Patent ID: 11894288
Assignee: MTS IP HOLDINGS LTD
Field: Chemical engineering (Chemistry)
Classification: CPC H  B  F | IPC B  F  H

Claim 26:
27. A two-phase immersion cooling system, comprising:
a tank defining a tank volume configured to contain one or more printed circuit boards having semiconductor die that generate heat;
coolant liquid, disposed within the tank volume, configured to immerse the one or more printed circuit boards and remove the heat from the respective semiconductor die via vaporization thereby producing coolant vapor, the tank volume including a gas space to contain a mixture of air and the coolant vapor;
a bellows assembly, comprising:
a container defining a container volume configured to receive the mixture from the gas space when a pressure within the tank volume increases and to supply the mixture to the gas space when the pressure within the tank volume decreases; and
a venting tube to fluidically couple the container to the tank; and

an inlet valve assembly directly coupled to the bellows assembly, the inlet valve assembly comprising:
a first pressure relief valve having an open position and a closed position, the first valve being configured to remain in the closed position and only move from the closed position towards the open position when A) a first pressure applied to an outer side of the first valve by a first mixture of air and water vapor in an ambient environment surrounding the system is greater than a second pressure applied to an inner side of the first valve by a second mixture of air and the coolant vapor and B) a pressure difference between the first pressure and the second pressure is greater than a pressure threshold of the first valve; and

an outlet valve assembly directly coupled to the bellows assembly, the outlet valve assembly comprising:
a second pressure relief valve having an open position and a closed position, the second valve being configured to remain in the closed position and only move from the closed position towards the open position when A) a third pressure applied to an inner side of the second valve by the second mixture is greater than a fourth pressure applied to an outer side of the second valve by the first mixture and B) a pressure difference between the third pressure and the fourth pressure is greater than a pressure threshold of the second valve.