Development and analysis of novel six-lobe helical rotors for hydrogen fuel cell vehicle roots blowers

Li, Dantong; He, Zhilong; Sun, Shaodong; Wang, Chuang; Chen, Wenqing; Xing, Ziwen

doi:10.1016/j.ijhydene.2021.06.199

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2022

2024

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Cited by 14 publications

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“…Development and analysis of the working process of air blower with the six-lobe elliptical (EPR) helical profile [14] is considered when hydrogen is pumped. The lumped-parameter method (the chamber method) is used for mathematical modeling of the working process.…”

Section: Zusammenfassungmentioning

confidence: 99%

Roots multi‐lobe vacuum pumps with external compression

Raykov,

Salikeev,

Burmistrov

et al. 2024

Vak Forsch Prax

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SummaryThe 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 elliptical curve as a prototype. Design with two‐lobe, three‐lobe and four‐lobe rotor profiles was considered. Calculation of the main parameters characterizing profile quality (area‐utilizing ratio and conductance of rotor mechanism clearances) was carried out. The influence of rotor “plumpness” on pumping characteristics was studied. It is shown that the number of lobes providing the maximal pumping speed is different depending on the geometric parameters of the rotor.

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Section: Zusammenfassungmentioning

confidence: 99%