| 摘要 |
A rotating fluid machine is constructed such that an annular piston (22) is received inside annular cylinder chambers (C1, C2) of a cylinder (21) to form an outer cylinder chamber (C1) and an inner cylinder chamber (C2), that the cylinder (21) and the annular piston (22) relatively perform eccentric rotating motion, and that the rotating fluid machine has an eccentrically rotating piston mechanism (20) in which the cylinder chambers (C1, C2) are partitioned into first chambers (C1-Hp, C2-Hp) and second chambers (C1-Lp, C2-Lp). In order to prevent seizure and wear of the blade (23) and the annular piston (22) during operation and to prevent gas leakage between the first chambers (C1-Hp, C2-Hp) and the second chambers (C1-Lp, C2-Lp), the blade (23) and the annular piston (22) are relatively movably connected by an oscillation bush (27), and sliding surfaces (P1, P2) are provided on the blade (23), at sections at which the blade (23) is in contact with the annular piston (22) and the oscillation bush (27). ® KIPO & WIPO 2007
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