ATF Additive Effects on Hot Spot Formation in Wet Clutches BorgWarner Transmission Systems

Format:

Conference/Event

Author/Creator:

Fairbank, Donn, author.

Conference Name:

SAE International Fall Fuels & Lubricants Meeting & Exhibition (2001-09-24 : San Antonio, Texas, United States)

Spring Fuels & Lubricants Meeting & Exhibition (2002-05-06 : Reno, Nevada, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2001

Summary:

Wet clutch interfaces that operate in high-energy environments experience significant frictional heating. Under such conditions, thermoelastic or thermoplastic instabilities may lead to a transition from evenly distributed surface contacts to unevenly distributed regions that manifest themselves as hot spots on the separator plate. The critical power at which these instabilities occur depend on the thermal conductivity, thermal expansion, and stiffness of the components. Modeling has shown that for wet clutch interfaces the stiffness of the friction material has a dominant influence on the critical power. We have found that the lubricant additive package also plays a significant role in the onset of hot spots. In this paper, we report the influence of antiwear systems on the occurrence of hot spots

Notes:

Vendor supplied data

Publisher Number:

2001-01-3594

Access Restriction:

Restricted for use by site license