ROTARY SCREW COMPRESSOR

摘要

A gas compressor is disclosed that includes a first rotor having a first rotor body, the first rotor body including a plurality of helical lobes, an infernal volume within the first rotor body defined by a wall, and a turbine disposed within the internal volume, the turbine including a turbine body and a plurality of airfoils extending substantially radially from the turbine body to the wall, where the internal volume is structured to enable a cooling fluid to flow therethrough. The gas compressor further includes a second rotor body including a plurality of helical flutes, an inlet manifold and an outlet manifold, both disposed within the second rotor body, and a body channel within at least one flute extending from and in fluid communication with the inlet manifold to the outlet manifold, where the body channel is structured to enable a cooling fluid to flow therethrough.

主权项

1. An apparatus comprising:
a screw compressor rotor having an exterior compression surface defined by a helical shape, the helical shape axially extending from a first end to a second end and having a helical grooved valley situated between opposing helical valley walls, the screw compressor rotor having a cooling fluid inlet disposed in the first end to receive a cooling fluid and a plurality of separate cooling passages disposed internal to the screw compressor rotor, the plurality of separate cooling passages in fluid communication with the cooling fluid inlet such that the cooling fluid inlet feeds cooling fluid to the plurality of separate cooling passages, the plurality of cooling passages having cross sectional areas that increase along a direction from an upstream end to a downstream end of the plurality of cooling passages.