Valve timing adjusting device

  • US 6,591,799 B1
  • Filed: 03/11/2002
  • Issued: 07/15/2003
  • Est. Priority Date: 07/10/2000
  • Status: Active Grant
First Claim
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1. A valve timing control device mounted on an end of a camshaft having a plurality of cams opening and closing an intake or exhaust valve of an internal combustion engine to modify timing for the opening and closing of the intake or exhaust valve by way of a tappet, comprising:

  • a bias means biasing the camshaft in an advanced direction with a biasing force substantially equal to or smaller than a peak value of frictional torque produced between a cam of the camshaft and the tappet.

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