Pinnacle Engines Inc.

Jp Scope, Inc.

William Anderson

James Montague Cleeves

Guy Robert Babbitt

Charles Price

Christopher Wayne Turner

Nicholas Paul Echter

Kristina Weyer-Geigel

Michael Hawkes

Caleb A Alvarado

Stephen John Charlton

Daniel Scott Pedersen

David Evans

Clayton Jacobs

Drew Cohen

Jay McFarlane

An apparatus includes a valve and an actuator. The valve has a portion movably disposed within a valve pocket defined by a cylinder head of an engine. The valve is configured to move relative to the cylinder head a distance between a closed position and an opened position. The portion of the valve defines a flow opening that is in fluid communication with a cylinder of an engine when the valve is in the opened position. The actuator is configured to selectively vary the distance between the closed position and the opened position.

Variable travel valve apparatus for an internal combustion engine

Various types of valve systems are disclosed herein. In one embodiment, a positive control reciprocating sleeve valve system for use with an internal combustion engine includes opening and closing rockers controlled by corresponding opening and closing cam lobes. In one aspect of this embodiment, interference can be designed into the valve control system to provide additional 'hold-closed' force to hold the valve against its seat during a portion of the engine cycle. In another aspect of this embodiment, positive control valve systems can include compliant components and systems, hydraulic systems, pneumatic systems, and/or mechanical spring systems to control valve lash, facilitate sealing, etc.

Positive control (desmodromic) valve systems for internal combustion engines

Growing community of inventors

Cameron Park, CA, United States of America

William Anderson