US Patent 11805622 Two phase immersion cooling system with dual condenser units

An immersion cooling system includes an immersion tank and one or more information technology (IT) equipment situated within the immersion tank. The IT equipment is configured to provide IT services and is at least partially submerged within a phase change liquid, where, when the IT equipment provides the IT services, the IT equipment generates heat that is transferred to the phase change liquid thereby causing at least some of the phase change liquid to turn into vapor phase. The immersion cooling system includes a primary condenser unit positioned above the immersion tank and a secondary condenser unit, where, either a single, or both the primary and secondary condenser units are configured to receive cooling liquid from an external cooling unit to condense the phase change liquid in vapor phase back into liquid phase.