| 摘要 |
PURPOSE:To secure a sufficient suction quantity of a fluid and at the same time make the whole of a compressor small and lightweight. CONSTITUTION:A first blade 24 of a scroll-form and a second blade 34 of a scroll-form are rotated about the respective central axes O1, O2 at an equal angular speed whereby a fluid is sucked, compressed and then discharged into an operation chamber between both blades 24, 34. The outer part in the radial direction of the first blade 24 is eliminated, and the terminal part of the outside of the remaining part is made into a circular arc-like sliding surface 10a sliding on the inner circumferential surface 10a of a cylindrical housing, thereby using the inner circumferential surface 10a also as the inner circumferential surface of the eliminated part of the first blade.
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