Patent ID: 8163440

Claim:
A fuel cell comprising: a cell comprising: an anode electrode comprising an anode collector and an anode catalyst layer; a cathode electrode comprising a cathode collector and a cathode catalyst layer; and an electrolyte membrane which is disposed between the anode electrode and the cathode electrode; a liquid feed pump for supplying liquid to the anode electrode; and an air supply pump for supplying air to the cathode electrode; wherein the liquid feed pump is a multi-channel pump comprising: a pump chamber; an inflow passage for fluid which is connected to the pump chamber; an inflow side active valve through which the inflow passage is connected to the pump chamber two or more outflow passages which are connected to the pump chamber; outflow side active valves which are provided so as to correspond to the outflow passages; and a movable body for changing a volumetric capacity of the pump chamber; and wherein the movable body is reciprocated to change the volumetric capacity of the pump chamber.