Sintered bearing for motor-powered fuel injection pumps

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United States of America Patent

PATENT NO 8999232
APP PUB NO 20130189150A1
SERIAL NO

13876084

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Abstract

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There is provided a bearing for motor-powered fuel injection pumps, made from Cu—Ni-based sintered alloy, which is able to be obtained at a low cost, having excellent corrosion and abrasion resistances. The bearing contains 10 to 20% by mass of Ni, 5 to 13% by mass of Sn, 0.1 to 0.8% by mass of P, 1 to 6% by mass of C, and a remainder containing Cu and inevitable impurities, and is formed with a Ni—Sn—Cu—P phase containing at least 30% by mass of Sn in a grain boundary, and has a 8 to 18% porosity. The Ni—Sn—Cu—P phase contains 30 to 49% by mass of Ni, 10 to 30% by mass of Cu, 0.5 to 1.5% by mass of P, and a remainder containing Sn and inevitable impurities.

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Patent Owner(s)

Patent OwnerAddress
DIAMET CORPORATIONNIIGATA-SHI NIIGATA 950-8640

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ishii, Yoshinari Niigata, JP 29 74
Maruyama, Tsuneo Niigata, JP 43 185
Tamura, Yoshiki Niigata, JP 9 24

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