| 摘要 |
PURPOSE:To prevent the exhaustion of oil by providing a collision wall with which an intake gas which passage through the base part of a coil end collides, opposite to the outer periphery of said coil end base part of a stator, in the space of an intake passage. CONSTITUTION:An intake passage 12 connects the air gap G between a rotor R and a stator S to an intake port through the space between a frame 4 and a casing 1. A collision wall 13 with which an intake gas which passes through the base part of a coil end E collides, is provided opposite to the outer peripheral of the base part of the coil end E of a stator S, in the space of the intake passage 12. Thereby, lubricating oil mixed into the intake gas can be separated, preventing the exhaustion of oil.
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