| 摘要 |
A bearing part (120) and a compression chamber (115) are disposed so that a first central line (141) showing the axial center of the bearing part (120) and a second central line (142) showing the axial center of the compression chamber (115) may intersect with each other, angle a1 formed between the first central line (141) and the second central line (142), and predetermined angle b1 may satisfy the relation of formula 1 and angle b1 is set by relating to absolute value c1 of inclination angle of a shaft (110) with respect to the bearing part (120) based on the clearance of the bearing part (120) and the main shaft part (111), and thereby prying between a piston and the compression chamber (115) can be prevented. |
