Abstract Structure rotor takes a great effect on the performance of screw vacuum pump. An
optimized design for conical rotor profiles with adjustable flow field clearances is proposed …

This paper modeled the dynamic characteristics of dry screw vacuum pumps considering the
forces induced by gas, gear, bearings, and rotor gravity, and discussed the load on bearings …

A practical method to ensure precisely inserts arrangement onto the cutter body is required
since it has a decisive impact on the rotor profile accuracy. Correctness evaluation of …

A vacuum pump mainly consists of intermeshing screw rotors, which apply a cycloid profile
to enhance the operating performance. However, it yields a concave rotor profile, increases …

A milling cutter with inserted blades is designed for each screw rotor since the geometry
profile is unique, corresponding to its purposes and function. Correctness in cutter design …

This study proposes a novel calculation method for meshing clearance between two mating
screw rotors in compressors and vacuum pumps. The meshing clearance is obtained by …

This paper summarizes three Quimby-tooth rotor profile (QRP) generation models for dry
screw vacuum pumps. Seven typical profiles are generated and compared to reveal their …

Enhancing rotor profile accuracy is an attention issue of researchers because the rotor
profile accuracy is of great significance for enhancing the pump performance. This issue can …

The sealing line is one of the key influences on twin-screw rotor vacuum pump performance.
The design of a rotor profile based on a sealing line for an asymmetrical rotor of a vacuum …

The influence of the number of lobes on the working process of Roots vacuum pump is
examined using the production vacuum pump NVD‐200 with a rotor profile based on an …