAKIS, Nicholas Andrew KEEHN, Eric C. PETERSON, Bharath RAMAKRISHNAN, Christian L. BELADY, Ricardo Gouvea BIANCHINI
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Publication number: 20240130091Abstract: Techniques for mitigating loss of vaporized working fluid in a two-phase immersion cooling system may be implemented using one or more supplemental condensers that facilitate condensation of vaporized working fluid when the immersion tank is open, and one or more vapor collection points that are in fluid communication with at least one supplemental condenser. One or more fluid displacement devices may be configured to create suction pressure at the one or more vapor collection points. One or more vents may be positioned in the door. The one or more vents may be configured to permit movement of air from outside the immersion tank into an interior portion of the immersion tank without permitting loss of vaporized working fluid. A directional blowing device may be configured to blow a gaseous substance against a computing device in a downward direction as the computing device is being pulled upward out of the immersion tank.Type: ApplicationFiled: December 26, 2023Publication date: April 18, 2024Inventors: Nicholas Andrew KEEHN, Ioannis MANOUSAKIS, Winston Allen SAUNDERS, Husam Atallah ALISSA, Eric Clarence PETERSON
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Patent number: 11956930Abstract: A liquid-submersible thermal management system includes a shell, a heat-generating component, a working fluid, and at least one heat-dispersing element. The shell defines an immersion chamber where the heat-generating component is located in the immersion chamber. The working fluid is positioned in the immersion chamber and at least partially surrounds the heat-generating component so the working fluid receives heat from the heat-generating component. The at least one heat-dispersing element is positioned on exterior surface of the shell to conduct heat from the shell into the heat-dispersing element.Type: GrantFiled: December 19, 2022Date of Patent: April 9, 2024Assignee: Microsoft Technology Licensing, LLCInventors: Husam Atallah Alissa, Ioannis Manousakis, Nicholas Andrew Keehn, Eric C. Peterson, Bharath Ramakrishnan, Christian L. Belady, Ricardo Gouvea Bianchini
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Publication number: 20240107716Abstract: A thermal management system includes a high-pressure (HP) container, a low-pressure (LP) container in fluid communication with the HP container and having a fluid pressure less than the HP container, and a two-phase working fluid partially in the HP container and partially in the LP container. The two-phase working fluid has a vapor phase and a liquid phase. A pump is configured to move the working fluid through the system, and a condenser is configured to condense the vapor phase of the working fluid into the liquid phase.Type: ApplicationFiled: September 27, 2022Publication date: March 28, 2024Inventors: Ehsan NASR AZADANI, Bharath RAMAKRISHNAN, Nicholas Andrew KEEHN, Husam Atallah ALISSA, Ruslan NAGIMOV, Eric C. PETERSON
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Patent number: 11910567Abstract: A liquid-submersible thermal management system includes a cylindrical outer shell and an inner shell positioned in an interior volume of the outer shell. The cylindrical outer shell has a longitudinal axis oriented vertically relative to a direction of gravity, and the inner shell defines an immersion chamber. The liquid-submersible thermal management system a spine positioned inside the immersion chamber and oriented at least partially in a direction of the longitudinal axis with a heat-generating component located in the immersion chamber. A working fluid is positioned in the immersion chamber and at least partially surrounding the heat-generating component. The working fluid receives heat from the heat-generating component.Type: GrantFiled: March 13, 2023Date of Patent: February 20, 2024Assignee: Microsoft Technology Licensing, LLCInventors: Husam Atallah Alissa, Ioannis Manousakis, Nicholas Andrew Keehn, Eric C. Peterson, Bharath Ramakrishnan, Christian L. Belady, Ricardo Gouvea Bianchini
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Patent number: 11903172Abstract: Techniques for mitigating loss of vaporized working fluid in a two-phase immersion cooling system may be implemented using one or more supplemental condensers that facilitate condensation of vaporized working fluid when the immersion tank is open, and one or more vapor collection points that are in fluid communication with at least one supplemental condenser. One or more fluid displacement devices may be configured to create suction pressure at the one or more vapor collection points. One or more vents may be positioned in the door. The one or more vents may be configured to permit movement of air from outside the immersion tank into an interior portion of the immersion tank without permitting loss of vaporized working fluid. A directional blowing device may be configured to blow a gaseous substance against a computing device in a downward direction as the computing device is being pulled upward out of the immersion tank.Type: GrantFiled: August 23, 2019Date of Patent: February 13, 2024Assignee: Microsoft Technology Licensing, LLCInventors: Nicholas Andrew Keehn, Ioannis Manousakis, Winston Allen Saunders, Husam Atallah Alissa, Eric Clarence Peterson
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Publication number: 20230345673Abstract: A thermal management device includes a wicking heat spreader and a boiling enhancement surface feature positioned on at least one interior surface of the wicking heat spreader.Type: ApplicationFiled: April 20, 2022Publication date: October 26, 2023Inventors: Dennis TRIEU, Ioannis MANOUSAKIS, Nicholas Andrew KEEHN, Husam Atallah ALISSA, Bharath RAMAKRISHNAN, Kathryn M. OSEEN-SENDA, Douglas Patrick KELLEY, Alexis Grace SCHUBERT
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Publication number: 20230341910Abstract: A processor includes a first die, a second die connected to the first die with a microfluidic volume positioned between the first die and the second die, a wicking heat spreader positioned in the microfluidic volume; and a boiling enhancement surface feature positioned on at least one surface of the wicking heat spreader.Type: ApplicationFiled: April 20, 2022Publication date: October 26, 2023Inventors: Bharath RAMAKRISHNAN, Husam Atallah ALISSA, Eric C. PETERSON, Christian L. BELADY, Dennis TRIEU, Ioannis MANOUSAKIS, Nicholas Andrew KEEHN, Kathryn M. OSEEN-SENDA, Douglas Patrick KELLEY
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Publication number: 20230337396Abstract: An immersion cooling system includes an immersion tank that is configured to retain dielectric working fluid and to hold a plurality of computing devices submerged in the dielectric working fluid. The immersion cooling system also includes a condenser that is configured to cause condensation of vaporized working fluid. The immersion cooling system also includes a subcooling heat exchanger that is in fluid communication with a coolant source. The coolant source provides coolant having a coolant temperature that is lower than a boiling point of the dielectric working fluid. The subcooling heat exchanger is positioned so that heat transfer can occur between the dielectric working fluid and the subcooling heat exchanger. The immersion cooling system also includes a control system that controls how much of the coolant flows into the subcooling heat exchanger based at least in part on a temperature of the dielectric working fluid.Type: ApplicationFiled: June 22, 2023Publication date: October 19, 2023Inventors: Husam Atallah ALISSA, Bharath RAMAKRISHNAN, Ioannis MANOUSAKIS, Nicholas Andrew KEEHN, Eric Clarence PETERSON
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Patent number: 11729948Abstract: An immersion cooling system includes an immersion tank that is configured to retain dielectric working fluid and to hold a plurality of computing devices submerged in the dielectric working fluid. The immersion cooling system also includes a condenser that is configured to cause condensation of vaporized working fluid. The immersion cooling system also includes a subcooling heat exchanger that is in fluid communication with a coolant source. The coolant source provides coolant having a coolant temperature that is lower than a boiling point of the dielectric working fluid. The subcooling heat exchanger is positioned so that heat transfer can occur between the dielectric working fluid and the subcooling heat exchanger. The immersion cooling system also includes a control system that controls how much of the coolant flows into the subcooling heat exchanger based at least in part on a temperature of the dielectric working fluid.Type: GrantFiled: May 13, 2021Date of Patent: August 15, 2023Assignee: Microsoft Technology Licensing, LLCInventors: Husam Atallah Alissa, Bharath Ramakrishnan, Ioannis Manousakis, Nicholas Andrew Keehn, Eric Clarence Peterson
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Publication number: 20230232584Abstract: A thermal management system includes a boiler tank and at least one heat-generating component positioned in the boiler tank. The boiler tank is in fluid communication with a vapor return line and a liquid return line. A condenser is in fluid communication with the vapor return line and the liquid return line. The condenser is positioned between vapor return line and the liquid return line in the fluid communication.Type: ApplicationFiled: June 10, 2021Publication date: July 20, 2023Inventors: Ioannis MANOUSAKIS, Eric Clarence PETERSON, Husam Atallah ALISSA, Nicholas Andrew KEEHN
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Publication number: 20230232583Abstract: A system for thermal management of a computing device includes an immersion chamber, a cooling fluid, a plurality of heat-generating components, and a means for removing vapor from a cooling volume of the cooling fluid. The cooling fluid is positioned in the immersion chamber and fills at least a portion of the immersion chamber. The plurality of heat-generating components is positioned in the cooling fluid and arranged in a series. The series defines the cooling volume of the cooling fluid contacting the plurality of heat-generating components to cool the plurality of heat-generating components.Type: ApplicationFiled: May 13, 2021Publication date: July 20, 2023Inventors: Ioannis MANOUSAKIS, Nicholas Andrew KEEHN, Husam Atallah ALISSA
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Publication number: 20230225079Abstract: A liquid-submersible thermal management system includes a cylindrical outer shell and an inner shell positioned in an interior volume of the outer shell. The cylindrical outer shell has a longitudinal axis oriented vertically relative to a direction of gravity, and the inner shell defines an immersion chamber. The liquid-submersible thermal management system a spine positioned inside the immersion chamber and oriented at least partially in a direction of the longitudinal axis with a heat-generating component located in the immersion chamber. A working fluid is positioned in the immersion chamber and at least partially surrounding the heat-generating component. The working fluid receives heat from the heat-generating component.Type: ApplicationFiled: March 13, 2023Publication date: July 13, 2023Inventors: Husam Atallah ALISSA, Ioannis MANOUSAKIS, Nicholas Andrew KEEHN, Eric C. PETERSON, Bharath RAMAKRISHNAN, Christian L. BELADY, Ricardo Gouvea BIANCHINI
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Publication number: 20230217626Abstract: Fluid replacement structures used in immersion cooling tanks can include various enhancements to make them functional beyond simply taking up space. For example, the density of fluid replacement structures can be variable to assist with buoyancy control. As another example, fluid replacement structures can be designed to enable vaporized working fluid to be directed to a desired location. As another example, fluid replacement structures can include emergency cooling features, such as different substances that cause an endothermic reaction to occur when they are mixed together. The substances can be separated by a membrane that melts when the temperature reaches a certain point. As another example, a fluid replacement structure can provide structural support for an immersion cooling tank when negative pressure operations are performed. Fluid replacement structures can also include alignment features, lifting features, locking features, mating guides, fiducial markers, or the like.Type: ApplicationFiled: December 30, 2021Publication date: July 6, 2023Inventors: Nicholas Andrew KEEHN, Husam Atallah ALISSA, Bharath RAMAKRISHNAN, Martha Geoghegan PETERSON, Eric Clarence PETERSON
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Publication number: 20230209773Abstract: An immersion cooling system includes an immersion tank, a first fluid reservoir, a second fluid reservoir, and a mixing device. The first fluid reservoir contains a first working fluid having a first boiling temperature. The second fluid reservoir contains a second working fluid having a second boiling temperature. The mixing device mixes at least a portion of the first working fluid and at least a portion of the second working fluid into a mixed working fluid, and the mixing device directs the mixed working fluid to the immersion tank.Type: ApplicationFiled: December 29, 2021Publication date: June 29, 2023Inventors: Husam Atallah ALISSA, Ioannis MANOUSAKIS, Nicholas Andrew KEEHN
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Publication number: 20230200026Abstract: A liquid-submersible thermal management system includes a shell, a heat-generating component, a working fluid, and at least one heat-dispersing element. The shell defines an immersion chamber where the heat-generating component is located in the immersion chamber. The working fluid is positioned in the immersion chamber and at least partially surrounds the heat-generating component so the working fluid receives heat from the heat-generating component. The at least one heat-dispersing element is positioned on exterior surface of the shell to conduct heat from the shell into the heat-dispersing element.Type: ApplicationFiled: December 19, 2022Publication date: June 22, 2023Inventors: Husam Atallah ALISSA, Ioannis MANOUSAKIS, Nicholas Andrew KEEHN, Eric C. PETERSON, Bharath RAMAKRISHNAN, Christian L. BELADY, Ricardo Gouvea BIANCHINI
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Publication number: 20230156960Abstract: A method of thermal management of a computing device includes immersing a first electronic component of the computing device in a first working fluid contained in a first volume, immersing a second electronic component of the computing device in a second working fluid contained in a second volume, and changing a pressure in the first volume to alter a boiling temperature of the first working fluid in the first volume.Type: ApplicationFiled: November 12, 2021Publication date: May 18, 2023Inventors: Bharath RAMAKRISHNAN, Husam Atallah ALISSA, Eric C. PETERSON, Nicholas Andrew KEEHN, Christian L. BELADY, Ioannis MANOUSAKIS, Dennis TRIEU
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Patent number: 11653475Abstract: An electronics cooling system includes a printed circuit board (PCB) assembly having a heat generating component connected to a base. A plurality of thermally conductive microtubes are connected to the PCB assembly with a first spatial density. The plurality of thermally conductive microtubes are connected to a heat plate of a cooling system with a second spatial density to evenly spread the heat flux of the PCB assembly over the heat plate.Type: GrantFiled: February 1, 2021Date of Patent: May 16, 2023Assignee: Microsoft Technology Licensing, LLCInventors: Ioannis Manousakis, Husam Atallah Alissa, Nicholas Andrew Keehn, Bharath Ramakrishnan
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Patent number: 11606878Abstract: A liquid-submersible thermal management system includes a cylindrical outer shell and an inner shell positioned in an interior volume of the outer shell. The cylindrical outer shell has a longitudinal axis oriented vertically relative to a direction of gravity, and the inner shell defines an immersion chamber. The liquid-submersible thermal management system a spine positioned inside the immersion chamber and oriented at least partially in a direction of the longitudinal axis with a heat-generating component located in the immersion chamber. A working fluid is positioned in the immersion chamber and at least partially surrounding the heat-generating component. The working fluid receives heat from the heat-generating component.Type: GrantFiled: April 9, 2021Date of Patent: March 14, 2023Assignee: Microsoft Technology Licensing, LLCInventors: Husam Atallah Alissa, Ioannis Manousakis, Nicholas Andrew Keehn, Eric C. Peterson, Bharath Ramakrishnan, Christian L. Belady, Ricardo Gouvea Bianchini
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Publication number: 20230020411Abstract: Examples are disclosed that relate to attenuating fan noise in a computing storage system comprising magnetic data storage devices. One example provides a computing storage system comprising an enclosure, a plurality of magnetic data storage devices positioned within the enclosure, one or more fans positioned to cool the magnetic data storage devices, and an acoustic attenuator located between the plurality of magnetic data storage devices and the one or more fans. The acoustic attenuator comprises a plurality of airflow channels each defined by one or more internal walls of the acoustic attenuator, wherein at least one of the plurality of airflow channels is configured to block a line of sight between the plurality of magnetic data storage devices and the one or more fans.Type: ApplicationFiled: July 15, 2021Publication date: January 19, 2023Applicant: Microsoft Technology Licensing, LLCInventors: Jason David ADRIAN, Dominic Kai Yin CHENG, Nicholas Andrew KEEHN