| 摘要 |
PURPOSE:To prevent the discharging of lubricating oil collected at the bottom of an enclosed container to the outside together with exhaust gas, by fixing a cylindrical member having a flange to the upper side of a rotor in the manner that it can be turned together with the rotor in a coaxial manner, and inserting an exhaust pipe to the inside of the cylindrical member in the manner that the top of the exhaust pipe is opened therein. CONSTITUTION:A cylindrical member 12 having a flange 13 is placed on the upper side of a rotor 3 and the flange 13 is fixed to the rotor 3. At the same time, an exhaust pipe 16 is inserted to the inside of the cylindrical member 12 in the manner that the top of the exhaust pipe 16 is opened in the cylindrical member 12. With such an arrangement, part of oil 8 collected at the bottom of an enclosed container 1 together with exhaust gas is raised to an upper space 15 as shown by the solid-line arrows in the drawing and comes into contact with the outer surface of rotating cylindrical member 12. Thus, gas and oil are separated from each other. Here, since the specific weight of oil is greater than that of gas, oil is splashed outward, so that only gas is carried to the top end portion of the exhaust pipe 16 and then discharged to the outside of the enclosed container. Thus, it is enabled to prevent outflow of oil to the outside particularly at the time of starting and to enhance reliability of operation at the sliding portions. |
