| 摘要 |
PURPOSE:To prevent the sealing oil amount from abruptly increasing by forming a bypass in which part of sealing oil flowed into an oil pocket of a sealing case is always flowed out in the casing. CONSTITUTION:A bypass 13 in which part of sealing oil 8 flowed into an oil pocket 2 of a sealing casing 1 is always flowed out is formed in the casing 1. Since the hot sealing oil 8 in a main oil tank always flows from the bypass 13, the hot oil 8 is always flowed to the bypass 13 to always heat a sealing ring 3 in the pocket 2 at the prescribed temperature. Thus, gaps 6, 7 of the prescribed size can be held between shaft journals 5 even when the environmental temperature is low at the time of starting a rotary electric machine. |
