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Development of Ceramic Cam Roller Follower for Engine Application
ISSN: 0148-7191, e-ISSN: 2688-3627
Published September 08, 1997 by SAE International in United States
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This paper describes the development of the ceramic cam roller follower manufactured from silicon nitride. The impact strength of the ceramic roller was investigated and proven to have sufficient strength and reliability for use in automotive engine applications. Motor simulation tests were conducted in order to study the best design for the ceramic cam roller. Results from testing show that super finishing of the roller surface is necessary in order to prevent severe wear of the metal shaft and cam. Optimum bearing clearance range was also studied. Performance tests were conducted in order to study the wear properties of the ceramic cam roller. Wear of the tested cam shaft when using the ceramic roller, was less than the conventional steel roller, even though the calculated contact stress was higher. The total amount of wear of the valve train components was significantly reduced when using the ceramic cam roller, when compared to the conventional steel roller. The ceramic cam roller is especially suitable for use in diesel engine applications, which require higher wear resistance and reliability in the valve train system.
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CitationKitamura, K., Takebayashi, H., Ikeda, M., and Percoulis, H., "Development of Ceramic Cam Roller Follower for Engine Application," SAE Technical Paper 972774, 1997, https://doi.org/10.4271/972774.
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- SAE Paper No.920384, “Development of High Strength Si3N4 Sintered Body for the Valve Systems of Automotive Engine” Nishioka T., Matsunuma K., Yamamoto T., Yamakawa A. and Miyake M.
- SAE Paper No.931933, “Development of an Inexpensive, Highly Wear-Resistant Ceramic Cam Follower Part 1 Engine Test Results” Matsumoto S., Maeda S. and Kimura K.
- SAE Paper No.931934, “Development of an Inexpensive, Highly Wear-Resistant Ceramic Cam Follower Part 2 Brazing Technology” TaniguchiM., Nozaki S., Suzuki O. and Ito M.