US 11,991,858 B2
Two phase coolant management
Nicholas Andrew Keehn, Kirkland, WA (US); Bharath Ramakrishnan, Bellevue, WA (US); Eric Clarence Peterson, Woodinville, WA (US); Husam Alissa, Redmond, WA (US); Seth Henderson Morris, Advance, NC (US); and Ioannis Manousakis, New York, NY (US)
Assigned to Microsoft Technology Licensing, LLC, Redmond, WA (US)
Filed by Microsoft Technology Licensing, LLC, Redmond, WA (US)
Filed on Dec. 29, 2021, as Appl. No. 17/565,242.
Claims priority of provisional application 63/150,505, filed on Feb. 17, 2021.
Prior Publication US 2022/0264761 A1, Aug. 18, 2022
Int. Cl. H05K 7/20 (2006.01)
CPC H05K 7/203 (2013.01) [H05K 7/20318 (2013.01); H05K 7/20327 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system, comprising: a two-phase liquid immersion tank containing heat generating components and a liquid phase of a coolant having a boiling point within an operating temperature range of the heat generating components; a stratification chamber comprising an upper portion of the liquid immersion tank and configured to at least partially vertically separate a gas phase of the coolant from other gases that are relatively less dense than the gas phase of the coolant and to allow removal of the separated other gases while retaining the gas phase of the coolant; and, a condenser chamber comprising an intermediate portion of the liquid immersion tank that is fluidly coupled to a lower region of the stratification chamber and configured to receive the gas phase of the coolant and cause the gas phase of the coolant to change phase back into the liquid phase of the coolant.