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A new scroll-type air motor with magnetic spirals

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Luo, Xing, Wang, Jihong, Shpanin, L. M. and Dooner, Mark (2018) A new scroll-type air motor with magnetic spirals. IEEE/ASME Transactions on Mechatronics, 23 (1). 459 -468. doi:10.1109/TMECH.2017.2749378

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Official URL: https://doi.org/10.1109/TMECH.2017.2749378

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Abstract

The scroll-type air motor, also named the scroll expander, has been widely used for different applications due to its characteristics of compact structure and high energy conversion efficiency. However, the leakage and the friction result in non-negligible energy losses. This paper presents the recent work on developing a new scroll-type air motor with mounted permanent magnetic spirals and investigates its potential in leakage reduction and efficiency improvement, especially at low-pressure air supply conditions. A method for the implementation of the magnetic scroll air motor is proposed. A prototype is manufactured and initial experimental tests are conducted to study the generalized torque distribution. A mathematical model for the magnetic scroll air motor is developed and a corresponding simulation study is presented. The study shows that the proposed magnetic scroll air motor structure is feasible in terms of manufacturing and has the potential to reduce the air leakage and thus to improve the energy efficiency by a maximum of around 15% at a supply pressure of Pa with a flank leakage clearance reference of 0.06mm.

Item Type: Journal Article
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Science > Engineering
Library of Congress Subject Headings (LCSH): Pneumatic machinery -- Design and construction, Pneumatic machinery -- Energy consumption
Journal or Publication Title: IEEE/ASME Transactions on Mechatronics
Publisher: Institute of Electrical and Electronics Engineers
ISSN: 1083-4435
Official Date: February 2018
Dates:
DateEvent
February 2018Published
17 November 2017Available
27 August 2017Accepted
Volume: 23
Number: 1
Page Range: 459 -468
DOI: 10.1109/TMECH.2017.2749378
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
Funder: Engineering and Physical Sciences Research Council (EPSRC)
Grant number: EP/K002228/1, EP/L019469/1
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