| 摘要 |
PROBLEM TO BE SOLVED: To prevent outflow of lubricant in a bearing.SOLUTION: A pump unit includes a pump disposed in a casing, a gas-liquid separation chamber for separating fluid delivered from the pump into liquid and gas-enriched liquid, a gas separation chamber for separating the gas-enriched liquid into gas and liquid, a gas-enriched liquid inflow hole for communicating the gas-liquid separation chamber with the gas separation chamber and through which the gas-enriched liquid flows into the gas separation chamber, a rotor chamber for storing a rotor of the pump, a rotor shaft having one end protruded to the outside of the casing and the other end connected to the rotor of the pump, a bearing rotatably supporting the rotor shaft, and a bearing holding part provided in the gas separation chamber and holding the bearing. The pump unit further includes a partition wall member provided on the bearing holding part and defining the bearing and the gas separation chamber so that the fluid from the gas separation chamber is prevented from flowing into the bearing. |
