Roller finger follower for valve deactivation

摘要

A deactivation roller finger follower for use with an internal combustion engine includes an elongate body. The body has a valve pallet end and a socket. The pallet end is configured for engaging a valve stem of the internal combustion engine. The socket is configured for engaging a hydraulic lash adjuster of the internal combustion engine. The body defines a roller aperture. A roller is disposed within the roller aperture. The roller is configured for engaging a cam lobe of the internal combustion engine. The roller defines a shaft orifice therethrough. An elongate shaft extends transversely through the shaft orifice. In a default operating position, the shaft is coupled to the body to thereby transfer rotary motion of the cam to pivotal movement of the body about the hydraulic lash adjuster. The shaft is selectively decoupled from the body such that the rotary motion of the cam is not transferred to pivotal movement of the body.