| 摘要 |
PURPOSE:To enlarge the compression ratio or expansion ratio of the scroll vane as well as to reduce the diameter of its internal end, by supporting its rotary scroll vane by the stationary scroll vane via more than 2 synchronous eccentric shafts in a scroll machine. CONSTITUTION:The inside space of casing 1 is partitioned into an operation chamber 3 and a gear chamber 4 with a bulkhead 2 and the stationary scroll vane 5 is fixed to the wall of operation chamber 3. The rotary scroll plate 9 provided with a rotary scroll vane 8 which cooperates with this stationary scroll vane 5 is accompanied by, for instance, 4 sets of bearing 10 arranged along its external circumference while an eccentric shaft 11 is rotatably fitted in each bearing 10. The eccentric shaft portions 13, 14 of this eccentric shaft 11 are rotatably supported via bearings 16, 17 respectively, and a gear 18 is attached to the end of shaft 14. This gear 18 is engaged with gear 21 attached to the rotary shaft 20, and enables rotary scroll plate 9 to make revolution with eccentricity (e) via gears 21, 18 in response to the rotation of rotary shaft 20. |
