| 摘要 |
PROBLEM TO BE SOLVED: To provide a flow passage structure which is easy in forming a flow passage in a flange member and reduces the size of the flange member. SOLUTION: In a stator shaft 40 with a shaft member 42 press-fitted in a press-fitting hole 141 of the flange member 42, the first flow passage 102 is formed in the shaft member, a blind hole extending straight in the direction orthogonal to the axis through the press-fitting hole from other circumferential surfaces 43b and 43c of the flange member and a communication hole 103 extending in the axial direction from a side of the flange member and communicated with a side part on the tip part of the blind hole are formed, the second flow passage 103 is formed of an oil passage 101 leading to the tip part from the press-fitting hole in the blind hole, and the communication hole 103, the second flow passage is positioned so that a part opened in the press-fitting hole is communicated with the first flow passage facing each other, and the shaft member is press-fitted into the press-fitting hole to communicate the first flow passage with the second flow passage. |
