An Analysis of Friction Reduction Techniques for the Direct-Acting Valve Train System of a New-Generation Lightweight 3-Liter V6 Nissan Engine

Paper #:
  • 940992

Published:
  • 1994-03-01
Citation:
Katoh, A. and Yasuda, Y., "An Analysis of Friction Reduction Techniques for the Direct-Acting Valve Train System of a New-Generation Lightweight 3-Liter V6 Nissan Engine," SAE Technical Paper 940992, 1994, https://doi.org/10.4271/940992.
Pages:
10
Abstract:
An investigation was made of techniques for reducing the friction of lightweighted direct-acting valve train systems. The techniques examined included improving the cam/follower surface finish and reducing the valve spring load. The characteristics of each approach and the valve train friction reduction obtained with each one were clarified by experimentation and analysis.As a result, the friction reduction techniques analyzed in this work reduce the friction level of a direct-acting valve train by approximately 40% in comparison with the previous valve train.These techniques have been applied for the direct-acting valve train system of new-generation, lightweight, 3-liter V6 Nissan engine.
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