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Paper Abstract and Keywords
Presentation 2018-05-18 13:05
A Wear Model of Commutator and Brush Taking Account of Arc Erosion for DC Moto Driving Automotive Fuel Pump
Koichiro Sawa, Yoshitada Watanabe, Takahiro Ueno (NIT) EMD2018-1 Link to ES Tech. Rep. Archives: EMD2018-1
Abstract (in Japanese) (See Japanese page) 
(in English) A carbon flat commutator and carbon brush are widely used in a DC motor driving an automotive fuel pump. The authors have reported the commutation phenomena in various fuels, gasoline, ethanol and others such as arc duration and wear/erosion of brush and commutator. As well-known the brush and commutator wear/erosion increases when the arc occurs. In the previous authors’ works the arc erosion part on the commutator can be clearly recognized for carbon flat commutators. By analyzing the commutator surface by the laser microscope the mechanical wear and the arc erosion can be separately estimated. Consequently, it can be made clear that the arc discharge not only generates arc erosion, but also increases the mechanical wear. It is probably because the erosion by arc decreases effective sliding area of the brush and it causes the increase of current density. In this report a wear model considering the increase of the current density is proposed and brush wear is calculated based on the model. Further the calculated wear is compared with experimental ones.
Keyword (in Japanese) (See Japanese page) 
(in English) DC motor / flat commutator / commutation arc / wear model / brush wear / / /  
Reference Info. IEICE Tech. Rep., vol. 118, no. 41, EMD2018-1, pp. 1-6, May 2018.
Paper # EMD2018-1 
Date of Issue 2018-05-11 (EMD) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF EMD2018-1 Link to ES Tech. Rep. Archives: EMD2018-1

Conference Information
Committee EMD  
Conference Date 2018-05-18 - 2018-05-18 
Place (in Japanese) (See Japanese page) 
Place (in English) Muroran Institute of Technology 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EMD 
Conference Code 2018-05-EMD 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Wear Model of Commutator and Brush Taking Account of Arc Erosion for DC Moto Driving Automotive Fuel Pump 
Sub Title (in English)  
Keyword(1) DC motor  
Keyword(2) flat commutator  
Keyword(3) commutation arc  
Keyword(4) wear model  
Keyword(5) brush wear  
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1st Author's Name Koichiro Sawa  
1st Author's Affiliation Nippon Institute of Technology (NIT)
2nd Author's Name Yoshitada Watanabe  
2nd Author's Affiliation Nippon Institute of Technology (NIT)
3rd Author's Name Takahiro Ueno  
3rd Author's Affiliation Nippon Institute of Technology (NIT)
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Speaker
Date Time 2018-05-18 13:05:00 
Presentation Time 25 
Registration for EMD 
Paper # IEICE-EMD2018-1 
Volume (vol) IEICE-118 
Number (no) no.41 
Page pp.1-6 
#Pages IEICE-6 
Date of Issue IEICE-EMD-2018-05-11 


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