A Study on Wear of Brush and Carbon Flat Commutator of DC Motor for Automotive Fuel Pump

Koichiro SAWA; Takahiro UENO; Hidenori TANAKA

doi:10.1587/transele.E93.C.1443

A Study on Wear of Brush and Carbon Flat Commutator of DC Motor for Automotive Fuel Pump

Koichiro SAWA, Takahiro UENO, Hidenori TANAKA

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In an automotive fuel pump system, a small DC motor is widely used to drive the pump and driven by a automotive battery. Recently a bio-fuel, usually a mixture of gasoline and ethanol has been used due to shortage of gasoline and environmental aspect. It affects strongly the performances of a DC motor, especially commutation phenomena, what kind of fuel is used. Therefore the authors have started to investigate the influence of ethanol on the commutation phenomena. They have been reporting the wear of brush and carbon flat commutator in gasoline and ethanol so far. In this paper commutation period, arc duration, brush and commutator wear are examined in ethanol 50-gasoline 50%. Brush wears are very small compared with the previous results. Namely in the present test a mechanical sliding wear is predominant rather than erosion by arc due to short arc duration. Further, an area eroded by arc is observed to re-appear as a sliding surface. From these results a threshold arc energy between arc erosion and mechanical sliding wear is obtained, and a wear model is proposed to explain the above wear pattern on the sliding surface.

Publication: IEICE TRANSACTIONS on Electronics Vol.E93-C No.9 pp.1443-1448

Publication Date: 2010/09/01

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Online ISSN: 1745-1353

DOI: 10.1587/transele.E93.C.1443

Type of Manuscript: Special Section PAPER (Special Section on Recent Development of Electro-Mechanical Devices (Selected Papers from IS-EMD2009))

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Koichiro SAWA, Takahiro UENO, Hidenori TANAKA, "A Study on Wear of Brush and Carbon Flat Commutator of DC Motor for Automotive Fuel Pump" in IEICE TRANSACTIONS on Electronics, vol. E93-C, no. 9, pp. 1443-1448, September 2010, doi: 10.1587/transele.E93.C.1443.
Abstract: In an automotive fuel pump system, a small DC motor is widely used to drive the pump and driven by a automotive battery. Recently a bio-fuel, usually a mixture of gasoline and ethanol has been used due to shortage of gasoline and environmental aspect. It affects strongly the performances of a DC motor, especially commutation phenomena, what kind of fuel is used. Therefore the authors have started to investigate the influence of ethanol on the commutation phenomena. They have been reporting the wear of brush and carbon flat commutator in gasoline and ethanol so far. In this paper commutation period, arc duration, brush and commutator wear are examined in ethanol 50-gasoline 50%. Brush wears are very small compared with the previous results. Namely in the present test a mechanical sliding wear is predominant rather than erosion by arc due to short arc duration. Further, an area eroded by arc is observed to re-appear as a sliding surface. From these results a threshold arc energy between arc erosion and mechanical sliding wear is obtained, and a wear model is proposed to explain the above wear pattern on the sliding surface.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.E93.C.1443/_p

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@ARTICLE{e93-c_9_1443,
author={Koichiro SAWA, Takahiro UENO, Hidenori TANAKA, },
journal={IEICE TRANSACTIONS on Electronics},
title={A Study on Wear of Brush and Carbon Flat Commutator of DC Motor for Automotive Fuel Pump},
year={2010},
volume={E93-C},
number={9},
pages={1443-1448},
abstract={In an automotive fuel pump system, a small DC motor is widely used to drive the pump and driven by a automotive battery. Recently a bio-fuel, usually a mixture of gasoline and ethanol has been used due to shortage of gasoline and environmental aspect. It affects strongly the performances of a DC motor, especially commutation phenomena, what kind of fuel is used. Therefore the authors have started to investigate the influence of ethanol on the commutation phenomena. They have been reporting the wear of brush and carbon flat commutator in gasoline and ethanol so far. In this paper commutation period, arc duration, brush and commutator wear are examined in ethanol 50-gasoline 50%. Brush wears are very small compared with the previous results. Namely in the present test a mechanical sliding wear is predominant rather than erosion by arc due to short arc duration. Further, an area eroded by arc is observed to re-appear as a sliding surface. From these results a threshold arc energy between arc erosion and mechanical sliding wear is obtained, and a wear model is proposed to explain the above wear pattern on the sliding surface.},
keywords={},
doi={10.1587/transele.E93.C.1443},
ISSN={1745-1353},
month={September},}

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TY - JOUR
TI - A Study on Wear of Brush and Carbon Flat Commutator of DC Motor for Automotive Fuel Pump
T2 - IEICE TRANSACTIONS on Electronics
SP - 1443
EP - 1448
AU - Koichiro SAWA
AU - Takahiro UENO
AU - Hidenori TANAKA
PY - 2010
DO - 10.1587/transele.E93.C.1443
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E93-C
IS - 9
JA - IEICE TRANSACTIONS on Electronics
Y1 - September 2010
AB - In an automotive fuel pump system, a small DC motor is widely used to drive the pump and driven by a automotive battery. Recently a bio-fuel, usually a mixture of gasoline and ethanol has been used due to shortage of gasoline and environmental aspect. It affects strongly the performances of a DC motor, especially commutation phenomena, what kind of fuel is used. Therefore the authors have started to investigate the influence of ethanol on the commutation phenomena. They have been reporting the wear of brush and carbon flat commutator in gasoline and ethanol so far. In this paper commutation period, arc duration, brush and commutator wear are examined in ethanol 50-gasoline 50%. Brush wears are very small compared with the previous results. Namely in the present test a mechanical sliding wear is predominant rather than erosion by arc due to short arc duration. Further, an area eroded by arc is observed to re-appear as a sliding surface. From these results a threshold arc energy between arc erosion and mechanical sliding wear is obtained, and a wear model is proposed to explain the above wear pattern on the sliding surface.
ER -