Characteristics of Flat Commutator on DC Motor for Automotive Fuel Pump

Takashi SHIGEMORI  Koichiro SAWA  

Publication
IEICE TRANSACTIONS on Electronics   Vol.E87-C   No.8   pp.1255-1260
Publication Date: 2004/08/01
Online ISSN: 
DOI: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on IS-EMD2003--Recent Technical Trend of Electro-Mechanical Devices)
Category: New Technology and Automotive Applications
Keyword: 
commutation,  arc,  loss,  gasoline,  flat commutator,  

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Summary: 
Automotive fuel pumps are driven by small DC motor. Commutation is carried out in gasoline, and arc voltage and duration are different from that in air. Our laboratory have analyzed commutation phenomenon in gasoline quantitatively and we have considered brush materials. To develop high power motor, we need to examine materials that are less arc abrasion and good sliding condition. In this research, we attend to characteristics of flat carbon commutator. As a result, it is possible to drive longer time, like established cylindrical copper commutator.