Development of Sintered Bearing Material with Higher Corrosion Resistance for Fuel Pumps DENSO Corporation

Format:

Conference/Event

Author/Creator:

Nozu, Takahiro, author.

Conference Name:

SAE World Congress & Exhibition (2007-04-16 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2007

Summary:

In recent years, due to a growing demand for improvement in the performance and reliability of automotive fuel pumps and the advancement of globalization, automotive fuel pumps are being used with inferior gasolines that include more sulfur, organic acids or compounds, compared to gasolines used in general regions. Conventionally, bearings in these fuel pumps have mainly been made of sintered bronze alloy. With this bronze alloy, however, it is difficult to achieve a significant improvement in the tribology characteristics of bearings, in order to meet the demands for performance improvement, et cetera, and corrosion is severe in inferior gasolines that contain highly-concentrated organic acids or sulfur and the corrosion products that accompany them. Therefore, in order to obtain fine tribology characteristics and superior corrosion resistance in gasolines with highly-concentrated organic acids and sulfur, various copper-based alloys were studied using the powder metallurgy process. As a result, graphite dispersed Cu-Ni sintered alloys having a high tin alloy layer showed superior corrosion resistance and fine tribology characteristics when lubricated with a gasoline containing highly-concentrated organic acids and sulfur

Notes:

Vendor supplied data

Publisher Number:

2007-01-0415

Access Restriction:

Restricted for use by site license