Visteon Global Technolgoies, Inc.

Zeljko Popovic

Harold Sean Hilbert

Shawn Harold Swales

Stephen James Newton

Lawrence Andrew Mianzo

Ibrahim Haskara

Brett Denton Collins

Youqing Xiang

An apparatus and a method for electromagnetically actuating engine valves to obtain soft seating. The magnitude and duration of current pulses applied to the armature attracting coils are determined based upon a total mechanical energy and a total energy loss of the armature obtained from the armature position.

Electromagnetic actuator system and method for engine valves

The variable valve mechanism of a preferred embodiment of the invention includes a valve slidably mounted to move between a closed position and an open position, a cam rotatably mounted to push the valve from the closed position toward the open position, and an electromagnet adapted to selectively hold the valve in the open position. The variable valve mechanism acquires most of the benefits of a bi-directional electromagnetic arrangement (such as increased fuel economy, decreased start-up emissions, etc.), while avoiding most of the disadvantages (costs, NVH, etc.).

Variable valve mechanism for an engine

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Sterling Heights, MI, United States of America

Zeljko Popovic