SMALL PUMP, COOLING SYSTEM AND PORTABLE EQUIPMENT

摘要

PROBLEM TO BE SOLVED: To provide a small pump having both a large discharge flow rate and stable discharge flow rate characteristics by arresting the intrusion of bubbles into the pump. SOLUTION: This small pump 100 comprises: a small pump part 101 comprising an inlet passage 70a for introducing a liquid and a discharge passage 70b for discharging the fluid; and a bubble trap part 40 for arresting the intrusion of bubbles into the small pump part 101. Since the bubble trap part 40 arrests the bubble intrusion to the small pump part 101, the deterioration of the pump characteristics by the bubble intrusion is suppressed, and a stable pump with high performance is obtained.