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Valve timing control device for an internal combustion engine

  • US 6,109,225 A
  • Filed: 01/05/1999
  • Issued: 08/29/2000
  • Est. Priority Date: 01/30/1998
  • Status: Expired due to Term
First Claim
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1. A valve timing control device for changing a valve timing of one of an intake valve and an exhaust valve of an engine, comprising:

  • valve variable means for changing a valve overlap amount from an opening of the intake valve to a closing of the exhaust valve of a cylinder of the engine;

    means for detecting operating conditions of the engine;

    control means for controlling an operating amount of said valve variable means in accordance with the engine operating conditions;

    fuel property detection means for detecting a property of fuel burned in the engine; and

    operating amount correction means for the control means for correcting a control amount of said control means in accordance with the fuel property detected by said fuel property detection means.

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