Drying-compressing two-shaft rotation positive displacement machine e.g. spindle compressor, for e.g. compressing gaseous conveying media, has intake-sided and gear box-sided spindle main rotor shaft parts made of sustainable material

摘要

The machine has a rotor inner cooling unit (19) provided for a contactless and counter-rotating screw spindle rotor pair arranged in a workspace cabinet (10). Screw spindle rotor bodies have spindle rotor displacement parts (1) made of lightweight metallic material i.e. aluminum alloy, with small specific gravity and good thermal conductivity. The bodies have intake-sided spindle main rotor shaft parts (2) and gear box-sided spindle main rotor shaft parts (3) made of a material i.e. steel material, which is sustainable when compared to the metallic material.