Invention Grant
- Patent Title: System and method for valve actuation
- Patent Title (中): 阀门致动系统和方法
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Application No.: US11012324Application Date: 2004-12-16
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Publication No.: US07069888B2Publication Date: 2006-07-04
- Inventor: Zhou Yang , Brian Ruggiero
- Applicant: Zhou Yang , Brian Ruggiero
- Agency: Kelley Drye & Warren LLP
- Agent David R. Yohannan
- Main IPC: F01L9/02
- IPC: F01L9/02

Abstract:
The present invention is directed to a system and method for actuating an engine valve. In one embodiment, the present invention is a system for providing exhaust gas recirculation (EGR) in an engine having at least one engine valve, the system comprising: means for imparting a valve train motion; a first valve actuation subsystem for transferring motion from the motion imparting means to the engine valve, the first valve actuation subsystem capable of providing valve actuation for at least a portion of a main exhaust event during a first engine operating condition, and a full main exhaust event during a second engine operating condition; and a second valve actuation subsystem for transferring motion from the motion imparting means to the engine valve, the second valve actuation subsystem capable of providing valve actuation for an exhaust gas recirculation event during the first engine operating condition.
Public/Granted literature
- US20050145216A1 System and method for valve actuation Public/Granted day:2005-07-07
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