Variable valve actuator assembly having a secondary actuator
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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Abstract
A variable valve actuator assembly includes a main actuator, a secondary actuator and an actuator shaft. The actuator shaft is coupled to each of the main actuator and the secondary actuator. The main actuator and the secondary actuator are each separately and independently selectable for driving the actuator shaft to rotate.
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Citations
10 Claims
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1. A variable valve mechanism, comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An internal combustion engine, comprising:
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a variable valve train mechanism having at least one intake valve;
a control shaft coupled to said variable valve mechanism, said control shaft being rotatable to select a desired valve lift profile of said at least one valve; 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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Specification