Patent ID: 8240362

Claim:
A cooling system for a computer system processing unit, comprising: an integrated element including a heat exchanging interface, a reservoir, and a pump, wherein the reservoir is configured to receive a cooling liquid from outside the reservoir through an inlet and pass the cooling liquid to the outside through an outlet, the reservoir including an upper chamber and a lower chamber, the upper chamber and the lower chamber being vertically displaced chambers that are separated from each other by at least a horizontal wall and fluidly coupled together by a plurality of substantially circular passages, at least one of the plurality of substantially circular passages being positioned on the horizontal wall, a boundary wall of the lower chamber being formed by the heat exchanging interface; the heat exchanging interface is adapted to provide separable thermal contact between the processing unit and the cooling liquid such that heat is dissipated from the processing unit to the cooling liquid as the cooling liquid passes through the lower chamber of the reservoir; and the pump is adapted to direct the cooling liquid through the upper chamber and the lower chamber of the reservoir, the pump including a motor having a rotor, a stator and an impeller having a plurality of curved blades, the impeller being positioned within the reservoir; a heat radiator spaced apart from the integrated element, the heat radiator being fluidly coupled to the outlet and the inlet of the reservoir, the heat radiator being configured to circulate the cooling liquid therethrough and exhaust heat from the cooling liquid; and a fan configured to direct air through the heat radiator, the fan being driven by a motor separate from the motor of the pump.