lost motion assembly on a valve bridge for use with a valve train comprising a hydraulic backlash adjuster

摘要

Summary - Lost motion assembly on a valve bridge for use with a valve train comprising a hydraulic backlash adjuster? It is an internal combustion engine comprising two or more engine valves which receive valve actuation motions from a valve actuation motion source by means of a valve train whose valve train comprises a backlash adjuster. hydraulic, a valve actuating apparatus comprises a valve bridge and a lost motion assembly disposed therein. the lost motion assembly comprises a first piston disposed in a first piston bore formed in the valve bridge. The first piston is configured to operatively connect with a valve train component. a tilt member is configured to tilt the first piston out of the first piston bore with a first force that is greater than a second force applied to the first piston by the hydraulic clearance adjuster. A travel limiter is configured to limit the travel of the first piston out of the first piston bore to be no greater than a maximum lost travel distance.