The Role of Hydroperoxide in Engine Wear and the Effect of ZnDDP/Dispersant/Detergent Interactions Esso Petroleum Canada

Format:

Conference/Event

Author/Creator:

Habeeb, J. J., author.

Conference Name:

1987 SAE International Fall Fuels and Lubricants Meeting and Exhibition (1987-11-02 : Toronto, Canada)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1987

Summary:

Engine wear, particularly that of the valve train, was examined in motored 2.2L and 2.3L engines. Procedures were developed which involved addition of synthetic hydroperoxide to the crank-case oil to simulate fired engine conditions. Cam lobe and follower wear occurred, apparently as a result of direct attack by the hydroperoxide on rubbing surfaces. This type of hydroperoxide-induced wear was identified in a fired bench engine test and in a field test. Similar hydroperoxide-induced wear was also observed in the lesser loaded engine contact areas such as bearings. Phosphorus nuclear magnetic resonance (NMR) has proven to be a useful tool to the understanding of the structure and antioxidant antiwear properties of ZnDDP and its interactions with dispersant/detergent combinations

Notes:

Vendor supplied data

Publisher Number:

872157

Access Restriction:

Restricted for use by site license