Internal-combustion engines – Poppet valve operating mechanism – Electrical system
Reexamination Certificate
2005-04-15
2008-12-02
Eshete, Zelalem (Department: 3748)
Internal-combustion engines
Poppet valve operating mechanism
Electrical system
C123S090150, C123S090160
Reexamination Certificate
active
07458345
ABSTRACT:
A system and method for controlling electromechanical valves operating in an engine is presented. According to the method, valve timing can be adjusted in a number of ways. The method can also compensate for changes in the natural response of the valve apparatus.
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Lewis Donald J.
Winstead Vince
Alleman Hall McCoy Russell & Tuttle LLP
Eshete Zelalem
Ford Global Technologies LLC
Lippa Allan J.
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