| 摘要 |
An air compressor/expander is provided to prevent vibration generated in a driving shaft and a driven shaft in driving the air compressor/expander by supporting a protrusion formed in the driving shaft and the driven shaft with a ball bearing. An air compressor/expander comprises: a casing(10) in which a space part(12) is formed inside and an inlet is formed in one side; a driving shaft(20) passing through the casing and a gear-box(19) and being delivered power from a driving source; a driven shaft(23) being delivered the power through a driving gear(21) and a driven gear(24) and being installed through the casing and the gear-box; and first and second rotors(26,27) being installed at the driving shaft and the driven shaft and rotating reversely to each other and performing compression and expansion of air. |
