Design for NVH Performance and Weight Reduction in Plastic Timing Chain Cover Application

Paper #:
  • 2014-01-1043

Published:
  • 2014-04-01
DOI:
  • 10.4271/2014-01-1043
Citation:
Oh, K., Han, W., Jang, J., Tho, Y. et al., "Design for NVH Performance and Weight Reduction in Plastic Timing Chain Cover Application," SAE Technical Paper 2014-01-1043, 2014, doi:10.4271/2014-01-1043.
Pages:
4
Abstract:
Light weighting is a critical objective in the automotive industry to improve fuel efficiency. But when redesigning parts for light weight, by changing from metal to plastic, the resulting design gives NVH issues due to differences in part mass and material stiffness. Many parts were not converted from metal to plastic because of NVH issues that could not be solved.Many engine parts such as cylinder head cover, air intake manifold, oil pan and etc. previously made of metal have since long been replaced with plastic. But timing chain cover has not been replaced because of the aforementioned issue. Sealing performance due to the dynamic characteristics of the application is another challenging factor.In this paper, the key aspects of the plastic timing chain cover as well as its advantage are presented.
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