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.
Type:
Grant
Filed:
July 12, 2022
Date of Patent:
May 16, 2023
Assignee:
Jacobs Vehicle Svstems, Inc.
Inventors:
Eric J. Hodgkinson, Timothy P. Neal, Justin D. Baltrucki, G. Michael Gron, Jr.