Patent ID: 8753068

Claim:
A pump including a suction inlet for drawing in a liquid and a discharge outlet for discharging the liquid drawn in, wherein a suction direction and a discharge direction of the liquid are approximately perpendicular to each other, the pump comprising: a shaft positioned downstream of the suction inlet such that a longitudinal direction of the shaft is approximately same as the suction direction; an impeller configured in a disk shape that rotates around an axis of rotation located in the shaft, the impeller having a plurality of blades formed radially in a radial direction from a center area located at a center portion of the disk shape as seen in the suction direction, the plurality of blades being positioned at a longitudinal position approximately same as a longitudinal position of the discharge outlet when a longitudinal direction is defined in terms of the longitudinal direction of the shaft, and the impeller being configured to rotate around the axis of rotation located in the shaft, thereby causing the liquid to be drawn in from the suction inlet and discharged from the discharge outlet; and a bearing that receives the shaft, the bearing having a guide portion positioned at the center area of the impeller and configured to rotate with the impeller, thereby forming flow paths connected with flow paths of the impeller.