Role of Fuel Decomposition Products on Formation of Sequence IIIG Piston Deposits Afton Chemical Corporation

Format:

Conference/Event

Author/Creator:

Devlin, Devlin, author.

Contributor:

Bell, Ian

Dvorak, Todd

Guevremont, Jeffrey

Guinther, Gregory

Loper, John

Sheets, Roger

Conference Name:

SAE 2010 Powertrains Fuels & Lubricants Meeting (2010-10-25 : San Diego, California, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2010

Summary:

Previous research to understand the mechanism for piston deposit formation in the Sequence IIIG engine test has focused on characterizing the piston deposits. These studies concluded that, in addition to lubricant derived materials, Sequence IIIG piston deposits contain a significant amount of fuel-derived carbonaceous material. The presence of fuel degradation by-products in Sequence IIIG deposits shows that blow-by is a significant contributor to deposit formation. However, blow-by can either assist in the degradation of the lubricant or can simply be a source for organic material which can be incorporated into the deposits. Therefore, a series of modified Sequence IIIG engine tests were conducted to better determine the effect of blow-by on deposit formation. In these studies deposit formation on different parts of the piston assembly were examined since different parts of the piston assembly are exposed to different amounts of blow-by. Furthermore, the rate of deposit formation in the Sequence IIIG engine test was examined to determine if the rate of lubricant degradation is related to the rate of deposit formation

Notes:

Vendor supplied data

Publisher Number:

2010-01-2259

Access Restriction:

Restricted for use by site license