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Geometry of screw compressor rotors and their tools

Stosic, N., Smith, I. K. ORCID: 0000-0003-1524-9880, Kovacevic, A. ORCID: 0000-0002-8732-2242 & Mujic, E. (2011). Geometry of screw compressor rotors and their tools. Journal of Zhejiang University-SCIENCE A, 12(4), pp. 310-326. doi: 10.1631/jzus.A1000393


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:
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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