| 摘要 |
The machine has a hermetically sealed casing (2a, 2b) enclosing therein a stationary scroll member (5), a movable scroll member (7) engaged with the stationary scroll member (5) and an electromotor (30) used to directly drive the movable scroll member (7). The electromotor (30) comprises a set of motors consisting of movable magnets (32) and stationary coils (31) mutually facing in the axial direction of the machine, with each motor arranged tangentially (Figs 2 & 3). Such features make unnecessary the drive shaft as well as the crankshaft which have conventionally been essential to the machine, thereby minimizing mechanical loss and improving mechanical efficiency. In addition, the axial dimension of the machine can be substantially reduced so as to obtain a compact, light weight machine. <IMAGE>
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