Patent ID: 9069532
Filing Date: 2015-06-30
Classification: G06F,H05K

Abstract:
1. A cooling apparatus comprising: at least one heat sink to cool at least one electronic component of an electronic subsystem of multiple electronic subsystems of an electronics rack, the at least one heat sink comprising at least one coolant-carrying channel for coolant to flow therethrough, the coolant providing two-phase cooling to the at least one electronic component, and being discharged from the at least one heat sink as coolant exhaust with coolant vapor; a node-level condensation module disposed within the electronic subsystem comprising the at least one electronic component, the node-level condensation module being coupled in fluid communication with the at least one heat sink and receiving the coolant exhaust therefrom, the node-level condensation module being liquid-cooled to facilitate condensing the coolant vapor in the received coolant exhaust within the electronic subsystem before return to a rack-level coolant return manifold of the electronics rack; a controller automatically controlling at least one of the liquid-cooling of the at least one heat sink or the liquid-cooling of the node-level condensation module; a control valve directing coolant flow to the at least one heat sink and to the node-level condensation module for the liquid-cooling thereof, the control valve being automatically controlled by the controller; and wherein the control valve divides liquid coolant flow received at the electronic subsystem from a rack-level coolant supply manifold of the electronics rack between the at least one heat sink and the node-level condensation module, the control valve being automatically controlled by the controller to automatically adjust a fraction of received coolant flow provided to the at least one heat sink based on a temperature associated with the at least one electronic component.