Effect of Top Compression Ring Profile on Oil Consumption and Blowby with the Sealed Ring-Orifice Design Fuels and Lubricants Dept., General Motors Research Labs., Warren, MI

Format:

Conference/Event

Author/Creator:

Wentworth, Joseph T., author.

Conference Name:

SAE International Congress & Exposition (1982-02-22 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1982

Summary:

The sealed ring-orifice (SR-O) top compression ring was developed to reduce exhaust hydrocarbon emissions and blowby. Oil consumption, however, was often erratic. Results from this study demonstrate that oil control, blowby, and power output can be improved by changing the ring face profile.Three profiles were investigated: plain taper, taper-sawtooth, and crown. Oil consumption was lowest with the taper-sawtooth and crown-profile rings. The crown-profile rings had the lowest blowby, and their friction and exhaust hydrocarbon emissions were equal to, or less than, those of the other types. Overall, the crown-profile rings performed best

Notes:

Vendor supplied data

Publisher Number:

820089

Access Restriction:

Restricted for use by site license