| 摘要 |
PROBLEM TO BE SOLVED: To minimize a temperature rise in gas sent in a hollow driving shaft by being compressed by one stage, in a linear vibrating two-stage compressor for compressing the gas in a two-stage system on both ends of the hollow driving shaft. SOLUTION: Air in an outside part of the hollow driving shaft 12, is agitated by erecting a large number of cooling projections 29 on an outside surface of the hollow driving shaft 12, to diffuse heat of the gas passing through the hollow driving shaft 12 and its inside and heat around the hollow driving shaft. COPYRIGHT: (C)2006,JPO&NCIPI
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