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THE DEVELOPMENT OF THE SINGLE SCREW COMPRESSOR AND OIL REDUCED OPERATION.

Author(s) : HUNDY G. F.

Type of article: Periodical article

Summary

RESTRICTIONS ON DEVELOPMENT FOR WIDE RANGES OF VOLUME FLOW RATE HAVE BEEN ON VOLUMETRIC EFFICIENCY WHICH REDUCES WITH INCREASED CLEARANCE PROPORTIONS ON SMALL ROTOR DIAMETERS AND HIGH FRICTION LOSSES OCCURRING WHEN SPEED OR DIAMETER OF ROTOR ARE INCREASED. THE LATTER HAS BEEN OVERCOME TO SOME EXTENT BY USING TANDEM ROTORS ON A COMMON SHAFT, ENABLING MACHINES UP TO 5,000 M3/H CAPACITY TO BE PRODUCED. ALSO EXPERIMENTS USING LIQUID REFRIGERANT RATHER THAN OIL FOR THE MAIN COOLING AND SCREW/STAR LUBRICATING FLUID ARE LEADING TO REDUCED-OIL OPERATION. THIS TECHNIQUE PRODUCES IMPROVED COOLING AND HENCE LOWER CLEARANCES AND ALSO OFFERS THE POSSIBILITY OF SMALLER MACHINES BEING MADE WITH NO FURTHER COMPLEXITY OF OIL SYSTEMS THAN ARE NORMAL IN COMPARABLE RECIPROCATINGCOMPRESSORS.D. W. H.

Details

  • Original title: THE DEVELOPMENT OF THE SINGLE SCREW COMPRESSOR AND OIL REDUCED OPERATION.
  • Record ID : 1983-0107
  • Languages: English
  • Source: Inst. Refrig., Adv. Proof - 6 p.; 9 fig.; 8 ref.
  • Publication date: 1982/04/01
  • Document available for consultation in the library of the IIR headquarters only.

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