Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Zhou Yang0
James Judd0
Michael Dailey0
Neil Fuchs0
Andrew Brzoska0
Brian Ruggiero0
David B Smith0
Date of Patent
July 7, 2009
0Patent Application Number
112905180
Date Filed
December 1, 2005
0Patent Primary Examiner
Patent abstract
Systems and methods for hydraulic and/or variable valve actuation of engine valves are disclosed. An embodiment of the present invention may include a hydraulic valve actuation system operatively connected to an engine valve. First and second control valves may be operatively connected to the hydraulic valve actuation system and adapted to selectively release hydraulic fluid from the hydraulic valve actuation system independent of one another. The first control valve is preferably a solenoid actuated trigger valve and the second control valve is preferably a mechanically or hydraulically actuated valve.
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