Wet friction clutch—lubricant systems providing high dynamic coefficients of friction through the use of borated detergents
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United States of America Patent
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Jun 14, 2016
Grant Date -
Jan 10, 2013
app pub date -
Feb 19, 2010
filing date -
Feb 19, 2010
priority date (Note) -
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Abstract
A wet friction clutch—lubricant system wherein a wet friction clutch having a cellulose—based friction lining having a surface coating of silica based particles, or a device including such a clutch, is lubricated with a lubricant composition a major amount of oil of lubricating viscosity and minor effective amounts of performance enhancing additives including (a) ashless dispersant; (b) organic phosphorus compound and (c) borated detergents; and optionally, (d) an auxiliary friction modifier.
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