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ROTARY SCREW COMPRESSOR

  • US 20160123327A1
  • Filed: 10/31/2014
  • Published: 05/05/2016
  • Est. Priority Date: 10/31/2014
  • Status: Active Grant
First Claim
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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.

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