| 摘要 |
PROBLEM TO BE SOLVED: To provide spiral axial screw fluid machinery capable of efficiently cooling force-fed fluid in a casing by providing a means for cooling those parts other than a cooling water jacket thereon. SOLUTION: A cooling device is installed on spiral axial screw fluid machinery. The cooling device injects adiabatically expanded jet fluid to a casing, a delivery side cover, and a rotor shaft part thereof to directly and indirectly cool hot force-fed fluid.
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