Patent ID: 8351206
Filing Date: 2013-01-08
Classification: H05K

Abstract:
1. A liquid-cooled electronics rack comprising: an electronics rack, the electronics rack comprising a plurality of immersion-cooled electronic subsystems, each immersion-cooled electronic subsystem comprising: a vertically-oriented, vapor-condensing unit facilitating condensing of dielectric fluid vapor egressing from the compartments of the plurality of immersion-cooled electronic subsystems, wherein the dielectric fluid vapor outlets of the plurality of immersion-cooled electronic subsystems are coupled in fluid communication with the vertically-oriented, vapor-condensing unit, and the vertically-oriented, vapor-condensing unit is sized and configured to reside adjacent to at least one side of the electronics rack; a reservoir for holding dielectric fluid, the reservoir receiving dielectric fluid condensate from the vertically-oriented, vapor-condensing unit; a dielectric fluid supply manifold coupling in fluid communication the reservoir and the dielectric fluid inlets of the plurality of immersion-cooled electronic subsystems; a pump associated with the reservoir for pumping under pressure dielectric fluid from the reservoir to the dielectric fluid supply manifold for maintaining dielectric fluid in a liquid state within the compartments of the plurality of immersion-cooled electronic subsystems; and a vertically-oriented, vapor-condensing heat exchanuer disposed within the vertically-oriented, vapor-condensing, unit, and a facility coolant supply line and a facility coolant return line coupled in fluid communication with the vertically-oriented, vapor-condensing heat exchanger for passing chilled facility coolant therethrough, the chilled faclity coolant being at a temperature below a saturation temperature of the dielectric fluid vapor egressing from the compartments of the plurality of immersion-cooled electronic subsystems.