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Variable valve actuator assembly having a secondary actuator

  • US 6,595,172 B2
  • Filed: 05/14/2001
  • Issued: 07/22/2003
  • Est. Priority Date: 05/14/2001
  • Status: Expired due to Fees
First Claim
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1. A variable valve mechanism, comprising:

  • a control shaft, said control shaft being rotatable to select a desired valve lift profile of at least one valve in said variable valve mechanism; and

    a variable valve actuator assembly, including;

    a main actuator;

    a secondary actuator; and

    an actuator shaft coupled to each of said main actuator and said secondary actuator, said main actuator and said secondary actuator each being separately and independently selectable for driving said actuator shaft to rotate, said actuator shaft being coupled to said control shaft such that rotation of said actuator shaft is transferred to said control shaft.

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