Patent ID: 7740454

Claim:
A thermal actuation pump, comprising: a first chamber having at least one fluid inlet and at least one fluid outlet; a second chamber having at least one fluid inlet and at least one fluid outlet; and a thermoelectric element arranged between the first chamber and the second chamber and including one side being cooled and the other side being heated according to a direction of current supplied to the thermoelectric element; wherein the thermoelectric element is configured to adjust a temperature of fluid in the first chamber and a temperature of fluid in the second chamber according to the direction of the current; and wherein the fluids in the first and the second chambers are separated from each other by and are in direct contact with plane plates, which form the one side and the other side of the thermoelectric element without being filled with the fluids, respectively, so that the respective fluids of the first and the second chambers separately and oppositely flow in or out by being selectively heated or cooled by the one side and the other side of the thermoelectric element, respectively.