Variable lost motion valve actuator and method

  • US 7,059,282 B2
  • Filed: 09/23/2002
  • Issued: 06/13/2006
  • Est. Priority Date: 12/11/1997
  • Status: Expired due to Term
First Claim
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1. A valve actuation system for controlling the operation of an engine valve, said system comprising:

  • means for hydraulically varying the amount of engine valve actuation;

    a solenoid actuated trigger valve operatively connected to the means for hydraulically varying; and

    means for determining trigger valve actuation and deactuation times based on a selected engine mode, and engine load and engine speed values.

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