VALVE BRIDGE CONSTRAINTS AND GUIDES AND RELATED METHODS
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United States of America Patent
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Issued Date -
Jan 12, 2023
app pub date -
Jul 12, 2022
filing date -
Jul 12, 2022
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Abstract
Valve bridge systems include constraints and guides for managing bridge jump and other uncontrolled valve bridge motion during engine operation. Constraints may include an e-foot collar, an extended portion on the bridge, and a bridge brake pin. Guides may include valve stem tip lead-in chamfers surrounding the valve bridge valve pockets as well as a deflection surface on the bridge extended portion. Methods of configuring valve bridges may include configuring the valve step tip lead-in chamfers based on worst-case positions of the valve bridge defined by one or more or a combination of the constraints provided by the e-foot collar, extended portion and brake pin.
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