Abstract: A deaeration device for deaerating coolant fluid flow in a recirculation cooling system, where the recirculation cooling system includes a cooling fluid reservoir adapted to receive the deaeration device submerged within cooling fluid therein, includes an elongated deaeration tube including a fluid outlet and a deaerating skimming shaped slot for skimming air bubbles and cooling fluid from cooling fluid flow flowing through the deaeration tube, and including a fluid inlet for allowing the same amount of fluid that is skimmed off and removed through the top fluid outlet to re-enter the deaeration tube to maintain mass balance in the cooling fluid flow.

Abstract: An energy storage device coupler for transferring heat away from ends of ultracapacitors of an ultracapacitor energy storage cell pack without shorting out terminals to cases of the ultracapacitors. The energy storage device coupler includes an ultracapacitor engagement member configured to be in thermal contact with the end of the ultracapacitor and including and holes configured to receive terminals of adjacent ultracapacitors; and a heat sink engagement member connected to the ultracapacitor engagement member and configured to be coupled to one or more heat sink devices for removing heat from the ultracapacitor.

Abstract: A deaeration device for deaerating coolant fluid flow in a recirculation cooling system, where the recirculation cooling system includes a cooling fluid reservoir adapted to receive the deaeration device submerged within cooling fluid therein, includes an elongated deaeration tube including a fluid outlet and a deaerating skimming shaped slot for skimming air bubbles and cooling fluid from cooling fluid flow flowing through the deaeration tube, and including a fluid inlet for allowing the same amount of fluid that is skimmed off and removed through the top fluid outlet to re-enter the deaeration tube to maintain mass balance in the cooling fluid flow.