Abstract

This paper presents a method of general geometrical definitions of screw machine rotors and their manufacturing tools. It describes the details of lobe shape specification, and focuses on a new lobe profile, which yields a larger cross-sectional area and shorter sealing lines resulting in higher delivery rates for the same tip speed. A well proven mathematical model was used to determine the optimum profile, compressor housing size, and compressor ports to achieve the superior compressors.

Publication Type:	Article
Additional Information:	This is a pre-print of an article published in Journal of Zhejiang University-SCIENCE A. The final authenticated version is available online at: https://doi.org/10.1631/jzus.A1000393
Publisher Keywords:	Geometry of screw compressors, Rotor lobe profile, Cutting tools
Subjects:	T Technology > TJ Mechanical engineering and machinery
Departments:	School of Science & Technology > Engineering

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